September weather forecastDunvant, United Kingdom
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Dunvant, United Kingdom, with an average temperature ranging between max 16.5°C (61.7°F) and min 12.6°C (54.7°F).Temperature
Dunvant's shift into September is marked by a subtle change to a still enjoyable 16.5°C (61.7°F) from August's 17.6°C (63.7°F) in temperature. Dunvant records a slight downturn in temperature to an average of 12.6°C (54.7°F) during September nights.Humidity
In Dunvant, the average relative humidity in September is 83%.Rainfall
In Dunvant, in September, during 16.9 rainfall days, 55mm (2.17") of precipitation is typically accumulated. In Dunvant, during the entire year, the rain falls for 210.8 days and collects up to 785mm (30.91") of precipitation.Snowfall
April through November are months without snowfall in Dunvant.Daylight
In September, the average length of the day is 12h and 38min.On the first day of the month, sunrise is at 6:29 am and sunset at 8:02 pm. On the last day of September, in Dunvant, sunrise is at 7:16 am and sunset at 6:55 pm BST.
Sunshine
In September, the average sunshine is 7.1h.UV index
The months with the highest UV index in Dunvant are May through September, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dunvant, United Kingdom
- Average high temperature in September: 16.5°C
The warmest month (with the highest average high temperature) is July (17.8°C).
The month with the lowest average high temperature is February (7.8°C).
- Average low temperature in September: 12.6°C
The month with the highest average low temperature is August (14.1°C).
The coldest month (with the lowest average low temperature) is February (5°C).
Average pressure in September
Dunvant, United Kingdom
- Average pressure in September: 1016.7mbar
The months with the highest atmospheric pressure are May and September (1016.7mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).
Average wind speed in September
Dunvant, United Kingdom
- Average wind speed in September: 19.3km/h
The windiest month (with the highest average wind speed) is December (25.7km/h).
The calmest month (with the lowest average wind speed) is June (16.4km/h).
Average humidity in September
Dunvant, United Kingdom
- Average humidity in September: 83%
The months with the highest relative humidity are January, August and December (84%).
The month with the lowest relative humidity is April (80%).
Average rainfall in September
Dunvant, United Kingdom
- Average rainfall in September: 55mm
The wettest month (with the highest rainfall) is December (101mm).
The driest month (with the least rainfall) is May (37mm).
Average rainfall days in September
Dunvant, United Kingdom
- Average rainfall days in September: 16.9 days
The month with the highest number of rainy days is December (21.4 days).
The month with the least rainy days is April (14.4 days).
Average snowfall in September
Dunvant, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is December (8mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Dunvant, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Dunvant, United Kingdom
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 7h and 6min
The months with the most sunshine are April and May (Average sunshine: 8h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Dunvant, United Kingdom
- Average sunshine days in September: 10.3 days
The month with the most sunshine days is May (13 days).
The month with the least sunshine days is December (6.6 days).
Average UV index in September
Dunvant, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Dunvant, United Kingdom
- Average cloud cover in September: 51
The month with the most cloud cover is December (Cloud cover 63).
The months with the least cloud cover are April and May (Cloud cover 45).
Average visibility in September
Dunvant, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are March, April, June, July and October (10km).
The months with the lowest visibility are January, February, May, August, September, November and December (9km).
