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
September's advent denotes a minor fluctuation in the average high-temperature to a still enjoyable 16.4°C (61.5°F) from August's 17.5°C (63.5°F). In September, a low-temperature average of 11.9°C (53.4°F) is characteristic of Ffairfach, marking a minor shift from daytime temperatures.Humidity
In Ffairfach, United Kingdom, the average relative humidity in September is 84%.Rainfall
In Ffairfach, in September, during 17.5 rainfall days, 54mm (2.13") of precipitation is typically accumulated. In Ffairfach, United Kingdom, during the entire year, the rain falls for 219.6 days and collects up to 745mm (29.33") of precipitation.Snowfall
April through November are months without snowfall.Daylight
In Ffairfach, the average length of the day in September is 12h and 39min.On the first day of the month, sunrise is at 6:28 am and sunset at 8:02 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 7h.UV index
The months with the highest UV index in Ffairfach are May through September, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In September, an average UV index of 4 transforms into the following instructions:
Act with care - The suggestion to avoid sunburn is emphasized. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Ffairfach?
What is the average humidity in September in Ffairfach?
How much does it rain in Ffairfach in September?
When it does not snow in Ffairfach?
How many hours of daylight does Ffairfach have in September?
What time are sunrise and sunset in September in Ffairfach?
How long on average sun shines in September in Ffairfach?
When is the highest UV index in Ffairfach?
What is the UV index intensity in September in Ffairfach?
Average temperature in September
Ffairfach, United Kingdom
- Average high temperature in September: 16.4°C
The warmest month (with the highest average high temperature) is July (17.8°C).
The month with the lowest average high temperature is February (7.7°C).
- Average low temperature in September: 11.9°C
The month with the highest average low temperature is August (13.6°C).
The coldest month (with the lowest average low temperature) is February (4.5°C).
Average pressure in September
Ffairfach, United Kingdom
- Average pressure in September: 1016.6mbar
The month with the highest atmospheric pressure is May (1016.7mbar).
The month with the lowest atmospheric pressure is November (1009.7mbar).
Average wind speed in September
Ffairfach, United Kingdom
- Average wind speed in September: 18.1km/h
The windiest month (with the highest average wind speed) is December (23.9km/h).
The calmest month (with the lowest average wind speed) is June (15.4km/h).
Average humidity in September
Ffairfach, United Kingdom
- Average humidity in September: 84%
The months with the highest relative humidity are January, August, October, November and December (85%).
The month with the lowest relative humidity is April (81%).
Average rainfall in September
Ffairfach, United Kingdom
- Average rainfall in September: 54mm
The wettest month (with the highest rainfall) is December (84mm).
The driest month (with the least rainfall) is May (37mm).
Average rainfall days in September
Ffairfach, United Kingdom
- Average rainfall days in September: 17.5 days
The month with the highest number of rainy days is December (21.5 days).
The month with the least rainy days is April (15.1 days).
Average snowfall in September
Ffairfach, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is December (8mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Ffairfach, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.3 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
Ffairfach, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 7h and 0min
The months with the most sunshine are April and May (Average sunshine: 8h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Ffairfach, United Kingdom
- Average sunshine days in September: 9.7 days
The month with the most sunshine days is May (12.8 days).
The month with the least sunshine days is August (6.5 days).
Average UV index in September
Ffairfach, 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
Ffairfach, United Kingdom
- Average cloud cover in September: 51
The month with the most cloud cover is December (Cloud cover 63).
The months with the least cloud cover are April and May (Cloud cover 46).
Average visibility in September
Ffairfach, 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).
Ffairfach, United Kingdom
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