September weather forecast
Saint-Hostien, France

September

Weather in September

The first month of the autumn, September, is still a refreshing month in Saint-Hostien, France, with an average temperature ranging between min 7.4°C (45.3°F) and max 18.7°C (65.7°F).

Temperature

With the onset of September, Saint-Hostien experiences a modest temperature adjustment, with the average high-temperature gently receding from a moderately hot 23.3°C (73.9°F) in August to an enjoyable 18.7°C (65.7°F). An average low-temperature of 7.4°C (45.3°F) marks the nights throughout September.

Humidity

In Saint-Hostien, the average relative humidity in September is 78%.

Rainfall

In September, the rain falls for 12.1 days. Throughout September, 29mm (1.14") of precipitation is accumulated. In Saint-Hostien, during the entire year, the rain falls for 157.7 days and collects up to 526mm (20.71") of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September is 12h and 31min.
On the first day of the month, sunrise is at 07:06 and sunset at 20:20. On the last day of September, sunrise is at 07:41 and sunset at 19:26 CEST.

Sunshine

In September, the average sunshine is 8.3h.

UV index

The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: In September, the average maximum UV index of 3 translates into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A hat with a broad brim is indispensable, filtering out up to half of UV rays.

Frequently asked questions

What is the average September temperature in Saint-Hostien?
In September, the average high-temperature and low-temperature in Saint-Hostien, France, are 18.7°C (65.7°F) and 7.4°C (45.3°F) respectively.
What is the average humidity in September in Saint-Hostien?
The average relative humidity in September is 78%.
How much does it rain in Saint-Hostien in September?
In Saint-Hostien, in September, it is raining for 12.1 days, with typically 29mm (1.14") of accumulated precipitation.
When it does not snow in Saint-Hostien?
June through September are months without snowfall in Saint-Hostien, France.
Does it snow in Saint-Hostien in September?
In Saint-Hostien, in September, it doesn't snow. In October, it regularly snows.
How many hours of daylight does Saint-Hostien have in September?
In September, the average day length in Saint-Hostien is 12h and 31min.
When are sunrise and sunset in September in Saint-Hostien?
In September, on the first day of the month, sunrise is at 07:06 and sunset at 20:20. On the last day of the month, in Saint-Hostien, sunrise is at 07:41 and sunset at 19:26 CEST.
How long on average sun shines in September in Saint-Hostien?
In Saint-Hostien, France, the average sunshine duration in September is 8.3h.
What is the UV index intensity in September in Saint-Hostien?
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Saint-Hostien, France
  • Average high temperature in September: 18.7°C

The warmest month (with the highest average high temperature) is August (23.3°C).
The month with the lowest average high temperature is January (3.4°C).

  • Average low temperature in September: 7.4°C

The month with the highest average low temperature is August (10.7°C).
The coldest month (with the lowest average low temperature) is February (-3°C).

Average pressure in September
Saint-Hostien, France
  • Average pressure in September: 1018.4mbar

The month with the highest atmospheric pressure is December (1021.3mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).

Average wind speed in September
Saint-Hostien, France
  • Average wind speed in September: 8.6km/h

The windiest month (with the highest average wind speed) is February (12.7km/h).
The calmest month (with the lowest average wind speed) is August (8.2km/h).

Average humidity in September
Saint-Hostien, France
  • Average humidity in September: 78%

The months with the highest relative humidity are January, November and December (87%).
The month with the lowest relative humidity is August (72%).

Average rainfall in September
Saint-Hostien, France
  • Average rainfall in September: 29mm

The wettest month (with the highest rainfall) is November (64mm).
The driest month (with the least rainfall) is February (28mm).

Average rainfall days in September
Saint-Hostien, France
  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (8.1 days).

Average snowfall in September
Saint-Hostien, France
  • Average snowfall in September: 0mm

The month with the highest snowfall is February (137mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Saint-Hostien, France
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Saint-Hostien, France
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

Average sunshine days in September
Saint-Hostien, France
  • Average sunshine days in September: 14.3 days

The month with the most sunshine days is October (15.4 days).
The month with the least sunshine days is May (8.5 days).

Average UV index in September
Saint-Hostien, France
  • Average UV index in September: 3

The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in September
Saint-Hostien, France
  • Average cloud cover in September: 41

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in September
Saint-Hostien, France
  • Average visibility in September: 8km

The months with the highest visibility are February, March, April, May, June, July, August, September, October and December (8km).
The months with the lowest visibility are January and November (7km).

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