Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
During September, Saint-Maclou observes a subtle ascent to a refreshing 18.9°C (66°F) from August's 20.7°C (69.3°F) in the average high-temperature. The nighttime temperature, during September, averages of 12.9°C (55.2°F).Humidity
August and September, with an average relative humidity of 79%, are the least humid months in Saint-Maclou.Rainfall
In Saint-Maclou, in September, during 13.9 rainfall days, 36mm (1.42") of precipitation is typically accumulated. In Saint-Maclou, France, during the entire year, the rain falls for 188.8 days and collects up to 580mm (22.83") of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Saint-Maclou, the average length of the day in September is 12h and 36min.On the first day of September in Saint-Maclou, sunrise is at 07:15 and sunset at 20:41. On the last day of the month, sunrise is at 07:57 and sunset at 19:38 CEST.
Sunshine
In September, the average sunshine is 7.5h.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 exposure to the Sun's UV radiation for the ordinary person.Note: A daily high UV index of 4 in September leads to these guidelines:
Ensure safety - Recommendations to avert sunburn are presented. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Frequently asked questions
What are the temperatures in Saint-Maclou in September?
What are the least humid months in Saint-Maclou?
What is the average humidity in September in Saint-Maclou?
How many days does it rain in September in Saint-Maclou?
When it does not snow in Saint-Maclou?
What is the average length of the day in September in Saint-Maclou?
When is the sunrise / sunset in September in Saint-Maclou?
How many hours of sunshine does Saint-Maclou have in September?
What is the UV index reading in September in Saint-Maclou?
Average temperature in September
Saint-Maclou, France
- Average high temperature in September: 18.9°C
The warmest month (with the highest average high temperature) is August (20.7°C).
The month with the lowest average high temperature is January (7.4°C).
- Average low temperature in September: 12.9°C
The month with the highest average low temperature is August (14.7°C).
The coldest months (with the lowest average low temperature) are January and February (3.8°C).
Average pressure in September
Saint-Maclou, France
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is September (1018mbar).
The month with the lowest atmospheric pressure is November (1012.3mbar).
Average wind speed in September
Saint-Maclou, France
- Average wind speed in September: 16.6km/h
The windiest month (with the highest average wind speed) is December (24.1km/h).
The calmest month (with the lowest average wind speed) is August (15km/h).
Average humidity in September
Saint-Maclou, France
- Average humidity in September: 79%
The months with the highest relative humidity are January and November (84%).
The months with the lowest relative humidity are August and September (79%).
Average rainfall in September
Saint-Maclou, France
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is December (76mm).
The driest month (with the least rainfall) is April (29mm).
Average rainfall days in September
Saint-Maclou, France
- Average rainfall days in September: 13.9 days
The month with the highest number of rainy days is January (18.8 days).
The month with the least rainy days is April (13.1 days).
Average snowfall in September
Saint-Maclou, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (17mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Saint-Maclou, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Saint-Maclou, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 7h and 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The months with the least sunshine are January, November and December (Average sunshine: 4h and 6min).
Average sunshine days in September
Saint-Maclou, France
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is July (13.7 days).
The month with the least sunshine days is December (8.4 days).
Average UV index in September
Saint-Maclou, 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 and November (UV index 2).
Average cloud cover in September
Saint-Maclou, France
- Average cloud cover in September: 40
The months with the most cloud cover are January, November and December (Cloud cover 59).
The months with the least cloud cover are April and July (Cloud cover 39).
Average visibility in September
Saint-Maclou, France
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January and December (9km).
Saint-Maclou, France
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