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
Streatham Hill experiences a minor change to a refreshing 19.1°C (66.4°F) in average high-temperature during September, closely reflecting August. An average nighttime temperature of 11.3°C (52.3°F) is witnessed in Streatham Hill throughout September.Humidity
In Streatham Hill, the average relative humidity in September is 76%.Rainfall
In Streatham Hill, during September, the rain falls for 11.9 days and regularly aggregates up to 24mm (0.94") of precipitation. Throughout the year, in Streatham Hill, there are 166.8 rainfall days, and 362mm (14.25") of precipitation is accumulated.Snowfall
In Streatham Hill, snow does not fall in May through October.Daylight
In Streatham Hill, the average length of the day in September is 12h and 38min.On the first day of the month, sunrise is at 6:14 am and sunset at 7:46 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:40 pm BST.
Sunshine
In September, the average sunshine is 7.1h.UV index
In Streatham Hill, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 4 during September translates into these guidelines:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Streatham Hill?
What is the average humidity in September in Streatham Hill?
How much does it rain in Streatham Hill in September?
When it does not snow in Streatham Hill?
How many hours of daylight does Streatham Hill have in September?
When is the sunrise / sunset in September in Streatham Hill?
How many hours of sunshine does Streatham Hill have in September?
How high is the UV index in September in Streatham Hill?
Average temperature in September
Streatham Hill, United Kingdom
- Average high temperature in September: 19.1°C
The warmest month (with the highest average high temperature) is July (22.3°C).
The month with the lowest average high temperature is January (6.8°C).
- Average low temperature in September: 11.3°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (2.2°C).
Average pressure in September
Streatham Hill, United Kingdom
- Average pressure in September: 1016.9mbar
The month with the highest atmospheric pressure is September (1016.9mbar).
The month with the lowest atmospheric pressure is November (1010.6mbar).
Average wind speed in September
Streatham Hill, United Kingdom
- Average wind speed in September: 12.6km/h
The windiest month (with the highest average wind speed) is February (17.3km/h).
The calmest month (with the lowest average wind speed) is September (12.6km/h).
Average humidity in September
Streatham Hill, United Kingdom
- Average humidity in September: 76%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Streatham Hill, United Kingdom
- Average rainfall in September: 24mm
The wettest months (with the highest rainfall) are June and December (40mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in September
Streatham Hill, United Kingdom
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (11.5 days).
Average snowfall in September
Streatham Hill, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (15mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Streatham Hill, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 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
Streatham Hill, 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: 7h and 54min).
- Average sunshine in September: 7h and 1min
The month with the most sunshine is August (Average sunshine: 7h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in September
Streatham Hill, United Kingdom
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is October (15.9 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in September
Streatham Hill, 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, March, November and December (UV index 2).
Average cloud cover in September
Streatham Hill, United Kingdom
- Average cloud cover in September: 50
The months with the most cloud cover are February and November (Cloud cover 61).
The months with the least cloud cover are April, August and September (Cloud cover 50).
Average visibility in September
Streatham Hill, 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).
Streatham Hill, United Kingdom
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