Sea weather in Letterkenny in Ireland All the beach weather in Letterkenny

All the essential weather information for enjoying the beach in Letterkenny in 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 Letterkenny over the next 7 days?

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

Date Outside temp. Our opinion
Wednesday 3 June 202650°F to 56°Fdiscouraged
Thursday 4 June 202650°F to 54°Fnot recommended
Friday 5 June 202650°F to 54°Fdiscouraged
Saturday 6 June 202650°F to 54°Fdiscouraged
Sunday 7 June 202649°F to 54°Fnot recommended
Monday 8 June 202649°F to 52°Fdiscouraged
Tuesday 9 June 202650°F to 56°Fnot recommended

Sea Weather: Your daily and hourly sea weather in Letterkenny

Sea weather on Wednesday 3 June 2026

On Wednesday 3 June 2026, the sun will rise at 04:57 and will set at 22:01 on the beach(es) of Letterkenny. The outside temperature will be a high of 56°F t and a low of 50°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 23mph km/h (with gusts up to 31.7mph). Wave height will be up to 3.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature11°C (52°F)10°C (49°F)10°C (50°F)11°C (51°F)12°C (53°F)13°C (55°F)11°C (53°F)11°C (52°F)
Perceived temperature9°C (48°F)8°C (46°F)7°C (44°F)7°C (45°F)9°C (49°F)10°C (50°F)9°C (47°F)8°C (46°F)
Precipitation0in0in0in0in0.1in0in0in0in
Humidity88%91%93%92%92%85%91%88%
Barometric pressure1001 hPa998 hPa993 hPa989 hPa986 hPa985 hPa983 hPa981 hPa
Cloud cover47%66%100%100%100%93%100%100%
Heat index11°C (52°F)10°C (49°F)10°C (50°F)11°C (51°F)12°C (53°F)13°C (55°F)11°C (53°F)11°C (52°F)
Dew point9°C (49°F)8°C (47°F)9°C (48°F)10°C (49°F)10°C (51°F)10°C (50°F)10°C (50°F)9°C (48°F)
Wind
Speed20km/h (12mph)14km/h (9mph)27km/h (17mph)37km/h (23mph)22km/h (14mph)27km/h (17mph)28km/h (17mph)33km/h (21mph)
Gusts29km/h (18mph)25km/h (16mph)38km/h (24mph)51km/h (32mph)34km/h (21mph)40km/h (25mph)43km/h (27mph)49km/h (31mph)
Direction 225°
SW
154°
SSE
133°
SE
159°
SSE
181°
S
219°
SW
216°
SW
195°
SSW
Wind chill9°C (48°F)8°C (46°F)7°C (44°F)7°C (45°F)9°C (49°F)10°C (50°F)9°C (47°F)8°C (46°F)
Waves
Height1.1m (3.7ft)1.2m (4.0ft)1.2m (3.9ft)1.2m (3.8ft)1.1m (3.5ft)1.0m (3.2ft)1.0m (3.2ft)1.1m (3.7ft)
Direction 292°
WNW
292°
WNW
289°
WNW
290°
WNW
290°
WNW
287°
WNW
287°
WNW
287°
WNW
Period14.8 sec.9.6 sec.13.4 sec.13.1 sec.12.8 sec.12.3 sec.12.0 sec.11.8 sec.
Significant height0.6m (2ft)0.3m (1ft)0.4m (1.3ft)0.8m (2.6ft)0.3m (1ft)0.5m (1.6ft)0.4m (1.3ft)0.2m (0.7ft)
Sea water temperature
Water temperature9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)

Sea weather on Thursday 4 June 2026

On Thursday 4 June 2026, the sun will rise at 04:56 and will set at 22:02 on the beach(es) of Letterkenny. The outside temperature will be a high of 54°F t and a low of 50°F. Precipitation is in the forecast (0.1in 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 26.1mph km/h (with gusts up to 36.7mph). Wave height will be up to 9.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (54°F)12°C (53°F)11°C (52°F)10°C (51°F)
Perceived temperature9°C (48°F)8°C (47°F)9°C (49°F)9°C (47°F)9°C (49°F)9°C (48°F)8°C (47°F)6°C (44°F)
Precipitation0in0in0in0in0in0in0in0.1in
Humidity92%92%92%92%83%85%89%92%
Barometric pressure980 hPa981 hPa984 hPa988 hPa990 hPa993 hPa995 hPa998 hPa
Cloud cover100%100%100%100%70%100%100%100%
Heat index12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (54°F)12°C (53°F)11°C (52°F)10°C (51°F)
Dew point11°C (51°F)10°C (51°F)10°C (51°F)10°C (50°F)9°C (49°F)9°C (49°F)10°C (49°F)9°C (48°F)
Wind
Speed35km/h (22mph)34km/h (21mph)20km/h (13mph)30km/h (19mph)30km/h (19mph)28km/h (18mph)32km/h (20mph)42km/h (26mph)
Gusts51km/h (32mph)48km/h (30mph)28km/h (18mph)41km/h (26mph)44km/h (27mph)42km/h (26mph)50km/h (31mph)59km/h (37mph)
Direction 246°
WSW
288°
WNW
288°
WNW
303°
WNW
279°
W
285°
WNW
280°
W
281°
W
Wind chill9°C (48°F)8°C (47°F)9°C (49°F)9°C (47°F)9°C (49°F)9°C (48°F)8°C (47°F)6°C (44°F)
Waves
Height1.3m (4.1ft)1.5m (4.8ft)1.5m (4.9ft)1.5m (4.9ft)1.9m (6.2ft)2.1m (6.9ft)2.4m (7.8ft)2.9m (9.4ft)
Direction 286°
WNW
281°
W
280°
W
280°
W
281°
W
280°
W
283°
WNW
283°
WNW
Period11.6 sec.11.5 sec.11.1 sec.11.2 sec.12.6 sec.12.3 sec.12.6 sec.7.5 sec.
Significant height1.0m (3.3ft)0.9m (3ft)0.6m (2ft)0.9m (3ft)1.2m (3.9ft)1.1m (3.6ft)1.3m (4.3ft)1.4m (4.6ft)
Sea water temperature
Water temperature9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)

Sea weather on Friday 5 June 2026

On Friday 5 June 2026, the sun will rise at 04:56 and will set at 22:03 on the beach(es) of Letterkenny. The outside temperature will be a high of 54°F t and a low of 50°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 22.4mph km/h (with gusts up to 31.1mph). Wave height will be up to 9.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature11°C (51°F)10°C (50°F)10°C (51°F)11°C (52°F)12°C (53°F)11°C (52°F)11°C (52°F)11°C (52°F)
Perceived temperature7°C (44°F)6°C (44°F)8°C (46°F)9°C (48°F)10°C (50°F)10°C (50°F)10°C (51°F)9°C (47°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity79%75%75%70%67%71%82%83%
Barometric pressure1000 hPa1002 hPa1003 hPa1004 hPa1004 hPa1004 hPa1003 hPa1002 hPa
Cloud cover74%66%75%87%55%93%100%51%
Heat index11°C (51°F)10°C (50°F)10°C (51°F)11°C (52°F)12°C (53°F)11°C (52°F)11°C (52°F)11°C (52°F)
Dew point7°C (45°F)6°C (43°F)6°C (43°F)6°C (43°F)6°C (42°F)6°C (43°F)8°C (47°F)8°C (47°F)
Wind
Speed36km/h (22mph)31km/h (19mph)23km/h (15mph)23km/h (14mph)14km/h (9mph)10km/h (6mph)9km/h (6mph)21km/h (13mph)
Gusts50km/h (31mph)46km/h (28mph)34km/h (21mph)31km/h (19mph)21km/h (13mph)14km/h (9mph)15km/h (9mph)33km/h (21mph)
Direction 271°
W
265°
W
253°
WSW
239°
WSW
255°
WSW
21°
NNE
119°
ESE
132°
SE
Wind chill7°C (44°F)6°C (44°F)8°C (46°F)9°C (48°F)10°C (50°F)10°C (50°F)10°C (51°F)9°C (47°F)
Waves
Height2.9m (9.5ft)2.6m (8.7ft)2.3m (7.7ft)2.1m (6.9ft)1.9m (6.3ft)1.8m (5.8ft)1.7m (5.5ft)1.6m (5.2ft)
Direction 288°
WNW
290°
WNW
290°
WNW
292°
WNW
293°
WNW
295°
WNW
294°
WNW
292°
WNW
Period12.0 sec.12.1 sec.11.5 sec.11.0 sec.11.2 sec.11.2 sec.11.2 sec.10.4 sec.
Significant height1.1m (3.6ft)0.9m (3ft)0.8m (2.6ft)0.8m (2.6ft)0.6m (2ft)0.3m (1ft)0.1m (0.3ft)0.3m (1ft)
Sea water temperature
Water temperature9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)

Sea weather on Saturday 6 June 2026

On Saturday 6 June 2026, the sun will rise at 04:55 and will set at 22:04 on the beach(es) of Letterkenny. The outside temperature will be a high of 54°F t and a low of 50°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 23.6mph km/h (with gusts up to 32.9mph). Wave height will be up to 8.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature11°C (51°F)10°C (50°F)10°C (51°F)11°C (51°F)11°C (52°F)12°C (53°F)12°C (53°F)11°C (52°F)
Perceived temperature7°C (45°F)7°C (44°F)6°C (44°F)7°C (45°F)8°C (47°F)11°C (51°F)9°C (48°F)8°C (46°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity85%91%89%91%93%95%94%86%
Barometric pressure1001 hPa998 hPa997 hPa996 hPa996 hPa997 hPa1000 hPa1004 hPa
Cloud cover95%100%100%100%100%100%100%64%
Heat index11°C (51°F)10°C (50°F)10°C (51°F)11°C (51°F)11°C (52°F)12°C (53°F)12°C (53°F)11°C (52°F)
Dew point8°C (47°F)9°C (48°F)9°C (47°F)9°C (49°F)10°C (50°F)11°C (52°F)11°C (51°F)9°C (48°F)
Wind
Speed27km/h (17mph)34km/h (21mph)38km/h (23mph)33km/h (20mph)25km/h (16mph)9km/h (6mph)24km/h (15mph)35km/h (22mph)
Gusts40km/h (25mph)48km/h (30mph)53km/h (33mph)47km/h (29mph)37km/h (23mph)14km/h (9mph)38km/h (23mph)51km/h (32mph)
Direction 132°
SE
120°
ESE
118°
ESE
116°
ESE
123°
ESE
164°
SSE
259°
W
261°
W
Wind chill7°C (45°F)7°C (44°F)6°C (44°F)7°C (45°F)8°C (47°F)11°C (51°F)9°C (48°F)8°C (46°F)
Waves
Height1.5m (5.0ft)1.5m (4.9ft)1.4m (4.7ft)1.3m (4.4ft)1.2m (4.0ft)1.1m (3.6ft)1.5m (4.8ft)2.6m (8.6ft)
Direction 292°
WNW
293°
WNW
294°
WNW
295°
WNW
295°
WNW
294°
WNW
293°
WNW
283°
WNW
Period10.4 sec.10.9 sec.10.9 sec.10.8 sec.10.8 sec.10.7 sec.4.5 sec.4.5 sec.
Significant height0.6m (2ft)0.9m (3ft)1.1m (3.6ft)1.0m (3.3ft)0.6m (2ft)0.3m (1ft)1.6m (5.2ft)1.6m (5.2ft)
Sea water temperature
Water temperature9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)

Sea weather on Sunday 7 June 2026

On Sunday 7 June 2026, the sun will rise at 04:54 and will set at 22:05 on the beach(es) of Letterkenny. The outside temperature will be a high of 54°F t and a low of 49°F. Precipitation is in the forecast (0.1in 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 26.1mph km/h (with gusts up to 34.8mph). Wave height will be up to 8.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (50°F)9°C (49°F)12°C (53°F)12°C (54°F)12°C (53°F)12°C (54°F)10°C (51°F)9°C (48°F)
Perceived temperature7°C (45°F)6°C (44°F)9°C (48°F)9°C (48°F)8°C (47°F)9°C (49°F)9°C (47°F)9°C (48°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity76%85%88%75%71%68%78%89%
Barometric pressure1006 hPa1005 hPa1005 hPa1007 hPa1009 hPa1010 hPa1009 hPa1008 hPa
Cloud cover70%100%100%85%89%100%100%100%
Heat index10°C (50°F)9°C (49°F)12°C (53°F)12°C (54°F)12°C (53°F)12°C (54°F)10°C (51°F)9°C (48°F)
Dew point6°C (43°F)7°C (45°F)10°C (49°F)8°C (46°F)7°C (44°F)6°C (43°F)7°C (44°F)7°C (45°F)
Wind
Speed23km/h (14mph)22km/h (14mph)22km/h (14mph)42km/h (26mph)36km/h (23mph)28km/h (18mph)14km/h (9mph)1km/h (0mph)
Gusts34km/h (21mph)34km/h (21mph)35km/h (22mph)56km/h (35mph)52km/h (32mph)41km/h (26mph)20km/h (13mph)1km/h (1mph)
Direction 223°
SW
160°
SSE
199°
SSW
227°
SW
244°
WSW
252°
WSW
249°
WSW
332°
NNW
Wind chill7°C (45°F)6°C (44°F)9°C (48°F)9°C (48°F)8°C (47°F)9°C (49°F)9°C (47°F)9°C (48°F)
Waves
Height2.5m (8.2ft)2.1m (7.1ft)1.8m (5.9ft)1.6m (5.2ft)2.1m (6.9ft)2.0m (6.5ft)1.7m (5.6ft)1.5m (5.0ft)
Direction 288°
WNW
287°
WNW
286°
WNW
286°
WNW
276°
W
285°
WNW
289°
WNW
289°
WNW
Period4.5 sec.8.7 sec.9.1 sec.9.8 sec.6.3 sec.9.9 sec.10.6 sec.10.5 sec.
Significant height1.2m (3.9ft)0.8m (2.6ft)0.5m (1.6ft)0.7m (2.3ft)1.4m (4.6ft)0.9m (3ft)0.6m (2ft)0.5m (1.6ft)
Sea water temperature
Water temperature9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)

Sea weather on Monday 8 June 2026

On Monday 8 June 2026, the sun will rise at 04:54 and will set at 22:06 on the beach(es) of Letterkenny. The outside temperature will be a high of 52°F t and a low of 49°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 6.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (49°F)10°C (50°F)11°C (51°F)11°C (52°F)11°C (53°F)11°C (52°F)11°C (51°F)11°C (51°F)
Perceived temperature9°C (49°F)7°C (45°F)8°C (46°F)8°C (47°F)8°C (47°F)8°C (47°F)7°C (45°F)7°C (45°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity88%80%72%71%74%75%76%79%
Barometric pressure1008 hPa1008 hPa1009 hPa1010 hPa1012 hPa1012 hPa1013 hPa1014 hPa
Cloud cover100%50%78%76%81%89%77%77%
Heat index9°C (49°F)10°C (50°F)11°C (51°F)11°C (52°F)11°C (53°F)11°C (52°F)11°C (51°F)11°C (51°F)
Dew point7°C (45°F)7°C (44°F)6°C (43°F)6°C (43°F)7°C (44°F)7°C (45°F)6°C (44°F)7°C (45°F)
Wind
Speed4km/h (2mph)19km/h (12mph)23km/h (14mph)30km/h (19mph)33km/h (20mph)33km/h (21mph)30km/h (19mph)29km/h (18mph)
Gusts6km/h (4mph)29km/h (18mph)33km/h (20mph)41km/h (25mph)46km/h (29mph)49km/h (31mph)36km/h (22mph)43km/h (27mph)
Direction 266°
W
267°
W
275°
W
267°
W
253°
WSW
255°
WSW
251°
WSW
238°
WSW
Wind chill9°C (49°F)7°C (45°F)8°C (46°F)8°C (47°F)8°C (47°F)8°C (47°F)7°C (45°F)7°C (45°F)
Waves
Height1.4m (4.5ft)1.2m (4.1ft)1.5m (5.1ft)1.9m (6.2ft)1.8m (5.9ft)1.6m (5.3ft)1.6m (5.2ft)1.3m (4.3ft)
Direction 286°
WNW
287°
WNW
286°
WNW
277°
W
277°
W
283°
WNW
281°
W
280°
W
Period10.3 sec.10.2 sec.5.7 sec.5.7 sec.5.7 sec.5.7 sec.9.7 sec.9.6 sec.
Significant height0.8m (2.6ft)0.7m (2.3ft)1.0m (3.3ft)1.2m (3.9ft)1.0m (3.3ft)1.0m (3.3ft)0.9m (3ft)0.3m (1ft)
Sea water temperature
Water temperature9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)

Sea weather on Tuesday 9 June 2026

On Tuesday 9 June 2026, the sun will rise at 04:53 and will set at 22:07 on the beach(es) of Letterkenny. The outside temperature will be a high of 56°F t and a low of 50°F. Precipitation is in the forecast (0.1in 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 26.1mph km/h (with gusts up to 29.8mph). Wave height will be up to 5.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (51°F)11°C (51°F)11°C (51°F)11°C (52°F)11°C (51°F)11°C (52°F)12°C (54°F)13°C (55°F)
Perceived temperature7°C (45°F)7°C (45°F)8°C (46°F)8°C (47°F)8°C (46°F)8°C (47°F)9°C (48°F)10°C (50°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%80%79%80%85%86%83%82%
Barometric pressure1013 hPa1013 hPa1012 hPa1012 hPa1011 hPa1007 hPa1003 hPa1000 hPa
Cloud cover53%100%79%57%100%100%100%100%
Heat index10°C (51°F)11°C (51°F)11°C (51°F)11°C (52°F)11°C (51°F)11°C (52°F)12°C (54°F)13°C (55°F)
Dew point7°C (45°F)7°C (45°F)7°C (45°F)8°C (46°F)8°C (47°F)9°C (48°F)10°C (49°F)10°C (50°F)
Wind
Speed30km/h (19mph)31km/h (19mph)32km/h (20mph)32km/h (20mph)28km/h (17mph)31km/h (19mph)39km/h (24mph)42km/h (26mph)
Gusts43km/h (27mph)45km/h (28mph)44km/h (27mph)45km/h (28mph)42km/h (26mph)48km/h (30mph)43km/h (27mph)47km/h (29mph)
Direction 227°
SW
226°
SW
220°
SW
219°
SW
204°
SSW
183°
S
190°
S
189°
S
Wind chill7°C (45°F)7°C (45°F)8°C (46°F)8°C (47°F)8°C (46°F)8°C (47°F)9°C (48°F)10°C (50°F)
Waves
Height1.3m (4.3ft)1.6m (5.2ft)1.7m (5.5ft)1.6m (5.1ft)1.7m (5.4ft)1.7m (5.6ft)1.6m (5.4ft)1.6m (5.4ft)
Direction 279°
W
279°
W
284°
WNW
286°
WNW
286°
WNW
285°
WNW
287°
WNW
286°
WNW
Period9.4 sec.9.5 sec.5.9 sec.6.3 sec.6.1 sec.6.5 sec.7.8 sec.9.2 sec.
Significant height0.9m (3ft)1.0m (3.3ft)0.9m (3ft)0.9m (3ft)1.1m (3.6ft)1.0m (3.3ft)0.8m (2.6ft)0.6m (2ft)
Sea water temperature
Water temperature9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)9°C (49°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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