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Channel Islands Weather September
To help you choose the best time to travel, you can find climate data below on the weather in the Channel Islands in September.
average daily high | +18.7°C | |
average daily low | +12.9°C | |
sea temperature | +18°C | |
daytime | 13.1 h | |
sunny / overcast hours | 6.2 / 6.9 | |
average monthly precipitation | 64 mm | |
Best time with the soft weather for the sightseeing and long walks in the Channel Islands are June, July, August, September.
Temperature in the Channel Islands
In September the average daily maximum in the Channel Islands is +18.7°C, and the minimum +12.9°C.
The hottest September day on record is +30.2°C, and the coldest +6°C.
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Daylight hours
There are 13.1 hours of daylight in the Channel Islands in September. Out of these, on average 6.2 are sunny, which means it is mostly cloudy.
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Sea temperature
The average monthly temperature in the English Channel on the beaches of the Channel Islands in September is +18°C.
The water is considered very cool, but some hardy people might bathe in it for 10-15 minutes.
Channel Islands climate by month
Precipitation
The amount of precipitation in the Channel Islands in September is usually 64 mm, which may cause a change of plans on certain days.