September weather forecastRéauville, France

September

Weather in September

September, the first month of the autumn in Réauville, is also a moderately hot month, with an average temperature fluctuating between 12.2°C (54°F) and 23.3°C (73.9°F).

Temperature

September indicates a shift in the average high-temperature, from August's warm 28.5°C (83.3°F) to a still moderately hot 23.3°C (73.9°F). The nighttime temperature dips to a fresh 12.2°C (54°F) on average during September.

Humidity

In Réauville, the average relative humidity in September is 69%.

Rainfall

In Réauville, France, in September, during 7 rainfall days, 19mm (0.75") of precipitation is typically accumulated. Throughout the year, in Réauville, there are 111.4 rainfall days, and 380mm (14.96") of precipitation is accumulated.

Snowfall

April through November are months without snowfall.

Daylight

The average length of the day in September in Réauville is 12h and 31min.
On the first day of the month, sunrise is at 07:03 and sunset at 20:16. On the last day of September, sunrise is at 07:37 and sunset at 19:23 CEST.

Sunshine

The average sunshine in September is 9.4h.

UV index

In September, the average daily maximum UV index in Réauville, France, is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: In September, an average UV index of 5 transforms into the following instructions:
Guard yourself - Avoiding sunburn is suggested. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

Frequently asked questions

In September, in Réauville, the average high-temperature is 23.3°C (73.9°F), and the average low-temperature is 12.2°C (54°F). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is appraised at 30°C (86°F).

The average relative humidity in September in Réauville is 69%.

In Réauville, France, in September, it is raining for 7 days, with typically 19mm (0.75") of accumulated precipitation.

April through November are months without snowfall in Réauville.

In Réauville, the average day length in September is 12h and 31min.

On the first day of September, sunrise is at 07:03 and sunset at 20:16. On the last day of the month, sunrise is at 07:37 and sunset at 19:23 CEST.

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

In Réauville, France, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health threat 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
Réauville, France

  • Average high temperature in September: 23.3°C

The warmest month (with the highest average high temperature) is July (28.8°C).
The month with the lowest average high temperature is January (6.8°C).

  • Average low temperature in September: 12.2°C

The months with the highest average low temperature are July and August (15.5°C).
The coldest month (with the lowest average low temperature) is February (0.8°C).

Average pressure in September
Réauville, France

  • Average pressure in September: 1017.8mbar

The month with the highest atmospheric pressure is December (1020.7mbar).
The month with the lowest atmospheric pressure is April (1015mbar).

Average wind speed in September
Réauville, France

  • Average wind speed in September: 9.8km/h

The windiest month (with the highest average wind speed) is May (11.9km/h).
The calmest month (with the lowest average wind speed) is November (9.5km/h).

Average humidity in September
Réauville, France

  • Average humidity in September: 69%

The month with the highest relative humidity is November (83%).
The months with the lowest relative humidity are July and August (62%).

Average rainfall in September
Réauville, France

  • Average rainfall in September: 19mm

The wettest month (with the highest rainfall) is November (83mm).
The driest month (with the least rainfall) is July (16mm).

Average rainfall days in September
Réauville, France

  • Average rainfall days in September: 7 days

The month with the highest number of rainy days is November (12.5 days).
The month with the least rainy days is August (6.8 days).

Average snowfall in September
Réauville, France

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (7mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in September
Réauville, France

  • 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 April, May, June, July, August, September and November (0 days).

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

  • Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in September: 9h and 24min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is November (Average sunshine: 5h and 42min).

Average sunshine days in September
Réauville, France

  • Average sunshine days in September: 20.5 days

The month with the most sunshine days is August (22.7 days).
The month with the least sunshine days is November (15.6 days).

Average UV index in September
Réauville, France

  • Average UV index in September: 5

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September
Réauville, France

  • Average cloud cover in September: 21

The month with the most cloud cover is November (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 14).

Average visibility in September
Réauville, France

  • Average visibility in September: 9km

The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (9km).