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
In Valdahon, entering September brings a subtle temperature decrement, reducing from August's warm 23.8°C (74.8°F) to an enjoyable 19.5°C (67.1°F). In Valdahon, September nights cool down to an average of 9.6°C (49.3°F).Humidity
In September, the average relative humidity is 81%.Rainfall
September is the month with the least rainfall. Rain falls for 11.9 days and accumulates 32mm (1.26") of precipitation.Snowfall
April through September are months without snowfall.Daylight
The average length of the day in September is 12h and 34min.On the first day of September, sunrise is at 06:54 and sunset at 20:14. On the last day of the month, sunrise is at 07:32 and sunset at 19:16 CEST.
Sunshine
The average sunshine in September in Valdahon is 8.5h.UV index
In September, the average daily maximum UV index in Valdahon is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Frequently asked questions
What are the temperatures in Valdahon in September?
What is the average humidity in September in Valdahon?
What is the driest month in Valdahon?
How much does it rain in Valdahon in September?
When it does not snow in Valdahon?
Does it snow in Valdahon in September?
How many hours of daylight does Valdahon have in September?
When is the sunrise / sunset in September in Valdahon?
How many hours of sunshine does Valdahon have in September?
What is the UV index reading in September in Valdahon?
Average temperature in September
Valdahon, France
- Average high temperature in September: 19.5°C
The warmest month (with the highest average high temperature) is August (23.8°C).
The month with the lowest average high temperature is January (4.2°C).
- Average low temperature in September: 9.6°C
The months with the highest average low temperature are July and August (13°C).
The coldest month (with the lowest average low temperature) is January (-0.8°C).
Average pressure in September
Valdahon, France
- Average pressure in September: 1018.7mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is November (1015.6mbar).
Average wind speed in September
Valdahon, France
- Average wind speed in September: 8.9km/h
The windiest month (with the highest average wind speed) is February (13.1km/h).
The calmest month (with the lowest average wind speed) is August (8km/h).
Average humidity in September
Valdahon, France
- Average humidity in September: 81%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is August (78%).
Average rainfall in September
Valdahon, France
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is June (97mm).
The driest month (with the least rainfall) is September (32mm).
Average rainfall days in September
Valdahon, France
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (11.1 days).
Average snowfall in September
Valdahon, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (71mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Valdahon, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Valdahon, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 8h and 3min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The months with the least sunshine are January and December (Average sunshine: 4h and 24min).
Average sunshine days in September
Valdahon, France
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is October (16.9 days).
The month with the least sunshine days is June (8.9 days).
Average UV index in September
Valdahon, France
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Valdahon, France
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Valdahon, France
- Average visibility in September: 8km
The months with the highest visibility are February, March, April, July and August (9km).
The months with the lowest visibility are January, May, June, September, October, November and December (8km).
Valdahon, France
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