Sea weather in Llanelli in Wales All the beach weather in Llanelli

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

Discover the best moment to go to the beach in Llanelli in Wales this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Llanelli. 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 202659°F to 67°Fdiscouraged
Monday 20 July 202658°F to 67°Fdiscouraged
Tuesday 21 July 202658°F to 68°Fdiscouraged
Wednesday 22 July 202658°F to 67°Fdiscouraged
Thursday 23 July 202656°F to 65°Frecommended
Friday 24 July 202656°F to 67°Fdiscouraged
Saturday 25 July 202659°F to 63°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Llanelli

Sea weather on Sunday 19 July 2026

On Sunday 19 July 2026, the sun will rise at 05:22 and will set at 21:24 on the beach(es) of Llanelli. The outside temperature will be a high of 67°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 14.3mph km/h (with gusts up to 21.1mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature15°C (60°F)15°C (59°F)15°C (59°F)17°C (63°F)18°C (65°F)19°C (65°F)19°C (65°F)16°C (60°F)
Perceived temperature15°C (60°F)15°C (59°F)14°C (57°F)17°C (63°F)18°C (65°F)19°C (65°F)19°C (65°F)16°C (60°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity82%72%69%63%61%61%58%77%
Barometric pressure1022 hPa1024 hPa1025 hPa1026 hPa1026 hPa1026 hPa1025 hPa1026 hPa
Cloud cover33%27%31%26%25%52%8%22%
Heat index15°C (60°F)15°C (59°F)15°C (59°F)17°C (63°F)18°C (65°F)19°C (65°F)19°C (65°F)16°C (60°F)
Dew point12°C (54°F)10°C (50°F)9°C (49°F)10°C (50°F)10°C (51°F)11°C (52°F)10°C (50°F)12°C (53°F)
Wind
Speed12km/h (8mph)17km/h (11mph)17km/h (11mph)13km/h (8mph)5km/h (3mph)16km/h (10mph)23km/h (15mph)18km/h (11mph)
Gusts25km/h (16mph)30km/h (19mph)26km/h (16mph)16km/h (10mph)8km/h (5mph)27km/h (17mph)29km/h (18mph)34km/h (21mph)
Direction 30°
NNE
73°
ENE
97°
E
128°
SE
221°
SW
279°
W
346°
NNW
351°
N
Wind chill15°C (60°F)15°C (59°F)14°C (57°F)17°C (63°F)18°C (65°F)19°C (65°F)19°C (65°F)16°C (60°F)
Waves
Height0.3m (1.0ft)0.5m (1.5ft)0.6m (1.9ft)0.4m (1.4ft)0.3m (0.9ft)0.2m (0.7ft)0.4m (1.2ft)0.4m (1.3ft)
Direction 263°
W
102°
ESE
109°
ESE
112°
ESE
162°
SSE
256°
WSW
293°
WNW
311°
NW
Period5.8 sec.5.3 sec.7.5 sec.7.1 sec.3.5 sec.2.6 sec.7.2 sec.6.7 sec.
Significant height0.4m (1.3ft)0.7m (2.3ft)0.7m (2.3ft)0.4m (1.3ft)0.2m (0.7ft)0.5m (1.6ft)0.7m (2.3ft)0.6m (2ft)
Sea water temperature
Water temperature14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)

Sea weather on Monday 20 July 2026

On Monday 20 July 2026, the sun will rise at 05:23 and will set at 21:23 on the beach(es) of Llanelli. The outside temperature will be a high of 67°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 14.3mph km/h (with gusts up to 22.4mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature15°C (58°F)14°C (58°F)15°C (58°F)18°C (64°F)18°C (65°F)19°C (66°F)18°C (65°F)15°C (60°F)
Perceived temperature14°C (57°F)14°C (57°F)14°C (57°F)18°C (64°F)18°C (65°F)19°C (66°F)18°C (65°F)15°C (60°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity82%66%63%55%52%53%62%81%
Barometric pressure1026 hPa1027 hPa1028 hPa1028 hPa1028 hPa1028 hPa1027 hPa1028 hPa
Cloud cover27%14%28%8%9%7%6%9%
Heat index15°C (58°F)14°C (58°F)15°C (58°F)18°C (64°F)18°C (65°F)19°C (66°F)18°C (65°F)15°C (60°F)
Dew point12°C (53°F)8°C (47°F)8°C (46°F)8°C (47°F)8°C (47°F)9°C (48°F)11°C (51°F)12°C (54°F)
Wind
Speed15km/h (9mph)12km/h (7mph)10km/h (6mph)5km/h (3mph)5km/h (3mph)13km/h (8mph)23km/h (14mph)19km/h (12mph)
Gusts32km/h (20mph)23km/h (15mph)16km/h (10mph)7km/h (4mph)8km/h (5mph)24km/h (15mph)26km/h (16mph)36km/h (22mph)
Direction 22°
NNE
49°
NE
59°
ENE
105°
ESE
225°
SW
298°
WNW
347°
NNW
352°
N
Wind chill14°C (57°F)14°C (57°F)14°C (57°F)18°C (64°F)18°C (65°F)19°C (66°F)18°C (65°F)15°C (60°F)
Waves
Height0.3m (1.0ft)0.2m (0.6ft)0.2m (0.6ft)0.2m (0.6ft)0.2m (0.5ft)0.4m (1.2ft)0.5m (1.5ft)0.4m (1.2ft)
Direction 300°
WNW
246°
WSW
248°
WSW
248°
WSW
247°
WSW
295°
WNW
318°
NW
294°
WNW
Period6.2 sec.5.8 sec.9.1 sec.2.8 sec.8.8 sec.8.5 sec.8.4 sec.8.3 sec.
Significant height0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.1m (0.3ft)0.2m (0.7ft)0.8m (2.6ft)0.7m (2.3ft)0.6m (2ft)
Sea water temperature
Water temperature14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)

Sea weather on Tuesday 21 July 2026

On Tuesday 21 July 2026, the sun will rise at 05:25 and will set at 21:22 on the beach(es) of Llanelli. The outside temperature will be a high of 68°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 20.5mph). 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 (58°F)15°C (59°F)18°C (65°F)18°C (65°F)19°C (67°F)20°C (68°F)18°C (64°F)
Perceived temperature14°C (56°F)13°C (56°F)15°C (58°F)18°C (65°F)18°C (65°F)19°C (67°F)20°C (68°F)18°C (64°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity86%80%74%63%61%61%59%72%
Barometric pressure1028 hPa1028 hPa1029 hPa1030 hPa1030 hPa1029 hPa1028 hPa1028 hPa
Cloud cover7%8%7%4%4%11%10%14%
Heat index15°C (58°F)14°C (58°F)15°C (59°F)18°C (65°F)18°C (65°F)19°C (67°F)20°C (68°F)18°C (64°F)
Dew point12°C (54°F)11°C (51°F)10°C (51°F)11°C (52°F)11°C (51°F)12°C (53°F)12°C (53°F)13°C (55°F)
Wind
Speed14km/h (9mph)13km/h (8mph)9km/h (6mph)7km/h (4mph)9km/h (5mph)17km/h (11mph)22km/h (13mph)21km/h (13mph)
Gusts29km/h (18mph)26km/h (16mph)16km/h (10mph)10km/h (6mph)17km/h (10mph)33km/h (21mph)25km/h (16mph)21km/h (13mph)
Direction 15°
NNE
35°
NE
64°
ENE
124°
SE
188°
S
275°
W
338°
NNW
348°
NNW
Wind chill14°C (56°F)13°C (56°F)15°C (58°F)18°C (65°F)18°C (65°F)19°C (67°F)20°C (68°F)18°C (64°F)
Waves
Height0.3m (0.9ft)0.2m (0.7ft)0.3m (0.9ft)0.3m (1.1ft)0.3m (1.0ft)0.3m (0.9ft)0.3m (1.0ft)0.4m (1.3ft)
Direction 249°
WSW
252°
WSW
254°
WSW
109°
ESE
256°
WSW
256°
WSW
255°
WSW
285°
WNW
Period5.7 sec.7.9 sec.7.7 sec.4.4 sec.3.2 sec.2.8 sec.9.5 sec.9.6 sec.
Significant height0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.2m (0.7ft)0.2m (0.7ft)0.5m (1.6ft)0.6m (2ft)0.6m (2ft)
Sea water temperature
Water temperature14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)

Sea weather on Wednesday 22 July 2026

On Wednesday 22 July 2026, the sun will rise at 05:26 and will set at 21:21 on the beach(es) of Llanelli. The outside temperature will be a high of 67°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 21.1mph km/h (with gusts up to 26.7mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (61°F)15°C (58°F)15°C (58°F)16°C (61°F)18°C (65°F)19°C (66°F)17°C (63°F)16°C (61°F)
Perceived temperature16°C (61°F)14°C (57°F)13°C (56°F)16°C (61°F)18°C (65°F)19°C (66°F)17°C (63°F)16°C (61°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity84%86%80%70%61%64%68%79%
Barometric pressure1028 hPa1027 hPa1026 hPa1026 hPa1025 hPa1024 hPa1023 hPa1024 hPa
Cloud cover24%12%45%15%4%46%6%6%
Heat index16°C (61°F)15°C (58°F)15°C (58°F)16°C (61°F)18°C (65°F)19°C (66°F)17°C (63°F)16°C (61°F)
Dew point13°C (56°F)12°C (54°F)11°C (52°F)11°C (51°F)11°C (51°F)12°C (54°F)12°C (53°F)13°C (55°F)
Wind
Speed13km/h (8mph)14km/h (9mph)19km/h (12mph)26km/h (16mph)24km/h (15mph)29km/h (18mph)34km/h (21mph)30km/h (19mph)
Gusts28km/h (17mph)27km/h (17mph)30km/h (19mph)35km/h (22mph)39km/h (24mph)43km/h (26mph)40km/h (25mph)34km/h (21mph)
Direction 358°
N
358°
N
358°
N
353°
N
337°
NNW
343°
NNW
351°
N
354°
N
Wind chill16°C (61°F)14°C (57°F)13°C (56°F)16°C (61°F)18°C (65°F)19°C (66°F)17°C (63°F)16°C (61°F)
Waves
Height0.3m (1.0ft)0.3m (0.9ft)0.4m (1.2ft)0.4m (1.4ft)0.5m (1.6ft)0.6m (2.0ft)0.8m (2.6ft)0.9m (2.9ft)
Direction 254°
WSW
253°
WSW
300°
WNW
305°
NW
328°
NNW
324°
NW
326°
NW
336°
NNW
Period10.3 sec.10.2 sec.10.2 sec.10.1 sec.10.0 sec.9.8 sec.9.6 sec.9.5 sec.
Significant height0.5m (1.6ft)0.5m (1.6ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)0.9m (3ft)1.2m (3.9ft)1.3m (4.3ft)
Sea water temperature
Water temperature14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)

Sea weather on Thursday 23 July 2026

On Thursday 23 July 2026, the sun will rise at 05:27 and will set at 21:19 on the beach(es) of Llanelli. The outside temperature will be a high of 65°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 11.2mph km/h (with gusts up to 20.5mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature14°C (58°F)14°C (56°F)14°C (58°F)17°C (62°F)17°C (63°F)18°C (65°F)16°C (62°F)16°C (60°F)
Perceived temperature13°C (56°F)13°C (55°F)14°C (57°F)17°C (62°F)17°C (63°F)18°C (65°F)16°C (62°F)16°C (60°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity86%88%84%73%68%62%54%65%
Barometric pressure1024 hPa1024 hPa1024 hPa1025 hPa1025 hPa1023 hPa1022 hPa1023 hPa
Cloud cover4%26%86%61%6%3%0%0%
Heat index14°C (58°F)14°C (56°F)14°C (58°F)17°C (62°F)17°C (63°F)18°C (65°F)16°C (62°F)16°C (60°F)
Dew point12°C (54°F)12°C (53°F)12°C (53°F)12°C (53°F)11°C (52°F)11°C (51°F)7°C (45°F)9°C (48°F)
Wind
Speed18km/h (11mph)12km/h (7mph)8km/h (5mph)2km/h (1mph)10km/h (6mph)14km/h (9mph)16km/h (10mph)14km/h (9mph)
Gusts32km/h (20mph)22km/h (14mph)12km/h (8mph)3km/h (2mph)16km/h (10mph)26km/h (16mph)33km/h (21mph)28km/h (17mph)
Direction 360°
N
24°
NNE
16°
NNE
338°
NNW
247°
WSW
270°
W
328°
NNW
352°
N
Wind chill13°C (56°F)13°C (55°F)14°C (57°F)17°C (62°F)17°C (63°F)18°C (65°F)16°C (62°F)16°C (60°F)
Waves
Height0.6m (2.0ft)0.5m (1.6ft)0.3m (1.1ft)0.2m (0.7ft)0.1m (0.5ft)0.2m (0.5ft)0.2m (0.6ft)0.3m (1.0ft)
Direction 334°
NNW
308°
NW
302°
WNW
255°
WSW
255°
WSW
255°
WSW
255°
WSW
260°
W
Period9.5 sec.9.4 sec.6.5 sec.5.0 sec.8.9 sec.8.9 sec.8.8 sec.8.1 sec.
Significant height0.8m (2.6ft)0.7m (2.3ft)0.4m (1.3ft)0.1m (0.3ft)0.2m (0.7ft)0.4m (1.3ft)0.3m (1ft)0.4m (1.3ft)
Sea water temperature
Water temperature14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)

Sea weather on Friday 24 July 2026

On Friday 24 July 2026, the sun will rise at 05:29 and will set at 21:18 on the beach(es) of Llanelli. The outside temperature will be a high of 67°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 15.5mph km/h (with gusts up to 21.8mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature14°C (56°F)13°C (55°F)14°C (57°F)18°C (64°F)18°C (64°F)19°C (65°F)15°C (59°F)16°C (61°F)
Perceived temperature13°C (55°F)12°C (53°F)14°C (57°F)18°C (64°F)18°C (64°F)19°C (65°F)13°C (56°F)16°C (61°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%81%76%65%69%61%66%82%
Barometric pressure1023 hPa1022 hPa1021 hPa1020 hPa1019 hPa1018 hPa1017 hPa1017 hPa
Cloud cover2%2%4%3%4%5%0%100%
Heat index14°C (56°F)13°C (55°F)14°C (57°F)18°C (64°F)18°C (64°F)19°C (65°F)15°C (59°F)16°C (61°F)
Dew point10°C (49°F)10°C (49°F)10°C (50°F)11°C (52°F)12°C (53°F)11°C (51°F)9°C (47°F)13°C (55°F)
Wind
Speed13km/h (8mph)12km/h (7mph)9km/h (5mph)8km/h (5mph)21km/h (13mph)25km/h (15mph)21km/h (13mph)14km/h (9mph)
Gusts27km/h (17mph)23km/h (14mph)15km/h (9mph)11km/h (7mph)35km/h (22mph)31km/h (19mph)25km/h (16mph)27km/h (17mph)
Direction 348°
NNW
360°
N
14°
NNE
273°
W
244°
WSW
270°
W
272°
W
283°
WNW
Wind chill13°C (55°F)12°C (53°F)14°C (57°F)18°C (64°F)18°C (64°F)19°C (65°F)13°C (56°F)16°C (61°F)
Waves
Height0.2m (0.8ft)0.2m (0.5ft)0.1m (0.4ft)0.1m (0.4ft)0.1m (0.4ft)0.3m (1.1ft)0.6m (1.9ft)0.5m (1.7ft)
Direction 256°
WSW
257°
WSW
257°
WSW
257°
WSW
257°
WSW
267°
W
275°
W
274°
W
Period6.5 sec.7.3 sec.8.5 sec.8.5 sec.8.4 sec.8.4 sec.8.3 sec.8.3 sec.
Significant height0.3m (1ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.3m (1ft)0.7m (2.3ft)0.8m (2.6ft)0.6m (2ft)
Sea water temperature
Water temperature14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)

Sea weather on Saturday 25 July 2026

On Saturday 25 July 2026, the sun will rise at 05:30 and will set at 21:17 on the beach(es) of Llanelli. The outside temperature will be a high of 63°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 21.1mph km/h (with gusts up to 31.7mph). Wave height will be up to 6.6ft 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 (63°F)16°C (61°F)17°C (63°F)17°C (62°F)17°C (62°F)
Perceived temperature16°C (60°F)14°C (57°F)15°C (60°F)17°C (63°F)16°C (61°F)17°C (63°F)17°C (62°F)17°C (62°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity88%82%77%72%83%81%90%89%
Barometric pressure1016 hPa1015 hPa1014 hPa1013 hPa1012 hPa1010 hPa1009 hPa1010 hPa
Cloud cover11%31%5%52%100%100%100%100%
Heat index16°C (60°F)15°C (59°F)15°C (60°F)17°C (63°F)16°C (61°F)17°C (63°F)17°C (62°F)17°C (62°F)
Dew point14°C (56°F)12°C (53°F)11°C (52°F)12°C (53°F)13°C (55°F)14°C (57°F)15°C (59°F)15°C (59°F)
Wind
Speed13km/h (8mph)14km/h (9mph)18km/h (11mph)27km/h (17mph)31km/h (19mph)34km/h (21mph)34km/h (21mph)26km/h (16mph)
Gusts24km/h (15mph)25km/h (15mph)26km/h (16mph)36km/h (22mph)46km/h (29mph)51km/h (32mph)36km/h (22mph)39km/h (24mph)
Direction 301°
WNW
305°
NW
289°
WNW
268°
W
258°
WSW
261°
W
267°
W
282°
WNW
Wind chill16°C (60°F)14°C (57°F)15°C (60°F)17°C (63°F)16°C (61°F)17°C (63°F)17°C (62°F)17°C (62°F)
Waves
Height0.3m (1.0ft)0.2m (0.8ft)0.3m (0.9ft)0.3m (1.0ft)0.6m (2.1ft)1.1m (3.6ft)1.7m (5.5ft)2.0m (6.7ft)
Direction 273°
W
258°
WSW
262°
W
267°
W
259°
W
253°
WSW
252°
WSW
251°
WSW
Period8.2 sec.7.5 sec.4.2 sec.7.9 sec.3.9 sec.3.9 sec.3.9 sec.3.9 sec.
Significant height0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.5m (1.6ft)0.7m (2.3ft)1.0m (3.3ft)1.4m (4.6ft)1.5m (4.9ft)
Sea water temperature
Water temperature14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)14°C (57°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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