Sea weather in Saint-Denis on the island of Reunion All the beach weather in Saint-Denis
All the essential weather information for enjoying the beach in Saint-Denis on the island of Reunion, 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 Saint-Denis over the next 7 days?
Discover the best moment to go to the beach in Saint-Denis on the island of Reunion this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Saint-Denis. 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 |
|---|---|---|---|---|
| Monday 15 December 2025 | 72°F to 79°F | 21.1mph | discouraged | all the sea weather |
| Tuesday 16 December 2025 | 74°F to 79°F | 22.4mph | discouraged | all the sea weather |
| Wednesday 17 December 2025 | 77°F to 79°F | 20.5mph | discouraged | all the sea weather |
| Thursday 18 December 2025 | 77°F to 79°F | 18.6mph | discouraged | all the sea weather |
| Friday 19 December 2025 | 77°F to 79°F | 15.5mph | discouraged | all the sea weather |
| Saturday 20 December 2025 | 74°F to 79°F | 13.1mph | discouraged | all the sea weather |
| Sunday 21 December 2025 | 74°F to 79°F | 14.9mph | discouraged | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Saint-Denis
Sea weather on Monday 15 December 2025
On Monday 15 December 2025, the sun will rise at 05:32 and will set at 18:55 on the beach(es) of Saint-Denis. The outside temperature will be a high of 79°F t and a low of 72°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 21.8mph km/h (with gusts up to 29.2mph). 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 | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 26°C (78°F) | 25°C (76°F) | 23°C (74°F) | 24°C (76°F) | 25°C (77°F) |
| Perceived temperature | 27°C (80°F) | 27°C (80°F) | 27°C (80°F) | 27°C (81°F) | 26°C (79°F) | 25°C (77°F) | 26°C (79°F) | 27°C (80°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 79% | 79% | 76% | 72% | 71% | 70% | 71% | 70% |
| Barometric pressure | 1017 hPa | 1016 hPa | 1017 hPa | 1018 hPa | 1017 hPa | 1017 hPa | 1017 hPa | 1018 hPa |
| Cloud cover | 75% | 13% | 83% | 23% | 82% | 86% | 77% | 7% |
| Heat index | 27°C (80°F) | 27°C (80°F) | 27°C (80°F) | 27°C (81°F) | 26°C (79°F) | 25°C (77°F) | 26°C (79°F) | 27°C (80°F) |
| Dew point | 21°C (70°F) | 21°C (69°F) | 20°C (69°F) | 20°C (68°F) | 19°C (67°F) | 18°C (64°F) | 19°C (66°F) | 19°C (67°F) |
| Wind | ||||||||
| Speed | 35km/h (21mph) | 30km/h (19mph) | 29km/h (18mph) | 32km/h (20mph) | 35km/h (21mph) | 34km/h (21mph) | 34km/h (21mph) | 34km/h (21mph) |
| Gusts | 47km/h (29mph) | 40km/h (25mph) | 40km/h (25mph) | 42km/h (26mph) | 37km/h (23mph) | 37km/h (23mph) | 41km/h (26mph) | 46km/h (29mph) |
| Direction | 110° ESE | 115° ESE | 116° ESE | 108° ESE | 103° ESE | 101° E | 102° ESE | 106° ESE |
| Wind chill | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 26°C (78°F) | 25°C (76°F) | 23°C (74°F) | 24°C (76°F) | 25°C (77°F) |
| Waves | ||||||||
| Height | 2.0m (6.6ft) | 1.9m (6.1ft) | 1.9m (6.1ft) | 2.0m (6.6ft) | 2.1m (7.0ft) | 2.1m (7.0ft) | 2.0m (6.7ft) | 1.9m (6.2ft) |
| Direction | 111° ESE | 108° ESE | 107° ESE | 103° ESE | 101° ESE | 99° E | 97° E | 97° E |
| Period | 12.0 sec. | 11.8 sec. | 11.7 sec. | 11.6 sec. | 11.3 sec. | 11.1 sec. | 11.0 sec. | 10.9 sec. |
| Significant height | 1.4m (4.6ft) | 1.2m (3.9ft) | 1.3m (4.3ft) | 1.5m (4.9ft) | 1.5m (4.9ft) | 1.6m (5.2ft) | 1.5m (4.9ft) | 1.3m (4.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 27°C (81°F) |
Sea weather on Tuesday 16 December 2025
On Tuesday 16 December 2025, the sun will rise at 05:32 and will set at 18:56 on the beach(es) of Saint-Denis. The outside temperature will be a high of 79°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 22.4mph km/h (with gusts up to 31.1mph). 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 | 25°C (77°F) | 25°C (76°F) | 25°C (77°F) | 26°C (78°F) | 25°C (77°F) | 23°C (74°F) | 25°C (77°F) | 25°C (77°F) |
| Perceived temperature | 27°C (80°F) | 26°C (79°F) | 27°C (80°F) | 27°C (81°F) | 27°C (80°F) | 25°C (77°F) | 27°C (81°F) | 27°C (80°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 70% | 72% | 70% | 66% | 72% | 72% | 75% | 77% |
| Barometric pressure | 1018 hPa | 1017 hPa | 1017 hPa | 1018 hPa | 1017 hPa | 1016 hPa | 1016 hPa | 1018 hPa |
| Cloud cover | 77% | 71% | 82% | 45% | 75% | 82% | 72% | 78% |
| Heat index | 27°C (80°F) | 26°C (79°F) | 27°C (80°F) | 27°C (81°F) | 27°C (80°F) | 25°C (77°F) | 27°C (81°F) | 27°C (80°F) |
| Dew point | 19°C (67°F) | 19°C (67°F) | 19°C (67°F) | 19°C (66°F) | 20°C (67°F) | 18°C (65°F) | 20°C (69°F) | 20°C (69°F) |
| Wind | ||||||||
| Speed | 32km/h (20mph) | 28km/h (17mph) | 30km/h (19mph) | 30km/h (18mph) | 33km/h (20mph) | 32km/h (20mph) | 36km/h (22mph) | 36km/h (22mph) |
| Gusts | 43km/h (27mph) | 38km/h (24mph) | 41km/h (26mph) | 39km/h (24mph) | 50km/h (31mph) | 36km/h (22mph) | 49km/h (31mph) | 49km/h (30mph) |
| Direction | 104° ESE | 112° ESE | 108° ESE | 107° ESE | 93° E | 102° ESE | 102° ESE | 106° ESE |
| Wind chill | 25°C (77°F) | 25°C (76°F) | 25°C (77°F) | 26°C (78°F) | 25°C (77°F) | 23°C (74°F) | 25°C (77°F) | 25°C (77°F) |
| Waves | ||||||||
| Height | 1.8m (6.0ft) | 1.8m (5.8ft) | 1.8m (5.9ft) | 1.8m (5.8ft) | 1.8m (5.8ft) | 1.8m (6.1ft) | 1.9m (6.3ft) | 2.0m (6.6ft) |
| Direction | 97° E | 97° E | 98° E | 97° E | 98° E | 98° E | 100° E | 101° E |
| Period | 16.5 sec. | 16.4 sec. | 15.9 sec. | 15.6 sec. | 15.5 sec. | 15.2 sec. | 14.7 sec. | 14.5 sec. |
| Significant height | 1.2m (3.9ft) | 1.2m (3.9ft) | 1.2m (3.9ft) | 1.1m (3.6ft) | 1.3m (4.3ft) | 1.4m (4.6ft) | 1.5m (4.9ft) | 1.5m (4.9ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 27°C (81°F) |
Sea weather on Wednesday 17 December 2025
On Wednesday 17 December 2025, the sun will rise at 05:33 and will set at 18:56 on the beach(es) of Saint-Denis. The outside temperature will be a high of 79°F t and a low of 77°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 32.3mph). 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 | 25°C (77°F) | 25°C (76°F) | 25°C (76°F) | 25°C (78°F) | 25°C (77°F) | 25°C (78°F) | 26°C (78°F) | 25°C (78°F) |
| Perceived temperature | 27°C (80°F) | 27°C (80°F) | 27°C (80°F) | 27°C (81°F) | 27°C (80°F) | 27°C (81°F) | 28°C (82°F) | 27°C (81°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 77% | 77% | 77% | 75% | 75% | 76% | 76% | 76% |
| Barometric pressure | 1017 hPa | 1016 hPa | 1017 hPa | 1018 hPa | 1017 hPa | 1016 hPa | 1017 hPa | 1019 hPa |
| Cloud cover | 85% | 70% | 77% | 86% | 73% | 77% | 89% | 71% |
| Heat index | 27°C (80°F) | 27°C (80°F) | 27°C (80°F) | 27°C (81°F) | 27°C (80°F) | 27°C (81°F) | 28°C (82°F) | 27°C (81°F) |
| Dew point | 21°C (69°F) | 20°C (69°F) | 20°C (69°F) | 20°C (69°F) | 20°C (68°F) | 21°C (69°F) | 21°C (70°F) | 21°C (70°F) |
| Wind | ||||||||
| Speed | 32km/h (20mph) | 30km/h (18mph) | 31km/h (19mph) | 31km/h (19mph) | 34km/h (21mph) | 33km/h (21mph) | 33km/h (21mph) | 33km/h (21mph) |
| Gusts | 43km/h (27mph) | 40km/h (25mph) | 41km/h (26mph) | 41km/h (25mph) | 52km/h (32mph) | 49km/h (30mph) | 46km/h (28mph) | 45km/h (28mph) |
| Direction | 106° ESE | 109° ESE | 107° ESE | 103° ESE | 97° E | 98° E | 97° E | 105° ESE |
| Wind chill | 25°C (77°F) | 25°C (76°F) | 25°C (76°F) | 25°C (78°F) | 25°C (77°F) | 25°C (78°F) | 26°C (78°F) | 25°C (78°F) |
| Waves | ||||||||
| Height | 2.0m (6.6ft) | 1.9m (6.4ft) | 1.9m (6.2ft) | 1.9m (6.3ft) | 1.9m (6.4ft) | 2.0m (6.6ft) | 2.0m (6.6ft) | 2.0m (6.7ft) |
| Direction | 100° E | 100° E | 99° E | 98° E | 98° E | 99° E | 98° E | 97° E |
| Period | 14.3 sec. | 14.1 sec. | 13.8 sec. | 13.5 sec. | 13.4 sec. | 13.3 sec. | 13.3 sec. | 13.2 sec. |
| Significant height | 1.3m (4.3ft) | 1.2m (3.9ft) | 1.2m (3.9ft) | 1.3m (4.3ft) | 1.4m (4.6ft) | 1.5m (4.9ft) | 1.4m (4.6ft) | 1.4m (4.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 27°C (81°F) |
Sea weather on Thursday 18 December 2025
On Thursday 18 December 2025, the sun will rise at 05:33 and will set at 18:57 on the beach(es) of Saint-Denis. The outside temperature will be a high of 79°F t and a low of 77°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 31.1mph). 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 | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (78°F) | 25°C (77°F) | 25°C (78°F) | 25°C (78°F) | 25°C (78°F) |
| Perceived temperature | 27°C (81°F) | 27°C (80°F) | 27°C (80°F) | 27°C (81°F) | 27°C (80°F) | 27°C (81°F) | 28°C (82°F) | 27°C (81°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 77% | 76% | 79% | 78% | 77% | 78% | 78% | 77% |
| Barometric pressure | 1019 hPa | 1017 hPa | 1019 hPa | 1019 hPa | 1019 hPa | 1017 hPa | 1018 hPa | 1019 hPa |
| Cloud cover | 72% | 10% | 70% | 78% | 77% | 52% | 72% | 73% |
| Heat index | 27°C (81°F) | 27°C (80°F) | 27°C (80°F) | 27°C (81°F) | 27°C (80°F) | 27°C (81°F) | 28°C (82°F) | 27°C (81°F) |
| Dew point | 21°C (69°F) | 21°C (69°F) | 21°C (70°F) | 21°C (70°F) | 21°C (69°F) | 21°C (70°F) | 21°C (70°F) | 21°C (70°F) |
| Wind | ||||||||
| Speed | 33km/h (21mph) | 30km/h (19mph) | 33km/h (20mph) | 32km/h (20mph) | 33km/h (21mph) | 34km/h (21mph) | 33km/h (21mph) | 30km/h (19mph) |
| Gusts | 46km/h (28mph) | 42km/h (26mph) | 45km/h (28mph) | 43km/h (27mph) | 50km/h (31mph) | 49km/h (30mph) | 47km/h (29mph) | 46km/h (29mph) |
| Direction | 101° E | 108° ESE | 107° ESE | 97° E | 97° E | 92° E | 96° E | 101° E |
| Wind chill | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (78°F) | 25°C (77°F) | 25°C (78°F) | 25°C (78°F) | 25°C (78°F) |
| Waves | ||||||||
| Height | 2.0m (6.7ft) | 2.0m (6.5ft) | 2.0m (6.4ft) | 2.0m (6.6ft) | 2.1m (6.8ft) | 2.1m (6.9ft) | 2.1m (6.9ft) | 2.1m (6.8ft) |
| Direction | 94° E | 95° E | 100° E | 101° E | 100° E | 99° E | 99° E | 99° E |
| Period | 13.1 sec. | 14.8 sec. | 14.4 sec. | 14.1 sec. | 13.6 sec. | 13.5 sec. | 13.3 sec. | 13.1 sec. |
| Significant height | 1.3m (4.3ft) | 1.3m (4.3ft) | 1.3m (4.3ft) | 1.3m (4.3ft) | 1.4m (4.6ft) | 1.5m (4.9ft) | 1.4m (4.6ft) | 1.3m (4.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 27°C (81°F) |
Sea weather on Friday 19 December 2025
On Friday 19 December 2025, the sun will rise at 05:34 and will set at 18:57 on the beach(es) of Saint-Denis. The outside temperature will be a high of 79°F t and a low of 77°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 19.3mph km/h (with gusts up to 26.7mph). 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 | 25°C (78°F) | 25°C (77°F) | 25°C (77°F) | 26°C (78°F) | 25°C (77°F) | 25°C (78°F) | 26°C (78°F) | 26°C (78°F) |
| Perceived temperature | 27°C (81°F) | 27°C (81°F) | 27°C (80°F) | 27°C (81°F) | 27°C (80°F) | 27°C (81°F) | 28°C (82°F) | 28°C (82°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 76% | 76% | 74% | 72% | 74% | 75% | 77% | 78% |
| Barometric pressure | 1018 hPa | 1016 hPa | 1017 hPa | 1018 hPa | 1017 hPa | 1015 hPa | 1015 hPa | 1016 hPa |
| Cloud cover | 74% | 25% | 3% | 85% | 79% | 83% | 19% | 15% |
| Heat index | 27°C (81°F) | 27°C (81°F) | 27°C (80°F) | 27°C (81°F) | 27°C (80°F) | 27°C (81°F) | 28°C (82°F) | 28°C (82°F) |
| Dew point | 21°C (70°F) | 21°C (69°F) | 20°C (68°F) | 20°C (69°F) | 20°C (68°F) | 21°C (69°F) | 21°C (70°F) | 21°C (70°F) |
| Wind | ||||||||
| Speed | 30km/h (19mph) | 31km/h (19mph) | 26km/h (16mph) | 23km/h (15mph) | 24km/h (15mph) | 27km/h (17mph) | 26km/h (16mph) | 25km/h (16mph) |
| Gusts | 41km/h (25mph) | 43km/h (26mph) | 37km/h (23mph) | 31km/h (19mph) | 36km/h (22mph) | 40km/h (25mph) | 37km/h (23mph) | 35km/h (22mph) |
| Direction | 100° E | 97° E | 112° ESE | 102° ESE | 86° E | 84° E | 90° E | 103° ESE |
| Wind chill | 25°C (78°F) | 25°C (77°F) | 25°C (77°F) | 26°C (78°F) | 25°C (77°F) | 25°C (78°F) | 26°C (78°F) | 26°C (78°F) |
| Waves | ||||||||
| Height | 2.0m (6.7ft) | 2.0m (6.5ft) | 2.0m (6.6ft) | 1.9m (6.3ft) | 1.9m (6.3ft) | 1.8m (6.0ft) | 1.8m (5.9ft) | 1.8m (5.9ft) |
| Direction | 97° E | 95° E | 96° E | 95° E | 95° E | 95° E | 94° E | 95° E |
| Period | 12.9 sec. | 12.9 sec. | 13.1 sec. | 13.1 sec. | 13.0 sec. | 11.5 sec. | 10.7 sec. | 12.1 sec. |
| Significant height | 1.2m (3.9ft) | 1.1m (3.6ft) | 1.1m (3.6ft) | 1.1m (3.6ft) | 1.3m (4.3ft) | 1.1m (3.6ft) | 1.0m (3.3ft) | 1.1m (3.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 27°C (81°F) |
Sea weather on Saturday 20 December 2025
On Saturday 20 December 2025, the sun will rise at 05:34 and will set at 18:58 on the beach(es) of Saint-Denis. The outside temperature will be a high of 79°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 14.9mph km/h (with gusts up to 19.9mph). Wave height will be up to 6.2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | |  |  | | | | | |
| Outside temperature | 25°C (78°F) | 25°C (77°F) | 25°C (78°F) | 26°C (78°F) | 24°C (75°F) | 24°C (74°F) | 25°C (77°F) | 26°C (78°F) |
| Perceived temperature | 27°C (81°F) | 27°C (81°F) | 27°C (81°F) | 28°C (82°F) | 26°C (78°F) | 26°C (78°F) | 27°C (80°F) | 28°C (82°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 76% | 75% | 74% | 74% | 74% | 72% | 72% | 76% |
| Barometric pressure | 1016 hPa | 1015 hPa | 1015 hPa | 1015 hPa | 1014 hPa | 1013 hPa | 1013 hPa | 1014 hPa |
| Cloud cover | 16% | 13% | 11% | 7% | 5% | 3% | 1% | 9% |
| Heat index | 27°C (81°F) | 27°C (81°F) | 27°C (81°F) | 28°C (82°F) | 26°C (78°F) | 26°C (78°F) | 27°C (80°F) | 28°C (82°F) |
| Dew point | 21°C (70°F) | 20°C (69°F) | 20°C (69°F) | 21°C (69°F) | 19°C (66°F) | 18°C (65°F) | 20°C (67°F) | 21°C (70°F) |
| Wind | ||||||||
| Speed | 22km/h (13mph) | 21km/h (13mph) | 24km/h (15mph) | 22km/h (13mph) | 21km/h (13mph) | 18km/h (11mph) | 16km/h (10mph) | 21km/h (13mph) |
| Gusts | 30km/h (19mph) | 30km/h (19mph) | 32km/h (20mph) | 28km/h (18mph) | 24km/h (15mph) | 28km/h (17mph) | 26km/h (16mph) | 30km/h (19mph) |
| Direction | 103° ESE | 96° E | 93° E | 84° E | 72° ENE | 70° ENE | 79° E | 92° E |
| Wind chill | 25°C (78°F) | 25°C (77°F) | 25°C (78°F) | 26°C (78°F) | 24°C (75°F) | 24°C (74°F) | 25°C (77°F) | 26°C (78°F) |
| Waves | ||||||||
| Height | 1.9m (6.2ft) | 1.9m (6.2ft) | 1.8m (5.9ft) | 1.8m (5.9ft) | 1.7m (5.6ft) | 1.7m (5.6ft) | 1.6m (5.2ft) | 1.6m (5.2ft) |
| Direction | 96° E | 96° E | 95° E | 95° E | 95° E | 96° E | 97° E | 97° E |
| Period | 12.8 sec. | 12.8 sec. | 12.8 sec. | 12.6 sec. | 12.4 sec. | 12.2 sec. | 14.7 sec. | 15.4 sec. |
| Significant height | 1.1m (3.6ft) | 1.1m (3.6ft) | 1.1m (3.6ft) | 0.9m (3ft) | 1.1m (3.6ft) | 1.1m (3.6ft) | 1.1m (3.6ft) | 1.1m (3.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 27°C (81°F) |
Sea weather on Sunday 21 December 2025
On Sunday 21 December 2025, the sun will rise at 05:34 and will set at 18:58 on the beach(es) of Saint-Denis. The outside temperature will be a high of 79°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 14.9mph km/h (with gusts up to 21.8mph). Wave height will be up to 5.2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 25°C (78°F) | 25°C (77°F) | 25°C (77°F) | 26°C (78°F) | 24°C (75°F) | 24°C (75°F) | 25°C (77°F) | 26°C (78°F) |
| Perceived temperature | 27°C (81°F) | 27°C (80°F) | 27°C (81°F) | 28°C (82°F) | 26°C (79°F) | 26°C (78°F) | 27°C (81°F) | 28°C (82°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 77% | 78% | 78% | 76% | 73% | 74% | 77% | 76% |
| Barometric pressure | 1014 hPa | 1013 hPa | 1014 hPa | 1014 hPa | 1014 hPa | 1013 hPa | 1014 hPa | 1015 hPa |
| Cloud cover | 16% | 24% | 30% | 23% | 9% | 7% | 12% | 10% |
| Heat index | 27°C (81°F) | 27°C (80°F) | 27°C (81°F) | 28°C (82°F) | 26°C (79°F) | 26°C (78°F) | 27°C (81°F) | 28°C (82°F) |
| Dew point | 21°C (70°F) | 21°C (69°F) | 21°C (70°F) | 21°C (70°F) | 19°C (66°F) | 19°C (66°F) | 21°C (69°F) | 21°C (70°F) |
| Wind | ||||||||
| Speed | 23km/h (15mph) | 18km/h (11mph) | 18km/h (11mph) | 20km/h (13mph) | 23km/h (14mph) | 23km/h (15mph) | 22km/h (14mph) | 24km/h (15mph) |
| Gusts | 32km/h (20mph) | 26km/h (16mph) | 25km/h (16mph) | 27km/h (17mph) | 30km/h (18mph) | 27km/h (17mph) | 30km/h (19mph) | 35km/h (21mph) |
| Direction | 100° E | 96° E | 94° E | 82° E | 77° ENE | 80° E | 88° E | 95° E |
| Wind chill | 25°C (78°F) | 25°C (77°F) | 25°C (77°F) | 26°C (78°F) | 24°C (75°F) | 24°C (75°F) | 25°C (77°F) | 26°C (78°F) |
| Waves | ||||||||
| Height | 1.6m (5.2ft) | 1.6m (5.2ft) | 1.6m (5.2ft) | 1.6m (5.2ft) | 1.6m (5.2ft) | 1.6m (5.2ft) | 1.6m (5.2ft) | 1.6m (5.2ft) |
| Direction | 180° S | 140° SE | 181° S | 221° SW | 140° SE | 100° E | 100° E | 100° E |
| Period | 14.8 sec. | 14.4 sec. | 13.8 sec. | 13.4 sec. | 13.2 sec. | 12.9 sec. | 12.7 sec. | 12.4 sec. |
| Significant height | 1.2m (3.9ft) | 1.3m (4.3ft) | 1.3m (4.3ft) | 1.3m (4.3ft) | 1.4m (4.6ft) | 1.4m (4.6ft) | 1.4m (4.6ft) | 1.4m (4.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 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) | 27°C (81°F) |