Weather in Jersey, Channel Islands in September

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Visiting Jersey, Channel Islands in September

September is one of the best months to visit Jersey for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.

The weather in September is marginally cooler than the previous month and temperatures continue to drop into October. September has average maximum temperatures of 18°C (65°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 0.5cm (0.2inches) 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 (64°F). September is a little too cold to enjoy swimming in Jersey for prolonged periods of time. The sea temperature in September is marginally cooler than the previous month and temperatures continue to drop slightly into October.

Also consider visiting Jersey 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.

Can you sunbathe in Jersey in September?

No, September is not a good time for sunbathing in Jersey.

September has average maximum temperatures of 18°C (65°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 0.5cm (0.2inches) 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.

Can you swim in Jersey in September?

Probably not, September is a little too cold to enjoy swimming in Jersey for prolonged periods of time with the sea water at 18°C (64°F).

More about September sea temperatures.

Is September a good time to holiday in Jersey?

Yes, September is a good time for a holiday in Jersey.

September has average maximum temperatures of 18°C (65°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 0.5cm (0.2inches) 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 (64°F). September is a little too cold to enjoy swimming in Jersey for prolonged periods of time.

More about the September temperatures and sunshine.

Is Jersey warm in September?

Yes, Jersey is not that warm but sunbathing may be possible on some clear days in September.

The average maximum temperature in Jersey in September is 18°C (65°F). The average maximum temperature is 19°C (67°) in the previous month and 16°C (60°F) in the next month.

The average temperature in Jersey in September is 16°C (60°F). The average temperature is 17°C (62°F) in the previous month and 14°C (56°F) in the next month.

More info about the September temperatures and sunshine.

How sunny is Jersey in September?

The average day light hours per day in Jersey 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.

Temperature in Jersey in September

The weather in September is marginally cooler than the previous month and temperatures continue to drop into October. The average maximum temperature in Jersey in September is 18°C (65°F). The average maximum temperature is 19°C (67°F) in the previous month and 16°C (60°F) in the next month.

The average temperature in Jersey in September is 16°C (60°F). The average temperature is 17°C (62°F) in the previous month and 14°C (56°F) in the next month.

The average minimum temperature in Jersey 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.

Sunshine in Jersey in September

The days in September are shorter than the previous month and days continue to get shorter into October. September has far fewer hours of sunshine than the previous month and hours of sunshine continue to drop markedly into October. During September the average day light hours are 12.6 per day in Jersey. 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 Jersey 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.

Sea Temperature in Jersey in September

The average sea water temperature in Jersey in September is 17.5°C (63.5°F) which is cool for swimming, shorty wetsuit may help you extend your time in the water. The sea temperature in September is marginally cooler than the previous month and temperatures continue to drop slightly into October.

Rainfall in Jersey in September

September weather is marginally wetter than the previous month and rainfall continues to rise slightly into October. September has fewer days of rain than the previous month. The average total rainfall in Jersey in September is 0.5cm (0.2inches) and on average there are 13 rainy days in September making it a pretty wet time to visit the beach.

Humidity in Jersey in September

The maximum dew point (an indicator of humidity) in Jersey in September is 14°C (58°F) which is comfortable for everyone. The dew point is 15°C (60°F) in the previous month and 13°C (13°F) in the next month.

The average maximum relative humidity in Jersey in September is typically 94.2%. The maximum relative humidity is 95.5% in the previous month and 93.7% in the next month.

The average relative humidity in Jersey in September is typically 81.2%. The average relative humidity is 82.2% in the previous month and 83% in the next month.

Wind Speed in Jersey in September

The average maximum wind speed in Jersey in September is typically 28KM/H (17MPH). The average maximum wind speed is 27KM/H (17MPH) in the previous month and 32KM/H (20MPH) in the next month.

The average wind speed in Jersey in September is typically 19KM/H (12MPH). The average wind speed is 18KM/H (11MPH) in the previous month and 22KM/H (13MPH) in the next month.

The average wind direction in Jersey in September is from the West-Northwest.

Monthly Averages

Suggested Beaches in September

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Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.

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Need Inspiration?

Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.