September weather forecastHammoon, United Kingdom
September
Weather in September
September, the first month of the autumn in Hammoon, is still a refreshing month, with an average temperature fluctuating between 17.7°C (63.9°F) and 10°C (50°F).Temperature
A minimal variation is noted in Hammoon's average high-temperature at the onset of September, reaching a still enjoyable 17.7°C (63.9°F) from August's 19.8°C (67.6°F). Hammoon's average low-temperature for the month of September records at a cool 10°C (50°F).Humidity
In September, the average relative humidity is 85%.Rainfall
September is the month with the least rainfall. Rain falls for 10.8 days and accumulates 20mm (0.79") of precipitation.Snowfall
April through October are months without snowfall in Hammoon.Daylight
The average length of the day in September is 12h and 38min.On the first day of September in Hammoon, sunrise is at 6:23 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:48 pm BST.
Sunshine
In Hammoon, the average sunshine in September is 6.4h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index in Hammoon. 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: A maximum UV index of 4 in September translates into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hammoon, United Kingdom
- Average high temperature in September: 17.7°C
The warmest month (with the highest average high temperature) is July (20.4°C).
The month with the lowest average high temperature is January (7.3°C).
- Average low temperature in September: 10°C
The month with the highest average low temperature is August (12.1°C).
The coldest month (with the lowest average low temperature) is February (2.3°C).
Average pressure in September
Hammoon, United Kingdom
- Average pressure in September: 1017mbar
The month with the highest atmospheric pressure is September (1017mbar).
The month with the lowest atmospheric pressure is November (1010.3mbar).
Average wind speed in September
Hammoon, United Kingdom
- Average wind speed in September: 12.8km/h
The windiest month (with the highest average wind speed) is February (17.1km/h).
The calmest month (with the lowest average wind speed) is July (12.4km/h).
Average humidity in September
Hammoon, United Kingdom
- Average humidity in September: 85%
The months with the highest relative humidity are January, November and December (90%).
The month with the lowest relative humidity is July (82%).
Average rainfall in September
Hammoon, United Kingdom
- Average rainfall in September: 20mm
The wettest month (with the highest rainfall) is December (50mm).
The driest month (with the least rainfall) is September (20mm).
Average rainfall days in September
Hammoon, United Kingdom
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is November (16.6 days).
The month with the least rainy days is September (10.8 days).
Average snowfall in September
Hammoon, United Kingdom
- Average snowfall in September: 0mm
The months with the highest snowfall are January and February (11mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Hammoon, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.9 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
Hammoon, United Kingdom
- Average daylight in September: 12h and 36min
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: 6h and 24min
The month with the most sunshine is July (Average sunshine: 7h and 30min).
The month with the least sunshine is November (Average sunshine: 3h and 30min).
Average sunshine days in September
Hammoon, United Kingdom
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is September (15.9 days).
The month with the least sunshine days is November (10.4 days).
Average UV index in September
Hammoon, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Hammoon, United Kingdom
- Average cloud cover in September: 57
The month with the most cloud cover is November (Cloud cover 66).
The months with the least cloud cover are April and May (Cloud cover 54).
Average visibility in September
Hammoon, United Kingdom
- Average visibility in September: 8km
The month with the highest visibility is February (9km).
The months with the lowest visibility are January, March, April, May, June, July, August, September, October, November and December (8km).





