September weather forecastChâteauneuf, Switzerland
September
Weather in September
The first month of the autumn, September, is also a fresh month in Châteauneuf, Switzerland, with an average temperature fluctuating between 3.3°C (37.9°F) and 12.3°C (54.1°F).Temperature
A mild drop in Châteauneuf's average high-temperature is observed in September, transitioning from a comfortable 16.7°C (62.1°F) in August to a cool 12.3°C (54.1°F). An average low-temperature of 3.3°C (37.9°F) is observed in Châteauneuf during the September nights.Humidity
In Châteauneuf, the average relative humidity in September is 82%.Rainfall
In Châteauneuf, in September, during 19.4 rainfall days, 70mm (2.76") of precipitation is typically accumulated. In Châteauneuf, during the entire year, the rain falls for 226.6 days and collects up to 1272mm (50.08") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Châteauneuf, the average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 06:51 and sunset at 20:09. On the last day of September, sunrise is at 07:28 and sunset at 19:12 CEST.
Sunshine
In Châteauneuf, the average sunshine in September is 8.3h.UV index
In Châteauneuf, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 3 during September translates into the following directions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Châteauneuf, Switzerland
- Average high temperature in September: 12.3°C
The warmest month (with the highest average high temperature) is August (16.7°C).
The month with the lowest average high temperature is January (-2.6°C).
- Average low temperature in September: 3.3°C
The month with the highest average low temperature is August (6.4°C).
The coldest month (with the lowest average low temperature) is February (-11.1°C).
Average pressure in September
Châteauneuf, Switzerland
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in September
Châteauneuf, Switzerland
- Average wind speed in September: 6.4km/h
The windiest month (with the highest average wind speed) is December (8.3km/h).
The calmest month (with the lowest average wind speed) is August (6.2km/h).
Average humidity in September
Châteauneuf, Switzerland
- Average humidity in September: 82%
The month with the highest relative humidity is March (90%).
The months with the lowest relative humidity are July and August (79%).
Average rainfall in September
Châteauneuf, Switzerland
- Average rainfall in September: 70mm
The wettest month (with the highest rainfall) is May (158mm).
The driest month (with the least rainfall) is October (63mm).
Average rainfall days in September
Châteauneuf, Switzerland
- Average rainfall days in September: 19.4 days
The month with the highest number of rainy days is May (24.9 days).
The month with the least rainy days is December (13.3 days).
Average snowfall in September
Châteauneuf, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (175mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Châteauneuf, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Châteauneuf, Switzerland
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 8h and 18min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in September
Châteauneuf, Switzerland
- Average sunshine days in September: 8.5 days
The month with the most sunshine days is October (14.8 days).
The month with the least sunshine days is May (4.2 days).
Average UV index in September
Châteauneuf, Switzerland
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in September
Châteauneuf, Switzerland
- Average cloud cover in September: 41
The months with the most cloud cover are February and March (Cloud cover 53).
The month with the least cloud cover is October (Cloud cover 36).
Average visibility in September
Châteauneuf, Switzerland
- Average visibility in September: 7km
The months with the highest visibility are June, July, August, October, November and December (8km).
The month with the lowest visibility is March (6km).
