August weather forecastGuissény, France
August
Weather in August
The last month of the summer, August, is another refreshing month in Guissény, France, with an average temperature fluctuating between 18.7°C (65.7°F) and 14.9°C (58.8°F).Temperature
Guissény's temperatures tend to hit their maximum during July and August, with an average high-temperature of 18.7°C (65.7°F).Humidity
In August, the average relative humidity in Guissény is 82%.Rainfall
In Guissény, in August, it is raining for 14.6 days, with typically 38mm (1.5") of accumulated precipitation. In Guissény, during the entire year, the rain falls for 188.2 days and collects up to 560mm (22.05") of precipitation.Snowfall
April through October are months without snowfall.Sea temperature
The month with the warmest seawater in Guissény is August, with an average sea temperature of 16.7°C (62.1°F).Note: For most individuals, swimming in 16.7°C (62.1°F) is not a pleasurable activity. Breathing becomes progressively more difficult as water temperature declines below 21°C (69.8°F).
Daylight
The average length of the day in August in Guissény is 14h and 18min.On the first day of the month, sunrise is at 06:52 and sunset at 21:55. On the last day of August, sunrise is at 07:34 and sunset at 21:01 CEST.
Sunshine
In August, the average sunshine is 7.9h.UV index
June through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 5 during August translates into these guidelines:
Undertake protective steps - Recommendations to avoid sunburn are issued. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Guissény, France
- Average high temperature in August: 18.7°C
The warmest months (with the highest average high temperature) are July and August (18.7°C).
The month with the lowest average high temperature is February (9.4°C).
- Average low temperature in August: 14.9°C
The month with the highest average low temperature is August (14.9°C).
The coldest month (with the lowest average low temperature) is February (6.4°C).
Average pressure in August
Guissény, 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 (1011.8mbar).
Average wind speed in August
Guissény, France
- Average wind speed in August: 18.1km/h
The windiest month (with the highest average wind speed) is December (27.6km/h).
The calmest month (with the lowest average wind speed) is July (17.8km/h).
Average humidity in August
Guissény, France
- Average humidity in August: 82%
The month with the highest relative humidity is June (84%).
The months with the lowest relative humidity are February, March and April (80%).
Average rainfall in August
Guissény, France
- Average rainfall in August: 38mm
The wettest month (with the highest rainfall) is November (77mm).
The driest month (with the least rainfall) is September (22mm).
Average rainfall days in August
Guissény, France
- Average rainfall days in August: 14.6 days
The month with the highest number of rainy days is January (20.5 days).
The month with the least rainy days is September (10.6 days).
Average snowfall in August
Guissény, France
- Average snowfall in August: 0mm
The month with the highest snowfall is February (3mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in August
Guissény, France
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in August
Guissény, France
- Average sea temperature in August: 16.7°C
The best month for swimming (with the highest average sea temperature) is August (16.7°C).
The coldest month (with the lowest average sea temperature) is March (9.9°C).
Average daylight in August /
Average sunshine in August
Guissény, France
- Average daylight in August: 14h and 18min
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 August: 7h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).
Average sunshine days in August
Guissény, France
- Average sunshine days in August: 14.3 days
The month with the most sunshine days is September (16.4 days).
The months with the least sunshine days are January and November (7.3 days).
Average UV index in August
Guissény, France
- Average UV index in August: 5
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 August
Guissény, France
- Average cloud cover in August: 44
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is April (Cloud cover 41).
Average visibility in August
Guissény, France
- Average visibility in August: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
