September weather forecast
Saint-Julien-en-Saint-Alban, France

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Weather in September

September, the first month of the autumn in Saint-Julien-en-Saint-Alban, is also an agreeable month, with an average temperature fluctuating between 11.6°C (52.9°F) and 22.3°C (72.1°F).

Temperature

The commencement of September involves a temperature shift, with the average high-temperature dropping from a warm 27.3°C (81.1°F) in August to an agreeable 22.3°C (72.1°F). Saint-Julien-en-Saint-Alban, in September, observes a steady average low-temperature of 11.6°C (52.9°F).

Humidity

In September, the average relative humidity in Saint-Julien-en-Saint-Alban is 71%.

Rainfall

In Saint-Julien-en-Saint-Alban, in September, it is raining for 9.7 days, with typically 34mm (1.34") of accumulated precipitation. Throughout the year, in Saint-Julien-en-Saint-Alban, France, there are 147.6 rainfall days, and 592mm (23.31") of precipitation is accumulated.

Snowfall

In Saint-Julien-en-Saint-Alban, France, snow does not fall in April through October.

Daylight

In September, the average length of the day in Saint-Julien-en-Saint-Alban is 12h and 31min.
On the first day of the month, sunrise is at 07:04 and sunset at 20:17. On the last day of September, sunrise is at 07:38 and sunset at 19:23 CEST.

Sunshine

In September, the average sunshine is 9.2h.

UV index

In September, the average daily maximum UV index in Saint-Julien-en-Saint-Alban is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
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Frequently asked questions

What is the average September temperature in Saint-Julien-en-Saint-Alban?

The average high-temperature, in September, in Saint-Julien-en-Saint-Alban, is 22.3°C (72.1°F), while the average low-temperature is 11.6°C (52.9°F). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is calculated to be 29°C (84.2°F).

What is the average humidity in September in Saint-Julien-en-Saint-Alban?

In Saint-Julien-en-Saint-Alban, France, the average relative humidity in September is 71%.

How much does it rain in Saint-Julien-en-Saint-Alban in September?

In Saint-Julien-en-Saint-Alban, France, during September, the rain falls for 9.7 days and regularly aggregates up to 34mm (1.34") of precipitation.

When it does not snow in Saint-Julien-en-Saint-Alban?

In Saint-Julien-en-Saint-Alban, snow does not fall in April through October.

What is the average length of the day in September in Saint-Julien-en-Saint-Alban?

In September, the average day length in Saint-Julien-en-Saint-Alban, France, is 12h and 31min.

When are sunrise and sunset in September in Saint-Julien-en-Saint-Alban?

On the first day of September, sunrise is at 07:04 and sunset at 20:17. On the last day of the month, sunrise is at 07:38 and sunset at 19:23 CEST.

How long on average sun shines in September in Saint-Julien-en-Saint-Alban?

In Saint-Julien-en-Saint-Alban, the average sunshine duration in September is 9.2h.

What is the UV index reading in September in Saint-Julien-en-Saint-Alban?

The average daily maximum UV index in September in Saint-Julien-en-Saint-Alban is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Today
Tomorrow
Long-term
YearJFMAMJJASeptemberOND
Aug
September
Oct
Average high temperature
27.3°C 81.1°F
22.3°C 72.1°F
16.8°C 62.2°F
Average low temperature
14.9°C 58.8°F
11.6°C 52.9°F
8.5°C 47.3°F
Average pressure
1017.2mbar 30.04inHg
1018mbar 30.06inHg
1017.6mbar 30.05inHg
Average wind speed
9.6km/h 6mph
9.5km/h 5.9mph
10.3km/h 6.4mph
Average max. wind speed
10.6km/h 6.6mph
10km/h 6.2mph
11.5km/h 7.1mph
Average wind speed gusts
14.7km/h 9.1mph
15km/h 9.3mph
16.3km/h 10.1mph
Average humidity
64%
71%
78%
Average rainfall
39mm 1.54"
34mm 1.34"
67mm 2.64"
Average rainfall days
10.7
9.7
10.6
Average snowfall
0mm 0"
0mm 0"
0mm 0"
Average snowfall days
0
0
0
Average daylight
14h 0min
12h 3min
11h 0min
Average sunshine
11h 2min
9h 1min
7h 1min
Average sunshine days
16.1
16.8
18.1
Average UV index
5
5
3
Average cloud cover
17%
23%
33%
Average visibility
10km 6.2mi
9km 5.6mi
9km 5.6mi

Average temperature in September
Saint-Julien-en-Saint-Alban, France

Average temperature in September - Saint-Julien-en-Saint-Alban, France
  • Average high temperature in September: 22.3°C

The warmest month (with the highest average high temperature) is July (27.4°C).
The month with the lowest average high temperature is January (6.3°C).

  • Average low temperature in September: 11.6°C

The months with the highest average low temperature are July and August (14.9°C).
The coldest month (with the lowest average low temperature) is February (0.3°C).

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Average pressure in September
Saint-Julien-en-Saint-Alban, France

Average pressure in September - Saint-Julien-en-Saint-Alban, France
  • Average pressure in September: 1018mbar

The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.1mbar).

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Average wind speed in September
Saint-Julien-en-Saint-Alban, France

Average wind speed in September - Saint-Julien-en-Saint-Alban, France
  • Average wind speed in September: 9.5km/h

The windiest month (with the highest average wind speed) is February (11.6km/h).
The calmest month (with the lowest average wind speed) is November (9.4km/h).

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Average humidity in September
Saint-Julien-en-Saint-Alban, France

Average humidity in September - Saint-Julien-en-Saint-Alban, France
  • Average humidity in September: 71%

The months with the highest relative humidity are November and December (84%).
The months with the lowest relative humidity are July and August (64%).

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Average rainfall in September
Saint-Julien-en-Saint-Alban, France

Average rainfall in September - Saint-Julien-en-Saint-Alban, France
  • Average rainfall in September: 34mm

The wettest month (with the highest rainfall) is November (104mm).
The driest month (with the least rainfall) is February (32mm).

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Average rainfall days in September
Saint-Julien-en-Saint-Alban, France

Average rainfall days in September - Saint-Julien-en-Saint-Alban, France
  • Average rainfall days in September: 9.7 days

The month with the highest number of rainy days is June (15.2 days).
The month with the least rainy days is September (9.7 days).

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Average snowfall in September
Saint-Julien-en-Saint-Alban, France

Average snowfall in September - Saint-Julien-en-Saint-Alban, France
  • Average snowfall in September: 0mm

The month with the highest snowfall is November (57mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

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Average snowfall days in September
Saint-Julien-en-Saint-Alban, France

Average snowfall days in September - Saint-Julien-en-Saint-Alban, France
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (3.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Saint-Julien-en-Saint-Alban, France

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

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 1min

The month with the most sunshine is July (Average sunshine: 11h and 36min).
The months with the least sunshine are January and November (Average sunshine: 5h and 36min).

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Average sunshine days in September
Saint-Julien-en-Saint-Alban, France

Average sunshine days in September - Saint-Julien-en-Saint-Alban, France
  • Average sunshine days in September: 16.8 days

The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is June (10.4 days).

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Average UV index in September
Saint-Julien-en-Saint-Alban, France

Average UV index in September - Saint-Julien-en-Saint-Alban, 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).

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Average cloud cover in September
Saint-Julien-en-Saint-Alban, France

Average cloud cover in September - Saint-Julien-en-Saint-Alban, France
  • Average cloud cover in September: 23

The month with the most cloud cover is November (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 17).

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Average visibility in September
Saint-Julien-en-Saint-Alban, France

Average visibility in September - Saint-Julien-en-Saint-Alban, France
  • Average visibility in September: 9km

The months with the highest visibility are July and August (10km).
The months with the lowest visibility are January and November (8km).

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Saint-Julien-en-Saint-Alban, France

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