21.07
tue
tue
Day
90°F
NW 12 mph
Precip.
6%
6%
Night
86°F
W 14 mph
Precip.
8%
8%
22.07
wed
wed
Day
84°F
NW 13 mph
Precip.
17%
17%
Night
86°F
W 17 mph
Precip.
8%
8%
23.07
thu
thu
Day
84°F
W 11 mph
Precip.
8%
8%
Night
86°F
W 16 mph
Precip.
10%
10%
24.07
fri
fri
Day
84°F
W 9 mph
Precip.
43%
43%
Night
86°F
W 13 mph
Precip.
18%
18%
25.07
sat
sat
Day
84°F
NW 6 mph
Precip.
10%
10%
Night
84°F
NW 4 mph
Precip.
42%
42%
26.07
sun
sun
Day
84°F
N 6 mph
Precip.
11%
11%
Night
84°F
NE 4 mph
Precip.
22%
22%
27.07
mon
mon
Day
84°F
N 4 mph
Precip.
36%
36%
Night
84°F
N 8 mph
Precip.
17%
17%
sea water
temperature
temperature
| Key Largo |
monthly
weather
weather
| Key Largo |
current
weather
weather
| Key Largo |
14 days
forecast
forecast
| Key Largo |
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 88.4°F. The highest and lowest sea temperatures during the month were 89.8°F and 87.3°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 88.7°F. The highest and lowest sea temperatures during the month were 90.1°F and 86.9°F.
Air temperature in Key Largo, °F
Precipitation total in Key Largo, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Key Largo
Key Largo on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Key Largo
Local time: 09:24
July 21, tuesday
1200
90°F
NW
12 mph
12 mph
1500
88°F
NW
11 mph
11 mph
1800
88°F
NW
9 mph
9 mph
2100
84°F
W
12 mph
12 mph
July 22, wednesday
0000
86°F
W
14 mph
14 mph
0300
84°F
NW
14 mph
14 mph
0600
84°F
NW
16 mph
16 mph
0900
86°F
NW
14 mph
14 mph
