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10°
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8°
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9°
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18°
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September is one of the best months to visit Guernsey for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.
September has average maximum temperatures of 18°C (64°F) which is not that warm but sunbathing may be possible on some clear days. The sunshine percentage is 48% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.1 hours of sunshine per day. September has total rainfall of 0.9cm (0.4inches) making it mostly dry but with short lived occasional showers. There are only 13 days with some rainfall so you can still enjoy the beach on the majority of days. Sea temperatures are a chilly 18°C (65°F). September is a little too cold to enjoy swimming in Guernsey for prolonged periods of time.
Also consider visiting Guernsey in one of the other best months of June, July, August, for the best beach weather.
Also consider one of our other suggestions for September.
No, September is not a good time for sunbathing in Guernsey.
September has average maximum temperatures of 18°C (64°F) which is not that warm but sunbathing may be possible on some clear days. The sunshine percentage is 48% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.1 hours of sunshine per day. September has total rainfall of 0.9cm (0.4inches) making it mostly dry but with short lived occasional showers. There are only 13 days with some rainfall so you can still enjoy the beach on the majority of days.
More about September temperature and sunshine.
Probably not, September is a little too cold to enjoy swimming in Guernsey for prolonged periods of time with the sea water at 18°C (65°F).
More about September sea temperatures.
Yes, September is a slightly cool time for a holiday in Guernsey.
September has average maximum temperatures of 18°C (64°F) which is not that warm but sunbathing may be possible on some clear days. The sunshine percentage is 48% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.1 hours of sunshine per day. September has total rainfall of 0.9cm (0.4inches) making it mostly dry but with short lived occasional showers. There are only 13 days with some rainfall so you can still enjoy the beach on the majority of days. Sea temperatures are a chilly 18°C (65°F). September is a little too cold to enjoy swimming in Guernsey for prolonged periods of time.
More about the September temperatures and sunshine.
No, Guernsey is not that warm but sunbathing may be possible on some clear days in September.
The average maximum temperature in Guernsey in September is 18°C (64°F). The average maximum temperature is 19°C (66°) in the previous month and 15°C (60°F) in the next month.
The average temperature in Guernsey in September is 16°C (60°F). The average temperature is 17°C (62°F) in the previous month and 13°C (56°F) in the next month.
More info about the September temperatures and sunshine.
The average day light hours per day in Guernsey in September are 12.6. The sunshine percentage is 48% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.1 hours of sunshine per day.
More about September sunshine.
The average maximum temperature in Guernsey in September is 18°C (64°F). The average maximum temperature is 19°C (66°F) in the previous month and 15°C (60°F) in the next month.
The average temperature in Guernsey in September is 16°C (60°F). The average temperature is 17°C (62°F) in the previous month and 13°C (56°F) in the next month.
The average minimum temperature in Guernsey in September is 13°C (56°F). The minimum temperature is 14°C (58°F) in the previous month and 12°C (53°F) in the next month.
During September the average day light hours are 12.6 per day in Guernsey. The sunshine percentage is 48% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.1 hours of sunshine per day.
The ultraviolet index in Guernsey in September is typically 4.5 during September. An ultraviolet index reading of 3 to 5 indicates there is a moderate risk of harm from unprotected sun exposure. Keep out of the sun during the strongest hours around midday when unprotected skin risks burning in less than 30 minutes. For the sensitive wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days, and after swimming or sweating. Tanning for hours is possible with the right application of sun cream. Watch out for relections from water that may increase ultraviolet exposure.
The average sea water temperature in Guernsey in September is 18.4°C (65.1°F) which is cool for swimming, shorty wetsuit may help you extend your time in the water.
The average total rainfall in Guernsey in September is 0.9cm (0.4inches) and on average there are 13 rainy days in September making it a pretty wet time to visit the beach.
The maximum dew point (an indicator of humidity) in Guernsey in September is 15°C (58°F) which is comfortable for everyone. The dew point is 16°C (60°F) in the previous month and 13°C (13°F) in the next month.
The average maximum relative humidity in Guernsey in September is typically 95.4%. The maximum relative humidity is 96.7% in the previous month and 94.2% in the next month.
The average relative humidity in Guernsey in September is typically 84%. The average relative humidity is 84.6% in the previous month and 84.7% in the next month.
The average maximum wind speed in Guernsey in September is typically 27KM/H (17MPH). The average maximum wind speed is 27KM/H (16MPH) in the previous month and 31KM/H (19MPH) in the next month.
The average wind speed in Guernsey in September is typically 18KM/H (11MPH). The average wind speed is 18KM/H (11MPH) in the previous month and 21KM/H (13MPH) in the next month.
The average wind direction in Guernsey in September is from the West.
Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.
Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.
