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
Bannalec's transition from August to September introduces an average high-temperature of a comfortable 19.3°C (66.7°F), marking an insignificant variation from the 20.8°C (69.4°F). In Bannalec, the September nights cool down to an average low of 12.6°C (54.7°F).Humidity
The months with the lowest humidity are April, July and September, with an average relative humidity of 79%.Rainfall
In Bannalec, during September, the rain falls for 10.8 days and regularly aggregates up to 28mm (1.1") of precipitation. In Bannalec, during the entire year, the rain falls for 176.4 days and collects up to 623mm (24.53") of precipitation.Snowfall
In Bannalec, snow does not fall in March, May through November.Daylight
In September, the average length of the day is 12h and 34min.On the first day of September, sunrise is at 07:33 and sunset at 20:55. On the last day of the month, sunrise is at 08:13 and sunset at 19:55 CEST.
Sunshine
In Bannalec, the average sunshine in September is 7.8h.UV index
In September, the average daily maximum UV index in Bannalec is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Enhance your sun protection with tightly woven, yet airy clothing.
Frequently asked questions
What are September temperatures in Bannalec?
What are the least humid months in Bannalec?
What is the average humidity in September in Bannalec?
How much does it rain in Bannalec in September?
When it does not snow in Bannalec?
What is the average length of the day in September in Bannalec?
What time are sunrise and sunset in September in Bannalec?
How many hours of sunshine does Bannalec have in September?
What is the UV index intensity in September in Bannalec?
Average temperature in September
Bannalec, France
- Average high temperature in September: 19.3°C
The warmest months (with the highest average high temperature) are July and August (20.8°C).
The months with the lowest average high temperature are January and February (9.3°C).
- Average low temperature in September: 12.6°C
The month with the highest average low temperature is July (14.3°C).
The coldest month (with the lowest average low temperature) is February (5.3°C).
Average pressure in September
Bannalec, France
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is September (1018.5mbar).
The month with the lowest atmospheric pressure is November (1012.8mbar).
Average wind speed in September
Bannalec, France
- Average wind speed in September: 15.5km/h
The windiest months (with the highest average wind speed) are January, February and December (21.6km/h).
The calmest month (with the lowest average wind speed) is August (14.9km/h).
Average humidity in September
Bannalec, France
- Average humidity in September: 79%
The months with the highest relative humidity are January and December (84%).
The months with the lowest relative humidity are April, July and September (79%).
Average rainfall in September
Bannalec, France
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is November (87mm).
The driest month (with the least rainfall) is July (27mm).
Average rainfall days in September
Bannalec, France
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is December (17.8 days).
The month with the least rainy days is September (10.8 days).
Average snowfall in September
Bannalec, France
- Average snowfall in September: 0mm
The month with the highest snowfall is February (4mm).
The months with the least snowfall are March, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Bannalec, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1 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
Bannalec, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Bannalec, France
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is November (8.5 days).
Average UV index in September
Bannalec, France
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Bannalec, France
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 35).
Average visibility in September
Bannalec, France
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September and November (10km).
The months with the lowest visibility are January, October and December (9km).
Bannalec, France
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