August weather forecastSaint-Rieul, France
August
Weather in August
August, the last month of the summer in Saint-Rieul, is also an agreeable month, with an average temperature fluctuating between 14°C (57.2°F) and 21.3°C (70.3°F).Temperature
August is the warmest month, with an average high-temperature of 21.3°C (70.3°F) and an average low-temperature of 14°C (57.2°F).Humidity
In August, the average relative humidity in Saint-Rieul is 79%.Rainfall
In August, in Saint-Rieul, the rain falls for 16.8 days. Throughout August, 51mm (2.01") of precipitation is accumulated. Throughout the year, in Saint-Rieul, there are 206.5 rainfall days, and 602mm (23.7") of precipitation is accumulated.Snowfall
May through October are months without snowfall in Saint-Rieul.Daylight
The average length of the day in August is 14h and 17min.On the first day of August in Saint-Rieul, sunrise is at 06:45 and sunset at 21:46. On the last day of the month, sunrise is at 07:26 and sunset at 20:53 CEST.
Sunshine
In August, the average sunshine in Saint-Rieul is 8.2h.UV index
In Saint-Rieul, the average daily maximum UV index in August is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 4 in August converts into the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Saint-Rieul, France
- Average high temperature in August: 21.3°C
The warmest month (with the highest average high temperature) is August (21.3°C).
The month with the lowest average high temperature is January (8.7°C).
- Average low temperature in August: 14°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is February (4.3°C).
Average pressure in August
Saint-Rieul, France
- Average pressure in August: 1016.9mbar
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 August
Saint-Rieul, France
- Average wind speed in August: 14.3km/h
The windiest month (with the highest average wind speed) is December (22.3km/h).
The calmest month (with the lowest average wind speed) is August (14.3km/h).
Average humidity in August
Saint-Rieul, France
- Average humidity in August: 79%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is September (78%).
Average rainfall in August
Saint-Rieul, France
- Average rainfall in August: 51mm
The wettest month (with the highest rainfall) is November (72mm).
The driest month (with the least rainfall) is September (28mm).
Average rainfall days in August
Saint-Rieul, France
- Average rainfall days in August: 16.8 days
The month with the highest number of rainy days is January (20.2 days).
The month with the least rainy days is September (14.3 days).
Average snowfall in August
Saint-Rieul, France
- Average snowfall in August: 0mm
The month with the highest snowfall is December (11mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in August
Saint-Rieul, France
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Saint-Rieul, France
- Average daylight in August: 14h and 18min
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 24min).
- Average sunshine in August: 8h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in August
Saint-Rieul, France
- Average sunshine days in August: 9.6 days
The month with the most sunshine days is September (12.5 days).
The months with the least sunshine days are January and November (6.6 days).
Average UV index in August
Saint-Rieul, France
- Average UV index in August: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover in August
Saint-Rieul, France
- Average cloud cover in August: 42
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 39).
Average visibility in August
Saint-Rieul, France
- Average visibility in August: 9km
The month with the highest visibility is March (10km).
The months with the lowest visibility are January, February, April, May, June, July, August, September, October, November and December (9km).





