Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September begins with an average high-temperature of an enjoyable 18.4°C (65.1°F), reflecting close similarity to the preceding month. September nights experience a consistent temperature drop to a cool 12.7°C (54.9°F).Humidity
In Witnesham, the average relative humidity in September is 77%.Rainfall
In September, in Witnesham, the rain falls for 12.2 days. Throughout September, 27mm (1.06") of precipitation is accumulated. In Witnesham, during the entire year, the rain falls for 175.8 days and collects up to 418mm (16.46") of precipitation.Snowfall
April through October are months without snowfall in Witnesham, United Kingdom.Daylight
In Witnesham, the average length of the day in September is 12h and 39min.On the first day of September in Witnesham, sunrise is at 6:07 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:34 pm BST.
Sunshine
In September, the average sunshine is 7.8h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A typical high UV index of 4 in September suggests the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
What are September temperatures in Witnesham?
What is the average humidity in September in Witnesham?
How many days does it rain in September in Witnesham?
When it does not snow in Witnesham?
What is the average length of the day in September in Witnesham?
When are sunrise and sunset in September in Witnesham?
How long on average sun shines in September in Witnesham?
What is the UV index reading in September in Witnesham?
Average temperature in September
Witnesham, United Kingdom
- Average high temperature in September: 18.4°C
The warmest month (with the highest average high temperature) is August (20.9°C).
The month with the lowest average high temperature is January (6.5°C).
- Average low temperature in September: 12.7°C
The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is January (3.1°C).
Average pressure in September
Witnesham, 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 (1010.4mbar).
Average wind speed in September
Witnesham, United Kingdom
- Average wind speed in September: 16.2km/h
The windiest month (with the highest average wind speed) is December (21.9km/h).
The calmest month (with the lowest average wind speed) is July (14.7km/h).
Average humidity in September
Witnesham, United Kingdom
- Average humidity in September: 77%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Witnesham, United Kingdom
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is December (48mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in September
Witnesham, United Kingdom
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is September (12.2 days).
Average snowfall in September
Witnesham, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (25mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Witnesham, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.6 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
Witnesham, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is August (Average sunshine: 8h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Witnesham, United Kingdom
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (10.8 days).
Average UV index in September
Witnesham, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Witnesham, United Kingdom
- Average cloud cover in September: 43
The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 43).
Average visibility in September
Witnesham, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are March, June, August and September (10km).
The months with the lowest visibility are January, February, April, May, July, October, November and December (9km).
Witnesham, United Kingdom
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