August weather forecastMarseille, France

August
Weather in August
August offers the warmest sea temperature of the year at 21.9°C (71.4°F), attracting swimmers and water sports enthusiasts. Balmy temperatures, clear skies, and relatively low chances of rainfall come together to maintain a summertime charm in Marseille. The daylight hours start to cease, hinting at the approaching autumn. The wind speed decreases to 14.6km/h (9.1mph), letting the warmth of the sun envelope the city. August represents the last spell of the Marseille summer, overflowing with outdoor events and festivities.Temperature
Temperature readings reach their annual highs in August, averaging 27.3°C (81.1°F) and a minimum average of 20.8°C (69.4°F).Heat index
The average heat index in August is calculated to be 29°C (84.2°F). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.Be advised, the heat index considers values for conditions in shade and with a light breeze. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
August is the least humid month in Marseille, with an average relative humidity of 63%.Rainfall
In Marseille, in August, it is raining for 5.6 days, with typically 14mm (0.55") of accumulated precipitation. In Marseille, during the entire year, the rain falls for 106.6 days and collects up to 428mm (16.85") of precipitation.Snowfall
January, April through December are months without snowfall in Marseille.Sea temperature
The months with the warmest seawater are August and September, with an average sea temperature of 21.9°C (71.4°F).Note: The majority of individuals find it unpleasurable to swim in 21.9°C (71.4°F). It becomes progressively harder to manage one's breathing as the water temperature falls below 21°C (69.8°F).
Daylight
In Marseille, the average length of the day in August is 13h and 55min.On the first day of August in Marseille, France, sunrise is at 06:29 and sunset at 21:00. On the last day of the month, sunrise is at 07:02 and sunset at 20:15 CEST.
Sunshine
In Marseille, the average sunshine in August is 11.7h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Marseille. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 6 in August leads to these recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Stay cautious! Sand and water reflections increase UV radiation potency.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Marseille, France
- Average high temperature in August: 27.3°C
The warmest month (with the highest average high temperature) is August (27.3°C).
The month with the lowest average high temperature is January (10.4°C).
- Average low temperature in August: 20.8°C
The month with the highest average low temperature is August (20.8°C).
The coldest month (with the lowest average low temperature) is February (6.1°C).
Average pressure in August
Marseille, France
- Average pressure in August: 1015.8mbar
The month with the highest atmospheric pressure is December (1019.3mbar).
The month with the lowest atmospheric pressure is November (1014.2mbar).
Average wind speed in August
Marseille, France
- Average wind speed in August: 14.6km/h
The windiest month (with the highest average wind speed) is February (21.5km/h).
The calmest month (with the lowest average wind speed) is August (14.6km/h).
Average humidity in August
Marseille, France
- Average humidity in August: 63%
The month with the highest relative humidity is November (75%).
The month with the lowest relative humidity is August (63%).
Average rainfall in August
Marseille, France
- Average rainfall in August: 14mm
The wettest month (with the highest rainfall) is November (77mm).
The driest month (with the least rainfall) is July (12mm).
Average rainfall days in August
Marseille, France
- Average rainfall days in August: 5.6 days
The month with the highest number of rainy days is November (12.2 days).
The month with the least rainy days is July (4.8 days).
Average snowfall in August
Marseille, France
- Average snowfall in August: 0mm
The month with the highest snowfall is February (2mm).
The months with the least snowfall are January, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in August
Marseille, France
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in August
Marseille, France
- Average sea temperature in August: 21.9°C
The best months for swimming (with the highest average sea temperature) are August and September (21.9°C).
The coldest month (with the lowest average sea temperature) is February (12.9°C).
Average daylight in August /
Average sunshine in August
Marseille, France
- Average daylight in August: 13h and 54min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in August: 11h and 42min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January and November (Average sunshine: 6h and 6min).
Average sunshine days in August
Marseille, France
- Average sunshine days in August: 23.9 days
The month with the most sunshine days is July (24.3 days).
The month with the least sunshine days is April (16.3 days).
Average UV index in August
Marseille, France
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in August
Marseille, France
- Average cloud cover in August: 10
The month with the most cloud cover is November (Cloud cover 34).
The months with the least cloud cover are July and August (Cloud cover 10).
Average visibility in August
Marseille, France
- Average visibility in August: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





