Weather in Uppsala: September
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Average day temperature: | 61.5°F |
| Average night temperature: | 49.8°F | |
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Sea water temperature: | 61.3°F |
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Number of sunny days: | 9 days |
| Day length: | 11.5 - 14.1 hours | |
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Number of rainy days: | 3 days |
| Precipitation totals: | 1.2 in. | |
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forecast
| Uppsala |
temperature
| Uppsala |
Air temperature in September, °F
The highest day temperature during September of 2026 was 71°F. At the same time the lowest night temperature was 43°F. Daily and nightly averages during September were 62.0°F and 50.8°F.
Sea water temperature in Uppsala in September, °F
The average sea water temperature in September of 2026 was 61.3°F. The highest and lowest sea temperatures during the month were 64.8°F and 58.1°F.
Number of sunny, partly cloudy and cloudy days in September is almost equal.
Precipitation total in September, in.
Precipitation total value in Uppsala in September is 1.0 in. Other months of the year show relatively similar values.
The average wind speed value in September is 6.7 mph It makes September one of the least windy months 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: 6.2.
Best time for vacation in Uppsala
Uppsala on a weather map
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