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 16 March 202538°F to 47°Frecommended
Monday 17 March 202540°F to 47°Fdiscouraged
Tuesday 18 March 202540°F to 49°Fdiscouraged
Wednesday 19 March 202541°F to 50°Fdiscouraged
Thursday 20 March 202545°F to 52°Fdiscouraged
Friday 21 March 202549°F to 52°Fdiscouraged
Saturday 22 March 202549°F to 52°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Llanelli

Sea weather on Sunday 16 March 2025

On Sunday 16 March 2025, the sun will rise at 06:28 and will set at 18:23 on the beach(es) of Llanelli. The outside temperature will be a high of 47°F t and a low of 38°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 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature5°C (40°F)5°C (40°F)3°C (37°F)5°C (41°F)7°C (44°F)8°C (47°F)7°C (45°F)6°C (43°F)
Perceived temperature2°C (35°F)2°C (36°F)0°C (32°F)2°C (36°F)4°C (40°F)7°C (44°F)5°C (41°F)3°C (38°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity71%70%78%71%57%58%68%74%
Barometric pressure1025 hPa1025 hPa1026 hPa1027 hPa1027 hPa1026 hPa1026 hPa1028 hPa
Cloud cover71%9%0%0%16%78%83%100%
Heat index5°C (40°F)5°C (40°F)3°C (37°F)5°C (41°F)7°C (44°F)8°C (47°F)7°C (45°F)6°C (43°F)
Dew point-0°C (32°F)-1°C (31°F)-0°C (31°F)0°C (32°F)-1°C (30°F)0°C (33°F)2°C (35°F)2°C (35°F)
Wind
Speed14km/h (9mph)8km/h (5mph)11km/h (7mph)13km/h (8mph)12km/h (7mph)9km/h (6mph)10km/h (6mph)16km/h (10mph)
Gusts25km/h (16mph)14km/h (9mph)19km/h (12mph)17km/h (10mph)17km/h (11mph)13km/h (8mph)18km/h (11mph)28km/h (17mph)
Direction 35°
NE
63°
ENE
48°
NE
60°
ENE
79°
E
89°
E
61°
ENE
67°
ENE
Wind chill2°C (35°F)2°C (36°F)0°C (32°F)2°C (36°F)4°C (40°F)7°C (44°F)5°C (41°F)3°C (38°F)
Waves
Height0.6m (2.1ft)0.6m (1.8ft)0.5m (1.8ft)0.5m (1.7ft)0.5m (1.6ft)0.4m (1.4ft)0.4m (1.4ft)0.5m (1.8ft)
Direction 250°
WSW
251°
WSW
252°
WSW
252°
WSW
253°
WSW
254°
WSW
254°
WSW
254°
WSW
Period12.0 sec.11.7 sec.11.1 sec.10.9 sec.10.7 sec.10.1 sec.10.0 sec.9.8 sec.
Significant height0.9m (3ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.7m (2.3ft)0.6m (2ft)0.7m (2.3ft)0.8m (2.6ft)
Sea water temperature
Water temperature8°C (47°F)8°C (47°F)8°C (47°F)8°C (47°F)8°C (47°F)8°C (47°F)8°C (47°F)8°C (47°F)

Sea weather on Monday 17 March 2025

On Monday 17 March 2025, the sun will rise at 06:26 and will set at 18:25 on the beach(es) of Llanelli. The outside temperature will be a high of 47°F t and a low of 40°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 18.6mph km/h (with gusts up to 28.6mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature7°C (44°F)5°C (41°F)4°C (40°F)5°C (41°F)6°C (43°F)8°C (46°F)6°C (42°F)6°C (43°F)
Perceived temperature4°C (39°F)1°C (34°F)-0°C (31°F)-0°C (32°F)2°C (36°F)4°C (39°F)1°C (34°F)1°C (34°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity76%85%87%82%68%69%72%73%
Barometric pressure1028 hPa1028 hPa1028 hPa1029 hPa1028 hPa1026 hPa1026 hPa1025 hPa
Cloud cover78%24%43%43%33%78%30%39%
Heat index7°C (44°F)5°C (41°F)4°C (40°F)5°C (41°F)6°C (43°F)8°C (46°F)6°C (42°F)6°C (43°F)
Dew point3°C (37°F)3°C (37°F)2°C (36°F)2°C (36°F)1°C (33°F)2°C (36°F)1°C (34°F)2°C (35°F)
Wind
Speed12km/h (8mph)21km/h (13mph)24km/h (15mph)29km/h (18mph)27km/h (17mph)26km/h (16mph)29km/h (18mph)30km/h (19mph)
Gusts19km/h (12mph)33km/h (21mph)38km/h (23mph)38km/h (24mph)36km/h (23mph)37km/h (23mph)46km/h (29mph)46km/h (29mph)
Direction 47°
NE
70°
ENE
78°
ENE
84°
E
90°
E
94°
E
83°
E
90°
E
Wind chill4°C (39°F)1°C (34°F)-0°C (31°F)-0°C (32°F)2°C (36°F)4°C (39°F)1°C (34°F)1°C (34°F)
Waves
Height0.5m (1.7ft)0.6m (2.0ft)0.6m (1.9ft)0.6m (2.1ft)0.8m (2.6ft)0.7m (2.4ft)0.6m (2.1ft)0.9m (2.9ft)
Direction 255°
WSW
254°
WSW
88°
E
93°
E
93°
E
92°
E
244°
WSW
242°
WSW
Period9.6 sec.9.2 sec.9.1 sec.9.0 sec.9.0 sec.18.2 sec.17.9 sec.17.6 sec.
Significant height0.8m (2.6ft)1.0m (3.3ft)0.9m (3ft)1.0m (3.3ft)1.1m (3.6ft)0.8m (2.6ft)0.7m (2.3ft)1.2m (3.9ft)
Sea water temperature
Water temperature8°C (47°F)8°C (47°F)8°C (47°F)8°C (47°F)8°C (47°F)8°C (47°F)8°C (47°F)8°C (47°F)

Sea weather on Tuesday 18 March 2025

On Tuesday 18 March 2025, the sun will rise at 06:24 and will set at 18:27 on the beach(es) of Llanelli. The outside temperature will be a high of 49°F t and a low of 40°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 29.8mph). Wave height will be up to 3.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature4°C (40°F)4°C (39°F)4°C (38°F)6°C (42°F)7°C (45°F)9°C (48°F)6°C (42°F)6°C (42°F)
Perceived temperature-1°C (30°F)-1°C (30°F)-2°C (29°F)1°C (33°F)3°C (37°F)5°C (41°F)1°C (34°F)1°C (34°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%85%84%78%70%65%71%73%
Barometric pressure1024 hPa1023 hPa1022 hPa1022 hPa1021 hPa1020 hPa1020 hPa1020 hPa
Cloud cover6%2%0%0%10%17%3%4%
Heat index4°C (40°F)4°C (39°F)4°C (38°F)6°C (42°F)7°C (45°F)9°C (48°F)6°C (42°F)6°C (42°F)
Dew point2°C (35°F)1°C (34°F)1°C (34°F)2°C (36°F)2°C (36°F)3°C (37°F)1°C (33°F)1°C (34°F)
Wind
Speed30km/h (18mph)26km/h (16mph)28km/h (17mph)33km/h (20mph)32km/h (20mph)29km/h (18mph)28km/h (17mph)29km/h (18mph)
Gusts43km/h (27mph)39km/h (24mph)43km/h (27mph)43km/h (27mph)48km/h (30mph)30km/h (18mph)32km/h (20mph)34km/h (21mph)
Direction 94°
E
98°
E
94°
E
103°
ESE
111°
ESE
110°
ESE
120°
ESE
111°
ESE
Wind chill-1°C (30°F)-1°C (30°F)-2°C (29°F)1°C (33°F)3°C (37°F)5°C (41°F)1°C (34°F)1°C (34°F)
Waves
Height1.1m (3.7ft)1.2m (3.8ft)1.1m (3.8ft)1.2m (3.9ft)1.1m (3.7ft)1.0m (3.3ft)0.9m (3.1ft)0.9m (3.1ft)
Direction 244°
WSW
242°
WSW
244°
WSW
247°
WSW
245°
WSW
249°
WSW
246°
WSW
242°
WSW
Period16.5 sec.15.4 sec.14.6 sec.13.6 sec.13.2 sec.12.4 sec.12.1 sec.11.7 sec.
Significant height1.4m (4.6ft)1.5m (4.9ft)1.5m (4.9ft)1.6m (5.2ft)1.4m (4.6ft)1.3m (4.3ft)1.2m (3.9ft)1.1m (3.6ft)
Sea water temperature
Water temperature8°C (47°F)8°C (47°F)8°C (47°F)8°C (47°F)8°C (47°F)8°C (47°F)8°C (47°F)8°C (47°F)

Sea weather on Wednesday 19 March 2025

On Wednesday 19 March 2025, the sun will rise at 06:21 and will set at 18:29 on the beach(es) of Llanelli. 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 16.8mph km/h (with gusts up to 25.5mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature5°C (42°F)5°C (41°F)5°C (40°F)7°C (45°F)9°C (49°F)10°C (50°F)9°C (48°F)8°C (46°F)
Perceived temperature1°C (34°F)1°C (33°F)0°C (33°F)4°C (38°F)6°C (43°F)8°C (46°F)7°C (44°F)5°C (41°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity72%77%80%75%75%73%83%89%
Barometric pressure1020 hPa1019 hPa1019 hPa1020 hPa1019 hPa1018 hPa1019 hPa1019 hPa
Cloud cover45%13%60%8%32%8%31%27%
Heat index5°C (42°F)5°C (41°F)5°C (40°F)7°C (45°F)9°C (49°F)10°C (50°F)9°C (48°F)8°C (46°F)
Dew point1°C (34°F)1°C (34°F)1°C (35°F)3°C (38°F)5°C (41°F)6°C (42°F)6°C (43°F)6°C (43°F)
Wind
Speed24km/h (15mph)22km/h (13mph)22km/h (13mph)26km/h (16mph)27km/h (17mph)21km/h (13mph)15km/h (10mph)17km/h (11mph)
Gusts40km/h (25mph)38km/h (23mph)39km/h (25mph)37km/h (23mph)41km/h (25mph)22km/h (14mph)33km/h (20mph)34km/h (21mph)
Direction 101°
ESE
94°
E
91°
E
103°
ESE
115°
ESE
106°
ESE
116°
ESE
100°
E
Wind chill1°C (34°F)1°C (33°F)0°C (33°F)4°C (38°F)6°C (43°F)8°C (46°F)7°C (44°F)5°C (41°F)
Waves
Height1.0m (3.2ft)0.9m (3.1ft)1.0m (3.1ft)1.0m (3.2ft)0.9m (3.1ft)0.9m (3.0ft)0.9m (2.8ft)0.8m (2.8ft)
Direction 250°
WSW
249°
WSW
251°
WSW
253°
WSW
255°
WSW
256°
WSW
239°
WSW
236°
SW
Period12.9 sec.12.4 sec.12.4 sec.12.1 sec.12.0 sec.11.8 sec.11.6 sec.9.7 sec.
Significant height1.3m (4.3ft)1.3m (4.3ft)1.4m (4.6ft)1.3m (4.3ft)1.2m (3.9ft)1.1m (3.6ft)1.0m (3.3ft)1.0m (3.3ft)
Sea water temperature
Water temperature6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)

Sea weather on Thursday 20 March 2025

On Thursday 20 March 2025, the sun will rise at 06:19 and will set at 18:30 on the beach(es) of Llanelli. 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 15.5mph km/h (with gusts up to 26.1mph). Wave height will be up to 3.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature7°C (45°F)7°C (45°F)7°C (44°F)9°C (49°F)11°C (51°F)11°C (53°F)11°C (51°F)9°C (49°F)
Perceived temperature4°C (40°F)4°C (39°F)4°C (39°F)7°C (44°F)8°C (47°F)9°C (48°F)8°C (46°F)6°C (43°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity88%85%86%80%75%77%81%86%
Barometric pressure1019 hPa1018 hPa1017 hPa1017 hPa1015 hPa1013 hPa1012 hPa1011 hPa
Cloud cover31%29%50%39%48%77%75%23%
Heat index7°C (45°F)7°C (45°F)7°C (44°F)9°C (49°F)11°C (51°F)11°C (53°F)11°C (51°F)9°C (49°F)
Dew point6°C (42°F)5°C (41°F)5°C (40°F)6°C (43°F)7°C (44°F)7°C (45°F)7°C (45°F)7°C (45°F)
Wind
Speed17km/h (11mph)15km/h (10mph)16km/h (10mph)18km/h (11mph)23km/h (14mph)25km/h (15mph)23km/h (15mph)24km/h (15mph)
Gusts31km/h (20mph)30km/h (19mph)31km/h (19mph)29km/h (18mph)37km/h (23mph)42km/h (26mph)27km/h (17mph)31km/h (19mph)
Direction 88°
E
83°
E
80°
E
95°
E
104°
ESE
98°
E
82°
E
78°
ENE
Wind chill4°C (40°F)4°C (39°F)4°C (39°F)7°C (44°F)8°C (47°F)9°C (48°F)8°C (46°F)6°C (43°F)
Waves
Height0.9m (2.9ft)1.0m (3.2ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.2ft)1.1m (3.5ft)1.2m (3.9ft)
Direction 230°
SW
225°
SW
233°
SW
227°
SW
226°
SW
225°
SW
99°
E
110°
ESE
Period9.7 sec.9.3 sec.9.1 sec.10.1 sec.9.9 sec.9.7 sec.9.7 sec.11.8 sec.
Significant height1.1m (3.6ft)1.3m (4.3ft)1.3m (4.3ft)1.4m (4.6ft)1.3m (4.3ft)1.1m (3.6ft)1.4m (4.6ft)1.4m (4.6ft)
Sea water temperature
Water temperature6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)

Sea weather on Friday 21 March 2025

On Friday 21 March 2025, the sun will rise at 06:17 and will set at 18:32 on the beach(es) of Llanelli. 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 19.9mph km/h (with gusts up to 31.1mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (48°F)9°C (47°F)9°C (47°F)10°C (50°F)11°C (52°F)11°C (51°F)10°C (49°F)10°C (49°F)
Perceived temperature6°C (43°F)5°C (42°F)5°C (41°F)7°C (44°F)8°C (46°F)7°C (45°F)6°C (43°F)6°C (43°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity84%84%82%83%82%87%90%93%
Barometric pressure1009 hPa1007 hPa1005 hPa1004 hPa1004 hPa1002 hPa1002 hPa1002 hPa
Cloud cover100%46%21%26%90%100%100%100%
Heat index9°C (48°F)9°C (47°F)9°C (47°F)10°C (50°F)11°C (52°F)11°C (51°F)10°C (49°F)10°C (49°F)
Dew point7°C (44°F)6°C (43°F)6°C (42°F)7°C (45°F)8°C (47°F)8°C (47°F)8°C (47°F)9°C (47°F)
Wind
Speed23km/h (14mph)22km/h (14mph)24km/h (15mph)29km/h (18mph)32km/h (20mph)29km/h (18mph)28km/h (18mph)28km/h (17mph)
Gusts41km/h (25mph)39km/h (24mph)41km/h (25mph)43km/h (27mph)50km/h (31mph)46km/h (29mph)32km/h (20mph)45km/h (28mph)
Direction 74°
ENE
67°
ENE
67°
ENE
82°
E
90°
E
89°
E
79°
E
113°
ESE
Wind chill6°C (43°F)5°C (42°F)5°C (41°F)7°C (44°F)8°C (46°F)7°C (45°F)6°C (43°F)6°C (43°F)
Waves
Height0.9m (3.0ft)0.8m (2.7ft)0.7m (2.5ft)0.8m (2.5ft)0.8m (2.8ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (2.9ft)
Direction 223°
SW
223°
SW
223°
SW
225°
SW
224°
SW
223°
SW
225°
SW
225°
SW
Period10.8 sec.10.2 sec.9.8 sec.9.4 sec.11.7 sec.10.8 sec.10.2 sec.11.9 sec.
Significant height1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)1.0m (3.3ft)1.3m (4.3ft)1.3m (4.3ft)1.1m (3.6ft)1.3m (4.3ft)
Sea water temperature
Water temperature6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)

Sea weather on Saturday 22 March 2025

On Saturday 22 March 2025, the sun will rise at 06:15 and will set at 18:34 on the beach(es) of Llanelli. 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 16.2mph km/h (with gusts up to 26.7mph). Wave height will be up to 4.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (50°F)9°C (49°F)9°C (47°F)9°C (49°F)11°C (51°F)11°C (52°F)10°C (49°F)9°C (49°F)
Perceived temperature7°C (44°F)6°C (43°F)5°C (41°F)6°C (43°F)8°C (46°F)9°C (48°F)7°C (45°F)7°C (44°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity92%90%91%87%80%81%91%94%
Barometric pressure1003 hPa1004 hPa1004 hPa1003 hPa1002 hPa1000 hPa1000 hPa999 hPa
Cloud cover100%92%100%60%37%72%70%100%
Heat index10°C (50°F)9°C (49°F)9°C (47°F)9°C (49°F)11°C (51°F)11°C (52°F)10°C (49°F)9°C (49°F)
Dew point9°C (47°F)8°C (46°F)7°C (45°F)7°C (45°F)8°C (46°F)8°C (47°F)8°C (47°F)8°C (47°F)
Wind
Speed26km/h (16mph)26km/h (16mph)25km/h (16mph)25km/h (16mph)24km/h (15mph)22km/h (14mph)16km/h (10mph)15km/h (9mph)
Gusts43km/h (27mph)42km/h (26mph)40km/h (25mph)38km/h (24mph)41km/h (25mph)26km/h (16mph)31km/h (19mph)26km/h (16mph)
Direction 147°
SSE
118°
ESE
104°
ESE
101°
E
112°
ESE
111°
ESE
103°
ESE
83°
E
Wind chill7°C (44°F)6°C (43°F)5°C (41°F)6°C (43°F)8°C (46°F)9°C (48°F)7°C (45°F)7°C (44°F)
Waves
Height0.9m (2.8ft)0.9m (3.0ft)1.0m (3.2ft)1.1m (3.5ft)1.2m (4.1ft)1.4m (4.7ft)1.5m (5.0ft)1.5m (5.1ft)
Direction 225°
SW
229°
SW
232°
SW
233°
SW
235°
SW
238°
WSW
238°
WSW
238°
WSW
Period11.5 sec.11.0 sec.10.7 sec.10.1 sec.10.2 sec.14.8 sec.13.5 sec.9.8 sec.
Significant height1.3m (4.3ft)1.3m (4.3ft)1.4m (4.6ft)0.3m (1ft)0.7m (2.3ft)1.1m (3.6ft)1.2m (3.9ft)0.9m (3ft)
Sea water temperature
Water temperature6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)6°C (43°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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