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 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
September
Weather in September
Temperature
The onset of September entails a subtle temperature shift, as the average high-temperature eases from a warm 24.2°C (75.6°F) in August to an enjoyable 19.6°C (67.3°F). Throughout September, an average low-temperature of 9.5°C (49.1°F) is expected.Humidity
In September, the average relative humidity is 78%.Rainfall
In Saint-Romain-le-Puy, in September, during 13.4 rainfall days, 33mm (1.3") of precipitation is typically accumulated. In Saint-Romain-le-Puy, during the entire year, the rain falls for 177.1 days and collects up to 594mm (23.39") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 32min.On the first day of the month, sunrise is at 07:05 and sunset at 20:21. On the last day of September, sunrise is at 07:41 and sunset at 19:25 CEST.
Sunshine
The average sunshine in September is 8.1h.UV index
In Saint-Romain-le-Puy, the average daily maximum UV index in September is 4. 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 UV index of 4 in September translates into these instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in Saint-Romain-le-Puy in September?
How many hours of daylight does Saint-Romain-le-Puy have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Saint-Romain-le-Puy have in September?
What is the UV index reading in September?
Average temperature in September
Saint-Romain-le-Puy, France
- Average high temperature in September: 19.6°C
The warmest month (with the highest average high temperature) is August (24.2°C).
The month with the lowest average high temperature is January (4.7°C).
- Average low temperature in September: 9.5°C
The month with the highest average low temperature is July (12.8°C).
The coldest month (with the lowest average low temperature) is February (-1.3°C).
Average pressure in September
Saint-Romain-le-Puy, France
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is December (1021.3mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in September
Saint-Romain-le-Puy, France
- Average wind speed in September: 8.8km/h
The windiest month (with the highest average wind speed) is February (12.6km/h).
The calmest month (with the lowest average wind speed) is August (8.3km/h).
Average humidity in September
Saint-Romain-le-Puy, France
- Average humidity in September: 78%
The months with the highest relative humidity are November and December (86%).
The month with the lowest relative humidity is August (74%).
Average rainfall in September
Saint-Romain-le-Puy, France
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is May (67mm).
The driest month (with the least rainfall) is February (32mm).
Average rainfall days in September
Saint-Romain-le-Puy, France
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is October (11.9 days).
Average snowfall in September
Saint-Romain-le-Puy, France
- Average snowfall in September: 0mm
The month with the highest snowfall is November (86mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Saint-Romain-le-Puy, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Saint-Romain-le-Puy, France
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in September
Saint-Romain-le-Puy, France
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is October (16.4 days).
The month with the least sunshine days is May (7.8 days).
Average UV index in September
Saint-Romain-le-Puy, France
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Saint-Romain-le-Puy, France
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Saint-Romain-le-Puy, France
- Average visibility in September: 8km
The months with the highest visibility are March and August (9km).
The months with the lowest visibility are January, February, April, May, June, July, September, October, November and December (8km).
