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 advent of September brings an average high-temperature of a comfortable 17.7°C (63.9°F), almost identical to the preceding month. In Hemley, the nighttime temperature shows a slight difference from the daytime high, averaging to a still refreshing 13.8°C (56.8°F) during September.Humidity
In Hemley, the average relative humidity in September is 77%.Rainfall
In Hemley, in September, during 11.8 rainfall days, 26mm (1.02") of precipitation is typically accumulated. Throughout the year, in Hemley, United Kingdom, there are 168.5 rainfall days, and 389mm (15.31") of precipitation is accumulated.Snowfall
In Hemley, snow does not fall in April through October.Daylight
In September, the average length of the day in Hemley is 12h and 39min.On the first day of the month, sunrise is at 6:07 am and sunset at 7:41 pm. On the last day of September, in Hemley, sunrise is at 6:54 am and sunset at 6:34 pm BST.
Sunshine
The average sunshine in September is 8h.UV index
The average daily maximum UV index in September in Hemley is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 4 in September translates into this advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Hemley?
What is the average humidity in September in Hemley?
How much does it rain in Hemley in September?
When it does not snow in Hemley?
How many hours of daylight does Hemley have in September?
When are sunrise and sunset in September in Hemley?
How many hours of sunshine does Hemley have in September?
How high is the UV index in September in Hemley?
Average temperature in September
Hemley, United Kingdom
- Average high temperature in September: 17.7°C
The warmest month (with the highest average high temperature) is August (20°C).
The month with the lowest average high temperature is January (7°C).
- Average low temperature in September: 13.8°C
The month with the highest average low temperature is August (15.7°C).
The coldest month (with the lowest average low temperature) is January (4°C).
Average pressure in September
Hemley, 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 (1010.5mbar).
Average wind speed in September
Hemley, United Kingdom
- Average wind speed in September: 19.6km/h
The windiest month (with the highest average wind speed) is December (26.4km/h).
The calmest month (with the lowest average wind speed) is July (17.2km/h).
Average humidity in September
Hemley, United Kingdom
- Average humidity in September: 77%
The months with the highest relative humidity are January and December (84%).
The month with the lowest relative humidity is August (76%).
Average rainfall in September
Hemley, United Kingdom
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is October (46mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in September
Hemley, United Kingdom
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is September (11.8 days).
Average snowfall in September
Hemley, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (22mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Hemley, 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
Hemley, 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: 8h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in September
Hemley, United Kingdom
- Average sunshine days in September: 15.1 days
The months with the most sunshine days are April and September (15.1 days).
The month with the least sunshine days is February (11.1 days).
Average UV index in September
Hemley, 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
Hemley, United Kingdom
- Average cloud cover in September: 41
The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 41).
Average visibility in September
Hemley, 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).
