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
Weather in September
Temperature
September is characterized by a slight reduction in average high-temperature, easing from a warm 26.9°C (80.4°F) in August to a still moderately hot 23.6°C (74.5°F). A notable decrease from the day's highest temperature marks September in Saint-Castin, culminating in an average low of 11.5°C (52.7°F).Humidity
The months with the lowest humidity in Saint-Castin are August and September, with an average relative humidity of 73%.Rainfall
September is the month with the least rainfall in Saint-Castin. Rain falls for 12.5 days and accumulates 32mm (1.26") of precipitation.Snowfall
April through November are months without snowfall in Saint-Castin.Daylight
In September, the average length of the day in Saint-Castin is 12h and 30min.On the first day of the month, sunrise is at 07:25 and sunset at 20:36. On the last day of September, in Saint-Castin, sunrise is at 07:58 and sunset at 19:43 CEST.
Sunshine
The average sunshine in September in Saint-Castin, France, is 8.8h.UV index
May through September, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 5 in September translates into this advice:
Take precautions - Protection against sun damage is advised. When the Sun is at its strongest around midday, find shade and limit exposure. Stay sun-safe with clothing that is both closely woven and worn loosely.
Frequently asked questions
What is the usual temperature for Saint-Castin in September?
What is the least humid month in Saint-Castin?
What is the average humidity in September in Saint-Castin?
What is the driest month in Saint-Castin?
How much does it rain in Saint-Castin in September?
When it does not snow in Saint-Castin?
How many hours of daylight does Saint-Castin have in September?
What time are sunrise and sunset in September in Saint-Castin?
How long on average sun shines in September in Saint-Castin?
What are the months with the highest UV index in Saint-Castin?
What is the UV index intensity in September in Saint-Castin?
Average temperature in September
Saint-Castin, France
- Average high temperature in September: 23.6°C
The warmest month (with the highest average high temperature) is August (26.9°C).
The month with the lowest average high temperature is January (8.8°C).
- Average low temperature in September: 11.5°C
The months with the highest average low temperature are July and August (13.9°C).
The coldest month (with the lowest average low temperature) is February (1.6°C).
Average pressure in September
Saint-Castin, France
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is December (1021.8mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in September
Saint-Castin, France
- Average wind speed in September: 6.4km/h
The windiest month (with the highest average wind speed) is March (8km/h).
The calmest month (with the lowest average wind speed) is September (6.4km/h).
Average humidity in September
Saint-Castin, France
- Average humidity in September: 73%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are August and September (73%).
Average rainfall in September
Saint-Castin, France
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is May (89mm).
The driest month (with the least rainfall) is September (32mm).
Average rainfall days in September
Saint-Castin, France
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is April (19.3 days).
The month with the least rainy days is October (12.4 days).
Average snowfall in September
Saint-Castin, France
- Average snowfall in September: 0mm
The month with the highest snowfall is February (13mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Saint-Castin, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Saint-Castin, 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: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is November (Average sunshine: 5h and 24min).
Average sunshine days in September
Saint-Castin, France
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is October (16.8 days).
The month with the least sunshine days is April (8.7 days).
Average UV index in September
Saint-Castin, France
- Average UV index in September: 5
The months with the highest UV index are May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February and November (UV index 2).
Average cloud cover in September
Saint-Castin, France
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in September
Saint-Castin, France
- Average visibility in September: 9km
The months with the highest visibility are March, June, September, October, November and December (9km).
The months with the lowest visibility are January, February, April, May, July and August (8km).
Saint-Castin, France
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