Sea weather in Portrush in Northern Ireland All the beach weather in Portrush

All the essential weather information for enjoying the beach in Portrush in Northern Ireland, 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 Portrush over the next 7 days?

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

Date Outside temp. Our opinion
Saturday 19 April 202545°F to 49°Fdiscouraged
Sunday 20 April 202545°F to 52°Fdiscouraged
Monday 21 April 202543°F to 49°Frecommended
Tuesday 22 April 202541°F to 50°Fdiscouraged
Wednesday 23 April 202547°F to 52°Fdiscouraged
Thursday 24 April 202545°F to 52°Frecommended
Friday 25 April 202543°F to 52°Frecommended

Sea Weather: Your daily and hourly sea weather in Portrush

Sea weather on Saturday 19 April 2025

On Saturday 19 April 2025, the sun will rise at 06:13 and will set at 20:39 on the beach(es) of Portrush. The outside temperature will be a high of 49°F t and a low of 45°F. Precipitation is in the forecast (0.1in 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 21.8mph km/h (with gusts up to 31.7mph). Wave height will be up to 4.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (46°F)7°C (45°F)7°C (44°F)7°C (45°F)8°C (46°F)8°C (47°F)8°C (47°F)9°C (47°F)
Perceived temperature3°C (37°F)3°C (37°F)2°C (36°F)3°C (37°F)3°C (37°F)4°C (39°F)5°C (40°F)5°C (40°F)
Precipitation0in0in0.1in0in0in0in0in0in
Humidity94%92%93%91%92%91%91%90%
Barometric pressure1008 hPa1008 hPa1008 hPa1009 hPa1009 hPa1009 hPa1009 hPa1010 hPa
Cloud cover100%100%100%100%100%100%100%100%
Heat index8°C (46°F)7°C (45°F)7°C (44°F)7°C (45°F)8°C (46°F)8°C (47°F)8°C (47°F)9°C (47°F)
Dew point7°C (44°F)6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)7°C (44°F)7°C (45°F)7°C (45°F)
Wind
Speed35km/h (21mph)32km/h (20mph)32km/h (20mph)32km/h (20mph)34km/h (21mph)33km/h (20mph)28km/h (17mph)29km/h (18mph)
Gusts50km/h (31mph)47km/h (29mph)46km/h (29mph)47km/h (29mph)51km/h (32mph)33km/h (20mph)45km/h (28mph)45km/h (28mph)
Direction 93°
E
94°
E
95°
E
106°
ESE
107°
ESE
121°
ESE
122°
ESE
127°
SE
Wind chill3°C (37°F)3°C (37°F)2°C (36°F)3°C (37°F)3°C (37°F)4°C (39°F)5°C (40°F)5°C (40°F)
Waves
Height1.5m (5.0ft)1.5m (5.0ft)1.4m (4.7ft)1.5m (4.8ft)1.4m (4.7ft)1.2m (4.1ft)1.0m (3.2ft)0.9m (3.0ft)
Direction 74°
ENE
91°
E
96°
E
101°
ESE
106°
ESE
105°
ESE
97°
E
98°
E
Period7.4 sec.7.8 sec.7.7 sec.7.6 sec.7.7 sec.8.0 sec.8.2 sec.12.8 sec.
Significant height1.5m (4.9ft)1.4m (4.6ft)1.5m (4.9ft)1.4m (4.6ft)1.3m (4.3ft)1.2m (3.9ft)1.0m (3.3ft)1.0m (3.3ft)
Sea water temperature
Water temperature8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)

Sea weather on Sunday 20 April 2025

On Sunday 20 April 2025, the sun will rise at 06:11 and will set at 20:41 on the beach(es) of Portrush. The outside temperature will be a high of 52°F t and a low of 45°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 17.4mph km/h (with gusts up to 26.1mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (46°F)7°C (45°F)7°C (45°F)8°C (46°F)10°C (50°F)11°C (52°F)9°C (48°F)8°C (47°F)
Perceived temperature4°C (39°F)4°C (39°F)3°C (38°F)4°C (40°F)7°C (44°F)8°C (47°F)6°C (42°F)6°C (43°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity88%85%86%82%74%72%74%75%
Barometric pressure1009 hPa1008 hPa1007 hPa1007 hPa1006 hPa1005 hPa1004 hPa1005 hPa
Cloud cover100%100%100%83%82%60%100%62%
Heat index8°C (46°F)7°C (45°F)7°C (45°F)8°C (46°F)10°C (50°F)11°C (52°F)9°C (48°F)8°C (47°F)
Dew point6°C (43°F)5°C (41°F)5°C (41°F)5°C (41°F)5°C (42°F)6°C (43°F)4°C (40°F)4°C (40°F)
Wind
Speed28km/h (17mph)22km/h (14mph)24km/h (15mph)25km/h (15mph)23km/h (14mph)22km/h (14mph)21km/h (13mph)14km/h (9mph)
Gusts42km/h (26mph)34km/h (21mph)36km/h (23mph)35km/h (22mph)33km/h (21mph)34km/h (21mph)34km/h (21mph)25km/h (15mph)
Direction 130°
SE
136°
SE
136°
SE
140°
SE
141°
SE
142°
SE
137°
SE
135°
SE
Wind chill4°C (39°F)4°C (39°F)3°C (38°F)4°C (40°F)7°C (44°F)8°C (47°F)6°C (42°F)6°C (43°F)
Waves
Height1.1m (3.5ft)1.0m (3.3ft)0.9m (3.1ft)0.9m (3.0ft)0.9m (2.9ft)0.8m (2.7ft)0.6m (2.0ft)0.5m (1.7ft)
Direction 112°
ESE
114°
ESE
117°
ESE
120°
ESE
123°
ESE
125°
SE
287°
WNW
287°
WNW
Period12.3 sec.12.1 sec.12.0 sec.11.8 sec.11.4 sec.11.1 sec.10.9 sec.10.8 sec.
Significant height1.2m (3.9ft)1.1m (3.6ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)0.9m (3ft)0.7m (2.3ft)0.7m (2.3ft)
Sea water temperature
Water temperature8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)

Sea weather on Monday 21 April 2025

On Monday 21 April 2025, the sun will rise at 06:08 and will set at 20:43 on the beach(es) of Portrush. The outside temperature will be a high of 49°F t and a low of 43°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 11.8mph km/h (with gusts up to 18.6mph). Wave height will be up to 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (47°F)8°C (46°F)8°C (46°F)8°C (47°F)8°C (47°F)9°C (47°F)8°C (46°F)7°C (44°F)
Perceived temperature5°C (41°F)6°C (42°F)6°C (43°F)8°C (47°F)8°C (46°F)8°C (46°F)6°C (43°F)5°C (41°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%93%95%90%90%89%86%86%
Barometric pressure1004 hPa1004 hPa1004 hPa1005 hPa1006 hPa1007 hPa1008 hPa1010 hPa
Cloud cover100%100%100%100%100%100%75%11%
Heat index8°C (47°F)8°C (46°F)8°C (46°F)8°C (47°F)8°C (47°F)9°C (47°F)8°C (46°F)7°C (44°F)
Dew point6°C (42°F)7°C (44°F)7°C (45°F)7°C (44°F)7°C (44°F)7°C (44°F)6°C (42°F)4°C (40°F)
Wind
Speed19km/h (12mph)12km/h (7mph)9km/h (5mph)4km/h (3mph)5km/h (3mph)6km/h (4mph)9km/h (6mph)9km/h (5mph)
Gusts30km/h (19mph)18km/h (11mph)13km/h (8mph)6km/h (4mph)7km/h (4mph)9km/h (6mph)15km/h (9mph)17km/h (10mph)
Direction 136°
SE
140°
SE
167°
SSE
209°
SSW
193°
SSW
229°
SW
297°
WNW
199°
SSW
Wind chill5°C (41°F)6°C (42°F)6°C (43°F)8°C (47°F)8°C (46°F)8°C (46°F)6°C (43°F)5°C (41°F)
Waves
Height0.6m (2.1ft)0.7m (2.4ft)0.6m (1.9ft)0.4m (1.5ft)0.4m (1.3ft)0.6m (1.9ft)0.7m (2.4ft)0.8m (2.5ft)
Direction 118°
ESE
118°
ESE
119°
ESE
287°
WNW
292°
WNW
288°
WNW
290°
WNW
290°
WNW
Period10.8 sec.10.7 sec.10.3 sec.4.3 sec.3.6 sec.13.5 sec.13.2 sec.13.0 sec.
Significant height0.9m (3ft)0.8m (2.6ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)0.7m (2.3ft)1.0m (3.3ft)1.1m (3.6ft)
Sea water temperature
Water temperature8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)

Sea weather on Tuesday 22 April 2025

On Tuesday 22 April 2025, the sun will rise at 06:06 and will set at 20:45 on the beach(es) of Portrush. The outside temperature will be a high of 50°F t and a low of 41°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 17.4mph km/h (with gusts up to 26.7mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature6°C (42°F)5°C (41°F)5°C (41°F)9°C (48°F)8°C (47°F)9°C (48°F)9°C (47°F)8°C (47°F)
Perceived temperature3°C (38°F)2°C (36°F)2°C (36°F)7°C (45°F)5°C (41°F)5°C (41°F)5°C (41°F)6°C (42°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity87%90%89%79%92%91%88%88%
Barometric pressure1011 hPa1011 hPa1011 hPa1012 hPa1011 hPa1011 hPa1012 hPa1013 hPa
Cloud cover8%15%53%100%100%97%84%96%
Heat index6°C (42°F)5°C (41°F)5°C (41°F)9°C (48°F)8°C (47°F)9°C (48°F)9°C (47°F)8°C (47°F)
Dew point4°C (38°F)4°C (38°F)4°C (38°F)5°C (42°F)7°C (44°F)7°C (45°F)7°C (44°F)6°C (43°F)
Wind
Speed11km/h (7mph)13km/h (8mph)13km/h (8mph)9km/h (6mph)19km/h (12mph)28km/h (17mph)28km/h (17mph)15km/h (9mph)
Gusts22km/h (13mph)26km/h (16mph)23km/h (15mph)13km/h (8mph)30km/h (18mph)42km/h (26mph)43km/h (27mph)27km/h (17mph)
Direction 176°
S
165°
SSE
160°
SSE
115°
ESE
99°
E
110°
ESE
111°
ESE
61°
ENE
Wind chill3°C (38°F)2°C (36°F)2°C (36°F)7°C (45°F)5°C (41°F)5°C (41°F)5°C (41°F)6°C (42°F)
Waves
Height0.7m (2.5ft)0.7m (2.4ft)0.7m (2.3ft)0.7m (2.2ft)0.6m (2.1ft)0.6m (2.0ft)0.6m (1.9ft)0.5m (1.8ft)
Direction 287°
WNW
288°
WNW
290°
WNW
288°
WNW
289°
WNW
290°
WNW
287°
WNW
287°
WNW
Period12.4 sec.12.0 sec.11.6 sec.11.1 sec.10.9 sec.10.7 sec.10.3 sec.10.0 sec.
Significant height1.1m (3.6ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)0.9m (3ft)0.9m (3ft)0.9m (3ft)0.8m (2.6ft)
Sea water temperature
Water temperature10°C (49°F)10°C (49°F)10°C (49°F)10°C (49°F)10°C (49°F)10°C (49°F)10°C (49°F)10°C (49°F)

Sea weather on Wednesday 23 April 2025

On Wednesday 23 April 2025, the sun will rise at 06:04 and will set at 20:47 on the beach(es) of Portrush. The outside temperature will be a high of 52°F t and a low of 47°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 14.3mph km/h (with gusts up to 24.2mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (48°F)9°C (48°F)9°C (47°F)10°C (50°F)10°C (50°F)11°C (52°F)10°C (50°F)10°C (49°F)
Perceived temperature6°C (42°F)6°C (42°F)5°C (41°F)7°C (45°F)8°C (46°F)9°C (48°F)8°C (47°F)9°C (48°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity86%85%82%78%72%71%79%79%
Barometric pressure1014 hPa1015 hPa1017 hPa1019 hPa1020 hPa1021 hPa1021 hPa1023 hPa
Cloud cover100%80%25%5%4%19%62%45%
Heat index9°C (48°F)9°C (48°F)9°C (47°F)10°C (50°F)10°C (50°F)11°C (52°F)10°C (50°F)10°C (49°F)
Dew point7°C (44°F)6°C (43°F)6°C (42°F)6°C (43°F)5°C (41°F)6°C (43°F)7°C (44°F)6°C (43°F)
Wind
Speed22km/h (14mph)21km/h (13mph)23km/h (14mph)21km/h (13mph)17km/h (10mph)14km/h (9mph)15km/h (9mph)6km/h (4mph)
Gusts39km/h (24mph)36km/h (22mph)37km/h (23mph)30km/h (18mph)29km/h (18mph)24km/h (15mph)25km/h (16mph)11km/h (7mph)
Direction 33°
NNE
64°
ENE
61°
ENE
70°
ENE
59°
ENE
21°
NNE
355°
N
24°
NNE
Wind chill6°C (42°F)6°C (42°F)5°C (41°F)7°C (45°F)8°C (46°F)9°C (48°F)8°C (47°F)9°C (48°F)
Waves
Height0.6m (1.8ft)0.6m (2.0ft)0.6m (2.1ft)0.6m (2.1ft)0.7m (2.2ft)0.6m (2.1ft)0.6m (2.0ft)0.5m (1.8ft)
Direction 288°
WNW
290°
WNW
287°
WNW
291°
WNW
338°
NNW
287°
WNW
288°
WNW
288°
WNW
Period9.9 sec.4.5 sec.4.6 sec.4.6 sec.9.5 sec.12.2 sec.4.5 sec.11.7 sec.
Significant height0.7m (2.3ft)0.5m (1.6ft)0.8m (2.6ft)0.8m (2.6ft)0.5m (1.6ft)0.7m (2.3ft)0.6m (2ft)0.5m (1.6ft)
Sea water temperature
Water temperature8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)

Sea weather on Thursday 24 April 2025

On Thursday 24 April 2025, the sun will rise at 06:01 and will set at 20:49 on the beach(es) of Portrush. The outside temperature will be a high of 52°F t and a low of 45°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 9.3mph km/h (with gusts up to 14.3mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (47°F)8°C (46°F)7°C (44°F)9°C (47°F)10°C (51°F)11°C (51°F)10°C (49°F)8°C (46°F)
Perceived temperature7°C (44°F)6°C (42°F)5°C (41°F)7°C (44°F)10°C (49°F)9°C (47°F)8°C (46°F)6°C (43°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity84%83%84%76%73%73%79%79%
Barometric pressure1023 hPa1024 hPa1024 hPa1024 hPa1024 hPa1023 hPa1023 hPa1023 hPa
Cloud cover59%71%100%33%70%87%72%51%
Heat index8°C (47°F)8°C (46°F)7°C (44°F)9°C (47°F)10°C (51°F)11°C (51°F)10°C (49°F)8°C (46°F)
Dew point6°C (42°F)5°C (41°F)4°C (40°F)5°C (40°F)6°C (42°F)6°C (43°F)6°C (43°F)5°C (40°F)
Wind
Speed8km/h (5mph)11km/h (7mph)11km/h (7mph)11km/h (7mph)8km/h (5mph)15km/h (9mph)13km/h (8mph)10km/h (6mph)
Gusts15km/h (9mph)17km/h (10mph)16km/h (10mph)15km/h (10mph)11km/h (7mph)23km/h (14mph)22km/h (14mph)18km/h (11mph)
Direction 124°
ESE
134°
SE
141°
SE
145°
SE
100°
E
82°
E
102°
ESE
135°
SE
Wind chill7°C (44°F)6°C (42°F)5°C (41°F)7°C (44°F)10°C (49°F)9°C (47°F)8°C (46°F)6°C (43°F)
Waves
Height0.5m (1.7ft)0.5m (1.8ft)0.5m (1.7ft)0.5m (1.6ft)0.5m (1.5ft)0.5m (1.6ft)0.6m (2.0ft)0.6m (1.8ft)
Direction 285°
WNW
285°
WNW
285°
WNW
286°
WNW
286°
WNW
286°
WNW
285°
WNW
296°
WNW
Period11.2 sec.4.3 sec.4.5 sec.4.6 sec.11.2 sec.11.2 sec.11.3 sec.11.4 sec.
Significant height0.4m (1.3ft)0.6m (2ft)0.6m (2ft)0.5m (1.6ft)0.5m (1.6ft)0.7m (2.3ft)0.7m (2.3ft)0.5m (1.6ft)
Sea water temperature
Water temperature8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)

Sea weather on Friday 25 April 2025

On Friday 25 April 2025, the sun will rise at 05:59 and will set at 20:51 on the beach(es) of Portrush. The outside temperature will be a high of 52°F t and a low of 43°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 10.6mph km/h (with gusts up to 14.3mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (46°F)7°C (44°F)6°C (44°F)9°C (47°F)10°C (50°F)11°C (51°F)10°C (50°F)7°C (45°F)
Perceived temperature6°C (42°F)4°C (40°F)4°C (38°F)6°C (43°F)9°C (48°F)9°C (48°F)8°C (47°F)5°C (41°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity79%80%82%73%70%72%76%85%
Barometric pressure1024 hPa1023 hPa1024 hPa1024 hPa1024 hPa1025 hPa1025 hPa1026 hPa
Cloud cover67%63%66%23%86%72%36%38%
Heat index8°C (46°F)7°C (44°F)6°C (44°F)9°C (47°F)10°C (50°F)11°C (51°F)10°C (50°F)7°C (45°F)
Dew point4°C (39°F)3°C (38°F)4°C (38°F)4°C (39°F)5°C (41°F)6°C (42°F)6°C (42°F)5°C (41°F)
Wind
Speed10km/h (6mph)11km/h (7mph)14km/h (9mph)17km/h (10mph)9km/h (6mph)11km/h (7mph)10km/h (6mph)10km/h (6mph)
Gusts18km/h (11mph)20km/h (13mph)23km/h (15mph)22km/h (14mph)13km/h (8mph)16km/h (10mph)16km/h (10mph)20km/h (12mph)
Direction 139°
SE
134°
SE
145°
SE
159°
SSE
142°
SE
128°
SE
147°
SSE
156°
SSE
Wind chill6°C (42°F)4°C (40°F)4°C (38°F)6°C (43°F)9°C (48°F)9°C (48°F)8°C (47°F)5°C (41°F)
Waves
Height0.5m (1.8ft)0.6m (1.8ft)0.6m (1.9ft)0.7m (2.2ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.4ft)0.7m (2.3ft)
Direction 297°
WNW
293°
WNW
293°
WNW
294°
WNW
294°
WNW
298°
WNW
295°
WNW
291°
WNW
Period14.1 sec.13.8 sec.13.1 sec.13.1 sec.13.0 sec.15.6 sec.14.5 sec.13.6 sec.
Significant height0.8m (2.6ft)0.8m (2.6ft)0.9m (3ft)1.0m (3.3ft)0.7m (2.3ft)0.7m (2.3ft)1.0m (3.3ft)1.0m (3.3ft)
Sea water temperature
Water temperature8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)8°C (46°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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