Contents
Weather in August
Temperature
August is the warmest month, with the temperature often reaching an average high of 22°C (71.6°F) and an average low of 13.6°C (56.5°F).Humidity
In August, the average relative humidity in St-Malo, France, is 81%.Rainfall
In August, in St-Malo, the rain falls for 8 days. Throughout August, 49mm (1.93") of precipitation is accumulated. In St-Malo, during the entire year, the rain falls for 129.4 days and collects up to 759mm (29.88") of precipitation.Snowfall
In St-Malo, snow does not fall in May through October.Sea temperature
In St-Malo, in August, the average water temperature is 18°C (64.4°F).Note: Swimming is not a pleasurable activity for most people when the water temperature is 18°C (64.4°F). Breathing control gets harder as the water temperature drops from 21°C (69.8°F) to 15°C (59°F).
Daylight
In August, the average length of the day in St-Malo is 14h and 18min.On the first day of the month, sunrise is at 06:42 and sunset at 21:45. On the last day of August, in St-Malo, sunrise is at 07:24 and sunset at 20:51 CEST.
Sunshine
The average sunshine in August is 6.4h.UV index
The average daily maximum UV index in August in St-Malo is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: In August, the maximum UV index of 6 suggests this advice:
Shield from overexposure. Defense against sun-related harm is required. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
What is the warmest month in St-Malo?
What are the temperatures in St-Malo in August?
What is the average humidity in August in St-Malo?
How much does it rain in St-Malo in August?
When it does not snow in St-Malo?
What is the sea water temperature in August in St-Malo?
How many hours of daylight does St-Malo have in August?
When are sunrise and sunset in August in St-Malo?
How many hours of sunshine does St-Malo have in August?
What is the UV index intensity in August in St-Malo?
Average temperature in August
St-Malo, France
- Average high temperature in August: 22°C
The warmest month (with the highest average high temperature) is August (22°C).
The month with the lowest average high temperature is January (8.8°C).
- Average low temperature in August: 13.6°C
The month with the highest average low temperature is August (13.6°C).
The coldest month (with the lowest average low temperature) is February (3.1°C).
Average humidity in August
St-Malo, France
- Average humidity in August: 81%
The months with the highest relative humidity are October and December (85%).
The months with the lowest relative humidity are March, April and May (79%).
Average rainfall in August
St-Malo, France
- Average rainfall in August: 49.4mm
The wettest months (with the highest rainfall) are October and November (86.8mm).
The driest month (with the least rainfall) is June (49.1mm).
Average rainfall days in August
St-Malo, France
- Average rainfall days in August: 8 days
The month with the highest number of rainy days is November (13.8 days).
The month with the least rainy days is July (7.6 days).
Average snowfall days in August
St-Malo, France
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in August
St-Malo, France
- Average sea temperature in August: 18°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 August /
Average sunshine in August
St-Malo, France
- Average daylight in August: 14h and 2min
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: 6h and 2min
The month with the most sunshine is June (Average sunshine: 6h and 54min).
The month with the least sunshine is December (Average sunshine: 2h and 6min).
Average UV index in August
St-Malo, France
- Average UV index in August: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, November and December (UV index 1).
St-Malo, France
Weather forecast for your location
2. Allow the app to use your location
