Sea weather in Snowdonia National Park in Wales All the beach weather in Snowdonia National Park

All the essential weather information for enjoying the beach in Snowdonia National Park in Wales, 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 Snowdonia National Park over the next 7 days?

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

Date Outside temp. Our opinion
Monday 20 July 202654°F to 59°Fdiscouraged
Tuesday 21 July 202652°F to 61°Fdiscouraged
Wednesday 22 July 202656°F to 61°Fdiscouraged
Thursday 23 July 202656°F to 59°Frecommended
Friday 24 July 202656°F to 63°Frecommended
Saturday 25 July 202658°F to 61°Fdiscouraged
Sunday 26 July 202659°F to 65°Frecommended

Sea Weather: Your daily and hourly sea weather in Snowdonia National Park

Sea weather on Monday 20 July 2026

On Monday 20 July 2026, the sun will rise at 05:15 and will set at 21:31 on the beach(es) of Snowdonia National Park. The outside temperature will be a high of 59°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 13.1mph km/h (with gusts up to 17.4mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (56°F)13°C (55°F)13°C (56°F)15°C (59°F)15°C (60°F)15°C (59°F)14°C (57°F)14°C (57°F)
Perceived temperature13°C (55°F)11°C (53°F)12°C (54°F)14°C (57°F)15°C (60°F)14°C (57°F)13°C (56°F)14°C (56°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity86%87%91%83%79%78%79%88%
Barometric pressure1028 hPa1028 hPa1029 hPa1029 hPa1029 hPa1029 hPa1029 hPa1030 hPa
Cloud cover31%29%54%94%39%7%4%4%
Heat index13°C (56°F)13°C (55°F)13°C (56°F)15°C (59°F)15°C (60°F)15°C (59°F)14°C (57°F)14°C (57°F)
Dew point11°C (52°F)10°C (51°F)12°C (53°F)12°C (54°F)12°C (53°F)11°C (52°F)10°C (51°F)12°C (53°F)
Wind
Speed10km/h (6mph)12km/h (8mph)11km/h (7mph)16km/h (10mph)21km/h (13mph)17km/h (11mph)10km/h (6mph)7km/h (4mph)
Gusts19km/h (12mph)21km/h (13mph)16km/h (10mph)21km/h (13mph)28km/h (17mph)28km/h (18mph)20km/h (12mph)13km/h (8mph)
Direction 324°
NW
332°
NNW
331°
NNW
316°
NW
321°
NW
329°
NNW
340°
NNW
337°
NNW
Wind chill13°C (55°F)11°C (53°F)12°C (54°F)14°C (57°F)15°C (60°F)14°C (57°F)13°C (56°F)14°C (56°F)
Waves
Height0.3m (1.1ft)0.4m (1.4ft)0.5m (1.5ft)0.6m (1.9ft)0.6m (2.1ft)0.5m (1.7ft)0.4m (1.3ft)0.3m (1.1ft)
Direction 342°
NNW
335°
NNW
334°
NNW
335°
NNW
329°
NNW
326°
NW
325°
NW
326°
NW
Period3.1 sec.3.1 sec.4.7 sec.4.7 sec.4.7 sec.4.7 sec.4.1 sec.4.5 sec.
Significant height0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.8m (2.6ft)0.8m (2.6ft)0.7m (2.3ft)0.6m (2ft)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 05:17 and will set at 21:29 on the beach(es) of Snowdonia National Park. 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 13.7mph km/h (with gusts up to 19.9mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (56°F)13°C (55°F)14°C (57°F)16°C (60°F)15°C (59°F)13°C (56°F)12°C (54°F)13°C (56°F)
Perceived temperature13°C (56°F)13°C (55°F)14°C (58°F)16°C (60°F)15°C (59°F)12°C (53°F)10°C (50°F)12°C (53°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity92%92%90%83%79%73%76%86%
Barometric pressure1030 hPa1030 hPa1030 hPa1031 hPa1031 hPa1031 hPa1031 hPa1031 hPa
Cloud cover12%16%22%16%4%0%0%0%
Heat index13°C (56°F)13°C (55°F)14°C (57°F)16°C (60°F)15°C (59°F)13°C (56°F)12°C (54°F)13°C (56°F)
Dew point12°C (54°F)12°C (53°F)12°C (54°F)13°C (55°F)12°C (53°F)9°C (48°F)8°C (46°F)11°C (51°F)
Wind
Speed6km/h (4mph)3km/h (2mph)4km/h (2mph)14km/h (9mph)21km/h (13mph)22km/h (14mph)17km/h (11mph)17km/h (11mph)
Gusts10km/h (6mph)5km/h (3mph)6km/h (4mph)19km/h (12mph)32km/h (20mph)27km/h (16mph)20km/h (12mph)30km/h (19mph)
Direction 348°
NNW
323°
NW
311°
NW
326°
NW
325°
NW
319°
NW
321°
NW
333°
NNW
Wind chill13°C (56°F)13°C (55°F)14°C (58°F)16°C (60°F)15°C (59°F)12°C (53°F)10°C (50°F)12°C (53°F)
Waves
Height0.4m (1.4ft)0.4m (1.5ft)0.4m (1.2ft)0.3m (1.0ft)0.3m (1.1ft)0.4m (1.2ft)0.4m (1.2ft)0.6m (2.1ft)
Direction 323°
NW
324°
NW
327°
NNW
327°
NNW
323°
NW
324°
NW
327°
NNW
335°
NNW
Period4.5 sec.4.4 sec.3.9 sec.4.2 sec.4.5 sec.4.5 sec.4.5 sec.4.5 sec.
Significant height0.6m (2ft)0.6m (2ft)0.5m (1.6ft)0.4m (1.3ft)0.7m (2.3ft)0.8m (2.6ft)0.8m (2.6ft)0.9m (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 05:18 and will set at 21:28 on the beach(es) of Snowdonia National Park. The outside temperature will be a high of 61°F t and a low of 56°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 19.9mph). Wave height will be up to 3.3ft 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)14°C (58°F)15°C (59°F)15°C (59°F)15°C (60°F)14°C (58°F)
Perceived temperature11°C (51°F)11°C (51°F)11°C (53°F)13°C (56°F)15°C (58°F)15°C (59°F)15°C (60°F)13°C (56°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity90%88%86%82%77%76%78%90%
Barometric pressure1030 hPa1029 hPa1028 hPa1028 hPa1028 hPa1027 hPa1026 hPa1026 hPa
Cloud cover23%22%18%15%6%5%8%4%
Heat index13°C (55°F)13°C (55°F)13°C (56°F)14°C (58°F)15°C (59°F)15°C (59°F)15°C (60°F)14°C (58°F)
Dew point11°C (52°F)11°C (51°F)11°C (52°F)11°C (52°F)11°C (52°F)11°C (52°F)12°C (53°F)13°C (55°F)
Wind
Speed18km/h (11mph)21km/h (13mph)21km/h (13mph)16km/h (10mph)9km/h (6mph)10km/h (6mph)13km/h (8mph)15km/h (10mph)
Gusts29km/h (18mph)32km/h (20mph)29km/h (18mph)21km/h (13mph)14km/h (9mph)17km/h (11mph)27km/h (17mph)29km/h (18mph)
Direction 331°
NNW
332°
NNW
328°
NNW
333°
NNW
353°
N
345°
NNW
331°
NNW
332°
NNW
Wind chill11°C (51°F)11°C (51°F)11°C (53°F)13°C (56°F)15°C (58°F)15°C (59°F)15°C (60°F)13°C (56°F)
Waves
Height0.9m (3.0ft)1.0m (3.3ft)1.0m (3.4ft)1.0m (3.3ft)0.9m (2.9ft)0.9m (3.0ft)0.9m (3.0ft)1.0m (3.2ft)
Direction 339°
NNW
338°
NNW
337°
NNW
330°
NNW
326°
NW
326°
NW
333°
NNW
343°
NNW
Period4.8 sec.5.0 sec.5.0 sec.5.0 sec.5.0 sec.5.0 sec.5.0 sec.5.0 sec.
Significant height1.1m (3.6ft)1.2m (3.9ft)1.0m (3.3ft)0.8m (2.6ft)0.8m (2.6ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)
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 05:20 and will set at 21:26 on the beach(es) of Snowdonia National Park. The outside temperature will be a high of 59°F t and a low of 56°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 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature14°C (56°F)13°C (56°F)14°C (57°F)15°C (59°F)15°C (58°F)15°C (58°F)14°C (56°F)14°C (57°F)
Perceived temperature12°C (54°F)12°C (54°F)13°C (55°F)14°C (56°F)13°C (56°F)14°C (57°F)13°C (56°F)15°C (59°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity93%95%85%78%77%76%78%86%
Barometric pressure1026 hPa1026 hPa1026 hPa1026 hPa1026 hPa1025 hPa1024 hPa1024 hPa
Cloud cover34%71%18%89%2%3%3%4%
Heat index14°C (56°F)13°C (56°F)14°C (57°F)15°C (59°F)15°C (58°F)15°C (58°F)14°C (56°F)14°C (57°F)
Dew point12°C (54°F)13°C (55°F)11°C (53°F)11°C (52°F)10°C (51°F)11°C (51°F)10°C (49°F)12°C (53°F)
Wind
Speed13km/h (8mph)13km/h (8mph)15km/h (10mph)18km/h (11mph)19km/h (12mph)12km/h (8mph)8km/h (5mph)3km/h (2mph)
Gusts23km/h (14mph)21km/h (13mph)22km/h (13mph)23km/h (15mph)31km/h (19mph)22km/h (14mph)17km/h (10mph)7km/h (4mph)
Direction 329°
NNW
330°
NNW
333°
NNW
316°
NW
317°
NW
338°
NNW
341°
NNW
334°
NNW
Wind chill12°C (54°F)12°C (54°F)13°C (55°F)14°C (56°F)13°C (56°F)14°C (57°F)13°C (56°F)15°C (59°F)
Waves
Height0.9m (3.1ft)0.8m (2.5ft)0.7m (2.4ft)0.7m (2.2ft)0.5m (1.7ft)0.5m (1.6ft)0.4m (1.3ft)0.3m (1.0ft)
Direction 341°
NNW
341°
NNW
337°
NNW
331°
NNW
324°
NW
321°
NW
323°
NW
323°
NW
Period5.0 sec.4.8 sec.4.5 sec.4.2 sec.4.2 sec.4.2 sec.4.2 sec.3.8 sec.
Significant height0.9m (3ft)1.1m (3.6ft)1.0m (3.3ft)0.6m (2ft)0.7m (2.3ft)0.8m (2.6ft)0.7m (2.3ft)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 Friday 24 July 2026

On Friday 24 July 2026, the sun will rise at 05:21 and will set at 21:25 on the beach(es) of Snowdonia National Park. The outside temperature will be a high of 63°F t and a low of 56°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 1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature14°C (58°F)13°C (56°F)14°C (58°F)16°C (62°F)17°C (62°F)17°C (62°F)14°C (58°F)15°C (59°F)
Perceived temperature14°C (58°F)13°C (55°F)14°C (57°F)16°C (62°F)17°C (62°F)17°C (62°F)14°C (57°F)14°C (58°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity84%85%82%75%76%67%64%81%
Barometric pressure1023 hPa1023 hPa1022 hPa1022 hPa1020 hPa1019 hPa1018 hPa1017 hPa
Cloud cover3%0%3%23%6%4%0%71%
Heat index14°C (58°F)13°C (56°F)14°C (58°F)16°C (62°F)17°C (62°F)17°C (62°F)14°C (58°F)15°C (59°F)
Dew point12°C (53°F)11°C (52°F)11°C (52°F)12°C (54°F)12°C (54°F)10°C (51°F)8°C (46°F)12°C (53°F)
Wind
Speed6km/h (4mph)8km/h (5mph)7km/h (4mph)10km/h (6mph)14km/h (9mph)15km/h (9mph)11km/h (7mph)14km/h (9mph)
Gusts13km/h (8mph)17km/h (11mph)11km/h (7mph)13km/h (8mph)22km/h (14mph)29km/h (18mph)23km/h (15mph)29km/h (18mph)
Direction 312°
NW
320°
NW
327°
NNW
311°
NW
300°
WNW
293°
WNW
279°
W
256°
WSW
Wind chill14°C (58°F)13°C (55°F)14°C (57°F)16°C (62°F)17°C (62°F)17°C (62°F)14°C (57°F)14°C (58°F)
Waves
Height0.3m (1.0ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (0.9ft)0.2m (0.7ft)0.2m (0.6ft)0.1m (0.5ft)0.1m (0.4ft)
Direction 324°
NW
325°
NW
326°
NNW
330°
NNW
336°
NNW
339°
NNW
339°
NNW
333°
NNW
Period3.6 sec.4.0 sec.4.2 sec.3.7 sec.3.7 sec.3.0 sec.2.5 sec.2.3 sec.
Significant height0.4m (1.3ft)0.3m (1ft)0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)0.2m (0.7ft)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 Saturday 25 July 2026

On Saturday 25 July 2026, the sun will rise at 05:23 and will set at 21:23 on the beach(es) of Snowdonia National Park. The outside temperature will be a high of 61°F t and a low of 58°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 13.7mph 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 temperature15°C (58°F)14°C (57°F)14°C (57°F)16°C (61°F)15°C (60°F)16°C (61°F)16°C (60°F)15°C (60°F)
Perceived temperature14°C (57°F)13°C (56°F)13°C (56°F)16°C (61°F)15°C (60°F)16°C (61°F)16°C (60°F)15°C (60°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity90%90%89%74%74%74%83%87%
Barometric pressure1016 hPa1015 hPa1015 hPa1015 hPa1015 hPa1014 hPa1014 hPa1014 hPa
Cloud cover5%43%44%50%100%100%100%100%
Heat index15°C (58°F)14°C (57°F)14°C (57°F)16°C (61°F)15°C (60°F)16°C (61°F)16°C (60°F)15°C (60°F)
Dew point13°C (55°F)12°C (54°F)12°C (54°F)11°C (52°F)11°C (52°F)11°C (52°F)13°C (55°F)13°C (56°F)
Wind
Speed14km/h (9mph)10km/h (6mph)13km/h (8mph)17km/h (11mph)22km/h (13mph)20km/h (12mph)15km/h (9mph)13km/h (8mph)
Gusts28km/h (17mph)20km/h (12mph)21km/h (13mph)23km/h (14mph)31km/h (20mph)31km/h (19mph)24km/h (15mph)23km/h (14mph)
Direction 256°
WSW
252°
WSW
260°
W
274°
W
280°
W
258°
WSW
277°
W
246°
WSW
Wind chill14°C (57°F)13°C (56°F)13°C (56°F)16°C (61°F)15°C (60°F)16°C (61°F)16°C (60°F)15°C (60°F)
Waves
Height0.1m (0.3ft)0.1m (0.3ft)0.1m (0.4ft)0.1m (0.5ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.6ft)0.4m (1.5ft)
Direction 306°
NW
290°
WNW
10°
N

N
298°
WNW
292°
WNW
284°
WNW
245°
WSW
Period3.0 sec.3.4 sec.3.5 sec.3.2 sec.2.7 sec.2.6 sec.2.5 sec.2.5 sec.
Significant height0.1m (0.3ft)0.1m (0.3ft)0.2m (0.7ft)0.3m (1ft)0.5m (1.6ft)0.3m (1ft)0.4m (1.3ft)1.0m (3.3ft)
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 Sunday 26 July 2026

On Sunday 26 July 2026, the sun will rise at 05:24 and will set at 21:22 on the beach(es) of Snowdonia National Park. The outside temperature will be a high of 65°F t and a low of 59°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 21.1mph). Wave height will be up to 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (60°F)15°C (59°F)15°C (60°F)17°C (62°F)17°C (63°F)18°C (64°F)17°C (63°F)16°C (61°F)
Perceived temperature16°C (60°F)14°C (57°F)15°C (60°F)17°C (62°F)17°C (63°F)18°C (64°F)17°C (63°F)16°C (61°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity88%95%94%86%78%71%68%90%
Barometric pressure1014 hPa1014 hPa1014 hPa1014 hPa1014 hPa1014 hPa1014 hPa1014 hPa
Cloud cover89%69%95%46%10%3%3%3%
Heat index16°C (60°F)15°C (59°F)15°C (60°F)17°C (62°F)17°C (63°F)18°C (64°F)17°C (63°F)16°C (61°F)
Dew point13°C (56°F)14°C (57°F)14°C (58°F)14°C (58°F)13°C (56°F)12°C (54°F)11°C (52°F)14°C (58°F)
Wind
Speed13km/h (8mph)15km/h (9mph)16km/h (10mph)19km/h (12mph)19km/h (12mph)17km/h (10mph)18km/h (11mph)15km/h (10mph)
Gusts23km/h (14mph)26km/h (16mph)26km/h (16mph)26km/h (16mph)32km/h (20mph)34km/h (21mph)24km/h (15mph)33km/h (20mph)
Direction 241°
WSW
252°
WSW
251°
WSW
269°
W
274°
W
273°
W
250°
WSW
227°
SW
Wind chill16°C (60°F)14°C (57°F)15°C (60°F)17°C (62°F)17°C (63°F)18°C (64°F)17°C (63°F)16°C (61°F)
Waves
Height0.8m (2.6ft)0.8m (2.5ft)0.6m (1.8ft)0.6m (2.1ft)0.6m (2.0ft)0.6m (2.1ft)0.6m (1.9ft)0.8m (2.7ft)
Direction 259°
W
256°
WSW
261°
W
278°
W
280°
W
284°
WNW
284°
WNW
330°
NNW
Period2.5 sec.2.5 sec.2.5 sec.2.5 sec.2.5 sec.6.7 sec.5.9 sec.5.4 sec.
Significant height1.2m (3.9ft)1.0m (3.3ft)0.8m (2.6ft)0.9m (3ft)0.9m (3ft)0.7m (2.3ft)0.6m (2ft)0.8m (2.6ft)
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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