September weather forecastArlingham, United Kingdom
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Arlingham, United Kingdom, with temperature in the range of an average high of 17.7°C (63.9°F) and an average low of 9.8°C (49.6°F).Temperature
September's onset records an average high-temperature of a still comfortable 17.7°C (63.9°F), a near match to August's 19.8°C (67.6°F). Arlingham experiences a mean temperature of 9.8°C (49.6°F) during September nights.Humidity
In September, the average relative humidity is 84%.Rainfall
The month with the least rainfall is September, when the rain falls for 11.4 days and typically collects 23mm (0.91") of precipitation.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 38min.On the first day of the month, sunrise is at 6:22 am and sunset at 7:56 pm. On the last day of September, sunrise is at 7:09 am and sunset at 6:49 pm BST.
Sunshine
The average sunshine in September in Arlingham is 6.8h.UV index
The months with the highest UV index in Arlingham 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 the average person.Note: In September, a regular UV index of 4 translates into these guidelines:
Prioritize safety - Suggestions to prevent sun damage are offered. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Arlingham, United Kingdom
- Average high temperature in September: 17.7°C
The warmest month (with the highest average high temperature) is July (20.3°C).
The month with the lowest average high temperature is January (6.9°C).
- Average low temperature in September: 9.8°C
The month with the highest average low temperature is August (12.2°C).
The coldest month (with the lowest average low temperature) is January (2.1°C).
Average pressure in September
Arlingham, 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 (1010mbar).
Average wind speed in September
Arlingham, United Kingdom
- Average wind speed in September: 13km/h
The windiest month (with the highest average wind speed) is February (18.1km/h).
The calmest months (with the lowest average wind speed) are June and July (12.8km/h).
Average humidity in September
Arlingham, United Kingdom
- Average humidity in September: 84%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is July (81%).
Average rainfall in September
Arlingham, United Kingdom
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is November (46mm).
The driest month (with the least rainfall) is September (23mm).
Average rainfall days in September
Arlingham, United Kingdom
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is November (15.4 days).
The month with the least rainy days is September (11.4 days).
Average snowfall in September
Arlingham, United Kingdom
- Average snowfall in September: 0mm
The months with the highest snowfall are January and February (15mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Arlingham, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.5 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
Arlingham, 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: 6h and 48min
The month with the most sunshine is July (Average sunshine: 7h and 42min).
The months with the least sunshine are February and November (Average sunshine: 3h and 54min).
Average sunshine days in September
Arlingham, United Kingdom
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is September (16.7 days).
The month with the least sunshine days is November (11.7 days).
Average UV index in September
Arlingham, 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, November and December (UV index 2).
Average cloud cover in September
Arlingham, United Kingdom
- Average cloud cover in September: 53
The month with the most cloud cover is November (Cloud cover 62).
The month with the least cloud cover is April (Cloud cover 52).
Average visibility in September
Arlingham, United Kingdom
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, June, July and December (9km).
The months with the lowest visibility are August, September, October and November (8km).
