Weather in West Palm Beach: September
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Average day temperature: | 86.0°F |
| Average night temperature: | 80.2°F | |
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Sea water temperature: | 85.9°F |
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Number of sunny days: | 4 days |
| Day length: | 11.9 - 12.7 hours | |
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Number of rainy days: | 6 days |
| Precipitation totals: | 2.5 in. | |
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forecast
| West Palm Beach |
temperature
| West Palm Beach |
Air temperature in September, °F
The highest day temperature during September of 2025 was 89°F. At the same time the lowest night temperature was 74°F. Daily and nightly averages during September were 84.5°F and 78.1°F.
Sea water temperature in West Palm Beach in September, °F
The average sea water temperature in September of 2025 was 86.2°F. The highest and lowest sea temperatures during the month were 87.8°F and 85.3°F.
Mostly all days in September are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in September, in.
Precipitation total value in West Palm Beach in September is 2.5 in. Other months of the year show relatively similar values.
The average wind speed value in September is 8.0 mph It makes September lest windy month of the year.
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 September is: 5.7.
Best time for vacation in West Palm Beach
West Palm Beach on a weather map
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