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
The shift from August to September is characterized by an average high-temperature of a comfortable 17.5°C (63.5°F), not significantly different from the 20.2°C (68.4°F) of August. An average nighttime temperature of 10.4°C (50.7°F) is noted in Braithwell during the month of September.Humidity
The average relative humidity in September is 79%.Rainfall
In Braithwell, in September, during 5.1 rainfall days, 6mm (0.24") of precipitation is typically accumulated. Throughout the year, in Braithwell, there are 85 rainfall days, and 114mm (4.49") of precipitation is accumulated.Snowfall
May through November are months without snowfall.Daylight
In Braithwell, the average length of the day in September is 12h and 41min.On the first day of the month, sunrise is at 6:15 am and sunset at 7:54 pm. On the last day of September, sunrise is at 7:05 am and sunset at 6:43 pm BST.
Sunshine
In Braithwell, the average sunshine in September is 7.1h.UV index
The average daily maximum UV index in September in Braithwell is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 4 during September leads to these instructions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Braithwell in September?
What is the average humidity in September in Braithwell?
How much does it rain in Braithwell in September?
When it does not snow in Braithwell?
How many hours of daylight does Braithwell have in September?
What time are sunrise and sunset in September in Braithwell?
How many hours of sunshine does Braithwell have in September?
How high is the UV index in September in Braithwell?
Average temperature in September
Braithwell, United Kingdom
- Average high temperature in September: 17.5°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 (5.8°C).
- Average low temperature in September: 10.4°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 (1.5°C).
Average pressure in September
Braithwell, United Kingdom
- Average pressure in September: 1015.6mbar
The month with the highest atmospheric pressure is May (1016.3mbar).
The month with the lowest atmospheric pressure is November (1009.1mbar).
Average wind speed in September
Braithwell, United Kingdom
- Average wind speed in September: 13.2km/h
The windiest month (with the highest average wind speed) is February (17.6km/h).
The calmest month (with the lowest average wind speed) is June (12.3km/h).
Average humidity in September
Braithwell, United Kingdom
- Average humidity in September: 79%
The months with the highest relative humidity are January, November and December (88%).
The month with the lowest relative humidity is August (76%).
Average rainfall in September
Braithwell, United Kingdom
- Average rainfall in September: 6mm
The wettest month (with the highest rainfall) is June (14mm).
The driest month (with the least rainfall) is April (4mm).
Average rainfall days in September
Braithwell, United Kingdom
- Average rainfall days in September: 5.1 days
The month with the highest number of rainy days is July (10.3 days).
The month with the least rainy days is September (5.1 days).
Average snowfall in September
Braithwell, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (6mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Braithwell, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.1 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
Braithwell, United Kingdom
- Average daylight in September: 12h and 4min
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 36min).
- Average sunshine in September: 7h and 1min
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
Braithwell, United Kingdom
- Average sunshine days in September: 22.5 days
The month with the most sunshine days is October (23.2 days).
The month with the least sunshine days is June (17.3 days).
Average UV index in September
Braithwell, 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
Braithwell, United Kingdom
- Average cloud cover in September: 50
The month with the most cloud cover is November (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 50).
Average visibility in September
Braithwell, 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).
