Weather in Key Largo: May
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Average day temperature: | 81.2°F |
| Average night temperature: | 79.0°F | |
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Sea water temperature: | 82.9°F |
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Number of sunny days: | 10 days |
| Day length: | 13.1 - 13.6 hours | |
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Number of rainy days: | 2 days |
| Precipitation totals: | 1.1 in. | |
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forecast
| Key Largo |
temperature
| Key Largo |
Air temperature in May, °F
The highest day temperature during May of 2025 was 86°F. At the same time the lowest night temperature was 75°F. Daily and nightly averages during May were 81.8°F and 78.8°F.
Sea water temperature in Key Largo in May, °F
The average sea water temperature in May of 2025 was 83.5°F. The highest and lowest sea temperatures during the month were 87.6°F and 79.0°F.
Mostly all days in May are partly cloudy but sunny or cloudy days are also possible.
Precipitation total in May, in.
Precipitation total value in Key Largo in May is 1.1 in. Other months of the year show relatively similar values.
The average wind speed value in May is 11.4 mph
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 7.9.
Best time for vacation in Key Largo
Key Largo on a weather map
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