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 19 June 2026 | 83°F to 85°F | 7.5mph | discouraged | all the sea weather |
| Saturday 20 June 2026 | 83°F to 85°F | 6.2mph | discouraged | all the sea weather |
| Sunday 21 June 2026 | 76°F to 85°F | 6.8mph | recommended | all the sea weather |
| Monday 22 June 2026 | 77°F to 85°F | 9.3mph | recommended | all the sea weather |
| Tuesday 23 June 2026 | 83°F to 85°F | 10.6mph | discouraged | all the sea weather |
| Wednesday 24 June 2026 | 85°F to 85°F | 8.7mph | recommended | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Key West
Sea weather on Friday 19 June 2026
On Friday 19 June 2026, the sun will rise at 06:39 and will set at 20:18 on the beach(es) of Key West. The outside temperature will be a high of 85°F t and a low of 83°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 13.1mph km/h (with gusts up to 17.4mph). 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 | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 29°C (83°F) | 29°C (83°F) | 29°C (84°F) | 29°C (84°F) |
| Perceived temperature | 34°C (94°F) | 34°C (93°F) | 34°C (92°F) | 33°C (92°F) | 32°C (90°F) | 32°C (90°F) | 33°C (91°F) | 33°C (91°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 78% | 77% | 78% | 76% | 72% | 71% | 70% | 72% |
| Barometric pressure | 1017 hPa | 1016 hPa | 1017 hPa | 1018 hPa | 1018 hPa | 1017 hPa | 1016 hPa | 1017 hPa |
| Cloud cover | 23% | 45% | 65% | 62% | 57% | 25% | 19% | 17% |
| Heat index | 34°C (94°F) | 34°C (93°F) | 34°C (92°F) | 33°C (92°F) | 32°C (90°F) | 32°C (90°F) | 33°C (91°F) | 33°C (91°F) |
| Dew point | 25°C (77°F) | 24°C (76°F) | 24°C (76°F) | 24°C (75°F) | 23°C (74°F) | 23°C (73°F) | 23°C (73°F) | 23°C (74°F) |
| Wind | ||||||||
| Speed | 21km/h (13mph) | 19km/h (12mph) | 19km/h (12mph) | 17km/h (11mph) | 15km/h (9mph) | 10km/h (6mph) | 6km/h (4mph) | 12km/h (8mph) |
| Gusts | 28km/h (17mph) | 26km/h (16mph) | 26km/h (16mph) | 23km/h (15mph) | 23km/h (14mph) | 14km/h (9mph) | 9km/h (5mph) | 17km/h (11mph) |
| Direction | 139° SE | 142° SE | 138° SE | 131° SE | 130° SE | 131° SE | 82° E | 99° E |
| Wind chill | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 29°C (83°F) | 29°C (83°F) | 29°C (84°F) | 29°C (84°F) |
| Waves | ||||||||
| Height | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.4m (1.5ft) | 0.4m (1.3ft) | 0.4m (1.2ft) | 0.3m (1.0ft) | 0.2m (0.8ft) | 0.2m (0.6ft) |
| Direction | 110° ESE | 110° ESE | 113° ESE | 114° ESE | 112° ESE | 107° ESE | 104° ESE | 100° E |
| Period | 5.5 sec. | 5.4 sec. | 4.4 sec. | 3.3 sec. | 3.5 sec. | 3.7 sec. | 3.6 sec. | 3.5 sec. |
| Significant height | 0.6m (2ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.3m (1ft) | 0.3m (1ft) | 0.2m (0.7ft) | 0.3m (1ft) |
| Sea water temperature | ||||||||
| Water temperature | 28°C (83°F) | 28°C (83°F) | 28°C (83°F) | 28°C (83°F) | 28°C (83°F) | 28°C (83°F) | 28°C (83°F) | 28°C (83°F) |
Sea weather on Saturday 20 June 2026
On Saturday 20 June 2026, the sun will rise at 06:39 and will set at 20:18 on the beach(es) of Key West. The outside temperature will be a high of 85°F t and a low of 83°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 13.1mph km/h (with gusts up to 16.8mph). Wave height will be up to 1.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | |  |
| Outside temperature | 29°C (84°F) | 29°C (84°F) | 29°C (83°F) | 29°C (84°F) | 28°C (83°F) | 28°C (83°F) | 28°C (82°F) | 28°C (83°F) |
| Perceived temperature | 34°C (92°F) | 33°C (91°F) | 32°C (90°F) | 32°C (90°F) | 32°C (90°F) | 32°C (90°F) | 31°C (87°F) | 32°C (89°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 74% | 71% | 71% | 72% | 75% | 73% | 72% | 75% |
| Barometric pressure | 1017 hPa | 1015 hPa | 1015 hPa | 1017 hPa | 1017 hPa | 1015 hPa | 1014 hPa | 1017 hPa |
| Cloud cover | 35% | 48% | 46% | 53% | 79% | 37% | 3% | 80% |
| Heat index | 34°C (92°F) | 33°C (91°F) | 32°C (90°F) | 32°C (90°F) | 32°C (90°F) | 32°C (90°F) | 31°C (87°F) | 32°C (89°F) |
| Dew point | 24°C (75°F) | 23°C (73°F) | 23°C (73°F) | 23°C (74°F) | 23°C (74°F) | 23°C (74°F) | 22°C (72°F) | 23°C (74°F) |
| Wind | ||||||||
| Speed | 18km/h (11mph) | 19km/h (12mph) | 21km/h (13mph) | 16km/h (10mph) | 14km/h (9mph) | 9km/h (5mph) | 5km/h (3mph) | 10km/h (6mph) |
| Gusts | 24km/h (15mph) | 26km/h (16mph) | 27km/h (17mph) | 22km/h (14mph) | 21km/h (13mph) | 12km/h (8mph) | 9km/h (5mph) | 15km/h (9mph) |
| Direction | 119° ESE | 124° ESE | 137° SE | 141° SE | 163° SSE | 186° S | 241° WSW | 16° NNE |
| Wind chill | 29°C (84°F) | 29°C (84°F) | 29°C (83°F) | 29°C (84°F) | 28°C (83°F) | 28°C (83°F) | 28°C (82°F) | 28°C (83°F) |
| Waves | ||||||||
| Height | 0.2m (0.7ft) | 0.2m (0.8ft) | 0.4m (1.3ft) | 0.4m (1.4ft) | 0.4m (1.3ft) | 0.4m (1.2ft) | 0.3m (1.0ft) | 0.3m (0.9ft) |
| Direction | 99° E | 109° ESE | 119° ESE | 118° ESE | 118° ESE | 116° ESE | 113° ESE | 108° ESE |
| Period | 4.7 sec. | 4.8 sec. | 4.8 sec. | 4.8 sec. | 4.8 sec. | 3.9 sec. | 3.8 sec. | 3.8 sec. |
| Significant height | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.3m (1ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.4m (1.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 28°C (83°F) | 28°C (83°F) | 28°C (83°F) | 28°C (83°F) | 28°C (83°F) | 28°C (83°F) | 28°C (83°F) | 28°C (83°F) |
Sea weather on Sunday 21 June 2026
On Sunday 21 June 2026, the sun will rise at 06:39 and will set at 20:19 on the beach(es) of Key West. The outside temperature will be a high of 85°F t and a low of 76°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 13.1mph). Wave height will be up to 0.7ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 29°C (84°F) | 29°C (83°F) | 29°C (83°F) | 29°C (83°F) | 25°C (77°F) | 27°C (80°F) | 28°C (83°F) | 29°C (84°F) |
| Perceived temperature | 33°C (91°F) | 33°C (91°F) | 32°C (89°F) | 32°C (90°F) | 26°C (79°F) | 28°C (83°F) | 31°C (88°F) | 32°C (90°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 74% | 73% | 71% | 70% | 67% | 67% | 67% | 68% |
| Barometric pressure | 1016 hPa | 1014 hPa | 1014 hPa | 1016 hPa | 1017 hPa | 1016 hPa | 1016 hPa | 1018 hPa |
| Cloud cover | 35% | 31% | 12% | 13% | 12% | 9% | 7% | 5% |
| Heat index | 33°C (91°F) | 33°C (91°F) | 32°C (89°F) | 32°C (90°F) | 26°C (79°F) | 28°C (83°F) | 31°C (88°F) | 32°C (90°F) |
| Dew point | 24°C (75°F) | 23°C (74°F) | 23°C (73°F) | 23°C (73°F) | 18°C (65°F) | 20°C (68°F) | 21°C (71°F) | 22°C (72°F) |
| Wind | ||||||||
| Speed | 13km/h (8mph) | 16km/h (10mph) | 15km/h (10mph) | 12km/h (7mph) | 5km/h (3mph) | 6km/h (4mph) | 10km/h (6mph) | 11km/h (7mph) |
| Gusts | 18km/h (11mph) | 21km/h (13mph) | 21km/h (13mph) | 16km/h (10mph) | 10km/h (6mph) | 13km/h (8mph) | 16km/h (10mph) | 16km/h (10mph) |
| Direction | 62° ENE | 135° SE | 155° SSE | 176° S | 206° SSW | 289° WNW | 340° NNW | 28° NNE |
| Wind chill | 29°C (84°F) | 29°C (83°F) | 29°C (83°F) | 29°C (83°F) | 25°C (77°F) | 27°C (80°F) | 28°C (83°F) | 29°C (84°F) |
| Waves | ||||||||
| Height | 0.2m (0.7ft) | 0.2m (0.7ft) | 0.2m (0.8ft) | 0.2m (0.8ft) | 0.2m (0.7ft) | 0.2m (0.6ft) | 0.1m (0.5ft) | 0.1m (0.5ft) |
| Direction | 104° ESE | 102° ESE | 120° ESE | 113° ESE | 101° ESE | 96° E | 93° E | 94° E |
| Period | 3.7 sec. | 3.7 sec. | 5.4 sec. | 5.0 sec. | 3.0 sec. | 3.1 sec. | 2.9 sec. | 2.9 sec. |
| Significant height | 0.3m (1ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.3m (1ft) | 0.3m (1ft) | 0.2m (0.7ft) | 0.3m (1ft) | 0.3m (1ft) |
| Sea water temperature | ||||||||
| Water temperature | 30°C (86°F) | 30°C (86°F) | 30°C (86°F) | 30°C (86°F) | 30°C (86°F) | 30°C (86°F) | 30°C (86°F) | 30°C (86°F) |
Sea weather on Monday 22 June 2026
On Monday 22 June 2026, the sun will rise at 06:39 and will set at 20:19 on the beach(es) of Key West. The outside temperature will be a high of 85°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 9.3mph km/h (with gusts up to 13.1mph). Wave height will be up to 0.7ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 25°C (77°F) | 29°C (84°F) | 28°C (83°F) | 29°C (85°F) |
| Perceived temperature | 32°C (90°F) | 32°C (89°F) | 32°C (90°F) | 32°C (90°F) | 27°C (80°F) | 32°C (89°F) | 31°C (88°F) | 34°C (92°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 67% | 67% | 69% | 69% | 66% | 66% | 67% | 71% |
| Barometric pressure | 1017 hPa | 1017 hPa | 1017 hPa | 1018 hPa | 1019 hPa | 1019 hPa | 1018 hPa | 1019 hPa |
| Cloud cover | 5% | 10% | 13% | 15% | 4% | 21% | 8% | 13% |
| Heat index | 32°C (90°F) | 32°C (89°F) | 32°C (90°F) | 32°C (90°F) | 27°C (80°F) | 32°C (89°F) | 31°C (88°F) | 34°C (92°F) |
| Dew point | 22°C (72°F) | 22°C (72°F) | 22°C (72°F) | 23°C (73°F) | 18°C (65°F) | 22°C (71°F) | 22°C (71°F) | 23°C (74°F) |
| Wind | ||||||||
| Speed | 7km/h (4mph) | 6km/h (4mph) | 9km/h (5mph) | 11km/h (7mph) | 9km/h (6mph) | 9km/h (6mph) | 8km/h (5mph) | 15km/h (9mph) |
| Gusts | 10km/h (6mph) | 8km/h (5mph) | 12km/h (7mph) | 15km/h (9mph) | 19km/h (12mph) | 14km/h (9mph) | 12km/h (8mph) | 21km/h (13mph) |
| Direction | 96° E | 121° ESE | 102° ESE | 115° ESE | 110° ESE | 78° ENE | 68° ENE | 88° E |
| Wind chill | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 25°C (77°F) | 29°C (84°F) | 28°C (83°F) | 29°C (85°F) |
| Waves | ||||||||
| Height | 0.1m (0.4ft) | 0.1m (0.4ft) | 0.2m (0.6ft) | 0.2m (0.6ft) | 0.2m (0.5ft) | 0.2m (0.6ft) | 0.2m (0.5ft) | 0.2m (0.6ft) |
| Direction | 89° E | 101° E | 120° ESE | 111° ESE | 106° ESE | 102° ESE | 102° ESE | 105° ESE |
| Period | 2.8 sec. | 2.8 sec. | 2.8 sec. | 2.8 sec. | 2.8 sec. | 2.8 sec. | 2.8 sec. | 2.8 sec. |
| Significant height | 0.2m (0.7ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.3m (1ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.3m (1ft) | 0.4m (1.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 28°C (83°F) | 28°C (83°F) | 28°C (83°F) | 28°C (83°F) | 28°C (83°F) | 28°C (83°F) | 28°C (83°F) | 28°C (83°F) |
Sea weather on Tuesday 23 June 2026
On Tuesday 23 June 2026, the sun will rise at 06:39 and will set at 20:19 on the beach(es) of Key West. The outside temperature will be a high of 85°F t and a low of 83°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 2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | |  |  |
| Outside temperature | 29°C (85°F) | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 28°C (82°F) | 29°C (83°F) | 29°C (84°F) |
| Perceived temperature | 34°C (93°F) | 34°C (93°F) | 33°C (91°F) | 33°C (91°F) | 32°C (90°F) | 31°C (87°F) | 32°C (89°F) | 33°C (92°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 72% | 75% | 72% | 68% | 68% | 67% | 67% | 70% |
| Barometric pressure | 1019 hPa | 1018 hPa | 1019 hPa | 1020 hPa | 1020 hPa | 1019 hPa | 1019 hPa | 1019 hPa |
| Cloud cover | 31% | 62% | 62% | 40% | 36% | 15% | 5% | 26% |
| Heat index | 34°C (93°F) | 34°C (93°F) | 33°C (91°F) | 33°C (91°F) | 32°C (90°F) | 31°C (87°F) | 32°C (89°F) | 33°C (92°F) |
| Dew point | 24°C (75°F) | 24°C (76°F) | 23°C (74°F) | 23°C (73°F) | 22°C (72°F) | 21°C (70°F) | 22°C (71°F) | 23°C (74°F) |
| Wind | ||||||||
| Speed | 19km/h (12mph) | 22km/h (14mph) | 24km/h (15mph) | 17km/h (10mph) | 12km/h (8mph) | 12km/h (7mph) | 12km/h (7mph) | 17km/h (11mph) |
| Gusts | 25km/h (16mph) | 29km/h (18mph) | 32km/h (20mph) | 22km/h (14mph) | 17km/h (11mph) | 20km/h (12mph) | 19km/h (12mph) | 24km/h (15mph) |
| Direction | 101° E | 120° ESE | 130° SE | 121° ESE | 101° ESE | 85° E | 86° E | 81° E |
| Wind chill | 29°C (85°F) | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 28°C (82°F) | 29°C (83°F) | 29°C (84°F) |
| Waves | ||||||||
| Height | 0.2m (0.8ft) | 0.4m (1.2ft) | 0.5m (1.7ft) | 0.6m (2.0ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.3m (1.0ft) |
| Direction | 104° ESE | 103° ESE | 112° ESE | 120° ESE | 121° ESE | 116° ESE | 111° ESE | 107° ESE |
| Period | 2.8 sec. | 2.8 sec. | 2.8 sec. | 2.8 sec. | 3.9 sec. | 4.5 sec. | 4.4 sec. | 4.3 sec. |
| Significant height | 0.5m (1.6ft) | 0.6m (2ft) | 0.7m (2.3ft) | 0.5m (1.6ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.6m (2ft) | 0.6m (2ft) |
| Sea water temperature | ||||||||
| Water temperature | 28°C (83°F) | 28°C (83°F) | 28°C (83°F) | 30°C (86°F) | 30°C (86°F) | 30°C (86°F) | 30°C (86°F) | 30°C (86°F) |
Sea weather on Wednesday 24 June 2026
On Wednesday 24 June 2026, the sun will rise at 06:40 and will set at 20:19 on the beach(es) of Key West. The outside temperature will be a high of 85°F t and a low of 85°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 11.8mph km/h (with gusts up to 16.2mph). Wave height will be up to 1.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | |  | | | | |
| Outside temperature | 29°C (85°F) | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 29°C (85°F) | 29°C (85°F) |
| Perceived temperature | 34°C (92°F) | 33°C (92°F) | 33°C (92°F) | 33°C (92°F) | 33°C (91°F) | 33°C (91°F) | 34°C (92°F) | 34°C (93°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 71% | 72% | 73% | 72% | 71% | 69% | 70% | 73% |
| Barometric pressure | 1019 hPa | 1018 hPa | 1018 hPa | 1019 hPa | 1018 hPa | 1018 hPa | 1017 hPa | 1018 hPa |
| Cloud cover | 38% | 48% | 64% | 60% | 55% | 45% | 30% | 30% |
| Heat index | 34°C (92°F) | 33°C (92°F) | 33°C (92°F) | 33°C (92°F) | 33°C (91°F) | 33°C (91°F) | 34°C (92°F) | 34°C (93°F) |
| Dew point | 24°C (74°F) | 24°C (74°F) | 24°C (74°F) | 24°C (74°F) | 23°C (74°F) | 23°C (73°F) | 23°C (74°F) | 24°C (75°F) |
| Wind | ||||||||
| Speed | 19km/h (12mph) | 17km/h (11mph) | 14km/h (9mph) | 14km/h (9mph) | 13km/h (8mph) | 11km/h (7mph) | 12km/h (7mph) | 14km/h (9mph) |
| Gusts | 26km/h (16mph) | 23km/h (14mph) | 19km/h (12mph) | 19km/h (12mph) | 18km/h (11mph) | 16km/h (10mph) | 16km/h (10mph) | 20km/h (13mph) |
| Direction | 92° E | 99° E | 87° E | 78° ENE | 78° ENE | 84° E | 86° E | 96° E |
| Wind chill | 29°C (85°F) | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 29°C (84°F) | 29°C (85°F) | 29°C (85°F) |
| Waves | ||||||||
| Height | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.3m (1.0ft) | 0.3m (1.0ft) | 0.3m (1.0ft) | 0.3m (1.0ft) | 0.3m (1.0ft) |
| Direction | 106° ESE | 107° ESE | 108° ESE | 108° ESE | 108° ESE | 109° ESE | 109° ESE | 107° ESE |
| Period | 4.3 sec. | 4.3 sec. | 4.3 sec. | 4.2 sec. | 4.1 sec. | 4.0 sec. | 3.9 sec. | 3.9 sec. |
| Significant height | 0.6m (2ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.5m (1.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 30°C (86°F) | 30°C (86°F) | 30°C (86°F) | 30°C (86°F) | 30°C (86°F) | 30°C (86°F) | 30°C (86°F) | 30°C (86°F) |