September weather forecastKelham, United Kingdom
September
Weather in September
September, the first month of the autumn in Kelham, is still a refreshing month, with an average temperature ranging between max 18°C (64.4°F) and min 10.5°C (50.9°F).Temperature
The beginning of September records an average high-temperature of a refreshing 18°C (64.4°F), marking a negligible difference from August's 20.3°C (68.5°F). In September, the recorded average low-temperature is a fresh 10.5°C (50.9°F).Humidity
In Kelham, the average relative humidity in September is 79%.Rainfall
In Kelham, United Kingdom, in September, it is raining for 10.2 days, with typically 22mm (0.87") of accumulated precipitation. In Kelham, during the entire year, the rain falls for 156.1 days and collects up to 329mm (12.95") of precipitation.Snowfall
In Kelham, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 40min.On the first day of September in Kelham, sunrise is at 6:14 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:42 pm BST.
Sunshine
In September, the average sunshine is 7.1h.UV index
In Kelham, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: An average maximum UV index of 4 in September leads to these recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kelham, United Kingdom
- Average high temperature in September: 18°C
The warmest month (with the highest average high temperature) is July (20.5°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in September: 10.5°C
The month with the highest average low temperature is August (12.7°C).
The coldest month (with the lowest average low temperature) is January (1.6°C).
Average pressure in September
Kelham, United Kingdom
- Average pressure in September: 1015.9mbar
The month with the highest atmospheric pressure is May (1016.4mbar).
The month with the lowest atmospheric pressure is November (1009.4mbar).
Average wind speed in September
Kelham, United Kingdom
- Average wind speed in September: 13.4km/h
The windiest months (with the highest average wind speed) are February and December (18.2km/h).
The calmest month (with the lowest average wind speed) is July (12.5km/h).
Average humidity in September
Kelham, United Kingdom
- Average humidity in September: 79%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (77%).
Average rainfall in September
Kelham, United Kingdom
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is June (44mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in September
Kelham, United Kingdom
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is July (19.1 days).
The months with the least rainy days are January and September (10.2 days).
Average snowfall in September
Kelham, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (29mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Kelham, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Kelham, United Kingdom
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in September: 7h and 6min
The month with the most sunshine is August (Average sunshine: 7h and 42min).
The months with the least sunshine are February and November (Average sunshine: 4h and 0min).
Average sunshine days in September
Kelham, United Kingdom
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is December (18.2 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in September
Kelham, United Kingdom
- Average UV index in September: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Kelham, United Kingdom
- Average cloud cover in September: 49
The months with the most cloud cover are February and November (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 49).
Average visibility in September
Kelham, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).
