World Resorts

USA

Key West Weather

Key West 14 Days Forecast

29.04
wed

Day

82°F

W 8 mph

Precip.
0%

Night

79°F

NW 14 mph

Precip.
0%

30.04
thu

Day

79°F

NW 4 mph

Precip.
0%

Night

79°F

NW 5 mph

Precip.
0%

01.05
fri

Day

79°F

NW 11 mph

Precip.
0%

Night

79°F

NW 16 mph

Precip.
0%

02.05
sat

Day

79°F

N 15 mph

Precip.
0%

Night

79°F

W 6 mph

Precip.
100%

03.05
sun

Day

81°F

N 8 mph

Precip.
0%

Night

79°F

SE 7 mph

Precip.
100%

04.05
mon

Day

77°F

S 12 mph

Precip.
33%

Night

77°F

SW 9 mph

Precip.
100%

05.05
tue

Day

77°F

W 5 mph

Precip.
100%

Night

79°F

NW 11 mph

Precip.
100%

06.05
wed

Day

81°F

NE 12 mph

Precip.
100%

Night

81°F

W 1 mph

Precip.
100%

07.05
thu

Day

81°F

N 6 mph

Precip.
0%

Night

81°F

NW 11 mph

Precip.
0%

08.05
fri

Day

81°F

N 14 mph

Precip.
0%

Night

82°F

N 17 mph

Precip.
100%

09.05
sat

Day

81°F

NE 13 mph

Precip.
74%

Night

81°F

NE 9 mph

Precip.
100%

10.05
sun

Day

81°F

NE 11 mph

Precip.
100%

Night

81°F

E 5 mph

Precip.
22%

11.05
mon

Day

82°F

W 4 mph

Precip.
0%

Night

79°F

W 22 mph

Precip.
100%

12.05
tue

Day

81°F

W 11 mph

Precip.
85%

Night

79°F

W 12 mph

Precip.
100%

sea water
temperature

Key West

monthly
weather

Key West

current
weather

Key West

7 days
forecast

Key West

January
February
March
April

May
June
July
August

September
October
November
December

Show year:

2026

2025

2024

The average sea water temperature in April of 2026 was 78.1°F. The highest and lowest sea temperatures during the month were 80.2°F and 76.3°F.

Show year:

2025

2024

2023

The average sea water temperature in May of 2025 was 83.5°F. The highest and lowest sea temperatures during the month were 86.9°F and 79.2°F.