Weather in Wales, United Kingdom in September

So you're interested in going to Wales, United Kingdom in September

September is a slightly cold and dry time for sunbathing in Wales. September is too cold for swimming in Wales for any length of time, unless you have a wetsuit. Consider visiting Wales in the months of June, July, August, September, for the best beach weather. Also consider one of our other suggestions for September.

Temperature in Wales in September

The average maximum temperature in Wales in September is 18°. The average maximum temperature is 19° in the previous month and 15° in the next month.

The average temperature in Wales in September is 14°. The average temperature ranges is 16° in the previous month and 12° in the next month.

The average minimum temperature in Wales in September is 11°. The minimum temperature is 12° in the previous month and in the next month.

Sunshine in Wales in September

The average day light hours per day in Wales in September are 12.7 and there are 4.7 hours of sunshine per day on average during September making it a sunny month that is overcast at times.

The ultraviolet index in Wales in September is typically 4.1 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 Wales in September

The average sea water temperature in Wales in September is 16.2° which is cool for swimming, shorty wetsuit may help you extend your time in the water.

Rainfall in Wales in September

The average total rainfall in Wales in September is 1.3cm and on average there are 9.1 rainy days in September making it a dry time to visit the beach.

Humidity in Wales in September

The maximum dew point (an indicator of humidity) in Wales in September is 14° which is comfortable for everyone. The dew point is 15° in the previous month and 12° in the next month.

The average maximum relative humidity in Wales in September is typically 96.1%. The maximum relative humidity is 96% in the previous month and 96.4% in the next month.

The average relative humidity in Wales in September is typically 82.6%. The average relative humidity is 81.9% in the previous month and 85.2% in the next month.

Wind Speed in Wales in September

The average maximum wind speed in Wales in September is typically 34kmh. The average maximum wind speed is 36kmh in the previous month and 41kmh in the next month.

The average wind speed in Wales in September is typically 21kmh. The average wind speed is 22kmh in the previous month and 26kmh in the next month.

The average wind direction in Wales in September is from the West-Southwest.

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