September is a slightly cold and rainy time for sunbathing in St Agnes. September is too cold for swimming in St Agnes for any length of time, unless you have a wetsuit. Consider visiting St Agnes in the months of June, July, August, September, for the best beach weather. Also consider one of our other suggestions for September.
The average maximum temperature in St Agnes in September is 17°. The average maximum temperature is 18° in the previous month and 15° in the next month.
The average temperature in St Agnes 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 St Agnes in September is 12°. The minimum temperature is 13° in the previous month and 10° in the next month.
The average day light hours per day in St Agnes in September are 12.6 and there are 5.1 hours of sunshine per day on average during September making it a sunny month that is overcast at times.
The ultraviolet index in St Agnes in September is typically 4.3 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 St Agnes in September is 15.9° which is cold for swimming, a full wet suit is required to spend any length of time in the sea.
The average total rainfall in St Agnes in September is 0.4cm and on average there are 15.2 rainy days in September making it a wet time to visit the beach.
The maximum dew point (an indicator of humidity) in St Agnes in September is 14° which is comfortable for everyone. The dew point is 15° in the previous month and 13° in the next month.
The average maximum relative humidity in St Agnes in September is typically 96.9%. The maximum relative humidity is 97.6% in the previous month and 97.2% in the next month.
The average relative humidity in St Agnes in September is typically 86.4%. The average relative humidity is 86.4% in the previous month and 87.2% in the next month.
The average maximum wind speed in St Agnes in September is typically 27kmh. The average maximum wind speed is 26kmh in the previous month and 30kmh in the next month.
The average wind speed in St Agnes in September is typically 17kmh. The average wind speed is 16kmh in the previous month and 20kmh in the next month.
The average wind direction in St Agnes in September is from the West.
