September weather forecast and climate
Paris, France

The Eiffel Tower in Paris, France viewed from River Seine
The Eiffel Tower in Paris, France viewed from River Seine

Weather in September

The first month of the autumn, September, is still a pleasant month in Paris, France, with average temperature varying between 20.9°C (69.6°F) and 11.8°C (53.2°F).

Temperature

In September, the average high-temperature slightly decreases, from a moderately hot 24.5°C (76.1°F) in August, to a pleasant 20.9°C (69.6°F). The average low-temperature, in September, is 11.8°C (53.2°F).

Humidity

The average relative humidity in September is 72%.

Rainfall

September is the month with the least rainfall in Paris. Rain falls for 9.3 days and accumulates 17mm (0.67") of precipitation.

Snowfall

April through November are months without snowfall in Paris.

Daylight

In Paris, the average length of the day is 12.6h.

Sunshine

In Paris, the average sunshine is 7.8h.

UV index

In Paris, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Paris?

The average high-temperature, in September, in Paris, is 20.9°C (69.6°F), while the average low-temperature is 11.8°C (53.2°F).

What is the average humidity in September in Paris?

In September, the average relative humidity in Paris is 72%.

How much does it rain in Paris in September?

In Paris, France, during September, the rain falls for 9.3 days and regularly aggregates up to 17mm (0.67") of precipitation.

What is the driest month in Paris?

September is the month with the least rainfall in Paris. Rain falls for 9.3 days and accumulates 17mm (0.67") of precipitation.

When it does not snow in Paris?

April through November are months without snowfall in Paris, France.

What is the average length of the day in September in Paris?

In Paris, the average length of the day in September is 12.6h.

How long on average sun shines in September in Paris?

In Paris, the average sunshine in September is 7.8h.

What is the UV index reading in September in Paris?

In Paris, France, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe exposure to the Sun's UV rays.

Average temperature in September
Paris, France

Average temperature in September - Paris, France
  • Average high temperature in September: 20.9°C

The warmest month (with the highest average high temperature) is July (24.6°C).
The month with the lowest average high temperature is January (5.9°C).

  • Average low temperature in September: 11.8°C

The month with the highest average low temperature is August (15°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).

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Average pressure in September
Paris, France

Average pressure in September - Paris, France
  • Average pressure in September: 1018.1mbar

The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is November (1013.4mbar).

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Average wind speed in September
Paris, France

Average wind speed in September - Paris, France
  • Average wind speed in September: 10.3km/h

The windiest month (with the highest average wind speed) is February (15.4km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).

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Average humidity in September
Paris, France

Average humidity in September - Paris, France
  • Average humidity in September: 72%

Months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is August (68%).

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Average rainfall in September
Paris, France

Average rainfall in September - Paris, France
  • Average rainfall in September: 17mm

The wettest month (with the highest rainfall) is December (49mm).
The driest month (with the least rainfall) is September (17mm).

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Average rainfall days in September
Paris, France

Average rainfall days in September - Paris, France
  • Average rainfall days in September: 9.3 days

The month with the highest number of rainy days is January (15.1 days).
The month with the least rainy days is September (9.3 days).

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Average snowfall in September
Paris, France

Average snowfall in September - Paris, France
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (29mm).
Months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

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Average snowfall days in September
Paris, France

Average snowfall days in September - Paris, France
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.8 days).
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
Paris, France

Average daylight in September / Average sunshine in September - Paris, France
  • Average daylight in September: 12.6h

The month with the longest days is June (Average daylight: 16.1h).
The month with the shortest days is December (Average daylight: 8.3h).

  • Average sunshine in September: 7.8h

The month with the most sunshine is August (Average sunshine: 9.3h).
The month with the least sunshine is January (Average sunshine: 3.8h).

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Average sunshine days in September
Paris, France

Average sunshine days in September - Paris, France
  • Average sunshine days in September: 19.1 days

The month with the most sunshine days is September (19.1 days).
The month with the least sunshine days is February (10.7 days).

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Average UV index in September
Paris, France

Average UV index in September - Paris, France
  • Average UV index in September: 4

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

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Average cloud cover in September
Paris, France

Average cloud cover in September - Paris, France
  • Average cloud cover in September: 37

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 37).

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Average visibility in September
Paris, France

Average visibility in September - Paris, France
  • Average visibility in September: 9km

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

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