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
With the start of September, Isfield measures an average high-temperature of a still enjoyable 17.8°C (64°F), not significantly differing from August's 19.3°C (66.7°F). The nights of September cool down to an average low of 13.4°C (56.1°F), subtly lower than daytime highs.Humidity
With an average relative humidity of 79%, September is the least humid month.Rainfall
In Isfield, United Kingdom, during September, the rain falls for 10.8 days and regularly aggregates up to 22mm (0.87") of precipitation. In Isfield, during the entire year, the rain falls for 146.5 days and collects up to 250mm (9.84") of precipitation.Snowfall
In Isfield, snow does not fall in March, May through October.Daylight
In September, the average length of the day in Isfield is 12h and 38min.On the first day of the month, sunrise is at 6:14 am and sunset at 7:44 pm. On the last day of September, in Isfield, sunrise is at 6:59 am and sunset at 6:39 pm BST.
Sunshine
In September, the average sunshine is 8.2h.UV index
The average daily maximum UV index in September in Isfield, United Kingdom, is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The UV index of 4 during September translates into the following guidance:
Take measures. Individuals with light skin might experience burns in under 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct 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 is the usual temperature for Isfield in September?
What is the least humid month in Isfield?
What is the average humidity in September in Isfield?
How much does it rain in Isfield in September?
When it does not snow in Isfield?
How many hours of daylight does Isfield have in September?
When are sunrise and sunset in September in Isfield?
How long on average sun shines in September in Isfield?
What is the UV index intensity in September in Isfield?
Average temperature in September
Isfield, United Kingdom
- Average high temperature in September: 17.8°C
The warmest month (with the highest average high temperature) is August (19.3°C).
The month with the lowest average high temperature is February (7.5°C).
- Average low temperature in September: 13.4°C
The month with the highest average low temperature is August (15°C).
The coldest month (with the lowest average low temperature) is January (4.6°C).
Average pressure in September
Isfield, United Kingdom
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1011.1mbar).
Average wind speed in September
Isfield, United Kingdom
- Average wind speed in September: 19.7km/h
The windiest month (with the highest average wind speed) is December (26.6km/h).
The calmest month (with the lowest average wind speed) is July (17.9km/h).
Average humidity in September
Isfield, United Kingdom
- Average humidity in September: 79%
The months with the highest relative humidity are January and December (84%).
The month with the lowest relative humidity is September (79%).
Average rainfall in September
Isfield, United Kingdom
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is November (32mm).
The driest month (with the least rainfall) is April (12mm).
Average rainfall days in September
Isfield, United Kingdom
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is November (15 days).
The months with the least rainy days are April and June (10.6 days).
Average snowfall in September
Isfield, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (4mm).
The months with the least snowfall are March, May, June, July, August, September and October (0mm).
Average snowfall days in September
Isfield, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 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
Isfield, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The months with the least sunshine are February and November (Average sunshine: 3h and 54min).
Average sunshine days in September
Isfield, United Kingdom
- Average sunshine days in September: 16 days
The month with the most sunshine days is March (16.3 days).
The month with the least sunshine days is November (10.9 days).
Average UV index in September
Isfield, 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 and November (UV index 2).
Average cloud cover in September
Isfield, United Kingdom
- Average cloud cover in September: 41
The months with the most cloud cover are January, February and November (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility in September
Isfield, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
