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 arrival of September coincides with an average high-temperature of a comfortable 17.6°C (63.7°F), indicating a minimal shift from August's 20.2°C (68.4°F). Harswell's temperature tends to fall to an average low of 10.5°C (50.9°F) during the nights of September.Humidity
The average relative humidity in September is 80%.Rainfall
In September, in Harswell, the rain falls for 12.6 days. Throughout September, 24mm (0.94") of precipitation is accumulated. Throughout the year, in Harswell, there are 168 rainfall days, and 398mm (15.67") of precipitation is accumulated.Snowfall
In Harswell, snow does not fall in April through October.Daylight
In Harswell, the average length of the day in September is 12h and 41min.On the first day of September, sunrise is at 6:12 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:41 pm BST.
Sunshine
In September, the average sunshine in Harswell is 7.1h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Harswell?
What is the average humidity in September in Harswell?
How many days does it rain in September in Harswell?
When it does not snow in Harswell?
How many hours of daylight does Harswell have in September?
When are sunrise and sunset in September in Harswell?
How long on average sun shines in September in Harswell?
How high is the UV index in September in Harswell?
Average temperature in September
Harswell, United Kingdom
- Average high temperature in September: 17.6°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: 10.5°C
The month with the highest average low temperature is August (12.6°C).
The coldest month (with the lowest average low temperature) is January (1.5°C).
Average pressure in September
Harswell, United Kingdom
- Average pressure in September: 1015.5mbar
The month with the highest atmospheric pressure is May (1016.3mbar).
The month with the lowest atmospheric pressure is November (1009mbar).
Average wind speed in September
Harswell, United Kingdom
- Average wind speed in September: 13km/h
The windiest month (with the highest average wind speed) is February (17.1km/h).
The calmest months (with the lowest average wind speed) are June and July (12.1km/h).
Average humidity in September
Harswell, United Kingdom
- Average humidity in September: 80%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (77%).
Average rainfall in September
Harswell, United Kingdom
- Average rainfall in September: 24mm
The wettest months (with the highest rainfall) are October and November (45mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in September
Harswell, United Kingdom
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is April (11.4 days).
Average snowfall in September
Harswell, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (23mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Harswell, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.8 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
Harswell, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in September: 7h and 1min
The months with the most sunshine are July and August (Average sunshine: 7h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in September
Harswell, United Kingdom
- Average sunshine days in September: 14.7 days
The months with the most sunshine days are March and April (14.9 days).
The month with the least sunshine days is August (11.6 days).
Average UV index in September
Harswell, 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
Harswell, United Kingdom
- Average cloud cover in September: 49
The months with the most cloud cover are February and November (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 49).
Average visibility in September
Harswell, 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).
