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
The transition into September is marked with an average high-temperature of a still refreshing 15.8°C (60.4°F), showing an insignificant shift from August's 17.1°C (62.8°F). September nights in Pren-gwyn document an average temperature reading of 11.3°C (52.3°F).Humidity
The months with the highest humidity in Pren-gwyn are January, August, September and December, with an average relative humidity of 86%.Rainfall
In Pren-gwyn, United Kingdom, in September, during 17.3 rainfall days, 59mm (2.32") of precipitation is typically accumulated. In Pren-gwyn, United Kingdom, during the entire year, the rain falls for 227.1 days and collects up to 784mm (30.87") of precipitation.Snowfall
May through November are months without snowfall.Daylight
The average length of the day in September is 12h and 39min.On the first day of the month, sunrise is at 6:29 am and sunset at 8:04 pm. On the last day of September, in Pren-gwyn, sunrise is at 7:17 am and sunset at 6:56 pm BST.
Sunshine
The average sunshine in September in Pren-gwyn is 6.8h.UV index
The months with the highest UV index in Pren-gwyn, United Kingdom, are May through September, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 4 during September leads to these instructions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Frequently asked questions
What are the temperatures in Pren-gwyn in September?
What are the most humid months in Pren-gwyn?
What is the average humidity in September in Pren-gwyn?
How much does it rain in Pren-gwyn in September?
When it does not snow in Pren-gwyn?
What is the average length of the day in September in Pren-gwyn?
What time are sunrise and sunset in September in Pren-gwyn?
How many hours of sunshine does Pren-gwyn have in September?
When is the highest UV index in Pren-gwyn?
What is the UV index intensity in September in Pren-gwyn?
Average temperature in September
Pren-gwyn, United Kingdom
- Average high temperature in September: 15.8°C
The warmest month (with the highest average high temperature) is July (17.3°C).
The months with the lowest average high temperature are January and February (7.3°C).
- Average low temperature in September: 11.3°C
The month with the highest average low temperature is August (12.6°C).
The coldest month (with the lowest average low temperature) is February (3.8°C).
Average pressure in September
Pren-gwyn, United Kingdom
- Average pressure in September: 1016.3mbar
The month with the highest atmospheric pressure is May (1016.5mbar).
The month with the lowest atmospheric pressure is November (1009.4mbar).
Average wind speed in September
Pren-gwyn, United Kingdom
- Average wind speed in September: 17.5km/h
The windiest month (with the highest average wind speed) is December (23.8km/h).
The calmest month (with the lowest average wind speed) is June (14.8km/h).
Average humidity in September
Pren-gwyn, United Kingdom
- Average humidity in September: 86%
The months with the highest relative humidity are January, August, September and December (86%).
The month with the lowest relative humidity is April (82%).
Average rainfall in September
Pren-gwyn, United Kingdom
- Average rainfall in September: 59mm
The wettest months (with the highest rainfall) are November and December (92mm).
The driest month (with the least rainfall) is May (37mm).
Average rainfall days in September
Pren-gwyn, United Kingdom
- Average rainfall days in September: 17.3 days
The months with the highest number of rainy days are November and December (21.7 days).
The month with the least rainy days is April (15.8 days).
Average snowfall in September
Pren-gwyn, United Kingdom
- Average snowfall in September: 0mm
The months with the highest snowfall are January and December (9mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Pren-gwyn, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.7 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
Pren-gwyn, 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: 6h and 5min
The month with the most sunshine is May (Average sunshine: 8h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Pren-gwyn, United Kingdom
- Average sunshine days in September: 9.4 days
The month with the most sunshine days is May (12.9 days).
The month with the least sunshine days is December (5.7 days).
Average UV index in September
Pren-gwyn, 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, November and December (UV index 2).
Average cloud cover in September
Pren-gwyn, United Kingdom
- Average cloud cover in September: 52
The month with the most cloud cover is December (Cloud cover 64).
The months with the least cloud cover are April and May (Cloud cover 48).
Average visibility in September
Pren-gwyn, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Pren-gwyn, United Kingdom
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