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. Our opinion
Sunday 28 June 202685°F to 86°Fdiscouraged
Monday 29 June 202683°F to 86°Fdiscouraged
Tuesday 30 June 202681°F to 86°Frecommended
Wednesday 1 July 202679°F to 85°Frecommended
Thursday 2 July 202677°F to 85°Frecommended
Friday 3 July 202685°F to 86°Frecommended
Saturday 4 July 202685°F to 86°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Key West

Sea weather on Sunday 28 June 2026

On Sunday 28 June 2026, the sun will rise at 06:41 and will set at 20:20 on the beach(es) of Key West. The outside temperature will be a high of 86°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 14.9mph km/h (with gusts up to 20.5mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (84°F)29°C (84°F)30°C (85°F)30°C (85°F)
Perceived temperature34°C (93°F)34°C (93°F)34°C (93°F)34°C (93°F)33°C (92°F)33°C (92°F)34°C (93°F)34°C (94°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity72%71%72%72%71%72%70%71%
Barometric pressure1018 hPa1016 hPa1016 hPa1018 hPa1018 hPa1017 hPa1015 hPa1016 hPa
Cloud cover64%67%59%55%57%30%35%33%
Heat index34°C (93°F)34°C (93°F)34°C (93°F)34°C (93°F)33°C (92°F)33°C (92°F)34°C (93°F)34°C (94°F)
Dew point24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)23°C (74°F)23°C (74°F)24°C (74°F)24°C (75°F)
Wind
Speed20km/h (12mph)23km/h (14mph)23km/h (14mph)20km/h (13mph)17km/h (11mph)15km/h (9mph)19km/h (12mph)24km/h (15mph)
Gusts27km/h (17mph)30km/h (19mph)31km/h (19mph)27km/h (17mph)25km/h (16mph)22km/h (13mph)27km/h (17mph)33km/h (21mph)
Direction 97°
E
106°
ESE
110°
ESE
116°
ESE
121°
ESE
106°
ESE
108°
ESE
91°
E
Wind chill29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (84°F)29°C (84°F)30°C (85°F)30°C (85°F)
Waves
Height0.4m (1.4ft)0.5m (1.6ft)0.3m (1.1ft)0.3m (1.0ft)0.6m (1.9ft)0.5m (1.7ft)0.5m (1.6ft)0.6m (2.1ft)
Direction 102°
ESE
110°
ESE
105°
ESE
118°
ESE
112°
ESE
109°
ESE
106°
ESE
106°
ESE
Period0.1 sec.0.1 sec.3.1 sec.3.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.
Significant height0.8m (2.6ft)0.8m (2.6ft)0.6m (2ft)0.5m (1.6ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.9m (3ft)
Sea water temperature
Water temperature29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)

Sea weather on Monday 29 June 2026

On Monday 29 June 2026, the sun will rise at 06:41 and will set at 20:20 on the beach(es) of Key West. The outside temperature will be a high of 86°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 15.5mph km/h (with gusts up to 20.5mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (85°F)29°C (85°F)30°C (85°F)29°C (85°F)29°C (84°F)29°C (85°F)29°C (84°F)29°C (85°F)
Perceived temperature34°C (93°F)34°C (93°F)34°C (93°F)33°C (92°F)32°C (90°F)33°C (91°F)32°C (90°F)34°C (93°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity72%72%71%68%67%64%66%71%
Barometric pressure1016 hPa1015 hPa1016 hPa1017 hPa1018 hPa1017 hPa1016 hPa1017 hPa
Cloud cover12%58%75%17%26%15%14%12%
Heat index34°C (93°F)34°C (93°F)34°C (93°F)33°C (92°F)32°C (90°F)33°C (91°F)32°C (90°F)34°C (93°F)
Dew point24°C (75°F)24°C (75°F)24°C (74°F)23°C (73°F)22°C (72°F)22°C (72°F)22°C (71°F)24°C (74°F)
Wind
Speed25km/h (15mph)22km/h (13mph)24km/h (15mph)23km/h (14mph)17km/h (11mph)13km/h (8mph)15km/h (9mph)18km/h (11mph)
Gusts33km/h (21mph)29km/h (18mph)33km/h (20mph)32km/h (20mph)26km/h (16mph)20km/h (12mph)24km/h (15mph)24km/h (15mph)
Direction 98°
E
99°
E
105°
ESE
100°
E
100°
E
83°
E
93°
E
87°
E
Wind chill29°C (85°F)29°C (85°F)30°C (85°F)29°C (85°F)29°C (84°F)29°C (85°F)29°C (84°F)29°C (85°F)
Waves
Height0.7m (2.5ft)0.7m (2.4ft)0.7m (2.4ft)0.7m (2.3ft)0.6m (1.9ft)0.5m (1.6ft)0.4m (1.5ft)0.5m (1.6ft)
Direction 101°
E
109°
ESE
104°
ESE
98°
E
98°
E
103°
ESE
104°
ESE
102°
ESE
Period0.1 sec.0.1 sec.0.1 sec.0.1 sec.0.1 sec.4.5 sec.4.5 sec.4.5 sec.
Significant height0.9m (3ft)0.9m (3ft)0.9m (3ft)0.9m (3ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.8m (2.6ft)
Sea water temperature
Water temperature31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)

Sea weather on Tuesday 30 June 2026

On Tuesday 30 June 2026, the sun will rise at 06:42 and will set at 20:20 on the beach(es) of Key West. The outside temperature will be a high of 86°F t and a low of 81°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 11.2mph km/h (with gusts up to 15.5mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature30°C (85°F)29°C (85°F)29°C (84°F)29°C (84°F)29°C (84°F)27°C (81°F)29°C (84°F)30°C (85°F)
Perceived temperature34°C (93°F)33°C (92°F)33°C (91°F)33°C (91°F)32°C (90°F)29°C (85°F)32°C (89°F)33°C (92°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity69%69%71%71%68%65%62%66%
Barometric pressure1017 hPa1015 hPa1015 hPa1017 hPa1017 hPa1016 hPa1014 hPa1015 hPa
Cloud cover30%27%52%66%56%11%0%7%
Heat index34°C (93°F)33°C (92°F)33°C (91°F)33°C (91°F)32°C (90°F)29°C (85°F)32°C (89°F)33°C (92°F)
Dew point23°C (74°F)23°C (73°F)23°C (74°F)23°C (74°F)22°C (72°F)20°C (69°F)21°C (70°F)23°C (73°F)
Wind
Speed18km/h (11mph)17km/h (11mph)15km/h (9mph)9km/h (6mph)6km/h (4mph)8km/h (5mph)6km/h (4mph)10km/h (6mph)
Gusts25km/h (15mph)23km/h (14mph)20km/h (12mph)13km/h (8mph)9km/h (6mph)16km/h (10mph)9km/h (6mph)14km/h (9mph)
Direction 75°
ENE
92°
E
115°
ESE
106°
ESE
64°
ENE
359°
N
322°
NW
23°
NNE
Wind chill30°C (85°F)29°C (85°F)29°C (84°F)29°C (84°F)29°C (84°F)27°C (81°F)29°C (84°F)30°C (85°F)
Waves
Height0.5m (1.8ft)0.5m (1.6ft)0.4m (1.5ft)0.4m (1.3ft)0.3m (1.1ft)0.3m (1.0ft)0.3m (0.9ft)0.2m (0.8ft)
Direction 103°
ESE
102°
ESE
101°
E
101°
ESE
104°
ESE
106°
ESE
105°
ESE
104°
ESE
Period4.5 sec.4.5 sec.4.5 sec.4.5 sec.4.2 sec.4.1 sec.4.0 sec.3.8 sec.
Significant height0.8m (2.6ft)0.7m (2.3ft)0.6m (2ft)0.6m (2ft)0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)
Sea water temperature
Water temperature31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)

Sea weather on Wednesday 1 July 2026

On Wednesday 1 July 2026, the sun will rise at 06:42 and will set at 20:20 on the beach(es) of Key West. The outside temperature will be a high of 85°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 5.6mph km/h (with gusts up to 7.5mph). Wave height will be up to 0.7ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (85°F)29°C (85°F)29°C (84°F)29°C (83°F)28°C (82°F)27°C (80°F)28°C (83°F)29°C (84°F)
Perceived temperature33°C (92°F)33°C (91°F)32°C (90°F)32°C (90°F)31°C (88°F)28°C (83°F)31°C (87°F)32°C (90°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity68%68%69%73%70%66%64%65%
Barometric pressure1015 hPa1014 hPa1014 hPa1015 hPa1016 hPa1015 hPa1014 hPa1015 hPa
Cloud cover7%21%59%37%80%5%4%3%
Heat index33°C (92°F)33°C (91°F)32°C (90°F)32°C (90°F)31°C (88°F)28°C (83°F)31°C (87°F)32°C (90°F)
Dew point23°C (73°F)23°C (73°F)23°C (73°F)23°C (74°F)22°C (72°F)20°C (68°F)21°C (69°F)22°C (72°F)
Wind
Speed7km/h (4mph)3km/h (2mph)4km/h (2mph)9km/h (5mph)8km/h (5mph)4km/h (2mph)3km/h (2mph)8km/h (5mph)
Gusts10km/h (6mph)4km/h (2mph)5km/h (3mph)12km/h (7mph)12km/h (7mph)8km/h (5mph)5km/h (3mph)11km/h (7mph)
Direction 36°
NE
37°
NE
144°
SE
149°
SSE
155°
SSE
154°
SSE
118°
ESE
27°
NNE
Wind chill29°C (85°F)29°C (85°F)29°C (84°F)29°C (83°F)28°C (82°F)27°C (80°F)28°C (83°F)29°C (84°F)
Waves
Height0.2m (0.7ft)0.2m (0.7ft)0.2m (0.8ft)0.2m (0.8ft)0.2m (0.8ft)0.2m (0.7ft)0.2m (0.6ft)0.2m (0.6ft)
Direction 100°
E
102°
ESE
109°
ESE
110°
ESE
108°
ESE
106°
ESE
105°
ESE
105°
ESE
Period3.8 sec.3.1 sec.3.0 sec.3.3 sec.3.6 sec.3.5 sec.3.5 sec.3.4 sec.
Significant height0.6m (2ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.4m (1.3ft)
Sea water temperature
Water temperature31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)

Sea weather on Thursday 2 July 2026

On Thursday 2 July 2026, the sun will rise at 06:42 and will set at 20:20 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 8.1mph km/h (with gusts up to 14.3mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (85°F)29°C (84°F)29°C (83°F)29°C (84°F)25°C (77°F)27°C (81°F)29°C (83°F)29°C (85°F)
Perceived temperature33°C (91°F)32°C (90°F)32°C (90°F)32°C (90°F)27°C (80°F)29°C (84°F)31°C (88°F)33°C (92°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity67%67%71%71%67%64%64%69%
Barometric pressure1015 hPa1014 hPa1015 hPa1016 hPa1017 hPa1016 hPa1016 hPa1017 hPa
Cloud cover3%19%61%53%2%3%0%3%
Heat index33°C (91°F)32°C (90°F)32°C (90°F)32°C (90°F)27°C (80°F)29°C (84°F)31°C (88°F)33°C (92°F)
Dew point23°C (73°F)22°C (72°F)23°C (73°F)23°C (73°F)19°C (66°F)20°C (67°F)21°C (70°F)23°C (73°F)
Wind
Speed13km/h (8mph)12km/h (7mph)11km/h (7mph)13km/h (8mph)11km/h (7mph)10km/h (6mph)8km/h (5mph)13km/h (8mph)
Gusts18km/h (11mph)16km/h (10mph)15km/h (9mph)17km/h (11mph)23km/h (15mph)19km/h (12mph)13km/h (8mph)18km/h (11mph)
Direction 89°
E
141°
SE
129°
SE
130°
SE
129°
SE
122°
ESE
103°
ESE
89°
E
Wind chill29°C (85°F)29°C (84°F)29°C (83°F)29°C (84°F)25°C (77°F)27°C (81°F)29°C (83°F)29°C (85°F)
Waves
Height0.3m (1.0ft)0.4m (1.3ft)0.4m (1.3ft)0.3m (1.1ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (0.9ft)0.3m (1.1ft)
Direction 106°
ESE
115°
ESE
117°
ESE
110°
ESE
106°
ESE
105°
ESE
104°
ESE
101°
E
Period4.0 sec.4.0 sec.4.0 sec.3.9 sec.3.9 sec.3.9 sec.3.9 sec.3.9 sec.
Significant height0.5m (1.6ft)0.7m (2.3ft)0.6m (2ft)0.5m (1.6ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.7m (2.3ft)
Sea water temperature
Water temperature31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)

Sea weather on Friday 3 July 2026

On Friday 3 July 2026, the sun will rise at 06:43 and will set at 20:20 on the beach(es) of Key West. The outside temperature will be a high of 86°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 10.6mph km/h (with gusts up to 13.7mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (85°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)29°C (85°F)
Perceived temperature34°C (93°F)33°C (92°F)33°C (92°F)33°C (92°F)33°C (92°F)34°C (92°F)33°C (92°F)34°C (93°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity72%70%70%71%72%71%69%71%
Barometric pressure1017 hPa1016 hPa1017 hPa1018 hPa1018 hPa1018 hPa1017 hPa1018 hPa
Cloud cover64%41%53%52%56%63%29%13%
Heat index34°C (93°F)33°C (92°F)33°C (92°F)33°C (92°F)33°C (92°F)34°C (92°F)33°C (92°F)34°C (93°F)
Dew point24°C (75°F)23°C (74°F)23°C (74°F)23°C (74°F)24°C (74°F)24°C (74°F)23°C (73°F)24°C (74°F)
Wind
Speed17km/h (10mph)16km/h (10mph)14km/h (9mph)12km/h (7mph)10km/h (6mph)11km/h (7mph)10km/h (6mph)15km/h (9mph)
Gusts22km/h (14mph)21km/h (13mph)19km/h (12mph)16km/h (10mph)15km/h (9mph)16km/h (10mph)14km/h (9mph)21km/h (13mph)
Direction 121°
ESE
118°
ESE
117°
ESE
115°
ESE
109°
ESE
105°
ESE
108°
ESE
85°
E
Wind chill29°C (85°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)29°C (85°F)
Waves
Height0.4m (1.3ft)0.5m (1.5ft)0.5m (1.5ft)0.4m (1.3ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (1.0ft)
Direction 103°
ESE
108°
ESE
108°
ESE
107°
ESE
106°
ESE
105°
ESE
104°
ESE
104°
ESE
Period3.9 sec.3.9 sec.3.9 sec.4.0 sec.4.1 sec.4.0 sec.4.0 sec.4.0 sec.
Significant height0.7m (2.3ft)0.7m (2.3ft)0.6m (2ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.7m (2.3ft)
Sea water temperature
Water temperature31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)

Sea weather on Saturday 4 July 2026

On Saturday 4 July 2026, the sun will rise at 06:43 and will set at 20:20 on the beach(es) of Key West. The outside temperature will be a high of 86°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 13.1mph km/h (with gusts up to 17.4mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (85°F)29°C (85°F)29°C (85°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (85°F)
Perceived temperature34°C (94°F)34°C (93°F)34°C (92°F)34°C (92°F)33°C (92°F)33°C (92°F)34°C (92°F)34°C (92°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity72%71%72%74%72%74%73%69%
Barometric pressure1017 hPa1016 hPa1016 hPa1017 hPa1017 hPa1017 hPa1016 hPa1017 hPa
Cloud cover40%45%52%66%63%56%35%11%
Heat index34°C (94°F)34°C (93°F)34°C (92°F)34°C (92°F)33°C (92°F)33°C (92°F)34°C (92°F)34°C (92°F)
Dew point24°C (75°F)24°C (74°F)24°C (74°F)24°C (75°F)24°C (74°F)24°C (74°F)24°C (75°F)23°C (74°F)
Wind
Speed18km/h (11mph)19km/h (12mph)18km/h (11mph)18km/h (11mph)18km/h (11mph)16km/h (10mph)15km/h (9mph)21km/h (13mph)
Gusts24km/h (15mph)26km/h (16mph)23km/h (15mph)24km/h (15mph)25km/h (15mph)23km/h (14mph)21km/h (13mph)28km/h (17mph)
Direction 95°
E
112°
ESE
114°
ESE
111°
ESE
115°
ESE
116°
ESE
105°
ESE
96°
E
Wind chill29°C (85°F)29°C (85°F)29°C (85°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (85°F)
Waves
Height0.4m (1.3ft)0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (1.0ft)
Direction 105°
ESE
106°
ESE
106°
ESE
107°
ESE
108°
ESE
107°
ESE
107°
ESE
106°
ESE
Period4.0 sec.4.0 sec.4.0 sec.4.0 sec.4.0 sec.4.0 sec.3.9 sec.3.9 sec.
Significant height0.7m (2.3ft)0.7m (2.3ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.5m (1.6ft)0.4m (1.3ft)0.6m (2ft)
Sea water temperature
Water temperature31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)31°C (88°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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