September weather forecastChaum, France

September

Weather in September

The first month of the autumn, September, is still a comfortable month in Chaum, France, with temperature in the range of an average high of 18°C (64.4°F) and an average low of 7.5°C (45.5°F).

Temperature

The advent of September brings a slight shift in average high-temperature, moving from an agreeable 21.7°C (71.1°F) in August to a comfortable 18°C (64.4°F). In the month of September, the temperature generally rests at an average low of 7.5°C (45.5°F).

Humidity

The average relative humidity in September in Chaum, France, is 73%.

Rainfall

In September, in Chaum, the rain falls for 12.8 days. Throughout September, 45mm (1.77") of precipitation is accumulated. In Chaum, during the entire year, the rain falls for 149.7 days and collects up to 817mm (32.17") of precipitation.

Snowfall

Months with snowfall in Chaum are January through June, August through December. In Chaum, in September, snow falls for 0.4 days, with typically accumulated 20mm (0.79") of snow. Throughout the year, in Chaum, there are 90.2 snowfall days, and 2798mm (110.16") of snow is accumulated.

Daylight

The average length of the day in September is 12h and 29min.
On the first day of September in Chaum, sunrise is at 07:22 and sunset at 20:31. On the last day of the month, sunrise is at 07:54 and sunset at 19:40 CEST.

Sunshine

In September, the average sunshine in Chaum is 9.4h.

UV index

In Chaum, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 4 during September translates into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. It's recommended to limit sun exposure when its radiation is at its peak during midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.

Frequently asked questions

The high-temperature, in September, in Chaum, is 18°C (64.4°F), while the low-temperature averages to 7.5°C (45.5°F).

The average relative humidity in September is 73%.

In September, in Chaum, the rain falls for 12.8 days. Throughout September, 45mm (1.77") of precipitation is accumulated.

In Chaum, during September, snow falls for 0.4 days and regularly aggregates up to 20mm (0.79") of snow.

The average day length in September in Chaum is 12h and 29min.

In September, on the first day of the month, sunrise is at 07:22 and sunset at 20:31. On the last day of the month, in Chaum, France, sunrise is at 07:54 and sunset at 19:40 CEST.

In Chaum, the average sunshine duration in September is 9.4h.

In Chaum, France, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Chaum, France

  • Average high temperature in September: 18°C

The warmest months (with the highest average high temperature) are July and August (21.7°C).
The month with the lowest average high temperature is February (3.2°C).

  • Average low temperature in September: 7.5°C

The month with the highest average low temperature is August (10.5°C).
The coldest month (with the lowest average low temperature) is February (-4.3°C).

Average pressure in September
Chaum, France

  • Average pressure in September: 1018mbar

The month with the highest atmospheric pressure is December (1021.7mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).

Average wind speed in September
Chaum, France

  • Average wind speed in September: 5.7km/h

The windiest month (with the highest average wind speed) is February (8.8km/h).
The calmest month (with the lowest average wind speed) is August (5.6km/h).

Average humidity in September
Chaum, France

  • Average humidity in September: 73%

The months with the highest relative humidity are February and March (81%).
The months with the lowest relative humidity are July and August (70%).

Average rainfall in September
Chaum, France

  • Average rainfall in September: 45mm

The wettest month (with the highest rainfall) is May (94mm).
The driest month (with the least rainfall) is February (43mm).

Average rainfall days in September
Chaum, France

  • Average rainfall days in September: 12.8 days

The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is January (5.9 days).

Average snowfall in September
Chaum, France

  • Average snowfall in September: 20mm

The month with the highest snowfall is January (479mm).
The month with the least snowfall is July (0mm).

Average snowfall days in September
Chaum, France

  • Average snowfall days in September: 0.4 days

The month with the highest number of snowfall days is January (15.3 days).
The month with the least snowfall days is July (0 days).

Average daylight in September /
Average sunshine in September
Chaum, France

  • Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in September: 9h and 24min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is November (Average sunshine: 6h and 24min).

Average sunshine days in September
Chaum, France

  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is October (17.1 days).
The month with the least sunshine days is June (6.9 days).

Average UV index in September
Chaum, France

  • Average UV index in September: 4

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in September
Chaum, France

  • Average cloud cover in September: 22

The month with the most cloud cover is April (Cloud cover 38).
The months with the least cloud cover are July, August and September (Cloud cover 22).

Average visibility in September
Chaum, France

  • Average visibility in September: 9km

The months with the highest visibility are February, March, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January and April (8km).