Weather in Bolshoy Utrish: September
| Average day temperature: | 75.1°F | |
| Average night temperature: | 64.6°F | |
| Sea water temperature: | 74.8°F | |
| Number of sunny days: | 21 days | |
| Day length: | 11.8 - 13.3 hours | |
| Number of rainy days: | 3 days | |
| Precipitation totals: | 1.4 in. | |
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| Bolshoy Utrish |
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| Bolshoy Utrish |
Air temperature in September, °F
The highest day temperature during September of 2025 was 81°F. At the same time the lowest night temperature was 50°F. Daily and nightly averages during September were 72.2°F and 62.5°F.
Sea water temperature in Bolshoy Utrish in September, °F
The average sea water temperature in September of 2025 was 73.6°F. The highest and lowest sea temperatures during the month were 77.0°F and 69.6°F.
Mostly all days in September are sunny but cloudy days are also possible.
Precipitation total in September, in.
Precipitation total value in Bolshoy Utrish in September is 1.6 in. Other months of the year show relatively similar values.
The average wind speed value in September is 11.7 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 September is: 9.2.
Best time for vacation in Bolshoy Utrish
Bolshoy Utrish on a weather map

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