September weather forecast
Marseille, France

St. Jean Castle and the Cathedral de la Major, in the port of Marseille in France
St. Jean Castle and the Cathedral de la Major, in the port of Marseille in France

Weather in September

The first month of the autumn, September, is also a moderately hot month in Marseille, France, with temperature in the range of an average high of 23.7°C (74.7°F) and an average low of 17.6°C (63.7°F).

Temperature

In Marseille, the average high-temperature in September marginally drops from a moderately hot 27.3°C (81.1°F) in August to a still warm 23.7°C (74.7°F). In September, in Marseille, France, the average low-temperature is 17.6°C (63.7°F).

Humidity

The average relative humidity in September in Marseille, France, is 67%.

Rainfall

In Marseille, during September, the rain falls for 7.5 days and regularly aggregates up to 28mm (1.1") of 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, France.

Sea temperature

August and September, with an average sea temperature of 21.9°C (71.4°F), are months with the warmest seawater in Marseille.
Note: For most, swimming in 21.9°C (71.4°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

In September, the average length of the day is 12h and 30min.
On the first day of the month, sunrise is at 07:02 and sunset at 20:14. On the last day of September, sunrise is at 07:34 and sunset at 19:22 CEST.

Sunshine

In September, the average sunshine is 9.5h.

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 5 in September transform into the following instructions:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the temperature in September in Marseille?

The average high-temperature, in September, in Marseille, is 23.7°C (74.7°F), while the average low-temperature is 17.6°C (63.7°F). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, in August is computed to be 29°C (84.2°F).

What is the average humidity in September in Marseille?

The average relative humidity in September in Marseille is 67%.

How much does it rain in Marseille in September?

In Marseille, France, in September, during 7.5 rainfall days, 28mm (1.1") of precipitation is typically accumulated.

When it does not snow in Marseille?

In Marseille, snow does not fall in January, April through December.

What are the months with the warmest sea water in Marseille?

August and September, with an average sea temperature of 21.9°C (71.4°F), are months with the warmest seawater in Marseille, France.

How cold is the water in September in Marseille?

In Marseille, France, the average seawater temperature in September is 21.9°C (71.4°F). For most, swimming in 21.9°C (71.4°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

How many hours of daylight does Marseille have in September?

In September, the average day length in Marseille is 12h and 30min.

What time are sunrise and sunset in September in Marseille?

On the first day of September in Marseille, sunrise is at 07:02 and sunset at 20:14. On the last day of the month, sunrise is at 07:34 and sunset at 19:22 CEST.

How long on average sun shines in September in Marseille?

The average sunshine duration in September in Marseille, France, is 9.5h.

How high is the UV index in September in Marseille?

In Marseille, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover

Average temperature in September
Marseille, France

Average temperature in September - Marseille, France
  • Average high temperature in September: 23.7°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 September: 17.6°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).

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Average pressure in September
Marseille, France

Average pressure in September - Marseille, France
  • Average pressure in September: 1016.6mbar

The month with the highest atmospheric pressure is December (1019.3mbar).
The month with the lowest atmospheric pressure is November (1014.2mbar).

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Average wind speed in September
Marseille, France

Average wind speed in September - Marseille, France
  • Average wind speed in September: 15.6km/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).

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Average humidity in September
Marseille, France

Average humidity in September - Marseille, France
  • Average humidity in September: 67%

The month with the highest relative humidity is November (75%).
The month with the lowest relative humidity is August (63%).

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Average rainfall in September
Marseille, France

Average rainfall in September - Marseille, France
  • Average rainfall in September: 28mm

The wettest month (with the highest rainfall) is November (77mm).
The driest month (with the least rainfall) is July (12mm).

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Average rainfall days in September
Marseille, France

Average rainfall days in September - Marseille, France
  • Average rainfall days in September: 7.5 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).

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Average snowfall in September
Marseille, France

Average snowfall in September - Marseille, France
  • Average snowfall in September: 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).

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Average snowfall days in September
Marseille, France

Average snowfall days in September - Marseille, France
  • Average snowfall days in September: 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).

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Average sea temperature in September
Marseille, France

Average sea temperature in September - Marseille, France
  • Average sea temperature in September: 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).

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Average daylight in September /
Average sunshine in September
Marseille, France

Average daylight in September / Average sunshine in September - Marseille, France
  • Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 15h and 20min).
The month with the shortest days is December (Average daylight: 9h and 2min).

  • Average sunshine in September: 9h and 30min

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).

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Average sunshine days in September
Marseille, France

Average sunshine days in September - Marseille, France
  • Average sunshine days in September: 21.5 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).

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Average UV index in September
Marseille, France

Average UV index in September - Marseille, France
  • Average UV index in September: 5

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).

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Average cloud cover in September
Marseille, France

Average cloud cover in September - Marseille, France
  • Average cloud cover in September: 16

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).

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Average visibility in September
Marseille, France

Average visibility in September - Marseille, France
  • Average visibility in September: 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).

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