Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September's arrival aligns with a minor decrease in average high-temperatures, from August's warm 29.4°C (84.9°F) to a still moderately hot 25.4°C (77.7°F). Throughout September, the nighttime temperature averages to a comfortable 17.3°C (63.1°F).Humidity
In September, the average relative humidity in Port-Saint-Louis-du-Rhône is 62%.Rainfall
In Port-Saint-Louis-du-Rhône, in September, during 6.6 rainfall days, 25mm (0.98") of precipitation is typically accumulated. Throughout the year, there are 96.9 rainfall days, and 372mm (14.65") of precipitation is accumulated.Snowfall
April through December are months without snowfall.Sea temperature
The month with the warmest seawater is September, with an average sea temperature of 21.8°C (71.2°F).Note: For most people, a water temperature of 21.8°C (71.2°F) is not conducive to enjoyable swimming. Breathing control becomes harder as the water temperature dips below 21°C (69.8°F).
Daylight
In Port-Saint-Louis-du-Rhône, the average length of the day in September is 12h and 30min.On the first day of September in Port-Saint-Louis-du-Rhône, sunrise is at 07:05 and sunset at 20:15. On the last day of the month, sunrise is at 07:37 and sunset at 19:23 CEST.
Sunshine
In Port-Saint-Louis-du-Rhône, the average sunshine in September is 9.4h.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 unsafe exposure to UV radiation for ordinary individuals.Note: A typical high UV index of 5 in September suggests the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. Around midday, solar radiation is most harmful; hence, exposure should be limited. Experience reduced UV exposure by about half when donning a wide-brim hat. Attention! UV radiation is ramped up when reflecting off sand and water surfaces.
Frequently asked questions
What are September temperatures in Port-Saint-Louis-du-Rhône?
What is the average humidity in September in Port-Saint-Louis-du-Rhône?
How much does it rain in Port-Saint-Louis-du-Rhône in September?
When it does not snow in Port-Saint-Louis-du-Rhône?
What is the month with the warmest sea water in Port-Saint-Louis-du-Rhône?
What is the sea temperature in September in Port-Saint-Louis-du-Rhône?
What is the average length of the day in September in Port-Saint-Louis-du-Rhône?
When is the sunrise / sunset in September in Port-Saint-Louis-du-Rhône?
How long on average sun shines in September in Port-Saint-Louis-du-Rhône?
What is the UV index reading in September in Port-Saint-Louis-du-Rhône?
Average temperature in September
Port-Saint-Louis-du-Rhône, France
- Average high temperature in September: 25.4°C
The warmest month (with the highest average high temperature) is August (29.4°C).
The month with the lowest average high temperature is January (10.5°C).
- Average low temperature in September: 17.3°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 (5.3°C).
Average pressure in September
Port-Saint-Louis-du-Rhône, France
- Average pressure in September: 1016.9mbar
The month with the highest atmospheric pressure is December (1019.8mbar).
The months with the lowest atmospheric pressure are April and November (1014.6mbar).
Average wind speed in September
Port-Saint-Louis-du-Rhône, France
- Average wind speed in September: 15.1km/h
The windiest month (with the highest average wind speed) is February (21km/h).
The calmest month (with the lowest average wind speed) is August (14.7km/h).
Average humidity in September
Port-Saint-Louis-du-Rhône, France
- Average humidity in September: 62%
The month with the highest relative humidity is December (74%).
The months with the lowest relative humidity are July and August (57%).
Average rainfall in September
Port-Saint-Louis-du-Rhône, France
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is November (67mm).
The driest months (with the least rainfall) are July and August (12mm).
Average rainfall days in September
Port-Saint-Louis-du-Rhône, France
- Average rainfall days in September: 6.6 days
The month with the highest number of rainy days is November (12.2 days).
The month with the least rainy days is August (5.1 days).
Average snowfall in September
Port-Saint-Louis-du-Rhône, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (4mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Port-Saint-Louis-du-Rhône, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in September
Port-Saint-Louis-du-Rhône, France
- Average sea temperature in September: 21.8°C
The best month for swimming (with the highest average sea temperature) is September (21.8°C).
The coldest month (with the lowest average sea temperature) is February (12.8°C).
Average daylight in September /
Average sunshine in September
Port-Saint-Louis-du-Rhône, France
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in September
Port-Saint-Louis-du-Rhône, France
- Average sunshine days in September: 22.1 days
The month with the most sunshine days is July (24.4 days).
The month with the least sunshine days is November (16.3 days).
Average UV index in September
Port-Saint-Louis-du-Rhône, France
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Port-Saint-Louis-du-Rhône, France
- Average cloud cover in September: 17
The month with the most cloud cover is November (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility in September
Port-Saint-Louis-du-Rhône, 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).
Port-Saint-Louis-du-Rhône, France
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