Sea weather in Castries in Saint Lucia All the beach weather in Castries

All the essential weather information for enjoying the beach in Castries in Saint Lucia, 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 Castries over the next 7 days?

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

Date Outside temp. Our opinion
Monday 16 June 202574°F to 81°Fdiscouraged
Tuesday 17 June 202579°F to 81°Fdiscouraged
Wednesday 18 June 202579°F to 81°Fdiscouraged
Thursday 19 June 202579°F to 81°Fdiscouraged
Friday 20 June 202574°F to 81°Fdiscouraged
Saturday 21 June 202579°F to 81°Fdiscouraged
Sunday 22 June 202579°F to 81°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Castries

Sea weather on Monday 16 June 2025

On Monday 16 June 2025, the sun will rise at 05:37 and will set at 18:33 on the beach(es) of Castries. The outside temperature will be a high of 81°F t and a low of 74°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 23mph km/h (with gusts up to 32.3mph). Wave height will be up to 5.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (80°F)27°C (80°F)27°C (80°F)27°C (81°F)23°C (74°F)25°C (77°F)27°C (80°F)27°C (80°F)
Perceived temperature30°C (86°F)30°C (85°F)30°C (86°F)30°C (87°F)25°C (78°F)27°C (80°F)30°C (86°F)30°C (86°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%81%80%78%81%80%81%82%
Barometric pressure1018 hPa1017 hPa1017 hPa1018 hPa1018 hPa1016 hPa1015 hPa1016 hPa
Cloud cover84%88%77%2%82%5%76%84%
Heat index30°C (86°F)30°C (85°F)30°C (86°F)30°C (87°F)25°C (78°F)27°C (80°F)30°C (86°F)30°C (86°F)
Dew point24°C (74°F)23°C (73°F)23°C (74°F)23°C (74°F)20°C (68°F)21°C (70°F)23°C (74°F)23°C (74°F)
Wind
Speed31km/h (19mph)30km/h (19mph)32km/h (20mph)33km/h (20mph)34km/h (21mph)35km/h (22mph)37km/h (23mph)37km/h (23mph)
Gusts42km/h (26mph)42km/h (26mph)44km/h (27mph)45km/h (28mph)39km/h (24mph)36km/h (23mph)52km/h (32mph)52km/h (32mph)
Direction 74°
ENE
77°
ENE
74°
ENE
86°
E
71°
ENE
69°
ENE
72°
ENE
76°
ENE
Wind chill27°C (80°F)27°C (80°F)27°C (80°F)27°C (81°F)23°C (74°F)25°C (77°F)27°C (80°F)27°C (80°F)
Waves
Height1.4m (4.7ft)1.4m (4.7ft)1.4m (4.6ft)1.4m (4.7ft)1.4m (4.7ft)1.5m (4.9ft)1.6m (5.2ft)1.7m (5.7ft)
Direction 86°
E
86°
E
86°
E
85°
E
85°
E
85°
E
80°
E
79°
E
Period12.8 sec.12.7 sec.12.6 sec.12.4 sec.12.1 sec.11.9 sec.11.8 sec.11.7 sec.
Significant height1.1m (3.6ft)1.0m (3.3ft)1.0m (3.3ft)1.1m (3.6ft)1.0m (3.3ft)1.1m (3.6ft)1.3m (4.3ft)1.3m (4.3ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Tuesday 17 June 2025

On Tuesday 17 June 2025, the sun will rise at 05:37 and will set at 18:33 on the beach(es) of Castries. The outside temperature will be a high of 81°F t and a low of 79°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 5.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (80°F)26°C (79°F)26°C (79°F)27°C (80°F)26°C (80°F)27°C (80°F)26°C (80°F)26°C (80°F)
Perceived temperature30°C (85°F)29°C (84°F)29°C (84°F)30°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)30°C (85°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%81%80%80%80%81%82%83%
Barometric pressure1016 hPa1015 hPa1016 hPa1017 hPa1017 hPa1015 hPa1016 hPa1017 hPa
Cloud cover88%64%76%65%70%52%79%83%
Heat index30°C (85°F)29°C (84°F)29°C (84°F)30°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)30°C (85°F)
Dew point23°C (74°F)23°C (73°F)23°C (73°F)23°C (73°F)23°C (73°F)23°C (73°F)23°C (73°F)23°C (74°F)
Wind
Speed36km/h (22mph)36km/h (23mph)35km/h (22mph)36km/h (22mph)33km/h (20mph)34km/h (21mph)36km/h (22mph)36km/h (23mph)
Gusts49km/h (30mph)50km/h (31mph)48km/h (30mph)48km/h (30mph)49km/h (30mph)49km/h (30mph)49km/h (31mph)50km/h (31mph)
Direction 78°
ENE
77°
ENE
79°
ENE
78°
ENE
77°
ENE
72°
ENE
73°
ENE
74°
ENE
Wind chill27°C (80°F)26°C (79°F)26°C (79°F)27°C (80°F)26°C (80°F)27°C (80°F)26°C (80°F)26°C (80°F)
Waves
Height1.8m (5.8ft)1.8m (5.9ft)1.8m (5.9ft)1.8m (5.9ft)1.8m (5.8ft)1.7m (5.6ft)1.7m (5.6ft)1.8m (5.9ft)
Direction 79°
E
80°
E
80°
E
80°
E
80°
E
79°
E
81°
E
79°
E
Period11.6 sec.11.5 sec.11.3 sec.11.2 sec.11.0 sec.10.9 sec.10.8 sec.10.7 sec.
Significant height1.3m (4.3ft)1.3m (4.3ft)1.2m (3.9ft)1.2m (3.9ft)1.2m (3.9ft)1.2m (3.9ft)1.3m (4.3ft)1.3m (4.3ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Wednesday 18 June 2025

On Wednesday 18 June 2025, the sun will rise at 05:37 and will set at 18:34 on the beach(es) of Castries. The outside temperature will be a high of 81°F t and a low of 79°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 24.2mph km/h (with gusts up to 32.3mph). Wave height will be up to 6.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature26°C (79°F)26°C (80°F)26°C (80°F)27°C (80°F)26°C (79°F)26°C (79°F)26°C (80°F)26°C (79°F)
Perceived temperature29°C (85°F)29°C (85°F)29°C (85°F)30°C (86°F)29°C (85°F)29°C (85°F)30°C (85°F)29°C (85°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%82%83%83%82%83%84%84%
Barometric pressure1017 hPa1015 hPa1016 hPa1018 hPa1017 hPa1016 hPa1016 hPa1018 hPa
Cloud cover53%75%83%86%93%100%98%94%
Heat index29°C (85°F)29°C (85°F)29°C (85°F)30°C (86°F)29°C (85°F)29°C (85°F)30°C (85°F)29°C (85°F)
Dew point23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (73°F)23°C (74°F)23°C (74°F)23°C (74°F)
Wind
Speed38km/h (23mph)39km/h (24mph)37km/h (23mph)36km/h (23mph)36km/h (22mph)35km/h (22mph)35km/h (22mph)35km/h (22mph)
Gusts52km/h (32mph)51km/h (32mph)50km/h (31mph)49km/h (30mph)51km/h (32mph)49km/h (31mph)50km/h (31mph)50km/h (31mph)
Direction 73°
ENE
73°
ENE
76°
ENE
77°
ENE
78°
ENE
77°
ENE
75°
ENE
78°
ENE
Wind chill26°C (79°F)26°C (80°F)26°C (80°F)27°C (80°F)26°C (79°F)26°C (79°F)26°C (80°F)26°C (79°F)
Waves
Height1.9m (6.1ft)1.9m (6.3ft)1.9m (6.3ft)1.9m (6.1ft)1.8m (5.9ft)1.8m (5.9ft)1.8m (5.8ft)1.7m (5.7ft)
Direction 78°
ENE
78°
ENE
78°
ENE
80°
E
81°
E
80°
E
80°
E
80°
E
Period10.8 sec.10.8 sec.10.8 sec.10.8 sec.10.8 sec.10.8 sec.10.8 sec.10.8 sec.
Significant height1.4m (4.6ft)1.3m (4.3ft)1.3m (4.3ft)1.2m (3.9ft)1.2m (3.9ft)1.3m (4.3ft)1.3m (4.3ft)1.2m (3.9ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Thursday 19 June 2025

On Thursday 19 June 2025, the sun will rise at 05:37 and will set at 18:34 on the beach(es) of Castries. The outside temperature will be a high of 81°F t and a low of 79°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 21.8mph km/h (with gusts up to 29.2mph). Wave height will be up to 5.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (80°F)26°C (80°F)27°C (80°F)27°C (80°F)26°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)
Perceived temperature30°C (86°F)30°C (85°F)30°C (85°F)30°C (86°F)29°C (85°F)30°C (85°F)30°C (85°F)30°C (86°F)
Precipitation0in0.1in0in0in0in0in0in0in
Humidity85%84%83%82%82%81%81%84%
Barometric pressure1017 hPa1015 hPa1017 hPa1018 hPa1017 hPa1016 hPa1016 hPa1017 hPa
Cloud cover90%94%95%92%85%92%68%84%
Heat index30°C (86°F)30°C (85°F)30°C (85°F)30°C (86°F)29°C (85°F)30°C (85°F)30°C (85°F)30°C (86°F)
Dew point24°C (75°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (73°F)23°C (74°F)23°C (74°F)24°C (75°F)
Wind
Speed35km/h (21mph)33km/h (21mph)31km/h (19mph)30km/h (19mph)30km/h (18mph)29km/h (18mph)28km/h (17mph)31km/h (19mph)
Gusts47km/h (29mph)46km/h (28mph)43km/h (27mph)41km/h (26mph)42km/h (26mph)40km/h (25mph)40km/h (25mph)44km/h (27mph)
Direction 81°
E
87°
E
87°
E
92°
E
94°
E
90°
E
83°
E
79°
ENE
Wind chill27°C (80°F)26°C (80°F)27°C (80°F)27°C (80°F)26°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)
Waves
Height1.7m (5.7ft)1.7m (5.5ft)1.6m (5.4ft)1.6m (5.2ft)1.6m (5.1ft)1.5m (4.9ft)1.5m (4.9ft)1.5m (4.9ft)
Direction 80°
E
80°
E
80°
E
79°
ENE
79°
ENE
79°
E
80°
E
80°
E
Period13.5 sec.13.2 sec.12.9 sec.12.7 sec.12.7 sec.12.6 sec.12.7 sec.12.7 sec.
Significant height1.2m (3.9ft)1.2m (3.9ft)1.1m (3.6ft)1.1m (3.6ft)1.0m (3.3ft)0.9m (3ft)1.0m (3.3ft)1.1m (3.6ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Friday 20 June 2025

On Friday 20 June 2025, the sun will rise at 05:37 and will set at 18:34 on the beach(es) of Castries. The outside temperature will be a high of 81°F t and a low of 74°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 28.6mph). Wave height will be up to 5.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)
Perceived temperature30°C (86°F)30°C (86°F)30°C (85°F)30°C (86°F)29°C (84°F)30°C (85°F)30°C (86°F)30°C (86°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%82%82%81%77%78%81%80%
Barometric pressure1017 hPa1015 hPa1016 hPa1017 hPa1017 hPa1016 hPa1016 hPa1018 hPa
Cloud cover86%87%87%77%87%23%16%20%
Heat index30°C (86°F)30°C (86°F)30°C (85°F)30°C (86°F)29°C (84°F)30°C (85°F)30°C (86°F)30°C (86°F)
Dew point23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)22°C (72°F)23°C (73°F)23°C (74°F)23°C (74°F)
Wind
Speed32km/h (20mph)32km/h (20mph)32km/h (20mph)33km/h (21mph)29km/h (18mph)28km/h (18mph)30km/h (19mph)32km/h (20mph)
Gusts44km/h (27mph)43km/h (27mph)45km/h (28mph)45km/h (28mph)46km/h (29mph)42km/h (26mph)44km/h (27mph)45km/h (28mph)
Direction 86°
E
89°
E
89°
E
88°
E
90°
E
92°
E
87°
E
86°
E
Wind chill27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)
Waves
Height1.5m (5.0ft)1.5m (5.0ft)1.5m (4.9ft)1.4m (4.7ft)1.4m (4.7ft)1.4m (4.7ft)1.4m (4.6ft)1.8m (5.9ft)
Direction 80°
E
81°
E
81°
E
81°
E
81°
E
82°
E
82°
E
95°
E
Period12.7 sec.12.2 sec.12.2 sec.12.2 sec.12.0 sec.9.7 sec.9.6 sec.9.2 sec.
Significant height1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)0.9m (3ft)1.0m (3.3ft)1.1m (3.6ft)1.0m (3.3ft)1.0m (3.3ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Saturday 21 June 2025

On Saturday 21 June 2025, the sun will rise at 05:38 and will set at 18:34 on the beach(es) of Castries. The outside temperature will be a high of 81°F t and a low of 79°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 6.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)26°C (79°F)27°C (80°F)27°C (80°F)27°C (80°F)
Perceived temperature30°C (86°F)30°C (85°F)30°C (85°F)29°C (85°F)29°C (84°F)29°C (85°F)30°C (85°F)30°C (85°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity82%80%81%79%79%79%81%82%
Barometric pressure1017 hPa1016 hPa1017 hPa1018 hPa1017 hPa1016 hPa1016 hPa1017 hPa
Cloud cover24%71%71%21%26%42%56%27%
Heat index30°C (86°F)30°C (85°F)30°C (85°F)29°C (85°F)29°C (84°F)29°C (85°F)30°C (85°F)30°C (85°F)
Dew point23°C (74°F)23°C (73°F)23°C (74°F)23°C (73°F)22°C (72°F)23°C (73°F)23°C (73°F)23°C (74°F)
Wind
Speed31km/h (19mph)33km/h (20mph)35km/h (22mph)33km/h (21mph)31km/h (19mph)31km/h (19mph)35km/h (22mph)36km/h (23mph)
Gusts43km/h (27mph)45km/h (28mph)47km/h (29mph)47km/h (29mph)48km/h (30mph)46km/h (29mph)49km/h (30mph)50km/h (31mph)
Direction 85°
E
86°
E
81°
E
84°
E
85°
E
84°
E
79°
E
83°
E
Wind chill27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)26°C (79°F)27°C (80°F)27°C (80°F)27°C (80°F)
Waves
Height1.8m (5.9ft)1.8m (6.0ft)1.9m (6.1ft)2.0m (6.6ft)2.0m (6.6ft)2.0m (6.6ft)2.0m (6.6ft)2.0m (6.6ft)
Direction 95°
E
96°
E
96°
E
96°
E
95°
E
95°
E
95°
E
96°
E
Period9.1 sec.9.1 sec.9.1 sec.9.1 sec.9.7 sec.10.2 sec.9.2 sec.9.3 sec.
Significant height1.0m (3.3ft)1.1m (3.6ft)1.1m (3.6ft)1.2m (3.9ft)1.2m (3.9ft)1.1m (3.6ft)1.2m (3.9ft)1.1m (3.6ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)

Sea weather on Sunday 22 June 2025

On Sunday 22 June 2025, the sun will rise at 05:38 and will set at 18:35 on the beach(es) of Castries. The outside temperature will be a high of 81°F t and a low of 79°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 23mph km/h (with gusts up to 30.5mph). Wave height will be up to 6.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature26°C (80°F)27°C (80°F)27°C (80°F)26°C (80°F)26°C (79°F)27°C (80°F)27°C (80°F)26°C (79°F)
Perceived temperature29°C (85°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (83°F)29°C (85°F)30°C (85°F)29°C (85°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity79%76%77%78%77%79%80%81%
Barometric pressure1017 hPa1016 hPa1016 hPa1017 hPa1017 hPa1016 hPa1015 hPa1016 hPa
Cloud cover34%42%37%26%35%37%45%75%
Heat index29°C (85°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (83°F)29°C (85°F)30°C (85°F)29°C (85°F)
Dew point23°C (73°F)22°C (72°F)22°C (72°F)22°C (72°F)22°C (71°F)23°C (73°F)23°C (73°F)23°C (73°F)
Wind
Speed34km/h (21mph)33km/h (20mph)35km/h (22mph)37km/h (23mph)35km/h (22mph)34km/h (21mph)34km/h (21mph)35km/h (22mph)
Gusts47km/h (29mph)45km/h (28mph)48km/h (30mph)47km/h (29mph)43km/h (27mph)48km/h (30mph)47km/h (29mph)49km/h (30mph)
Direction 79°
E
74°
ENE
71°
ENE
70°
ENE
70°
ENE
70°
ENE
73°
ENE
75°
ENE
Wind chill26°C (80°F)27°C (80°F)27°C (80°F)26°C (80°F)26°C (79°F)27°C (80°F)27°C (80°F)26°C (79°F)
Waves
Height2.0m (6.6ft)1.9m (6.2ft)1.9m (6.2ft)1.9m (6.2ft)2.0m (6.6ft)1.9m (6.2ft)1.8m (5.9ft)1.8m (5.9ft)
Direction 96°
E
96°
E
96°
E
96°
E
96°
E
96°
E
96°
E
97°
E
Period9.8 sec.10.3 sec.9.3 sec.9.4 sec.9.9 sec.10.1 sec.10.0 sec.10.0 sec.
Significant height1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)1.0m (3.3ft)1.1m (3.6ft)
Sea water temperature
Water temperature27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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