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
September
Weather in September
Temperature
September experiences an average high-temperature of a refreshing 18.5°C (65.3°F), barely different from August's 21.3°C (70.3°F). The temperature dips to an average of 11°C (51.8°F) during September nights.Humidity
In September, the average relative humidity is 78%.Rainfall
In Therfield, during September, the rain falls for 8.1 days and regularly aggregates up to 10mm (0.39") of precipitation. In Therfield, during the entire year, the rain falls for 115.9 days and collects up to 163mm (6.42") of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September is 12h and 39min.On the first day of the month, sunrise is at 6:12 am and sunset at 7:47 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:39 pm BST.
Sunshine
In September, the average sunshine is 7.2h.UV index
In September, the average daily maximum UV index in Therfield is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum UV index of 4 in September translates into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Therfield in September?
What is the average humidity in September in Therfield?
How much does it rain in Therfield in September?
When it does not snow in Therfield?
How many hours of daylight does Therfield have in September?
When is the sunrise / sunset in September in Therfield?
How many hours of sunshine does Therfield have in September?
How high is the UV index in September in Therfield?
Average temperature in September
Therfield, United Kingdom
- Average high temperature in September: 18.5°C
The warmest month (with the highest average high temperature) is July (21.6°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in September: 11°C
The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is January (1.7°C).
Average pressure in September
Therfield, 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
Therfield, United Kingdom
- Average wind speed in September: 13.2km/h
The windiest month (with the highest average wind speed) is February (18.2km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).
Average humidity in September
Therfield, United Kingdom
- Average humidity in September: 78%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Therfield, United Kingdom
- Average rainfall in September: 10mm
The wettest month (with the highest rainfall) is December (20mm).
The driest month (with the least rainfall) is April (9mm).
Average rainfall days in September
Therfield, United Kingdom
- Average rainfall days in September: 8.1 days
The month with the highest number of rainy days is July (11.7 days).
The month with the least rainy days is September (8.1 days).
Average snowfall in September
Therfield, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (11mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Therfield, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.9 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
Therfield, 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 1min
The month with the most sunshine is August (Average sunshine: 8h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in September
Therfield, United Kingdom
- Average sunshine days in September: 18.6 days
The month with the most sunshine days is March (19.4 days).
The month with the least sunshine days is July (14.7 days).
Average UV index in September
Therfield, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are June and 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
Therfield, United Kingdom
- Average cloud cover in September: 48
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 48).
Average visibility in September
Therfield, 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).
