Weather in Fortaleza: September
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Average day temperature: | 86.6°F |
| Average night temperature: | 76.5°F | |
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Sea water temperature: | 80.2°F |
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Number of sunny days: | 15 days |
| Day length: | 12.0 - 12.1 hours | |
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Number of rainy days: | 0 days |
| Precipitation totals: | 0.4 in. | |
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forecast
| Fortaleza |
temperature
| Fortaleza |
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 72°F. Daily and nightly averages during September were 87.3°F and 74.4°F.
Sea water temperature in Fortaleza in September, °F
The average sea water temperature in September of 2025 was 80.4°F. The highest and lowest sea temperatures during the month were 81.0°F and 80.2°F.
Mostly all days in September are partly cloudy but sunny or cloudy days are also possible.
Precipitation total in September, in.
Precipitation total value in Fortaleza in September is 0.4 in. Other months of the year show relatively similar values.
The average wind speed value in September is 14.0 mph It makes September most 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: 8.4.
Best time for vacation in Fortaleza
Fortaleza on a weather map
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