Current sea water temperature:
+88.0°F
| Minimum sea water temperature in June: | 89.2°F |
| Maximum sea water temperature in June: | 82.0°F |
| Average sea water temperature in June: | 85.3°F |
| more information | |
14 days
forecast
forecast
| Key Largo |
monthly
weather
weather
| Key Largo |
Sea water temperature for the last 10 days:
| June 29 | 88.0°F | June 24 | 88.0°F |
| June 28 | 89.2°F | June 23 | 87.8°F |
| June 27 | 88.3°F | June 22 | 87.6°F |
| June 26 | 89.2°F | June 21 | 87.3°F |
| June 25 | 88.0°F | June 20 | 87.3°F |
Monthly sea water temperature, °F
When is the warmest sea in Key Largo?
Based on the data about daily sea water temperature for the last three years the warmest sea in Key Largo was noticed in August, July and September.
Monthly Sea Temperatures in Key Largo, °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.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 86.2°F. The highest and lowest sea temperatures during the month were 89.2°F and 84.4°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 86.6°F. The highest and lowest sea temperatures during the month were 88.5°F and 85.5°F.
current
weather
weather
| Key Largo |
weather in
July
July
| Key Largo |
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: 18:27
June 29, monday
2100
86°F
W
13 mph
13 mph
June 30, tuesday
0000
84°F
W
11 mph
11 mph
0300
84°F
W
8 mph
8 mph
0600
82°F
W
5 mph
5 mph
0900
84°F
W
4 mph
4 mph
1200
84°F
W
4 mph
4 mph
1500
86°F
W
9 mph
9 mph
1800
86°F
NW
9 mph
9 mph
