September weather forecast
Nancy, France

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Weather in September

With the start of September, Nancy, France, begins to transition from the warmth of summer to the crisp climate of autumn. The weather cools considerably, with temperatures going down to 19.5°C (67.1°F). There is a visible decrease in daylight hours and a reduced UV index. As autumn draws near, the city witnesses fewer but substantial rainfalls, endorsing the weather transition period with variations in atmospheric pressure. The wind picks up slightly, marking the start of breezier days.

Temperature

During the shift to September in Nancy, a minor reduction in average high-temperature is observed, shifting from a moderately hot 23.5°C (74.3°F) in August to a comfortable 19.5°C (67.1°F). During September, Nancy witnesses a consistent average low-temperature of 9.7°C (49.5°F).

Humidity

In Nancy, the average relative humidity in September is 79%.

Rainfall

In Nancy, in September, it is raining for 11.7 days, with typically 33mm (1.3") of accumulated precipitation. Throughout the year, in Nancy, there are 179 rainfall days, and 518mm (20.39") of precipitation is accumulated.

Snowfall

In Nancy, France, snow does not fall in May through October.

Daylight

In September, the average length of the day is 12h and 35min.
On the first day of September in Nancy, sunrise is at 06:53 and sunset at 20:17. On the last day of the month, sunrise is at 07:34 and sunset at 19:16 CEST.

Sunshine

The average sunshine in September in Nancy is 8.4h.

UV index

In September, the average daily maximum UV index in Nancy is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 4 during September translates into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.

Frequently asked questions

What are September temperatures in Nancy?

In Nancy, in September, the average high-temperature is 19.5°C (67.1°F), and the average low-temperature is 9.7°C (49.5°F).

What is the average humidity in September in Nancy?

In Nancy, France, the average relative humidity in September is 79%.

How many days does it rain in September in Nancy?

In Nancy, France, in September, during 11.7 rainfall days, 33mm (1.3") of precipitation is typically accumulated.

When it does not snow in Nancy?

In Nancy, snow does not fall in May through October.

How many hours of daylight does Nancy have in September?

In Nancy, the average day length in September is 12h and 35min.

When are sunrise and sunset in September in Nancy?

In September, on the first day of the month, sunrise is at 06:53 and sunset at 20:17. On the last day of the month, sunrise is at 07:34 and sunset at 19:16 CEST.

How many hours of sunshine does Nancy have in September?

The average sunshine duration in September in Nancy, France, is 8.4h.

How high is the UV index in September in Nancy?

In Nancy, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
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
Nancy, France

Average temperature in September - Nancy, France
  • Average high temperature in September: 19.5°C

The warmest month (with the highest average high temperature) is August (23.5°C).
The month with the lowest average high temperature is January (3.7°C).

  • Average low temperature in September: 9.7°C

The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is January (-0.4°C).

Average pressure in September
Nancy, France

Average pressure in September - Nancy, France
  • Average pressure in September: 1018.2mbar

The month with the highest atmospheric pressure is December (1019.4mbar).
The month with the lowest atmospheric pressure is November (1014.7mbar).

Average wind speed in September
Nancy, France

Average wind speed in September - Nancy, France
  • Average wind speed in September: 10km/h

The windiest month (with the highest average wind speed) is December (15.9km/h).
The calmest month (with the lowest average wind speed) is August (9.3km/h).

Average humidity in September
Nancy, France

Average humidity in September - Nancy, France
  • Average humidity in September: 79%

The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (75%).

Average rainfall in September
Nancy, France

Average rainfall in September - Nancy, France
  • Average rainfall in September: 33mm

The wettest month (with the highest rainfall) is June (62mm).
The driest month (with the least rainfall) is April (30mm).

Average rainfall days in September
Nancy, France

Average rainfall days in September - Nancy, France
  • Average rainfall days in September: 11.7 days

The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is February (11.5 days).

Average snowfall in September
Nancy, France

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

The month with the highest snowfall is January (38mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in September
Nancy, France

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

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Nancy, France
  • Average daylight in September: 12h and 4min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The months with the least sunshine are January and December (Average sunshine: 3h and 48min).

Average sunshine days in September
Nancy, France

Average sunshine days in September - Nancy, France
  • Average sunshine days in September: 15.4 days

The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is June (8.4 days).

Average UV index in September
Nancy, France

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

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

Average cloud cover in September
Nancy, France

Average cloud cover in September - Nancy, France
  • Average cloud cover in September: 35

The month with the most cloud cover is December (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in September
Nancy, France

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

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

Nancy, France

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