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
September registers an average high-temperature of a moderate 15.1°C (59.2°F), slightly varied from August's 16.6°C (61.9°F). Recording a slight drop from the daily maximum, Caerhun notes an average low temperature of 11.7°C (53.1°F) in the month of September.Humidity
In September, the average relative humidity is 85%.Rainfall
In Caerhun, in September, it is raining for 19 days, with typically 56mm (2.2") of accumulated precipitation. In Caerhun, during the entire year, the rain falls for 236.8 days and collects up to 754mm (29.69") of precipitation.Snowfall
May through October are months without snowfall in Caerhun.Daylight
The average length of the day in September is 12h and 40min.On the first day of the month, sunrise is at 6:26 am and sunset at 8:04 pm. On the last day of September, in Caerhun, United Kingdom, sunrise is at 7:16 am and sunset at 6:54 pm BST.
Sunshine
The average sunshine in September in Caerhun is 6.2h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Caerhun?
What is the average humidity in September in Caerhun?
How much does it rain in Caerhun in September?
When it does not snow in Caerhun?
How many hours of daylight does Caerhun have in September?
When are sunrise and sunset in September in Caerhun?
How long on average sun shines in September in Caerhun?
When is the highest UV index in Caerhun?
What is the UV index intensity in September in Caerhun?
Average temperature in September
Caerhun, United Kingdom
- Average high temperature in September: 15.1°C
The warmest month (with the highest average high temperature) is July (16.7°C).
The month with the lowest average high temperature is February (7°C).
- Average low temperature in September: 11.7°C
The month with the highest average low temperature is August (13.2°C).
The coldest month (with the lowest average low temperature) is February (4.3°C).
Average pressure in September
Caerhun, United Kingdom
- Average pressure in September: 1015.7mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.9mbar).
Average wind speed in September
Caerhun, United Kingdom
- Average wind speed in September: 18.7km/h
The windiest month (with the highest average wind speed) is December (25.3km/h).
The calmest month (with the lowest average wind speed) is June (15.1km/h).
Average humidity in September
Caerhun, United Kingdom
- Average humidity in September: 85%
The month with the highest relative humidity is August (86%).
The month with the lowest relative humidity is April (81%).
Average rainfall in September
Caerhun, United Kingdom
- Average rainfall in September: 56mm
The wettest month (with the highest rainfall) is November (87mm).
The driest month (with the least rainfall) is May (37mm).
Average rainfall days in September
Caerhun, United Kingdom
- Average rainfall days in September: 19 days
The month with the highest number of rainy days is August (23.6 days).
The month with the least rainy days is April (16.3 days).
Average snowfall in September
Caerhun, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (19mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Caerhun, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.9 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
Caerhun, 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: 6h and 1min
The month with the most sunshine is May (Average sunshine: 7h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in September
Caerhun, United Kingdom
- Average sunshine days in September: 7.7 days
The month with the most sunshine days is April (11.4 days).
The month with the least sunshine days is December (4.2 days).
Average UV index in September
Caerhun, 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
Caerhun, United Kingdom
- Average cloud cover in September: 56
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is May (Cloud cover 49).
Average visibility in September
Caerhun, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are September and October (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, November and December (9km).
