Sea weather in Dundalk in Ireland All the beach weather in Dundalk

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

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

Date Outside temp. Our opinion
Sunday 19 July 202652°F to 61°Frecommended
Monday 20 July 202654°F to 65°Frecommended
Tuesday 21 July 202654°F to 67°Frecommended
Wednesday 22 July 202654°F to 63°Frecommended
Thursday 23 July 202652°F to 65°Frecommended
Friday 24 July 202654°F to 67°Frecommended
Saturday 25 July 202656°F to 59°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Dundalk

Sea weather on Sunday 19 July 2026

On Sunday 19 July 2026, the sun will rise at 05:19 and will set at 21:44 on the beach(es) of Dundalk. The outside temperature will be a high of 61°F t and a low of 52°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 8.7mph km/h (with gusts up to 16.2mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (54°F)12°C (53°F)12°C (53°F)15°C (58°F)15°C (60°F)16°C (61°F)16°C (60°F)14°C (58°F)
Perceived temperature11°C (51°F)10°C (50°F)10°C (50°F)15°C (58°F)15°C (60°F)16°C (61°F)16°C (60°F)14°C (57°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity88%87%83%74%72%67%70%77%
Barometric pressure1025 hPa1025 hPa1026 hPa1027 hPa1027 hPa1028 hPa1028 hPa1029 hPa
Cloud cover13%26%19%10%13%24%35%17%
Heat index12°C (54°F)12°C (53°F)12°C (53°F)15°C (58°F)15°C (60°F)16°C (61°F)16°C (60°F)14°C (58°F)
Dew point10°C (51°F)9°C (49°F)9°C (48°F)10°C (50°F)10°C (51°F)10°C (50°F)10°C (50°F)10°C (51°F)
Wind
Speed14km/h (9mph)12km/h (7mph)12km/h (8mph)6km/h (4mph)5km/h (3mph)4km/h (3mph)4km/h (3mph)10km/h (6mph)
Gusts26km/h (16mph)21km/h (13mph)20km/h (13mph)9km/h (6mph)8km/h (5mph)7km/h (4mph)7km/h (4mph)18km/h (11mph)
Direction 336°
NNW
345°
NNW
346°
NNW
344°
NNW
186°
S
125°
SE
69°
ENE
340°
NNW
Wind chill11°C (51°F)10°C (50°F)10°C (50°F)15°C (58°F)15°C (60°F)16°C (61°F)16°C (60°F)14°C (57°F)
Waves
Height0.2m (0.7ft)0.2m (0.7ft)0.2m (0.5ft)0.1m (0.4ft)0.4m (1.3ft)0.4m (1.3ft)0.3m (0.9ft)0.6m (1.9ft)
Direction 28°
NNE
353°
N

N

N
121°
ESE
157°
SSE
156°
SSE
56°
ENE
Period2.9 sec.2.8 sec.2.7 sec.2.0 sec.2.1 sec.2.4 sec.2.4 sec.3.3 sec.
Significant height0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)0.2m (0.7ft)0.1m (0.3ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)
Sea water temperature
Water temperature12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)

Sea weather on Monday 20 July 2026

On Monday 20 July 2026, the sun will rise at 05:20 and will set at 21:43 on the beach(es) of Dundalk. The outside temperature will be a high of 65°F t and a low of 54°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 9.9mph km/h (with gusts up to 16.8mph). Wave height will be up to 1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (54°F)14°C (56°F)14°C (57°F)15°C (60°F)16°C (61°F)18°C (64°F)16°C (61°F)14°C (57°F)
Perceived temperature11°C (52°F)12°C (54°F)13°C (56°F)15°C (60°F)16°C (61°F)18°C (64°F)16°C (61°F)13°C (55°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity86%86%83%78%73%71%78%87%
Barometric pressure1029 hPa1029 hPa1029 hPa1029 hPa1030 hPa1030 hPa1030 hPa1031 hPa
Cloud cover12%16%22%74%90%59%51%5%
Heat index12°C (54°F)14°C (56°F)14°C (57°F)15°C (60°F)16°C (61°F)18°C (64°F)16°C (61°F)14°C (57°F)
Dew point10°C (50°F)11°C (52°F)11°C (52°F)12°C (53°F)11°C (53°F)12°C (54°F)12°C (54°F)12°C (53°F)
Wind
Speed14km/h (9mph)14km/h (9mph)10km/h (6mph)10km/h (6mph)14km/h (9mph)15km/h (9mph)4km/h (2mph)16km/h (10mph)
Gusts25km/h (16mph)20km/h (12mph)16km/h (10mph)14km/h (9mph)21km/h (13mph)26km/h (16mph)7km/h (4mph)27km/h (17mph)
Direction 333°
NNW
343°
NNW
330°
NNW
337°
NNW
335°
NNW
357°
N
293°
WNW
339°
NNW
Wind chill11°C (52°F)12°C (54°F)13°C (56°F)15°C (60°F)16°C (61°F)18°C (64°F)16°C (61°F)13°C (55°F)
Waves
Height0.2m (0.5ft)0.2m (0.6ft)0.2m (0.6ft)0.2m (0.6ft)0.2m (0.5ft)0.2m (0.6ft)0.2m (0.7ft)0.3m (0.9ft)
Direction 330°
NNW
326°
NW
334°
NNW

N
357°
N
18°
NNE
48°
NE
23°
NNE
Period3.1 sec.3.0 sec.2.8 sec.3.3 sec.3.4 sec.3.7 sec.3.5 sec.3.5 sec.
Significant height0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.3m (1ft)0.4m (1.3ft)0.2m (0.7ft)0.3m (1ft)0.5m (1.6ft)
Sea water temperature
Water temperature12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)

Sea weather on Tuesday 21 July 2026

On Tuesday 21 July 2026, the sun will rise at 05:22 and will set at 21:41 on the beach(es) of Dundalk. The outside temperature will be a high of 67°F t and a low of 54°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 9.9mph km/h (with gusts up to 17.4mph). Wave height will be up to 1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (55°F)13°C (55°F)13°C (56°F)16°C (60°F)17°C (63°F)18°C (65°F)17°C (62°F)14°C (57°F)
Perceived temperature12°C (53°F)12°C (54°F)12°C (54°F)16°C (60°F)17°C (63°F)18°C (65°F)17°C (62°F)13°C (55°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity91%87%89%83%76%66%71%84%
Barometric pressure1031 hPa1031 hPa1031 hPa1032 hPa1032 hPa1031 hPa1031 hPa1031 hPa
Cloud cover23%3%17%14%17%4%7%79%
Heat index13°C (55°F)13°C (55°F)13°C (56°F)16°C (60°F)17°C (63°F)18°C (65°F)17°C (62°F)14°C (57°F)
Dew point11°C (53°F)11°C (52°F)11°C (52°F)13°C (55°F)13°C (56°F)12°C (53°F)11°C (52°F)12°C (53°F)
Wind
Speed14km/h (9mph)10km/h (6mph)10km/h (6mph)8km/h (5mph)4km/h (3mph)9km/h (6mph)8km/h (5mph)16km/h (10mph)
Gusts23km/h (14mph)17km/h (10mph)16km/h (10mph)12km/h (7mph)7km/h (5mph)19km/h (12mph)16km/h (10mph)28km/h (17mph)
Direction 335°
NNW
334°
NNW
342°
NNW
332°
NNW
320°
NW
351°
N

N
323°
NW
Wind chill12°C (53°F)12°C (54°F)12°C (54°F)16°C (60°F)17°C (63°F)18°C (65°F)17°C (62°F)13°C (55°F)
Waves
Height0.2m (0.8ft)0.2m (0.6ft)0.1m (0.4ft)0.1m (0.4ft)0.3m (1.1ft)0.2m (0.5ft)0.3m (1.1ft)0.1m (0.5ft)
Direction 11°
N
346°
NNW
20°
NNE
24°
NNE
10°
N
133°
SE
153°
SSE
352°
N
Period2.9 sec.2.8 sec.2.8 sec.2.8 sec.2.8 sec.2.6 sec.2.0 sec.4.1 sec.
Significant height0.5m (1.6ft)0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.1m (0.3ft)0.1m (0.3ft)0.1m (0.3ft)0.4m (1.3ft)
Sea water temperature
Water temperature12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)

Sea weather on Wednesday 22 July 2026

On Wednesday 22 July 2026, the sun will rise at 05:23 and will set at 21:40 on the beach(es) of Dundalk. The outside temperature will be a high of 63°F t and a low of 54°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 19.3mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (54°F)12°C (54°F)13°C (56°F)15°C (60°F)17°C (62°F)17°C (63°F)17°C (62°F)15°C (58°F)
Perceived temperature10°C (50°F)11°C (51°F)12°C (53°F)15°C (60°F)17°C (62°F)17°C (63°F)17°C (62°F)14°C (56°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity90%86%85%87%81%77%75%84%
Barometric pressure1030 hPa1029 hPa1028 hPa1027 hPa1027 hPa1026 hPa1025 hPa1026 hPa
Cloud cover36%52%23%74%79%79%81%27%
Heat index12°C (54°F)12°C (54°F)13°C (56°F)15°C (60°F)17°C (62°F)17°C (63°F)17°C (62°F)15°C (58°F)
Dew point11°C (51°F)10°C (50°F)11°C (51°F)13°C (56°F)13°C (56°F)13°C (56°F)12°C (54°F)12°C (53°F)
Wind
Speed18km/h (11mph)15km/h (9mph)18km/h (11mph)19km/h (12mph)18km/h (11mph)19km/h (12mph)17km/h (10mph)14km/h (9mph)
Gusts30km/h (18mph)24km/h (15mph)26km/h (16mph)27km/h (17mph)28km/h (17mph)31km/h (19mph)28km/h (18mph)25km/h (15mph)
Direction 330°
NNW
324°
NW
319°
NW
327°
NNW
338°
NNW
331°
NNW
328°
NNW
325°
NW
Wind chill10°C (50°F)11°C (51°F)12°C (53°F)15°C (60°F)17°C (62°F)17°C (63°F)17°C (62°F)14°C (56°F)
Waves
Height0.3m (0.9ft)0.3m (1.0ft)0.3m (0.9ft)0.3m (0.9ft)0.2m (0.8ft)0.4m (1.2ft)0.4m (1.3ft)0.3m (0.9ft)
Direction 329°
NNW
324°
NW
324°
NW
324°
NW
332°
NNW
339°
NNW

N
15°
NNE
Period3.3 sec.3.2 sec.3.4 sec.4.1 sec.3.6 sec.4.4 sec.4.9 sec.3.5 sec.
Significant height0.6m (2ft)0.6m (2ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.7m (2.3ft)0.5m (1.6ft)0.4m (1.3ft)
Sea water temperature
Water temperature12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)

Sea weather on Thursday 23 July 2026

On Thursday 23 July 2026, the sun will rise at 05:25 and will set at 21:38 on the beach(es) of Dundalk. The outside temperature will be a high of 65°F t and a low of 52°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 18mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (54°F)12°C (53°F)12°C (53°F)15°C (59°F)16°C (61°F)18°C (64°F)17°C (62°F)16°C (60°F)
Perceived temperature10°C (51°F)10°C (50°F)10°C (51°F)15°C (59°F)16°C (61°F)18°C (64°F)17°C (62°F)16°C (60°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity89%86%88%76%72%73%80%78%
Barometric pressure1026 hPa1025 hPa1025 hPa1025 hPa1025 hPa1024 hPa1023 hPa1023 hPa
Cloud cover6%3%13%4%13%63%85%0%
Heat index12°C (54°F)12°C (53°F)12°C (53°F)15°C (59°F)16°C (61°F)18°C (64°F)17°C (62°F)16°C (60°F)
Dew point10°C (50°F)9°C (49°F)10°C (49°F)11°C (52°F)11°C (52°F)13°C (55°F)13°C (56°F)12°C (53°F)
Wind
Speed14km/h (9mph)15km/h (9mph)11km/h (7mph)7km/h (4mph)4km/h (2mph)10km/h (6mph)14km/h (9mph)14km/h (9mph)
Gusts24km/h (15mph)26km/h (16mph)18km/h (11mph)9km/h (6mph)6km/h (4mph)16km/h (10mph)29km/h (18mph)28km/h (17mph)
Direction 329°
NNW
329°
NNW
336°
NNW
336°
NNW
155°
SSE
202°
SSW
215°
SW
322°
NW
Wind chill10°C (51°F)10°C (50°F)10°C (51°F)15°C (59°F)16°C (61°F)18°C (64°F)17°C (62°F)16°C (60°F)
Waves
Height0.3m (1.0ft)0.3m (0.9ft)0.2m (0.7ft)0.1m (0.5ft)0.1m (0.3ft)0.4m (1.4ft)0.1m (0.3ft)0.1m (0.3ft)
Direction 344°
NNW
341°
NNW
343°
NNW
355°
N
71°
ENE
136°
SE
150°
SSE
126°
SE
Period3.3 sec.3.2 sec.3.1 sec.2.9 sec.3.2 sec.3.0 sec.2.7 sec.2.1 sec.
Significant height0.6m (2ft)0.5m (1.6ft)0.4m (1.3ft)0.3m (1ft)0.2m (0.7ft)0.1m (0.3ft)0.3m (1ft)0.1m (0.3ft)
Sea water temperature
Water temperature12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)

Sea weather on Friday 24 July 2026

On Friday 24 July 2026, the sun will rise at 05:26 and will set at 21:37 on the beach(es) of Dundalk. The outside temperature will be a high of 67°F t and a low of 54°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 19.9mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (55°F)12°C (54°F)12°C (54°F)15°C (60°F)18°C (64°F)19°C (65°F)18°C (64°F)15°C (60°F)
Perceived temperature11°C (52°F)11°C (51°F)11°C (52°F)15°C (60°F)18°C (64°F)19°C (65°F)18°C (64°F)15°C (60°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%90%87%76%67%65%69%74%
Barometric pressure1023 hPa1021 hPa1021 hPa1020 hPa1018 hPa1017 hPa1016 hPa1015 hPa
Cloud cover2%17%12%10%9%29%49%49%
Heat index13°C (55°F)12°C (54°F)12°C (54°F)15°C (60°F)18°C (64°F)19°C (65°F)18°C (64°F)15°C (60°F)
Dew point10°C (50°F)11°C (51°F)10°C (50°F)11°C (52°F)11°C (52°F)12°C (53°F)12°C (53°F)11°C (51°F)
Wind
Speed15km/h (9mph)15km/h (9mph)15km/h (9mph)15km/h (9mph)15km/h (9mph)15km/h (10mph)15km/h (9mph)12km/h (7mph)
Gusts30km/h (19mph)24km/h (15mph)24km/h (15mph)21km/h (13mph)28km/h (17mph)32km/h (20mph)29km/h (18mph)22km/h (14mph)
Direction 315°
NW
305°
NW
277°
W
262°
W
263°
W
263°
W
308°
NW
288°
WNW
Wind chill11°C (52°F)11°C (51°F)11°C (52°F)15°C (60°F)18°C (64°F)19°C (65°F)18°C (64°F)15°C (60°F)
Waves
Height0.4m (1.3ft)0.1m (0.4ft)0.2m (0.5ft)0.2m (0.5ft)0.2m (0.6ft)0.2m (0.5ft)0.2m (0.8ft)0.3m (0.9ft)
Direction 151°
SSE
289°
WNW
302°
WNW
268°
W
245°
WSW
248°
WSW
198°
SSW
161°
SSE
Period3.0 sec.3.3 sec.3.0 sec.3.0 sec.3.0 sec.3.0 sec.2.7 sec.3.1 sec.
Significant height0.1m (0.3ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.3m (1ft)0.4m (1.3ft)
Sea water temperature
Water temperature12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)

Sea weather on Saturday 25 July 2026

On Saturday 25 July 2026, the sun will rise at 05:28 and will set at 21:35 on the beach(es) of Dundalk. The outside temperature will be a high of 59°F t and a low of 56°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 21.1mph km/h (with gusts up to 31.1mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature15°C (59°F)14°C (57°F)13°C (56°F)14°C (56°F)15°C (58°F)15°C (59°F)15°C (60°F)15°C (59°F)
Perceived temperature14°C (57°F)12°C (54°F)11°C (52°F)11°C (52°F)12°C (54°F)15°C (59°F)15°C (60°F)15°C (59°F)
Precipitation0in0in0.1in0in0in0in0in0in
Humidity78%84%91%91%93%92%87%90%
Barometric pressure1014 hPa1011 hPa1009 hPa1007 hPa1006 hPa1006 hPa1006 hPa1006 hPa
Cloud cover67%100%100%100%100%100%94%100%
Heat index15°C (59°F)14°C (57°F)13°C (56°F)14°C (56°F)15°C (58°F)15°C (59°F)15°C (60°F)15°C (59°F)
Dew point11°C (52°F)11°C (53°F)12°C (53°F)12°C (54°F)13°C (56°F)14°C (57°F)13°C (56°F)14°C (56°F)
Wind
Speed19km/h (12mph)25km/h (15mph)29km/h (18mph)34km/h (21mph)33km/h (21mph)30km/h (19mph)26km/h (16mph)23km/h (15mph)
Gusts31km/h (19mph)38km/h (23mph)41km/h (25mph)49km/h (30mph)50km/h (31mph)47km/h (29mph)42km/h (26mph)36km/h (23mph)
Direction 259°
W
250°
WSW
254°
WSW
253°
WSW
262°
W
275°
W
277°
W
268°
W
Wind chill14°C (57°F)12°C (54°F)11°C (52°F)11°C (52°F)12°C (54°F)15°C (59°F)15°C (60°F)15°C (59°F)
Waves
Height0.3m (1.0ft)0.4m (1.2ft)0.4m (1.3ft)0.6m (1.9ft)0.8m (2.6ft)1.0m (3.2ft)0.9m (2.8ft)0.7m (2.2ft)
Direction 173°
S
201°
SSW
216°
SW
203°
SSW
188°
S
176°
S
156°
SSE
187°
S
Period3.3 sec.3.3 sec.3.3 sec.3.3 sec.3.3 sec.3.3 sec.5.0 sec.4.5 sec.
Significant height0.5m (1.6ft)0.6m (2ft)0.7m (2.3ft)1.0m (3.3ft)1.2m (3.9ft)1.2m (3.9ft)1.2m (3.9ft)1.1m (3.6ft)
Sea water temperature
Water temperature12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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