Sea weather in Key West in Florida All the beach weather in Key West
All the essential weather information for enjoying the beach in Key West in Florida, 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 Key West over the next 7 days?
Discover the best moment to go to the beach in Key West in Florida this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Key West. 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 |
|---|---|---|---|---|
| Friday 12 December 2025 | 70°F to 74°F | 16.8mph | discouraged | all the sea weather |
| Saturday 13 December 2025 | 72°F to 76°F | 13.1mph | discouraged | all the sea weather |
| Sunday 14 December 2025 | 72°F to 74°F | 17.4mph | discouraged | all the sea weather |
| Monday 15 December 2025 | 68°F to 74°F | 22.4mph | discouraged | all the sea weather |
| Tuesday 16 December 2025 | 72°F to 74°F | 23.6mph | discouraged | all the sea weather |
| Wednesday 17 December 2025 | 72°F to 74°F | 18.6mph | discouraged | all the sea weather |
| Thursday 18 December 2025 | 74°F to 76°F | 18.6mph | discouraged | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Key West
Sea weather on Friday 12 December 2025
On Friday 12 December 2025, the sun will rise at 07:02 and will set at 17:40 on the beach(es) of Key West. The outside temperature will be a high of 74°F t and a low of 70°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 23mph). Wave height will be up to 1.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  | | |  | | | | |
| Outside temperature | 22°C (72°F) | 22°C (71°F) | 22°C (72°F) | 23°C (73°F) | 22°C (71°F) | 21°C (71°F) | 22°C (72°F) | 23°C (74°F) |
| Perceived temperature | 25°C (76°F) | 22°C (71°F) | 25°C (76°F) | 25°C (77°F) | 22°C (71°F) | 21°C (71°F) | 25°C (76°F) | 25°C (77°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 66% | 67% | 65% | 64% | 75% | 78% | 74% | 71% |
| Barometric pressure | 1018 hPa | 1017 hPa | 1018 hPa | 1019 hPa | 1019 hPa | 1017 hPa | 1018 hPa | 1019 hPa |
| Cloud cover | 31% | 58% | 19% | 49% | 41% | 35% | 35% | 17% |
| Heat index | 25°C (76°F) | 25°C (76°F) | 25°C (76°F) | 25°C (77°F) | 24°C (76°F) | 24°C (76°F) | 25°C (76°F) | 25°C (77°F) |
| Dew point | 15°C (60°F) | 15°C (60°F) | 15°C (59°F) | 16°C (60°F) | 17°C (62°F) | 17°C (63°F) | 17°C (63°F) | 18°C (64°F) |
| Wind | ||||||||
| Speed | 15km/h (9mph) | 14km/h (9mph) | 16km/h (10mph) | 19km/h (12mph) | 17km/h (11mph) | 17km/h (10mph) | 21km/h (13mph) | 27km/h (17mph) |
| Gusts | 19km/h (12mph) | 19km/h (12mph) | 21km/h (13mph) | 26km/h (16mph) | 24km/h (15mph) | 24km/h (15mph) | 31km/h (19mph) | 37km/h (23mph) |
| Direction | 42° NE | 54° NE | 80° E | 81° E | 72° ENE | 79° ENE | 76° ENE | 82° E |
| Wind chill | 22°C (72°F) | 22°C (71°F) | 22°C (72°F) | 23°C (73°F) | 22°C (71°F) | 21°C (71°F) | 22°C (72°F) | 23°C (74°F) |
| Waves | ||||||||
| Height | 0.4m (1.2ft) | 0.4m (1.3ft) | 0.4m (1.4ft) | 0.5m (1.5ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.5m (1.7ft) | 0.5m (1.7ft) |
| Direction | 308° NW | 306° NW | 306° NW | 306° NW | 301° WNW | 298° WNW | 294° WNW | 291° WNW |
| Period | 4.6 sec. | 4.8 sec. | 5.0 sec. | 5.5 sec. | 6.0 sec. | 6.1 sec. | 6.0 sec. | 5.7 sec. |
| Significant height | 0.6m (2ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.8m (2.6ft) | 0.8m (2.6ft) | 0.7m (2.3ft) | 0.9m (3ft) | 0.8m (2.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) |
Sea weather on Saturday 13 December 2025
On Saturday 13 December 2025, the sun will rise at 07:03 and will set at 17:41 on the beach(es) of Key West. The outside temperature will be a high of 76°F t and a low of 72°F. Precipitation is in the forecast (0.2in 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 19.3mph km/h (with gusts up to 28mph). Wave height will be up to 2.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  | | |  | | | |  |
| Outside temperature | 23°C (74°F) | 23°C (73°F) | 23°C (73°F) | 24°C (74°F) | 23°C (74°F) | 23°C (74°F) | 23°C (74°F) | 22°C (72°F) |
| Perceived temperature | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 26°C (78°F) | 25°C (78°F) | 25°C (78°F) | 25°C (78°F) | 25°C (77°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0.2in |
| Humidity | 70% | 75% | 81% | 80% | 81% | 82% | 84% | 91% |
| Barometric pressure | 1019 hPa | 1019 hPa | 1019 hPa | 1020 hPa | 1019 hPa | 1016 hPa | 1017 hPa | 1018 hPa |
| Cloud cover | 63% | 80% | 70% | 100% | 91% | 52% | 54% | 81% |
| Heat index | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 26°C (78°F) | 25°C (78°F) | 25°C (78°F) | 25°C (78°F) | 25°C (77°F) |
| Dew point | 17°C (63°F) | 18°C (65°F) | 20°C (67°F) | 20°C (68°F) | 20°C (68°F) | 20°C (68°F) | 21°C (69°F) | 21°C (70°F) |
| Wind | ||||||||
| Speed | 22km/h (13mph) | 22km/h (13mph) | 24km/h (15mph) | 27km/h (17mph) | 31km/h (19mph) | 31km/h (19mph) | 29km/h (18mph) | 21km/h (13mph) |
| Gusts | 29km/h (18mph) | 29km/h (18mph) | 32km/h (20mph) | 37km/h (23mph) | 44km/h (28mph) | 45km/h (28mph) | 45km/h (28mph) | 29km/h (18mph) |
| Direction | 75° ENE | 75° ENE | 61° ENE | 68° ENE | 69° ENE | 79° E | 79° ENE | 107° ESE |
| Wind chill | 23°C (74°F) | 23°C (73°F) | 23°C (73°F) | 24°C (74°F) | 23°C (74°F) | 23°C (74°F) | 23°C (74°F) | 22°C (72°F) |
| Waves | ||||||||
| Height | 0.5m (1.6ft) | 0.5m (1.5ft) | 0.4m (1.4ft) | 0.6m (1.9ft) | 0.7m (2.2ft) | 0.7m (2.3ft) | 0.6m (2.1ft) | 0.5m (1.5ft) |
| Direction | 296° WNW | 296° WNW | 68° ENE | 58° ENE | 58° ENE | 58° ENE | 69° ENE | 71° ENE |
| Period | 5.6 sec. | 5.5 sec. | 5.3 sec. | 5.2 sec. | 5.1 sec. | 4.9 sec. | 4.8 sec. | 4.6 sec. |
| Significant height | 0.8m (2.6ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.9m (3ft) | 1.0m (3.3ft) | 1.0m (3.3ft) | 1.0m (3.3ft) | 0.7m (2.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 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 (73°F) | 23°C (73°F) |
Sea weather on Sunday 14 December 2025
On Sunday 14 December 2025, the sun will rise at 07:03 and will set at 17:41 on the beach(es) of Key West. The outside temperature will be a high of 74°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 17.4mph km/h (with gusts up to 23mph). Wave height will be up to 1.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 22°C (71°F) | 22°C (72°F) | 23°C (73°F) | 23°C (74°F) | 23°C (73°F) | 22°C (72°F) | 22°C (72°F) | 23°C (73°F) |
| Perceived temperature | 22°C (71°F) | 25°C (76°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (76°F) | 25°C (76°F) | 25°C (77°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 89% | 86% | 82% | 80% | 81% | 78% | 82% | 79% |
| Barometric pressure | 1018 hPa | 1017 hPa | 1017 hPa | 1018 hPa | 1018 hPa | 1017 hPa | 1018 hPa | 1019 hPa |
| Cloud cover | 87% | 80% | 40% | 15% | 20% | 11% | 15% | 13% |
| Heat index | 24°C (76°F) | 25°C (76°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (76°F) | 25°C (76°F) | 25°C (77°F) |
| Dew point | 20°C (68°F) | 20°C (67°F) | 20°C (67°F) | 20°C (67°F) | 19°C (67°F) | 18°C (65°F) | 19°C (66°F) | 19°C (66°F) |
| Wind | ||||||||
| Speed | 9km/h (5mph) | 13km/h (8mph) | 14km/h (9mph) | 10km/h (6mph) | 12km/h (8mph) | 17km/h (11mph) | 23km/h (14mph) | 28km/h (17mph) |
| Gusts | 18km/h (11mph) | 17km/h (11mph) | 19km/h (12mph) | 13km/h (8mph) | 18km/h (11mph) | 27km/h (17mph) | 36km/h (23mph) | 37km/h (23mph) |
| Direction | 196° SSW | 69° ENE | 70° ENE | 47° NE | 10° N | 351° N | 345° NNW | 351° N |
| Wind chill | 22°C (71°F) | 22°C (72°F) | 23°C (73°F) | 23°C (74°F) | 23°C (73°F) | 22°C (72°F) | 22°C (72°F) | 23°C (73°F) |
| Waves | ||||||||
| Height | 0.3m (1.1ft) | 0.2m (0.7ft) | 0.2m (0.8ft) | 0.2m (0.8ft) | 0.2m (0.5ft) | 0.2m (0.6ft) | 0.3m (0.9ft) | 0.5m (1.5ft) |
| Direction | 71° ENE | 59° ENE | 67° ENE | 77° ENE | 70° ENE | 33° NNE | 9° N | 353° N |
| Period | 3.5 sec. | 3.0 sec. | 4.2 sec. | 4.2 sec. | 2.3 sec. | 2.3 sec. | 2.3 sec. | 2.3 sec. |
| Significant height | 0.4m (1.3ft) | 0.2m (0.7ft) | 0.6m (2ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.8m (2.6ft) | 1.0m (3.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) |
Sea weather on Monday 15 December 2025
On Monday 15 December 2025, the sun will rise at 07:04 and will set at 17:41 on the beach(es) of Key West. The outside temperature will be a high of 74°F t and a low of 68°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 24.2mph km/h (with gusts up to 31.1mph). Wave height will be up to 3.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | |  | | | | | |
| Outside temperature | 23°C (73°F) | 23°C (73°F) | 22°C (71°F) | 21°C (70°F) | 21°C (70°F) | 23°C (73°F) | 22°C (72°F) | 22°C (72°F) |
| Perceived temperature | 25°C (77°F) | 25°C (77°F) | 22°C (71°F) | 21°C (70°F) | 21°C (70°F) | 25°C (77°F) | 25°C (76°F) | 25°C (76°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 80% | 76% | 79% | 82% | 76% | 74% | 76% | 79% |
| Barometric pressure | 1018 hPa | 1018 hPa | 1019 hPa | 1021 hPa | 1021 hPa | 1019 hPa | 1019 hPa | 1020 hPa |
| Cloud cover | 85% | 73% | 0% | 5% | 11% | 52% | 63% | 82% |
| Heat index | 25°C (77°F) | 25°C (77°F) | 24°C (76°F) | 21°C (70°F) | 24°C (76°F) | 25°C (77°F) | 25°C (76°F) | 25°C (76°F) |
| Dew point | 19°C (66°F) | 19°C (65°F) | 18°C (64°F) | 18°C (64°F) | 17°C (62°F) | 18°C (64°F) | 18°C (64°F) | 18°C (65°F) |
| Wind | ||||||||
| Speed | 28km/h (18mph) | 26km/h (16mph) | 39km/h (24mph) | 38km/h (24mph) | 32km/h (20mph) | 27km/h (17mph) | 35km/h (22mph) | 36km/h (22mph) |
| Gusts | 38km/h (24mph) | 34km/h (21mph) | 50km/h (31mph) | 48km/h (30mph) | 47km/h (29mph) | 39km/h (24mph) | 50km/h (31mph) | 47km/h (29mph) |
| Direction | 4° N | 35° NE | 38° NE | 39° NE | 43° NE | 58° ENE | 58° ENE | 59° ENE |
| Wind chill | 23°C (73°F) | 23°C (73°F) | 22°C (71°F) | 21°C (70°F) | 21°C (70°F) | 23°C (73°F) | 22°C (72°F) | 22°C (72°F) |
| Waves | ||||||||
| Height | 0.6m (2.1ft) | 0.7m (2.4ft) | 1.1m (3.5ft) | 1.2m (3.9ft) | 1.1m (3.6ft) | 1.0m (3.1ft) | 1.0m (3.3ft) | 1.1m (3.5ft) |
| Direction | 353° N | 7° N | 10° N | 6° N | 4° N | 41° NE | 40° NE | 38° NE |
| Period | 2.3 sec. | 2.3 sec. | 2.3 sec. | 6.6 sec. | 5.8 sec. | 5.4 sec. | 6.3 sec. | 7.6 sec. |
| Significant height | 0.9m (3ft) | 1.2m (3.9ft) | 1.5m (4.9ft) | 1.4m (4.6ft) | 1.4m (4.6ft) | 1.5m (4.9ft) | 1.4m (4.6ft) | 1.4m (4.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) |
Sea weather on Tuesday 16 December 2025
On Tuesday 16 December 2025, the sun will rise at 07:04 and will set at 17:42 on the beach(es) of Key West. The outside temperature will be a high of 74°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 24.9mph km/h (with gusts up to 35.4mph). Wave height will be up to 4.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 22°C (72°F) | 22°C (71°F) | 22°C (71°F) | 22°C (72°F) | 22°C (72°F) | 22°C (72°F) | 22°C (72°F) | 23°C (73°F) |
| Perceived temperature | 25°C (76°F) | 22°C (71°F) | 22°C (71°F) | 25°C (76°F) | 25°C (76°F) | 25°C (76°F) | 25°C (76°F) | 25°C (77°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 79% | 80% | 81% | 78% | 76% | 75% | 74% | 72% |
| Barometric pressure | 1020 hPa | 1019 hPa | 1019 hPa | 1021 hPa | 1021 hPa | 1019 hPa | 1020 hPa | 1021 hPa |
| Cloud cover | 81% | 75% | 77% | 59% | 70% | 67% | 63% | 50% |
| Heat index | 25°C (76°F) | 24°C (76°F) | 24°C (76°F) | 25°C (76°F) | 25°C (76°F) | 25°C (76°F) | 25°C (76°F) | 25°C (77°F) |
| Dew point | 18°C (65°F) | 18°C (65°F) | 18°C (65°F) | 18°C (65°F) | 18°C (64°F) | 18°C (64°F) | 17°C (63°F) | 17°C (63°F) |
| Wind | ||||||||
| Speed | 33km/h (21mph) | 31km/h (19mph) | 32km/h (20mph) | 34km/h (21mph) | 35km/h (22mph) | 36km/h (22mph) | 40km/h (25mph) | 38km/h (23mph) |
| Gusts | 43km/h (27mph) | 40km/h (25mph) | 41km/h (26mph) | 44km/h (28mph) | 48km/h (30mph) | 50km/h (31mph) | 57km/h (36mph) | 51km/h (32mph) |
| Direction | 59° ENE | 54° NE | 53° NE | 61° ENE | 62° ENE | 65° ENE | 70° ENE | 75° ENE |
| Wind chill | 22°C (72°F) | 22°C (71°F) | 22°C (71°F) | 22°C (72°F) | 22°C (72°F) | 22°C (72°F) | 22°C (72°F) | 23°C (73°F) |
| Waves | ||||||||
| Height | 1.0m (3.3ft) | 0.9m (3.0ft) | 0.9m (3.1ft) | 0.8m (2.8ft) | 0.7m (2.3ft) | 0.6m (1.8ft) | 0.5m (1.6ft) | 1.3m (4.2ft) |
| Direction | 38° NE | 34° NNE | 36° NE | 34° NE | 34° NE | 18° NNE | 41° NE | 92° E |
| Period | 7.3 sec. | 7.3 sec. | 7.1 sec. | 6.8 sec. | 6.5 sec. | 6.3 sec. | 5.9 sec. | 6.2 sec. |
| Significant height | 1.2m (3.9ft) | 1.1m (3.6ft) | 1.2m (3.9ft) | 1.1m (3.6ft) | 0.9m (3ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 1.1m (3.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) |
Sea weather on Wednesday 17 December 2025
On Wednesday 17 December 2025, the sun will rise at 07:05 and will set at 17:42 on the beach(es) of Key West. The outside temperature will be a high of 74°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 22.4mph km/h (with gusts up to 29.8mph). Wave height will be up to 3.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | |  | | | | |
| Outside temperature | 23°C (73°F) | 23°C (73°F) | 22°C (72°F) | 22°C (72°F) | 23°C (73°F) | 23°C (73°F) | 22°C (72°F) | 23°C (74°F) |
| Perceived temperature | 25°C (77°F) | 25°C (77°F) | 25°C (76°F) | 25°C (76°F) | 25°C (77°F) | 25°C (77°F) | 25°C (76°F) | 25°C (77°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 69% | 67% | 67% | 70% | 69% | 67% | 68% | 70% |
| Barometric pressure | 1021 hPa | 1020 hPa | 1020 hPa | 1021 hPa | 1020 hPa | 1019 hPa | 1019 hPa | 1021 hPa |
| Cloud cover | 42% | 71% | 20% | 22% | 48% | 28% | 13% | 11% |
| Heat index | 25°C (77°F) | 25°C (77°F) | 25°C (76°F) | 25°C (76°F) | 25°C (77°F) | 25°C (77°F) | 25°C (76°F) | 25°C (77°F) |
| Dew point | 17°C (62°F) | 16°C (61°F) | 16°C (61°F) | 17°C (62°F) | 17°C (62°F) | 16°C (61°F) | 16°C (61°F) | 17°C (63°F) |
| Wind | ||||||||
| Speed | 36km/h (23mph) | 31km/h (19mph) | 30km/h (18mph) | 29km/h (18mph) | 27km/h (17mph) | 28km/h (17mph) | 29km/h (18mph) | 30km/h (19mph) |
| Gusts | 48km/h (30mph) | 40km/h (25mph) | 39km/h (24mph) | 38km/h (23mph) | 37km/h (23mph) | 43km/h (27mph) | 35km/h (22mph) | 38km/h (24mph) |
| Direction | 81° E | 76° ENE | 66° ENE | 64° ENE | 74° ENE | 79° ENE | 79° ENE | 78° ENE |
| Wind chill | 23°C (73°F) | 23°C (73°F) | 22°C (72°F) | 22°C (72°F) | 23°C (73°F) | 23°C (73°F) | 22°C (72°F) | 23°C (74°F) |
| Waves | ||||||||
| Height | 1.2m (4.0ft) | 1.2m (3.8ft) | 1.1m (3.7ft) | 1.1m (3.6ft) | 1.1m (3.6ft) | 1.1m (3.6ft) | 1.1m (3.6ft) | 1.1m (3.6ft) |
| Direction | 95° E | 98° E | 101° ESE | 105° ESE | 108° ESE | 110° ESE | 110° ESE | 109° ESE |
| Period | 6.2 sec. | 5.8 sec. | 5.5 sec. | 5.1 sec. | 5.0 sec. | 5.0 sec. | 4.7 sec. | 4.6 sec. |
| Significant height | 1.0m (3.3ft) | 0.9m (3ft) | 0.9m (3ft) | 0.9m (3ft) | 0.9m (3ft) | 1.0m (3.3ft) | 1.1m (3.6ft) | 1.0m (3.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) |
Sea weather on Thursday 18 December 2025
On Thursday 18 December 2025, the sun will rise at 07:05 and will set at 17:43 on the beach(es) of Key West. The outside temperature will be a high of 76°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 18.6mph km/h (with gusts up to 28mph). Wave height will be up to 3.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 24°C (74°F) | 24°C (75°F) | 24°C (74°F) | 23°C (74°F) | 23°C (74°F) | 23°C (74°F) | 24°C (74°F) | 24°C (75°F) |
| Perceived temperature | 25°C (78°F) | 26°C (78°F) | 26°C (78°F) | 25°C (78°F) | 25°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (79°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 72% | 75% | 79% | 81% | 83% | 84% | 84% | 85% |
| Barometric pressure | 1020 hPa | 1019 hPa | 1019 hPa | 1021 hPa | 1020 hPa | 1018 hPa | 1018 hPa | 1019 hPa |
| Cloud cover | 33% | 65% | 48% | 26% | 28% | 26% | 38% | 42% |
| Heat index | 25°C (78°F) | 26°C (78°F) | 26°C (78°F) | 25°C (78°F) | 25°C (78°F) | 26°C (78°F) | 26°C (78°F) | 26°C (79°F) |
| Dew point | 18°C (65°F) | 19°C (66°F) | 20°C (67°F) | 20°C (68°F) | 20°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (70°F) |
| Wind | ||||||||
| Speed | 29km/h (18mph) | 27km/h (17mph) | 28km/h (17mph) | 29km/h (18mph) | 28km/h (17mph) | 28km/h (17mph) | 28km/h (17mph) | 30km/h (18mph) |
| Gusts | 40km/h (25mph) | 37km/h (23mph) | 38km/h (24mph) | 40km/h (25mph) | 41km/h (26mph) | 33km/h (20mph) | 40km/h (25mph) | 45km/h (28mph) |
| Direction | 82° E | 75° ENE | 58° ENE | 56° NE | 60° ENE | 69° ENE | 72° ENE | 71° ENE |
| Wind chill | 24°C (74°F) | 24°C (75°F) | 24°C (74°F) | 23°C (74°F) | 23°C (74°F) | 23°C (74°F) | 24°C (74°F) | 24°C (75°F) |
| Waves | ||||||||
| Height | 1.1m (3.6ft) | 1.0m (3.3ft) | 0.9m (3.0ft) | 0.9m (3.0ft) | 0.8m (2.6ft) | 0.7m (2.3ft) | 0.6m (2.0ft) | 0.6m (2.0ft) |
| Direction | 109° ESE | 109° ESE | 104° ESE | 102° ESE | 103° ESE | 103° ESE | 103° ESE | 102° ESE |
| Period | 4.4 sec. | 4.2 sec. | 4.2 sec. | 4.2 sec. | 4.2 sec. | 4.2 sec. | 4.2 sec. | 4.2 sec. |
| Significant height | 0.9m (3ft) | 0.8m (2.6ft) | 0.7m (2.3ft) | 0.9m (3ft) | 1.0m (3.3ft) | 0.9m (3ft) | 0.9m (3ft) | 0.9m (3ft) |
| Sea water temperature | ||||||||
| Water temperature | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) | 25°C (77°F) |