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
Welcoming September, Penparcau notes an average high-temperature of a mild 15.5°C (59.9°F), nearly consistent with August's 17°C (62.6°F). Throughout September, a modest shift from daytime highs is anticipated, with an average low-temperature of 10.7°C (51.3°F).Humidity
The average relative humidity in September is 86%.Rainfall
In September, the rain falls for 11.2 days. Throughout September, 23mm (0.91") of precipitation is accumulated. Throughout the year, there are 151.5 rainfall days, and 343mm (13.5") of precipitation is accumulated.Snowfall
In Penparcau, snow does not fall in May through November.Daylight
The average length of the day in September is 12h and 40min.On the first day of the month, sunrise is at 6:28 am and sunset at 8:03 pm. On the last day of September, sunrise is at 7:16 am and sunset at 6:55 pm BST.
Sunshine
The average sunshine in September is 6.5h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: In September, a regular UV index of 4 translates into these guidelines:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the month with the highest UV index?
What is the UV index reading in September?
Average temperature in September
Penparcau, United Kingdom
- Average high temperature in September: 15.5°C
The warmest month (with the highest average high temperature) is July (17.3°C).
The month with the lowest average high temperature is January (6.8°C).
- Average low temperature in September: 10.7°C
The month with the highest average low temperature is August (12.5°C).
The coldest month (with the lowest average low temperature) is February (3.6°C).
Average pressure in September
Penparcau, United Kingdom
- Average pressure in September: 1016.2mbar
The month with the highest atmospheric pressure is May (1016.4mbar).
The month with the lowest atmospheric pressure is November (1009.3mbar).
Average wind speed in September
Penparcau, United Kingdom
- Average wind speed in September: 17.1km/h
The windiest month (with the highest average wind speed) is December (23.6km/h).
The calmest month (with the lowest average wind speed) is June (14.5km/h).
Average humidity in September
Penparcau, United Kingdom
- Average humidity in September: 86%
The month with the highest relative humidity is August (87%).
The month with the lowest relative humidity is April (82%).
Average rainfall in September
Penparcau, United Kingdom
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is December (39mm).
The driest month (with the least rainfall) is May (14mm).
Average rainfall days in September
Penparcau, United Kingdom
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is December (14.7 days).
The months with the least rainy days are April and May (11.1 days).
Average snowfall in September
Penparcau, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (10mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Penparcau, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.1 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
Penparcau, 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 3min
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 36min).
Average sunshine days in September
Penparcau, United Kingdom
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is March (16.5 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in September
Penparcau, 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
Penparcau, United Kingdom
- Average cloud cover in September: 54
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 49).
Average visibility in September
Penparcau, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August and September (9km).
