Sea weather in Grand Cul-de-Sac in Saint-Barthelemy All the beach weather in Grand Cul-de-Sac
All the essential weather information for enjoying the beach in Grand Cul-de-Sac in Saint-Barthelemy, 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 Grand Cul-de-Sac over the next 7 days?
Discover the best moment to go to the beach in Grand Cul-de-Sac in Saint-Barthelemy this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Grand Cul-de-Sac. You can see full forecasts by clicking on the day you want to see in the table below.
| Date | Outside temp. | Max wind | Our opinion | Details |
|---|---|---|---|---|
| Sunday 14 December 2025 | 74°F to 81°F | 16.2mph | discouraged | all the sea weather |
| Monday 15 December 2025 | 79°F to 81°F | 12.4mph | discouraged | all the sea weather |
| Tuesday 16 December 2025 | 79°F to 81°F | 17.4mph | discouraged | all the sea weather |
| Wednesday 17 December 2025 | 79°F to 81°F | 18mph | discouraged | all the sea weather |
| Thursday 18 December 2025 | 79°F to 81°F | 19.9mph | discouraged | all the sea weather |
| Friday 19 December 2025 | 79°F to 81°F | 19.9mph | discouraged | all the sea weather |
| Saturday 20 December 2025 | 79°F to 81°F | 21.8mph | discouraged | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Grand Cul-de-Sac
Sea weather on Sunday 14 December 2025
On Sunday 14 December 2025, the sun will rise at 06:34 and will set at 17:39 on the beach(es) of Grand Cul-de-Sac. 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 24.9mph km/h (with gusts up to 33.6mph). Wave height will be up to 4.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  | |  |  | |  | | |
| Outside temperature | 27°C (80°F) | 27°C (80°F) | 27°C (80°F) | 27°C (80°F) | 26°C (79°F) | 25°C (76°F) | 27°C (80°F) | 27°C (80°F) |
| Perceived temperature | 29°C (84°F) | 29°C (84°F) | 29°C (85°F) | 29°C (84°F) | 28°C (82°F) | 26°C (79°F) | 29°C (84°F) | 29°C (85°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 72% | 70% | 73% | 69% | 69% | 67% | 71% | 78% |
| Barometric pressure | 1016 hPa | 1015 hPa | 1016 hPa | 1018 hPa | 1017 hPa | 1014 hPa | 1015 hPa | 1016 hPa |
| Cloud cover | 31% | 3% | 81% | 9% | 18% | 0% | 23% | 57% |
| Heat index | 29°C (84°F) | 29°C (84°F) | 29°C (85°F) | 29°C (84°F) | 28°C (82°F) | 26°C (79°F) | 29°C (84°F) | 29°C (85°F) |
| Dew point | 21°C (70°F) | 21°C (69°F) | 22°C (71°F) | 21°C (69°F) | 20°C (68°F) | 18°C (65°F) | 21°C (70°F) | 22°C (72°F) |
| Wind | ||||||||
| Speed | 39km/h (24mph) | 40km/h (25mph) | 38km/h (24mph) | 37km/h (23mph) | 35km/h (21mph) | 34km/h (21mph) | 29km/h (18mph) | 26km/h (16mph) |
| Gusts | 53km/h (33mph) | 54km/h (34mph) | 52km/h (32mph) | 50km/h (31mph) | 39km/h (24mph) | 36km/h (22mph) | 41km/h (26mph) | 36km/h (22mph) |
| Direction | 98° E | 103° ESE | 107° ESE | 109° ESE | 106° ESE | 111° ESE | 109° ESE | 104° ESE |
| Wind chill | 27°C (80°F) | 27°C (80°F) | 27°C (80°F) | 27°C (80°F) | 26°C (79°F) | 25°C (76°F) | 27°C (80°F) | 27°C (80°F) |
| Waves | ||||||||
| Height | 1.5m (5.0ft) | 1.5m (5.1ft) | 1.5m (5.0ft) | 1.4m (4.8ft) | 1.5m (4.8ft) | 1.5m (4.8ft) | 1.5m (4.8ft) | 1.4m (4.7ft) |
| Direction | 119° ESE | 119° ESE | 118° ESE | 118° ESE | 117° ESE | 116° ESE | 114° ESE | 114° ESE |
| Period | 11.1 sec. | 10.6 sec. | 10.3 sec. | 9.2 sec. | 9.6 sec. | 9.3 sec. | 9.0 sec. | 8.8 sec. |
| Significant height | 1.2m (3.9ft) | 1.2m (3.9ft) | 1.1m (3.6ft) | 1.4m (4.6ft) | 1.1m (3.6ft) | 1.0m (3.3ft) | 1.0m (3.3ft) | 0.9m (3ft) |
| Sea water temperature | ||||||||
| Water temperature | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) |
Sea weather on Monday 15 December 2025
On Monday 15 December 2025, the sun will rise at 06:35 and will set at 17:40 on the beach(es) of Grand Cul-de-Sac. 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 18.6mph km/h (with gusts up to 24.9mph). Wave height will be up to 4.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | |  | | | | |
| Outside temperature | 27°C (80°F) | 27°C (80°F) | 27°C (80°F) | 27°C (80°F) | 26°C (79°F) | 26°C (79°F) | 26°C (79°F) | 27°C (80°F) |
| Perceived temperature | 29°C (85°F) | 29°C (85°F) | 29°C (85°F) | 30°C (85°F) | 29°C (84°F) | 29°C (84°F) | 28°C (82°F) | 29°C (85°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 80% | 79% | 78% | 79% | 78% | 77% | 71% | 75% |
| Barometric pressure | 1015 hPa | 1014 hPa | 1015 hPa | 1017 hPa | 1016 hPa | 1014 hPa | 1014 hPa | 1016 hPa |
| Cloud cover | 67% | 62% | 66% | 60% | 61% | 59% | 7% | 35% |
| Heat index | 29°C (85°F) | 29°C (85°F) | 29°C (85°F) | 30°C (85°F) | 29°C (84°F) | 29°C (84°F) | 28°C (82°F) | 29°C (85°F) |
| Dew point | 23°C (73°F) | 23°C (73°F) | 23°C (73°F) | 23°C (73°F) | 22°C (72°F) | 22°C (71°F) | 20°C (68°F) | 22°C (71°F) |
| Wind | ||||||||
| Speed | 27km/h (17mph) | 30km/h (19mph) | 29km/h (18mph) | 30km/h (18mph) | 26km/h (16mph) | 20km/h (12mph) | 20km/h (12mph) | 20km/h (13mph) |
| Gusts | 36km/h (22mph) | 40km/h (25mph) | 39km/h (24mph) | 40km/h (25mph) | 39km/h (24mph) | 28km/h (17mph) | 32km/h (20mph) | 28km/h (17mph) |
| Direction | 100° E | 102° ESE | 100° E | 102° ESE | 112° ESE | 126° SE | 111° ESE | 111° ESE |
| Wind chill | 27°C (80°F) | 27°C (80°F) | 27°C (80°F) | 27°C (80°F) | 26°C (79°F) | 26°C (79°F) | 26°C (79°F) | 27°C (80°F) |
| Waves | ||||||||
| Height | 1.4m (4.6ft) | 1.3m (4.4ft) | 1.3m (4.4ft) | 1.4m (4.5ft) | 1.3m (4.2ft) | 1.2m (3.9ft) | 1.1m (3.6ft) | 1.0m (3.4ft) |
| Direction | 114° ESE | 114° ESE | 115° ESE | 116° ESE | 116° ESE | 117° ESE | 118° ESE | 118° ESE |
| Period | 8.5 sec. | 9.3 sec. | 16.5 sec. | 16.3 sec. | 16.1 sec. | 9.2 sec. | 9.2 sec. | 9.2 sec. |
| Significant height | 0.8m (2.6ft) | 0.7m (2.3ft) | 0.8m (2.6ft) | 0.8m (2.6ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.5m (1.6ft) | 0.5m (1.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) |
Sea weather on Tuesday 16 December 2025
On Tuesday 16 December 2025, the sun will rise at 06:35 and will set at 17:40 on the beach(es) of Grand Cul-de-Sac. 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 18.6mph km/h (with gusts up to 27.3mph). Wave height will be up to 3.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 27°C (80°F) | 27°C (80°F) | 27°C (80°F) | 27°C (80°F) | 26°C (79°F) | 26°C (80°F) | 27°C (80°F) | 27°C (80°F) |
| Perceived temperature | 29°C (85°F) | 29°C (85°F) | 29°C (85°F) | 29°C (85°F) | 29°C (83°F) | 28°C (83°F) | 29°C (84°F) | 29°C (85°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 77% | 79% | 78% | 78% | 74% | 71% | 74% | 76% |
| Barometric pressure | 1015 hPa | 1013 hPa | 1014 hPa | 1016 hPa | 1015 hPa | 1013 hPa | 1015 hPa | 1016 hPa |
| Cloud cover | 60% | 58% | 71% | 62% | 74% | 37% | 61% | 74% |
| Heat index | 29°C (85°F) | 29°C (85°F) | 29°C (85°F) | 29°C (85°F) | 29°C (83°F) | 28°C (83°F) | 29°C (84°F) | 29°C (85°F) |
| Dew point | 22°C (72°F) | 23°C (73°F) | 22°C (72°F) | 22°C (72°F) | 21°C (70°F) | 21°C (69°F) | 22°C (71°F) | 22°C (72°F) |
| Wind | ||||||||
| Speed | 22km/h (13mph) | 23km/h (15mph) | 26km/h (16mph) | 29km/h (18mph) | 30km/h (19mph) | 26km/h (16mph) | 24km/h (15mph) | 28km/h (17mph) |
| Gusts | 29km/h (18mph) | 31km/h (19mph) | 35km/h (22mph) | 39km/h (24mph) | 44km/h (27mph) | 39km/h (24mph) | 34km/h (21mph) | 38km/h (24mph) |
| Direction | 100° E | 92° E | 90° E | 96° E | 96° E | 103° ESE | 92° E | 81° E |
| Wind chill | 27°C (80°F) | 27°C (80°F) | 27°C (80°F) | 27°C (80°F) | 26°C (79°F) | 26°C (80°F) | 27°C (80°F) | 27°C (80°F) |
| Waves | ||||||||
| Height | 1.0m (3.2ft) | 1.0m (3.2ft) | 1.0m (3.2ft) | 1.0m (3.3ft) | 1.0m (3.4ft) | 1.0m (3.4ft) | 1.0m (3.3ft) | 1.0m (3.4ft) |
| Direction | 118° ESE | 118° ESE | 118° ESE | 119° ESE | 119° ESE | 118° ESE | 118° ESE | 118° ESE |
| Period | 9.1 sec. | 9.1 sec. | 14.4 sec. | 9.2 sec. | 9.2 sec. | 13.6 sec. | 13.6 sec. | 9.3 sec. |
| Significant height | 1.2m (3.9ft) | 1.1m (3.6ft) | 0.7m (2.3ft) | 1.1m (3.6ft) | 1.1m (3.6ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 1.0m (3.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) |
Sea weather on Wednesday 17 December 2025
On Wednesday 17 December 2025, the sun will rise at 06:36 and will set at 17:40 on the beach(es) of Grand Cul-de-Sac. 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 19.9mph km/h (with gusts up to 28mph). Wave height will be up to 6.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 27°C (80°F) | 26°C (79°F) | 27°C (80°F) | 27°C (80°F) | 26°C (79°F) | 26°C (80°F) | 27°C (80°F) | 27°C (80°F) |
| Perceived temperature | 29°C (85°F) | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 28°C (83°F) | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 77% | 79% | 75% | 71% | 72% | 74% | 74% | 76% |
| Barometric pressure | 1016 hPa | 1015 hPa | 1015 hPa | 1017 hPa | 1016 hPa | 1014 hPa | 1015 hPa | 1016 hPa |
| Cloud cover | 57% | 72% | 76% | 29% | 54% | 54% | 71% | 75% |
| Heat index | 29°C (85°F) | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 28°C (83°F) | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) |
| Dew point | 22°C (72°F) | 22°C (72°F) | 22°C (71°F) | 21°C (70°F) | 21°C (70°F) | 21°C (70°F) | 22°C (71°F) | 22°C (71°F) |
| Wind | ||||||||
| Speed | 26km/h (16mph) | 23km/h (15mph) | 32km/h (20mph) | 31km/h (19mph) | 28km/h (18mph) | 31km/h (19mph) | 30km/h (19mph) | 29km/h (18mph) |
| Gusts | 35km/h (21mph) | 32km/h (20mph) | 44km/h (27mph) | 43km/h (27mph) | 42km/h (26mph) | 45km/h (28mph) | 41km/h (25mph) | 41km/h (25mph) |
| Direction | 82° E | 89° E | 92° E | 88° E | 93° E | 90° E | 91° E | 81° E |
| Wind chill | 27°C (80°F) | 26°C (79°F) | 27°C (80°F) | 27°C (80°F) | 26°C (79°F) | 26°C (80°F) | 27°C (80°F) | 27°C (80°F) |
| Waves | ||||||||
| Height | 1.1m (3.5ft) | 1.0m (3.4ft) | 1.1m (3.6ft) | 1.2m (3.9ft) | 1.3m (4.1ft) | 1.2m (4.1ft) | 1.2m (4.0ft) | 2.1m (6.8ft) |
| Direction | 117° ESE | 116° ESE | 115° ESE | 114° ESE | 110° ESE | 108° ESE | 107° ESE | 10° N |
| Period | 14.6 sec. | 14.5 sec. | 10.0 sec. | 9.9 sec. | 9.9 sec. | 9.8 sec. | 9.8 sec. | 11.0 sec. |
| Significant height | 0.7m (2.3ft) | 0.8m (2.6ft) | 1.1m (3.6ft) | 1.2m (3.9ft) | 1.1m (3.6ft) | 1.1m (3.6ft) | 1.2m (3.9ft) | 0.9m (3ft) |
| Sea water temperature | ||||||||
| Water temperature | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) |
Sea weather on Thursday 18 December 2025
On Thursday 18 December 2025, the sun will rise at 06:36 and will set at 17:41 on the beach(es) of Grand Cul-de-Sac. 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 21.1mph km/h (with gusts up to 28.6mph). Wave height will be up to 6.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | |  | | | |
| Outside temperature | 27°C (80°F) | 26°C (79°F) | 26°C (80°F) | 26°C (79°F) | 26°C (79°F) | 26°C (79°F) | 26°C (80°F) | 27°C (80°F) |
| Perceived temperature | 29°C (84°F) | 29°C (83°F) | 29°C (83°F) | 29°C (83°F) | 29°C (83°F) | 29°C (83°F) | 29°C (84°F) | 29°C (85°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 73% | 74% | 72% | 75% | 75% | 77% | 77% | 76% |
| Barometric pressure | 1015 hPa | 1014 hPa | 1015 hPa | 1016 hPa | 1016 hPa | 1015 hPa | 1015 hPa | 1016 hPa |
| Cloud cover | 57% | 56% | 42% | 68% | 62% | 77% | 70% | 59% |
| Heat index | 29°C (84°F) | 29°C (83°F) | 29°C (83°F) | 29°C (83°F) | 29°C (83°F) | 29°C (83°F) | 29°C (84°F) | 29°C (85°F) |
| Dew point | 21°C (71°F) | 21°C (70°F) | 21°C (70°F) | 22°C (71°F) | 21°C (71°F) | 22°C (71°F) | 22°C (72°F) | 22°C (72°F) |
| Wind | ||||||||
| Speed | 34km/h (21mph) | 29km/h (18mph) | 32km/h (20mph) | 30km/h (19mph) | 31km/h (19mph) | 31km/h (19mph) | 32km/h (20mph) | 32km/h (20mph) |
| Gusts | 45km/h (28mph) | 39km/h (24mph) | 42km/h (26mph) | 42km/h (26mph) | 46km/h (29mph) | 44km/h (27mph) | 44km/h (27mph) | 44km/h (27mph) |
| Direction | 86° E | 82° E | 79° ENE | 76° ENE | 80° E | 75° ENE | 75° ENE | 76° ENE |
| Wind chill | 27°C (80°F) | 26°C (79°F) | 26°C (80°F) | 26°C (79°F) | 26°C (79°F) | 26°C (79°F) | 26°C (80°F) | 27°C (80°F) |
| Waves | ||||||||
| Height | 2.0m (6.6ft) | 2.0m (6.5ft) | 2.0m (6.5ft) | 1.9m (6.2ft) | 1.9m (6.2ft) | 1.9m (6.2ft) | 1.8m (5.9ft) | 1.8m (5.9ft) |
| Direction | 24° NNE | 40° NE | 46° NE | 50° NE | 50° NE | 48° NE | 50° NE | 56° NE |
| Period | 10.9 sec. | 10.8 sec. | 10.5 sec. | 10.0 sec. | 10.2 sec. | 9.8 sec. | 10.0 sec. | 9.9 sec. |
| Significant height | 1.0m (3.3ft) | 1.1m (3.6ft) | 1.2m (3.9ft) | 1.1m (3.6ft) | 1.2m (3.9ft) | 1.0m (3.3ft) | 1.2m (3.9ft) | 1.3m (4.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 26°C (78°F) | 26°C (78°F) | 26°C (78°F) | 28°C (82°F) | 28°C (82°F) | 28°C (82°F) | 28°C (82°F) | 28°C (82°F) |
Sea weather on Friday 19 December 2025
On Friday 19 December 2025, the sun will rise at 06:37 and will set at 17:41 on the beach(es) of Grand Cul-de-Sac. 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 20.5mph km/h (with gusts up to 29.2mph). Wave height will be up to 6.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 27°C (80°F) | 27°C (80°F) | 27°C (80°F) | 27°C (80°F) | 26°C (79°F) | 26°C (79°F) | 27°C (80°F) | 27°C (80°F) |
| Perceived temperature | 29°C (84°F) | 29°C (85°F) | 29°C (84°F) | 29°C (84°F) | 29°C (83°F) | 29°C (84°F) | 29°C (85°F) | 29°C (84°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 77% | 76% | 77% | 75% | 76% | 76% | 76% | 76% |
| Barometric pressure | 1015 hPa | 1014 hPa | 1015 hPa | 1016 hPa | 1016 hPa | 1014 hPa | 1015 hPa | 1016 hPa |
| Cloud cover | 63% | 53% | 57% | 48% | 61% | 61% | 58% | 65% |
| Heat index | 29°C (84°F) | 29°C (85°F) | 29°C (84°F) | 29°C (84°F) | 29°C (83°F) | 29°C (84°F) | 29°C (85°F) | 29°C (84°F) |
| Dew point | 22°C (72°F) | 22°C (72°F) | 22°C (72°F) | 22°C (71°F) | 22°C (71°F) | 22°C (71°F) | 22°C (72°F) | 22°C (71°F) |
| Wind | ||||||||
| Speed | 33km/h (20mph) | 33km/h (21mph) | 33km/h (20mph) | 33km/h (21mph) | 31km/h (19mph) | 30km/h (19mph) | 31km/h (19mph) | 32km/h (20mph) |
| Gusts | 45km/h (28mph) | 45km/h (28mph) | 44km/h (27mph) | 47km/h (29mph) | 46km/h (29mph) | 43km/h (27mph) | 44km/h (27mph) | 45km/h (28mph) |
| Direction | 75° ENE | 75° ENE | 72° ENE | 78° ENE | 75° ENE | 78° ENE | 77° ENE | 79° ENE |
| Wind chill | 27°C (80°F) | 27°C (80°F) | 27°C (80°F) | 27°C (80°F) | 26°C (79°F) | 26°C (79°F) | 27°C (80°F) | 27°C (80°F) |
| Waves | ||||||||
| Height | 1.9m (6.2ft) | 1.9m (6.2ft) | 1.9m (6.2ft) | 2.0m (6.6ft) | 2.0m (6.6ft) | 1.9m (6.2ft) | 1.9m (6.2ft) | 1.9m (6.2ft) |
| Direction | 62° ENE | 67° ENE | 68° ENE | 68° ENE | 69° ENE | 71° ENE | 74° ENE | 76° ENE |
| Period | 9.8 sec. | 9.6 sec. | 9.1 sec. | 8.9 sec. | 9.0 sec. | 9.0 sec. | 9.0 sec. | 8.9 sec. |
| Significant height | 1.3m (4.3ft) | 1.2m (3.9ft) | 1.2m (3.9ft) | 1.3m (4.3ft) | 1.3m (4.3ft) | 1.2m (3.9ft) | 1.2m (3.9ft) | 1.2m (3.9ft) |
| Sea water temperature | ||||||||
| Water temperature | 28°C (82°F) | 28°C (82°F) | 28°C (82°F) | 28°C (82°F) | 28°C (82°F) | 28°C (82°F) | 28°C (82°F) | 28°C (82°F) |
Sea weather on Saturday 20 December 2025
On Saturday 20 December 2025, the sun will rise at 06:37 and will set at 17:42 on the beach(es) of Grand Cul-de-Sac. 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 29.8mph). Wave height will be up to 6.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 26°C (79°F) | 27°C (80°F) | 27°C (80°F) | 26°C (79°F) | 26°C (79°F) | 26°C (79°F) | 26°C (80°F) | 26°C (79°F) |
| Perceived temperature | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 28°C (83°F) | 29°C (83°F) | 29°C (84°F) | 29°C (84°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 76% | 76% | 75% | 76% | 76% | 76% | 75% | 77% |
| Barometric pressure | 1015 hPa | 1014 hPa | 1015 hPa | 1016 hPa | 1016 hPa | 1014 hPa | 1015 hPa | 1016 hPa |
| Cloud cover | 73% | 72% | 66% | 65% | 62% | 53% | 48% | 71% |
| Heat index | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 28°C (83°F) | 29°C (83°F) | 29°C (84°F) | 29°C (84°F) |
| Dew point | 22°C (71°F) | 22°C (71°F) | 22°C (71°F) | 22°C (71°F) | 22°C (71°F) | 22°C (71°F) | 22°C (71°F) | 22°C (71°F) |
| Wind | ||||||||
| Speed | 31km/h (19mph) | 32km/h (20mph) | 30km/h (19mph) | 30km/h (19mph) | 30km/h (19mph) | 31km/h (19mph) | 33km/h (21mph) | 35km/h (21mph) |
| Gusts | 43km/h (27mph) | 42km/h (26mph) | 41km/h (25mph) | 43km/h (27mph) | 45km/h (28mph) | 44km/h (27mph) | 46km/h (29mph) | 48km/h (30mph) |
| Direction | 72° ENE | 74° ENE | 72° ENE | 70° ENE | 67° ENE | 68° ENE | 67° ENE | 68° ENE |
| Wind chill | 26°C (79°F) | 27°C (80°F) | 27°C (80°F) | 26°C (79°F) | 26°C (79°F) | 26°C (79°F) | 26°C (80°F) | 26°C (79°F) |
| Waves | ||||||||
| Height | 2.0m (6.6ft) | 2.0m (6.6ft) | 2.1m (6.9ft) | 2.1m (6.9ft) | 2.1m (6.9ft) | 2.0m (6.6ft) | 2.1m (6.9ft) | 2.1m (6.9ft) |
| Direction | 78° ENE | 75° ENE | 69° ENE | 70° ENE | 74° ENE | 69° ENE | 66° ENE | 61° ENE |
| Period | 8.7 sec. | 8.7 sec. | 10.7 sec. | 14.8 sec. | 14.6 sec. | 14.3 sec. | 13.9 sec. | 13.5 sec. |
| Significant height | 1.3m (4.3ft) | 1.3m (4.3ft) | 1.2m (3.9ft) | 1.2m (3.9ft) | 1.1m (3.6ft) | 1.1m (3.6ft) | 1.2m (3.9ft) | 1.2m (3.9ft) |
| Sea water temperature | ||||||||
| Water temperature | 28°C (82°F) | 28°C (82°F) | 28°C (82°F) | 28°C (82°F) | 28°C (82°F) | 28°C (82°F) | 28°C (82°F) | 28°C (82°F) |