September weather forecastMercuès, France
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Mercuès, France, with an average temperature fluctuating between 24.2°C (75.6°F) and 12.1°C (53.8°F).Temperature
The transition into September involves a small decrease in the average high-temperature, dipping slightly from a warm 28°C (82.4°F) in August to a still moderately hot 24.2°C (75.6°F). Mercuès, amidst the high September temperatures, experiences a substantial shift to an average nighttime low of 12.1°C (53.8°F).Humidity
In Mercuès, the average relative humidity in September is 70%.Rainfall
In Mercuès, in September, it is raining for 10.2 days, with typically 32mm (1.26") of accumulated precipitation. Throughout the year, in Mercuès, there are 158.9 rainfall days, and 488mm (19.21") of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day in Mercuès is 12h and 31min.On the first day of the month, sunrise is at 07:17 and sunset at 20:30. On the last day of September, sunrise is at 07:51 and sunset at 19:36 CEST.
Sunshine
In Mercuès, the average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A typical high UV index of 4 in September suggests the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mercuès, France
- Average high temperature in September: 24.2°C
The warmest month (with the highest average high temperature) is August (28°C).
The month with the lowest average high temperature is January (7.9°C).
- Average low temperature in September: 12.1°C
The months with the highest average low temperature are July and August (15°C).
The coldest month (with the lowest average low temperature) is February (1.4°C).
Average pressure in September
Mercuès, France
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is December (1021.6mbar).
The months with the lowest atmospheric pressure are April and November (1015.6mbar).
Average wind speed in September
Mercuès, France
- Average wind speed in September: 7.7km/h
The windiest month (with the highest average wind speed) is March (10.5km/h).
The calmest month (with the lowest average wind speed) is August (7.6km/h).
Average humidity in September
Mercuès, France
- Average humidity in September: 70%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is August (66%).
Average rainfall in September
Mercuès, France
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is November (53mm).
The driest month (with the least rainfall) is February (28mm).
Average rainfall days in September
Mercuès, France
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is September (10.2 days).
Average snowfall in September
Mercuès, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (8mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Mercuès, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Mercuès, 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: 8h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and November (Average sunshine: 4h and 30min).
Average sunshine days in September
Mercuès, France
- Average sunshine days in September: 17.8 days
The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is May (12.6 days).
Average UV index in September
Mercuès, France
- Average UV index in September: 4
The month with the highest UV index is 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
Mercuès, France
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Mercuès, France
- Average visibility in September: 9km
The months with the highest visibility are June, July, August and September (9km).
The months with the lowest visibility are January and December (7km).





