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 sea temperature 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-Lunaire observes a subtle ascent to an enjoyable 19.4°C (66.9°F) from August's 20.7°C (69.3°F) in the average high-temperature. Saint-Lunaire's nighttime temperature in September drops to an average of 13°C (55.4°F).Humidity
The least humid month in Saint-Lunaire is September, with an average relative humidity of 78%.Rainfall
The months with the least rainfall in Saint-Lunaire are July and September Rain falls for 12.8 days and accumulates 26mm (1.02") of rain.Snowfall
In Saint-Lunaire, snow does not fall in April through October.Sea temperature
The month with the warmest seawater is September, with an average sea temperature of 18.2°C (64.8°F).Note: Swimming in 18.2°C (64.8°F) is not pleasurable for most people. Breathing control grows increasingly challenging as the water temperature falls under 21°C (69.8°F).
Daylight
The average length of the day in September is 12h and 35min.On the first day of the month, sunrise is at 07:26 and sunset at 20:50. On the last day of September, sunrise is at 08:07 and sunset at 19:49 CEST.
Sunshine
In September, the average sunshine in Saint-Lunaire is 7.5h.UV index
In Saint-Lunaire, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 4 in September translates into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Frequently asked questions
What are September temperatures in Saint-Lunaire?
What is the least humid month in Saint-Lunaire?
What is the average humidity in September in Saint-Lunaire?
What is the driest month in Saint-Lunaire?
How many days does it rain in September in Saint-Lunaire?
When it does not snow in Saint-Lunaire?
What month is the sea warmest in Saint-Lunaire?
What is the sea temperature in September in Saint-Lunaire?
What is the average length of the day in September in Saint-Lunaire?
When are sunrise and sunset in September in Saint-Lunaire?
How long on average sun shines in September in Saint-Lunaire?
What is the UV index reading in September in Saint-Lunaire?
Average temperature in September
Saint-Lunaire, France
- Average high temperature in September: 19.4°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 (8.8°C).
- Average low temperature in September: 13°C
The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is February (4.8°C).
Average pressure in September
Saint-Lunaire, France
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is September (1018.2mbar).
The month with the lowest atmospheric pressure is November (1012.4mbar).
Average wind speed in September
Saint-Lunaire, France
- Average wind speed in September: 16.3km/h
The windiest month (with the highest average wind speed) is December (24km/h).
The calmest month (with the lowest average wind speed) is August (15.2km/h).
Average humidity in September
Saint-Lunaire, France
- Average humidity in September: 78%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is September (78%).
Average rainfall in September
Saint-Lunaire, France
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is November (67mm).
The driest months (with the least rainfall) are July and September (26mm).
Average rainfall days in September
Saint-Lunaire, France
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is November (18.5 days).
The month with the least rainy days is September (12.8 days).
Average snowfall in September
Saint-Lunaire, France
- Average snowfall in September: 0mm
The month with the highest snowfall is December (9mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Saint-Lunaire, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Saint-Lunaire, France
- Average sea temperature in September: 18.2°C
The best month for swimming (with the highest average sea temperature) is September (18.2°C).
The coldest month (with the lowest average sea temperature) is February (8.7°C).
Average daylight in September /
Average sunshine in September
Saint-Lunaire, 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: 7h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Saint-Lunaire, 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 January (8.6 days).
Average UV index in September
Saint-Lunaire, 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 and February (UV index 2).
Average cloud cover in September
Saint-Lunaire, France
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 38).
Average visibility in September
Saint-Lunaire, France
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, June, July, August, September, October and December (10km).
The months with the lowest visibility are January, May and November (9km).
Saint-Lunaire, France
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