Sea weather in Port St Johns in South Africa All the beach weather in Port St Johns

All the essential weather information for enjoying the beach in Port St Johns in South Africa, 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 Port St Johns over the next 7 days?

Discover the best moment to go to the beach in Port St Johns in South Africa this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Port St Johns. You can see full forecasts by clicking on the day you want to see in the table below.

Date Outside temp. Our opinion
Friday 18 April 202567°F to 72°Fdiscouraged
Saturday 19 April 202565°F to 74°Fnot recommended
Sunday 20 April 202567°F to 74°Fdiscouraged
Monday 21 April 202567°F to 68°Fdiscouraged
Tuesday 22 April 202567°F to 74°Fnot recommended
Wednesday 23 April 202568°F to 72°Fdiscouraged
Thursday 24 April 202570°F to 74°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Port St Johns

Sea weather on Friday 18 April 2025

On Friday 18 April 2025, the sun will rise at 06:26 and will set at 17:39 on the beach(es) of Port St Johns. The outside temperature will be a high of 72°F t and a low of 67°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 20.5mph km/h (with gusts up to 30.5mph). Wave height will be up to 7.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature20°C (69°F)20°C (68°F)20°C (67°F)21°C (69°F)22°C (72°F)21°C (71°F)21°C (70°F)21°C (70°F)
Perceived temperature20°C (69°F)20°C (68°F)20°C (67°F)21°C (69°F)25°C (76°F)21°C (71°F)21°C (70°F)21°C (70°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity69%70%71%70%62%67%66%73%
Barometric pressure1026 hPa1025 hPa1025 hPa1026 hPa1024 hPa1022 hPa1022 hPa1023 hPa
Cloud cover100%93%73%100%73%72%82%84%
Heat index20°C (69°F)20°C (68°F)20°C (67°F)21°C (69°F)25°C (76°F)24°C (76°F)24°C (76°F)21°C (70°F)
Dew point14°C (58°F)14°C (58°F)14°C (57°F)15°C (59°F)14°C (58°F)15°C (59°F)15°C (59°F)16°C (61°F)
Wind
Speed16km/h (10mph)13km/h (8mph)14km/h (9mph)17km/h (11mph)29km/h (18mph)31km/h (19mph)33km/h (20mph)32km/h (20mph)
Gusts23km/h (15mph)20km/h (12mph)21km/h (13mph)23km/h (14mph)38km/h (24mph)44km/h (27mph)49km/h (31mph)48km/h (30mph)
Direction 80°
E
47°
NE
36°
NE
40°
NE
61°
ENE
58°
ENE
51°
NE
39°
NE
Wind chill20°C (69°F)20°C (68°F)20°C (67°F)21°C (69°F)22°C (72°F)21°C (71°F)21°C (70°F)21°C (70°F)
Waves
Height2.3m (7.7ft)2.3m (7.4ft)2.2m (7.3ft)2.2m (7.3ft)2.2m (7.3ft)2.2m (7.3ft)2.2m (7.3ft)2.2m (7.3ft)
Direction 193°
SSW
194°
SSW
193°
SSW
192°
SSW
191°
SSW
191°
S
191°
S
190°
S
Period14.4 sec.14.2 sec.14.2 sec.14.8 sec.14.5 sec.14.2 sec.13.7 sec.9.3 sec.
Significant height1.1m (3.6ft)0.4m (1.3ft)0.4m (1.3ft)0.5m (1.6ft)0.9m (3ft)1.0m (3.3ft)1.2m (3.9ft)1.1m (3.6ft)
Sea water temperature
Water temperature26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)

Sea weather on Saturday 19 April 2025

On Saturday 19 April 2025, the sun will rise at 06:27 and will set at 17:38 on the beach(es) of Port St Johns. The outside temperature will be a high of 74°F t and a low of 65°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 29.8mph). Wave height will be up to 8.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (67°F)19°C (66°F)18°C (65°F)21°C (69°F)23°C (73°F)23°C (73°F)21°C (71°F)22°C (71°F)
Perceived temperature19°C (67°F)19°C (66°F)18°C (65°F)21°C (69°F)25°C (77°F)25°C (77°F)21°C (71°F)22°C (71°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%78%80%71%65%71%77%81%
Barometric pressure1021 hPa1020 hPa1019 hPa1019 hPa1017 hPa1014 hPa1014 hPa1014 hPa
Cloud cover3%9%22%15%20%15%12%8%
Heat index19°C (67°F)19°C (66°F)18°C (65°F)21°C (69°F)25°C (77°F)25°C (77°F)24°C (76°F)24°C (76°F)
Dew point15°C (60°F)15°C (59°F)15°C (59°F)15°C (59°F)16°C (60°F)17°C (63°F)17°C (63°F)18°C (65°F)
Wind
Speed28km/h (18mph)25km/h (16mph)25km/h (15mph)26km/h (16mph)32km/h (20mph)40km/h (25mph)41km/h (25mph)31km/h (19mph)
Gusts45km/h (28mph)40km/h (25mph)39km/h (24mph)34km/h (21mph)44km/h (27mph)41km/h (26mph)46km/h (29mph)48km/h (30mph)
Direction 27°
NNE
24°
NNE
25°
NNE
33°
NNE
49°
NE
52°
NE
51°
NE
46°
NE
Wind chill19°C (67°F)19°C (66°F)18°C (65°F)21°C (69°F)23°C (73°F)23°C (73°F)21°C (71°F)22°C (71°F)
Waves
Height2.2m (7.2ft)2.2m (7.1ft)2.1m (7.1ft)2.2m (7.1ft)2.3m (7.5ft)2.5m (8.1ft)2.6m (8.4ft)2.6m (8.5ft)
Direction 181°
S
174°
S
150°
SSE
140°
SE
131°
SE
123°
ESE
117°
ESE
113°
ESE
Period9.5 sec.10.0 sec.10.5 sec.10.8 sec.10.8 sec.12.0 sec.11.3 sec.11.6 sec.
Significant height0.9m (3ft)0.9m (3ft)0.8m (2.6ft)0.9m (3ft)1.3m (4.3ft)1.9m (6.2ft)1.5m (4.9ft)1.3m (4.3ft)
Sea water temperature
Water temperature26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)

Sea weather on Sunday 20 April 2025

On Sunday 20 April 2025, the sun will rise at 06:28 and will set at 17:37 on the beach(es) of Port St Johns. The outside temperature will be a high of 74°F t and a low of 67°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 19.9mph km/h (with gusts up to 28mph). Wave height will be up to 8.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature21°C (70°F)20°C (69°F)20°C (67°F)21°C (71°F)23°C (73°F)22°C (72°F)20°C (68°F)20°C (67°F)
Perceived temperature21°C (70°F)20°C (69°F)20°C (67°F)21°C (71°F)25°C (77°F)25°C (76°F)20°C (68°F)20°C (67°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%81%76%67%77%69%74%74%
Barometric pressure1013 hPa1012 hPa1012 hPa1013 hPa1013 hPa1013 hPa1014 hPa1015 hPa
Cloud cover7%4%3%3%88%77%36%15%
Heat index21°C (70°F)20°C (69°F)20°C (67°F)24°C (76°F)25°C (77°F)25°C (76°F)20°C (68°F)20°C (67°F)
Dew point18°C (64°F)17°C (62°F)15°C (60°F)15°C (59°F)19°C (65°F)16°C (62°F)15°C (60°F)15°C (59°F)
Wind
Speed25km/h (15mph)16km/h (10mph)11km/h (7mph)3km/h (2mph)28km/h (17mph)32km/h (20mph)18km/h (11mph)13km/h (8mph)
Gusts39km/h (24mph)26km/h (16mph)19km/h (12mph)3km/h (2mph)37km/h (23mph)45km/h (28mph)29km/h (18mph)21km/h (13mph)
Direction 39°
NE
19°
NNE

N
334°
NNW
204°
SSW
213°
SSW
244°
WSW
258°
WSW
Wind chill21°C (70°F)20°C (69°F)20°C (67°F)21°C (71°F)23°C (73°F)22°C (72°F)20°C (68°F)20°C (67°F)
Waves
Height2.6m (8.5ft)2.5m (8.4ft)2.5m (8.1ft)2.4m (7.8ft)2.3m (7.6ft)2.3m (7.6ft)2.2m (7.4ft)2.2m (7.1ft)
Direction 110°
ESE
108°
ESE
107°
ESE
106°
ESE
106°
ESE
106°
ESE
108°
ESE
109°
ESE
Period11.7 sec.11.7 sec.11.7 sec.11.7 sec.11.6 sec.11.5 sec.11.4 sec.11.3 sec.
Significant height1.1m (3.6ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)1.1m (3.6ft)1.2m (3.9ft)0.7m (2.3ft)0.7m (2.3ft)
Sea water temperature
Water temperature26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)

Sea weather on Monday 21 April 2025

On Monday 21 April 2025, the sun will rise at 06:28 and will set at 17:36 on the beach(es) of Port St Johns. The outside temperature will be a high of 68°F t and a low of 67°F. Precipitation is in the forecast (0.2in 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 16.8mph km/h (with gusts up to 23mph). Wave height will be up to 7.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (67°F)19°C (67°F)19°C (66°F)19°C (66°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)
Perceived temperature19°C (67°F)19°C (67°F)19°C (66°F)19°C (66°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)
Precipitation0in0in0in0.1in0in0in0in0.1in
Humidity73%76%85%89%81%77%79%83%
Barometric pressure1015 hPa1015 hPa1016 hPa1018 hPa1017 hPa1016 hPa1016 hPa1016 hPa
Cloud cover26%87%100%100%100%100%100%100%
Heat index19°C (67°F)19°C (67°F)19°C (66°F)19°C (66°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)
Dew point14°C (58°F)15°C (59°F)16°C (61°F)17°C (63°F)16°C (62°F)16°C (60°F)16°C (61°F)17°C (63°F)
Wind
Speed17km/h (10mph)22km/h (14mph)22km/h (13mph)21km/h (13mph)12km/h (8mph)13km/h (8mph)17km/h (10mph)27km/h (17mph)
Gusts28km/h (17mph)35km/h (21mph)33km/h (20mph)28km/h (18mph)20km/h (13mph)18km/h (11mph)24km/h (15mph)37km/h (23mph)
Direction 272°
W
250°
WSW
250°
WSW
237°
WSW
150°
SSE
119°
ESE
82°
E
67°
ENE
Wind chill19°C (67°F)19°C (67°F)19°C (66°F)19°C (66°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)
Waves
Height2.1m (6.9ft)2.1m (6.9ft)2.1m (7.0ft)2.2m (7.3ft)2.2m (7.3ft)2.1m (6.9ft)1.9m (6.4ft)1.9m (6.3ft)
Direction 109°
ESE
109°
ESE
109°
ESE
110°
ESE
110°
ESE
111°
ESE
112°
ESE
116°
ESE
Period11.2 sec.11.2 sec.11.2 sec.11.2 sec.11.2 sec.11.4 sec.11.3 sec.11.2 sec.
Significant height0.8m (2.6ft)0.8m (2.6ft)0.9m (3ft)0.9m (3ft)0.8m (2.6ft)0.7m (2.3ft)0.2m (0.7ft)0.9m (3ft)
Sea water temperature
Water temperature26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)

Sea weather on Tuesday 22 April 2025

On Tuesday 22 April 2025, the sun will rise at 06:29 and will set at 17:34 on the beach(es) of Port St Johns. The outside temperature will be a high of 74°F t and a low of 67°F. Precipitation is in the forecast (0.5in 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 26.7mph km/h (with gusts up to 31.1mph). Wave height will be up to 8.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature20°C (67°F)21°C (69°F)20°C (67°F)21°C (70°F)23°C (73°F)22°C (72°F)21°C (70°F)20°C (68°F)
Perceived temperature20°C (67°F)21°C (69°F)20°C (67°F)21°C (70°F)25°C (77°F)25°C (76°F)21°C (70°F)20°C (68°F)
Precipitation0.2in0.1in0in0in0in0in0.1in0.1in
Humidity94%89%86%77%66%75%83%86%
Barometric pressure1014 hPa1012 hPa1012 hPa1013 hPa1012 hPa1013 hPa1015 hPa1017 hPa
Cloud cover100%100%82%83%28%43%77%100%
Heat index20°C (67°F)21°C (69°F)20°C (67°F)21°C (70°F)25°C (77°F)25°C (76°F)23°C (73°F)20°C (68°F)
Dew point18°C (65°F)19°C (66°F)17°C (63°F)17°C (62°F)16°C (61°F)18°C (64°F)18°C (64°F)18°C (64°F)
Wind
Speed23km/h (14mph)27km/h (17mph)11km/h (7mph)9km/h (6mph)5km/h (3mph)14km/h (9mph)23km/h (14mph)43km/h (27mph)
Gusts33km/h (20mph)37km/h (23mph)17km/h (11mph)13km/h (8mph)8km/h (5mph)21km/h (13mph)27km/h (17mph)50km/h (31mph)
Direction 52°
NE
64°
ENE
317°
NW
327°
NNW
249°
WSW
190°
S
162°
SSE
120°
ESE
Wind chill20°C (67°F)21°C (69°F)20°C (67°F)21°C (70°F)23°C (73°F)22°C (72°F)21°C (70°F)20°C (68°F)
Waves
Height2.2m (7.1ft)2.0m (6.7ft)2.0m (6.6ft)2.0m (6.5ft)2.0m (6.5ft)2.1m (6.9ft)2.4m (7.9ft)2.6m (8.5ft)
Direction 126°
SE
137°
SE
140°
SE
145°
SE
147°
SSE
151°
SSE
156°
SSE
141°
SE
Period11.1 sec.9.9 sec.10.1 sec.10.2 sec.10.2 sec.10.2 sec.9.2 sec.7.3 sec.
Significant height1.2m (3.9ft)0.6m (2ft)0.7m (2.3ft)0.6m (2ft)0.6m (2ft)0.9m (3ft)1.2m (3.9ft)1.5m (4.9ft)
Sea water temperature
Water temperature26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)

Sea weather on Wednesday 23 April 2025

On Wednesday 23 April 2025, the sun will rise at 06:30 and will set at 17:33 on the beach(es) of Port St Johns. The outside temperature will be a high of 72°F t and a low of 68°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 19.3mph km/h (with gusts up to 26.7mph). Wave height will be up to 8.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature19°C (67°F)20°C (68°F)21°C (69°F)21°C (70°F)21°C (70°F)22°C (71°F)22°C (71°F)21°C (71°F)
Perceived temperature19°C (67°F)20°C (68°F)21°C (69°F)21°C (70°F)21°C (70°F)22°C (71°F)22°C (71°F)21°C (71°F)
Precipitation0.1in0in0in0in0in0in0in0.1in
Humidity88%82%78%79%80%80%80%85%
Barometric pressure1019 hPa1019 hPa1019 hPa1020 hPa1018 hPa1017 hPa1018 hPa1018 hPa
Cloud cover100%100%100%100%100%100%100%100%
Heat index19°C (67°F)20°C (68°F)21°C (69°F)22°C (72°F)24°C (76°F)24°C (76°F)24°C (76°F)23°C (74°F)
Dew point17°C (63°F)17°C (62°F)17°C (62°F)17°C (63°F)18°C (64°F)18°C (64°F)18°C (65°F)19°C (66°F)
Wind
Speed31km/h (19mph)24km/h (15mph)18km/h (11mph)17km/h (10mph)18km/h (11mph)22km/h (14mph)27km/h (17mph)26km/h (16mph)
Gusts43km/h (27mph)33km/h (21mph)25km/h (16mph)23km/h (14mph)26km/h (16mph)33km/h (20mph)39km/h (24mph)35km/h (21mph)
Direction 137°
SE
126°
SE
112°
ESE
100°
E
90°
E
90°
E
87°
E
75°
ENE
Wind chill19°C (67°F)20°C (68°F)21°C (69°F)21°C (70°F)21°C (70°F)22°C (71°F)22°C (71°F)21°C (71°F)
Waves
Height2.5m (8.2ft)2.5m (8.2ft)2.4m (7.9ft)2.3m (7.5ft)2.2m (7.2ft)2.2m (7.2ft)2.2m (7.2ft)2.3m (7.5ft)
Direction 114°
ESE
112°
ESE
106°
ESE
134°
SE
193°
SSW
194°
SSW
195°
SSW
195°
SSW
Period7.7 sec.8.0 sec.8.2 sec.8.2 sec.8.2 sec.8.1 sec.10.1 sec.14.3 sec.
Significant height1.4m (4.6ft)1.2m (3.9ft)1.1m (3.6ft)1.3m (4.3ft)1.5m (4.9ft)1.5m (4.9ft)1.6m (5.2ft)1.4m (4.6ft)
Sea water temperature
Water temperature26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)

Sea weather on Thursday 24 April 2025

On Thursday 24 April 2025, the sun will rise at 06:30 and will set at 17:32 on the beach(es) of Port St Johns. The outside temperature will be a high of 74°F t and a low of 70°F. Precipitation is in the forecast (0.2in 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 16.8mph km/h (with gusts up to 24.2mph). Wave height will be up to 9.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature21°C (70°F)21°C (71°F)22°C (71°F)22°C (71°F)23°C (73°F)23°C (73°F)22°C (72°F)22°C (71°F)
Perceived temperature21°C (70°F)21°C (71°F)22°C (71°F)22°C (71°F)25°C (77°F)25°C (77°F)25°C (76°F)22°C (71°F)
Precipitation0.1in0.1in0.1in0in0in0in0in0in
Humidity89%89%89%85%80%79%82%84%
Barometric pressure1017 hPa1016 hPa1015 hPa1015 hPa1013 hPa1011 hPa1011 hPa1011 hPa
Cloud cover100%100%75%41%76%69%22%14%
Heat index22°C (71°F)24°C (76°F)24°C (76°F)24°C (76°F)25°C (77°F)25°C (77°F)25°C (76°F)24°C (76°F)
Dew point19°C (66°F)20°C (67°F)20°C (67°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)
Wind
Speed21km/h (13mph)23km/h (15mph)24km/h (15mph)18km/h (11mph)26km/h (16mph)27km/h (17mph)18km/h (11mph)11km/h (7mph)
Gusts25km/h (15mph)28km/h (17mph)33km/h (20mph)29km/h (18mph)35km/h (22mph)39km/h (24mph)30km/h (19mph)17km/h (11mph)
Direction 67°
ENE
65°
ENE
58°
ENE
35°
NE
51°
NE
52°
NE
32°
NNE
107°
ESE
Wind chill21°C (70°F)21°C (71°F)22°C (71°F)22°C (71°F)23°C (73°F)23°C (73°F)22°C (72°F)22°C (71°F)
Waves
Height2.2m (7.2ft)2.2m (7.2ft)2.0m (6.6ft)1.9m (6.2ft)1.8m (5.9ft)2.1m (6.9ft)2.5m (8.2ft)2.9m (9.5ft)
Direction 193°
SSW
194°
SSW
194°
SSW
192°
SSW
190°
S
194°
SSW
191°
SSW
188°
S
Period11.8 sec.9.2 sec.11.1 sec.6.9 sec.9.0 sec.13.4 sec.14.3 sec.15.2 sec.
Significant height1.3m (4.3ft)1.1m (3.6ft)1.2m (3.9ft)1.0m (3.3ft)1.1m (3.6ft)1.1m (3.6ft)0.9m (3ft)0.8m (2.6ft)
Sea water temperature
Water temperature26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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