Sea weather in Saint John in Canada All the beach weather in Saint John
All the essential weather information for enjoying the beach in Saint John in Canada, for swimming, tanning or water sports! Our sea weather data is reliable, easy to read and updated every day.
Weather: When should you go to the beach in Saint John over the next 7 days?
Discover the best moment to go to the beach in Saint John in Canada this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Saint John. You can see full forecasts by clicking on the day you want to see in the table below.
| Date | Outside temp. | Max wind | Our opinion | Details |
|---|---|---|---|---|
| Monday 15 December 2025 | 16°F to 23°F | 15.5mph | not recommended | all the sea weather |
| Tuesday 16 December 2025 | 16°F to 29°F | 5mph | not recommended | all the sea weather |
| Wednesday 17 December 2025 | 34°F to 43°F | 19.3mph | not recommended | all the sea weather |
| Thursday 18 December 2025 | 27°F to 40°F | 17.4mph | not recommended | all the sea weather |
| Friday 19 December 2025 | 32°F to 54°F | 19.3mph | not recommended | all the sea weather |
| Saturday 20 December 2025 | 18°F to 23°F | 6.8mph | not recommended | all the sea weather |
| Sunday 21 December 2025 | 27°F to 43°F | 9.3mph | discouraged | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Saint John
Sea weather on Monday 15 December 2025
On Monday 15 December 2025, the sun will rise at 07:57 and will set at 16:42 on the beach(es) of Saint John. The outside temperature will be a high of 23°F t and a low of 16°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 18.6mph km/h (with gusts up to 25.5mph). Wave height will be up to 3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  |  | |  |  | | | |
| Outside temperature | -5°C (23°F) | -6°C (21°F) | -7°C (19°F) | -7°C (19°F) | -7°C (20°F) | -7°C (20°F) | -8°C (18°F) | -8°C (17°F) |
| Perceived temperature | -12°C (11°F) | -13°C (8°F) | -14°C (6°F) | -15°C (4°F) | -15°C (6°F) | -15°C (5°F) | -16°C (3°F) | -17°C (2°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 89% | 88% | 86% | 79% | 71% | 69% | 72% | 74% |
| Barometric pressure | 1005 hPa | 1004 hPa | 1004 hPa | 1005 hPa | 1005 hPa | 1006 hPa | 1008 hPa | 1010 hPa |
| Cloud cover | 89% | 68% | 57% | 46% | 72% | 81% | 100% | 59% |
| Heat index | -5°C (23°F) | -6°C (21°F) | -7°C (19°F) | -7°C (19°F) | -7°C (20°F) | -7°C (20°F) | -8°C (18°F) | -8°C (17°F) |
| Dew point | -7°C (20°F) | -8°C (18°F) | -9°C (16°F) | -10°C (13°F) | -11°C (13°F) | -11°C (11°F) | -12°C (11°F) | -12°C (10°F) |
| Wind | ||||||||
| Speed | 21km/h (13mph) | 20km/h (12mph) | 22km/h (14mph) | 26km/h (16mph) | 28km/h (17mph) | 30km/h (19mph) | 28km/h (17mph) | 25km/h (16mph) |
| Gusts | 29km/h (18mph) | 27km/h (17mph) | 30km/h (19mph) | 34km/h (21mph) | 34km/h (21mph) | 38km/h (24mph) | 41km/h (25mph) | 35km/h (22mph) |
| Direction | 339° NNW | 338° NNW | 331° NNW | 322° NW | 308° NW | 295° WNW | 297° WNW | 297° WNW |
| Wind chill | -12°C (11°F) | -13°C (8°F) | -14°C (6°F) | -15°C (4°F) | -15°C (6°F) | -15°C (5°F) | -16°C (3°F) | -17°C (2°F) |
| Waves | ||||||||
| Height | 0.6m (1.9ft) | 0.6m (2.0ft) | 0.6m (1.9ft) | 0.6m (1.9ft) | 0.7m (2.3ft) | 0.8m (2.7ft) | 0.9m (2.9ft) | 0.7m (2.4ft) |
| Direction | 66° ENE | 10° N | 346° NNW | 329° NNW | 310° NW | 291° WNW | 278° W | 281° W |
| Period | 4.2 sec. | 7.2 sec. | 4.1 sec. | 4.2 sec. | 10.7 sec. | 10.2 sec. | 9.9 sec. | 9.7 sec. |
| Significant height | 0.8m (2.6ft) | 0.9m (3ft) | 0.8m (2.6ft) | 0.9m (3ft) | 1.1m (3.6ft) | 1.2m (3.9ft) | 1.1m (3.6ft) | 0.9m (3ft) |
| Sea water temperature | ||||||||
| Water temperature | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) |
Sea weather on Tuesday 16 December 2025
On Tuesday 16 December 2025, the sun will rise at 07:58 and will set at 16:42 on the beach(es) of Saint John. The outside temperature will be a high of 29°F t and a low of 16°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 13.1mph km/h (with gusts up to 18.6mph). Wave height will be up to 2.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | -8°C (17°F) | -8°C (17°F) | -9°C (16°F) | -8°C (18°F) | -5°C (23°F) | -3°C (26°F) | -5°C (23°F) | -4°C (24°F) |
| Perceived temperature | -16°C (3°F) | -16°C (4°F) | -16°C (4°F) | -14°C (8°F) | -11°C (13°F) | -9°C (15°F) | -10°C (15°F) | -8°C (18°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 73% | 75% | 77% | 74% | 63% | 63% | 75% | 80% |
| Barometric pressure | 1011 hPa | 1014 hPa | 1015 hPa | 1017 hPa | 1018 hPa | 1018 hPa | 1018 hPa | 1018 hPa |
| Cloud cover | 36% | 30% | 10% | 10% | 7% | 10% | 18% | 36% |
| Heat index | -8°C (17°F) | -8°C (17°F) | -9°C (16°F) | -8°C (18°F) | -5°C (23°F) | -3°C (26°F) | -5°C (23°F) | -4°C (24°F) |
| Dew point | -12°C (10°F) | -12°C (10°F) | -12°C (10°F) | -12°C (11°F) | -11°C (12°F) | -9°C (15°F) | -9°C (17°F) | -7°C (19°F) |
| Wind | ||||||||
| Speed | 21km/h (13mph) | 20km/h (13mph) | 17km/h (11mph) | 12km/h (8mph) | 15km/h (10mph) | 19km/h (12mph) | 12km/h (8mph) | 8km/h (5mph) |
| Gusts | 29km/h (18mph) | 28km/h (17mph) | 25km/h (15mph) | 17km/h (11mph) | 22km/h (14mph) | 30km/h (19mph) | 25km/h (16mph) | 17km/h (10mph) |
| Direction | 291° WNW | 289° WNW | 286° WNW | 287° WNW | 264° W | 259° WSW | 269° W | 242° WSW |
| Wind chill | -16°C (3°F) | -16°C (4°F) | -16°C (4°F) | -14°C (8°F) | -11°C (13°F) | -9°C (15°F) | -10°C (15°F) | -8°C (18°F) |
| Waves | ||||||||
| Height | 0.7m (2.2ft) | 0.6m (2.0ft) | 0.5m (1.7ft) | 0.5m (1.5ft) | 0.4m (1.4ft) | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.5m (1.6ft) |
| Direction | 274° W | 272° W | 257° WSW | 260° W | 269° W | 253° WSW | 241° WSW | 232° SW |
| Period | 9.5 sec. | 9.2 sec. | 9.0 sec. | 4.7 sec. | 8.5 sec. | 6.7 sec. | 7.7 sec. | 7.4 sec. |
| Significant height | 0.9m (3ft) | 0.8m (2.6ft) | 0.7m (2.3ft) | 0.6m (2ft) | 0.6m (2ft) | 0.6m (2ft) | 0.6m (2ft) | 0.4m (1.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) |
Sea weather on Wednesday 17 December 2025
On Wednesday 17 December 2025, the sun will rise at 07:58 and will set at 16:43 on the beach(es) of Saint John. The outside temperature will be a high of 43°F t and a low of 34°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! Be careful, the sea will be generally rough with a wind speed of up to 25.5mph km/h (with gusts up to 35.4mph). Wave height will be up to 9.8ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  |  | |  | | | | |
| Outside temperature | 1°C (34°F) | 3°C (38°F) | 4°C (39°F) | 4°C (40°F) | 5°C (41°F) | 6°C (42°F) | 6°C (43°F) | 5°C (40°F) |
| Perceived temperature | -5°C (24°F) | -3°C (27°F) | -2°C (28°F) | -1°C (30°F) | -0°C (31°F) | 0°C (33°F) | 0°C (33°F) | -0°C (31°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 72% | 70% | 73% | 78% | 79% | 78% | 81% | 81% |
| Barometric pressure | 1015 hPa | 1013 hPa | 1011 hPa | 1008 hPa | 1006 hPa | 1004 hPa | 1002 hPa | 1002 hPa |
| Cloud cover | 100% | 100% | 100% | 100% | 95% | 95% | 100% | 16% |
| Heat index | 1°C (34°F) | 3°C (38°F) | 4°C (39°F) | 4°C (40°F) | 5°C (41°F) | 6°C (42°F) | 6°C (43°F) | 5°C (40°F) |
| Dew point | -3°C (26°F) | -2°C (29°F) | -1°C (31°F) | 1°C (34°F) | 2°C (35°F) | 2°C (36°F) | 3°C (37°F) | 2°C (35°F) |
| Wind | ||||||||
| Speed | 25km/h (16mph) | 34km/h (21mph) | 36km/h (22mph) | 37km/h (23mph) | 40km/h (25mph) | 39km/h (24mph) | 41km/h (26mph) | 31km/h (19mph) |
| Gusts | 42km/h (26mph) | 51km/h (31mph) | 54km/h (33mph) | 53km/h (33mph) | 57km/h (35mph) | 43km/h (27mph) | 46km/h (29mph) | 37km/h (23mph) |
| Direction | 223° SW | 216° SW | 221° SW | 221° SW | 220° SW | 220° SW | 226° SW | 244° WSW |
| Wind chill | -5°C (24°F) | -3°C (27°F) | -2°C (28°F) | -1°C (30°F) | -0°C (31°F) | 0°C (33°F) | 0°C (33°F) | -0°C (31°F) |
| Waves | ||||||||
| Height | 0.6m (2.0ft) | 1.2m (4.1ft) | 1.6m (5.3ft) | 2.0m (6.4ft) | 2.3m (7.5ft) | 2.7m (8.8ft) | 3.0m (9.8ft) | 2.6m (8.7ft) |
| Direction | 225° SW | 217° SW | 213° SSW | 210° SSW | 209° SSW | 210° SSW | 209° SSW | 211° SSW |
| Period | 7.2 sec. | 7.2 sec. | 7.2 sec. | 7.2 sec. | 7.2 sec. | 7.2 sec. | 7.2 sec. | 7.2 sec. |
| Significant height | 0.9m (3ft) | 1.4m (4.6ft) | 1.5m (4.9ft) | 1.7m (5.6ft) | 1.8m (5.9ft) | 2.0m (6.6ft) | 2.0m (6.6ft) | 1.8m (5.9ft) |
| Sea water temperature | ||||||||
| Water temperature | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) |
Sea weather on Thursday 18 December 2025
On Thursday 18 December 2025, the sun will rise at 07:59 and will set at 16:43 on the beach(es) of Saint John. The outside temperature will be a high of 40°F t and a low of 27°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 23mph km/h (with gusts up to 28.6mph). Wave height will be up to 6.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | |  | | | | | |
| Outside temperature | 4°C (40°F) | 3°C (37°F) | -2°C (29°F) | -2°C (28°F) | -1°C (30°F) | 0°C (33°F) | 1°C (33°F) | 3°C (37°F) |
| Perceived temperature | -1°C (30°F) | -4°C (25°F) | -9°C (15°F) | -7°C (19°F) | -5°C (23°F) | -3°C (26°F) | -4°C (24°F) | -2°C (28°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 78% | 68% | 68% | 63% | 53% | 59% | 67% | 75% |
| Barometric pressure | 1004 hPa | 1008 hPa | 1016 hPa | 1022 hPa | 1024 hPa | 1024 hPa | 1023 hPa | 1020 hPa |
| Cloud cover | 26% | 68% | 0% | 14% | 7% | 20% | 17% | 50% |
| Heat index | 4°C (40°F) | 3°C (37°F) | -2°C (29°F) | -2°C (28°F) | -1°C (30°F) | 0°C (33°F) | 1°C (33°F) | 3°C (37°F) |
| Dew point | 1°C (34°F) | -3°C (27°F) | -7°C (19°F) | -8°C (17°F) | -9°C (16°F) | -7°C (20°F) | -5°C (24°F) | -1°C (30°F) |
| Wind | ||||||||
| Speed | 32km/h (20mph) | 37km/h (23mph) | 33km/h (21mph) | 15km/h (9mph) | 12km/h (8mph) | 12km/h (7mph) | 19km/h (12mph) | 28km/h (17mph) |
| Gusts | 33km/h (21mph) | 41km/h (26mph) | 46km/h (29mph) | 21km/h (13mph) | 18km/h (11mph) | 18km/h (11mph) | 36km/h (22mph) | 43km/h (27mph) |
| Direction | 243° WSW | 267° W | 305° NW | 293° WNW | 298° WNW | 215° SW | 191° S | 187° S |
| Wind chill | -1°C (30°F) | -4°C (25°F) | -9°C (15°F) | -7°C (19°F) | -5°C (23°F) | -3°C (26°F) | -4°C (24°F) | -2°C (28°F) |
| Waves | ||||||||
| Height | 2.0m (6.6ft) | 1.7m (5.7ft) | 1.6m (5.2ft) | 1.3m (4.3ft) | 0.8m (2.8ft) | 0.6m (1.9ft) | 0.4m (1.4ft) | 0.6m (2.0ft) |
| Direction | 211° SSW | 213° SSW | 212° SSW | 213° SSW | 214° SW | 213° SSW | 212° SSW | 204° SSW |
| Period | 7.2 sec. | 7.2 sec. | 8.8 sec. | 9.0 sec. | 9.2 sec. | 9.2 sec. | 9.1 sec. | 9.1 sec. |
| Significant height | 1.4m (4.6ft) | 1.5m (4.9ft) | 1.8m (5.9ft) | 1.9m (6.2ft) | 1.1m (3.6ft) | 0.8m (2.6ft) | 0.6m (2ft) | 1.0m (3.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) |
Sea weather on Friday 19 December 2025
On Friday 19 December 2025, the sun will rise at 07:59 and will set at 16:44 on the beach(es) of Saint John. The outside temperature will be a high of 54°F t and a low of 32°F. Precipitation is in the forecast (0.2in throughout the day): choose the right time to go to the beach and dodge the raindrops. Be careful, the sea will be generally rough with a wind speed of up to 34.8mph km/h (with gusts up to 35.4mph). Wave height will be up to 13.1ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | |  | | | | |
| Outside temperature | 5°C (41°F) | 8°C (47°F) | 10°C (50°F) | 11°C (52°F) | 11°C (53°F) | 11°C (52°F) | 9°C (47°F) | 3°C (38°F) |
| Perceived temperature | -1°C (31°F) | 4°C (38°F) | 5°C (42°F) | 7°C (44°F) | 7°C (45°F) | 6°C (44°F) | 4°C (39°F) | -2°C (28°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0.1in | 0.1in | 0in |
| Humidity | 82% | 80% | 90% | 88% | 85% | 91% | 89% | 74% |
| Barometric pressure | 1017 hPa | 1012 hPa | 1006 hPa | 1002 hPa | 997 hPa | 990 hPa | 988 hPa | 991 hPa |
| Cloud cover | 57% | 100% | 100% | 95% | 100% | 100% | 90% | 56% |
| Heat index | 5°C (41°F) | 8°C (47°F) | 10°C (50°F) | 11°C (52°F) | 11°C (53°F) | 11°C (52°F) | 9°C (47°F) | 3°C (38°F) |
| Dew point | 2°C (36°F) | 5°C (41°F) | 8°C (47°F) | 9°C (48°F) | 9°C (48°F) | 9°C (49°F) | 7°C (44°F) | -1°C (31°F) |
| Wind | ||||||||
| Speed | 36km/h (23mph) | 41km/h (26mph) | 50km/h (31mph) | 49km/h (31mph) | 54km/h (34mph) | 56km/h (35mph) | 48km/h (30mph) | 31km/h (19mph) |
| Gusts | 38km/h (24mph) | 47km/h (29mph) | 53km/h (33mph) | 54km/h (34mph) | 56km/h (35mph) | 57km/h (36mph) | 53km/h (33mph) | 45km/h (28mph) |
| Direction | 186° S | 181° S | 189° S | 190° S | 188° S | 193° SSW | 225° SW | 270° W |
| Wind chill | -1°C (31°F) | 4°C (38°F) | 5°C (42°F) | 7°C (44°F) | 7°C (45°F) | 6°C (44°F) | 4°C (39°F) | -2°C (28°F) |
| Waves | ||||||||
| Height | 1.0m (3.3ft) | 1.6m (5.4ft) | 2.3m (7.5ft) | 3.2m (10.5ft) | 4.0m (13.1ft) | 4.0m (13.1ft) | 2.7m (8.9ft) | 1.8m (5.9ft) |
| Direction | 199° SSW | 197° SSW | 195° SSW | 196° SSW | 198° SSW | 198° SSW | 202° SSW | 206° SSW |
| Period | 9.1 sec. | 9.1 sec. | 9.1 sec. | 9.1 sec. | 9.1 sec. | 9.1 sec. | 9.4 sec. | 10.1 sec. |
| Significant height | 1.3m (4.3ft) | 1.6m (5.2ft) | 1.9m (6.2ft) | 2.4m (7.9ft) | 2.7m (8.9ft) | 2.2m (7.2ft) | 0.9m (3ft) | 1.6m (5.2ft) |
| Sea water temperature | ||||||||
| Water temperature | 5°C (41°F) | 5°C (41°F) | 5°C (41°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) |
Sea weather on Saturday 20 December 2025
On Saturday 20 December 2025, the sun will rise at 08:00 and will set at 16:44 on the beach(es) of Saint John. The outside temperature will be a high of 23°F t and a low of 18°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 23mph km/h (with gusts up to 29.8mph). Wave height will be up to 5.2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  | | |  | | | | |
| Outside temperature | -1°C (29°F) | -5°C (23°F) | -6°C (21°F) | -7°C (20°F) | -7°C (19°F) | -7°C (19°F) | -7°C (20°F) | -6°C (22°F) |
| Perceived temperature | -9°C (16°F) | -13°C (8°F) | -15°C (5°F) | -16°C (3°F) | -16°C (3°F) | -15°C (5°F) | -13°C (8°F) | -10°C (13°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 70% | 69% | 60% | 55% | 46% | 43% | 46% | 48% |
| Barometric pressure | 994 hPa | 1000 hPa | 1006 hPa | 1012 hPa | 1017 hPa | 1020 hPa | 1023 hPa | 1025 hPa |
| Cloud cover | 52% | 100% | 100% | 66% | 0% | 1% | 15% | 55% |
| Heat index | -1°C (29°F) | -5°C (23°F) | -6°C (21°F) | -7°C (20°F) | -7°C (19°F) | -7°C (19°F) | -7°C (20°F) | -6°C (22°F) |
| Dew point | -6°C (21°F) | -10°C (15°F) | -13°C (10°F) | -15°C (6°F) | -17°C (1°F) | -18°C (1°F) | -16°C (3°F) | -15°C (5°F) |
| Wind | ||||||||
| Speed | 36km/h (22mph) | 36km/h (22mph) | 37km/h (23mph) | 35km/h (22mph) | 32km/h (20mph) | 26km/h (16mph) | 18km/h (11mph) | 11km/h (7mph) |
| Gusts | 48km/h (30mph) | 43km/h (27mph) | 44km/h (27mph) | 41km/h (25mph) | 35km/h (22mph) | 35km/h (22mph) | 32km/h (20mph) | 15km/h (10mph) |
| Direction | 273° W | 281° WNW | 285° WNW | 292° WNW | 298° WNW | 302° WNW | 303° WNW | 287° WNW |
| Wind chill | -9°C (16°F) | -13°C (8°F) | -15°C (5°F) | -16°C (3°F) | -16°C (3°F) | -15°C (5°F) | -13°C (8°F) | -10°C (13°F) |
| Waves | ||||||||
| Height | 1.6m (5.2ft) | 1.6m (5.2ft) | 1.6m (5.2ft) | 1.4m (4.6ft) | 1.2m (3.9ft) | 1.0m (3.3ft) | 0.7m (2.3ft) | 0.5m (1.6ft) |
| Direction | 212° SSW | 227° SW | 222° SW | 205° SSW | 207° SSW | 207° SSW | 206° SSW | 205° SSW |
| Period | 10.2 sec. | 10.0 sec. | 10.0 sec. | 10.1 sec. | 10.3 sec. | 10.4 sec. | 10.3 sec. | 10.2 sec. |
| Significant height | 1.6m (5.2ft) | 1.6m (5.2ft) | 1.6m (5.2ft) | 1.6m (5.2ft) | 1.4m (4.6ft) | 1.2m (3.9ft) | 0.9m (3ft) | 0.6m (2ft) |
| Sea water temperature | ||||||||
| Water temperature | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) |
Sea weather on Sunday 21 December 2025
On Sunday 21 December 2025, the sun will rise at 08:01 and will set at 16:44 on the beach(es) of Saint John. The outside temperature will be a high of 43°F t and a low of 27°F. Precipitation is in the forecast (0.3in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 22.4mph km/h (with gusts up to 29.8mph). Wave height will be up to 7.5ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | |  | | | | |  |  |
| Outside temperature | -5°C (23°F) | -2°C (28°F) | 1°C (33°F) | 3°C (38°F) | 6°C (42°F) | 6°C (43°F) | 5°C (42°F) | 4°C (39°F) |
| Perceived temperature | -8°C (17°F) | -7°C (19°F) | -6°C (22°F) | -3°C (27°F) | 0°C (33°F) | 2°C (35°F) | 2°C (35°F) | 1°C (33°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0.1in |
| Humidity | 49% | 66% | 94% | 96% | 95% | 94% | 95% | 97% |
| Barometric pressure | 1024 hPa | 1022 hPa | 1019 hPa | 1014 hPa | 1010 hPa | 1007 hPa | 1006 hPa | 1005 hPa |
| Cloud cover | 75% | 64% | 100% | 100% | 100% | 100% | 100% | 100% |
| Heat index | -5°C (23°F) | -2°C (28°F) | 1°C (33°F) | 3°C (38°F) | 6°C (42°F) | 6°C (43°F) | 5°C (42°F) | 4°C (39°F) |
| Dew point | -14°C (7°F) | -8°C (17°F) | -0°C (32°F) | 3°C (37°F) | 5°C (40°F) | 5°C (41°F) | 5°C (40°F) | 4°C (39°F) |
| Wind | ||||||||
| Speed | 7km/h (4mph) | 17km/h (11mph) | 31km/h (19mph) | 36km/h (22mph) | 36km/h (22mph) | 29km/h (18mph) | 20km/h (13mph) | 15km/h (9mph) |
| Gusts | 10km/h (6mph) | 25km/h (16mph) | 44km/h (27mph) | 48km/h (30mph) | 39km/h (24mph) | 36km/h (22mph) | 34km/h (21mph) | 25km/h (15mph) |
| Direction | 248° WSW | 199° SSW | 200° SSW | 199° SSW | 210° SSW | 226° SW | 239° WSW | 260° W |
| Wind chill | -8°C (17°F) | -7°C (19°F) | -6°C (22°F) | -3°C (27°F) | 0°C (33°F) | 2°C (35°F) | 2°C (35°F) | 1°C (33°F) |
| Waves | ||||||||
| Height | 0.4m (1.3ft) | 0.6m (2.0ft) | 1.3m (4.3ft) | 1.9m (6.2ft) | 2.3m (7.5ft) | 2.2m (7.2ft) | 1.6m (5.2ft) | 1.1m (3.6ft) |
| Direction | 205° SSW | 204° SSW | 199° SSW | 199° SSW | 201° SSW | 204° SSW | 205° SSW | 208° SSW |
| Period | 9.9 sec. | 9.7 sec. | 9.7 sec. | 9.7 sec. | 9.7 sec. | 8.9 sec. | 7.7 sec. | 8.4 sec. |
| Significant height | 0.6m (2ft) | 1.0m (3.3ft) | 1.5m (4.9ft) | 1.5m (4.9ft) | 1.6m (5.2ft) | 1.1m (3.6ft) | 0.7m (2.3ft) | 0.8m (2.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) |