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
Castetbon's September weather shows a modest shift in high-temperatures, falling from August's 26.9°C (80.4°F) to a still warm 23.6°C (74.5°F). Despite the drastic temperature difference, Castetbon records an average nighttime low of 11.5°C (52.7°F) throughout September.Humidity
The months with the lowest humidity in Castetbon are August and September, with an average relative humidity of 73%.Rainfall
September is the month with the least rainfall. Rain falls for 12.5 days and accumulates 32mm (1.26") of precipitation.Snowfall
In Castetbon, France, snow does not fall in April through November.Daylight
In September, the average length of the day in Castetbon is 12h and 30min.On the first day of the month, sunrise is at 07:27 and sunset at 20:38. On the last day of September, in Castetbon, sunrise is at 08:00 and sunset at 19:45 CEST.
Sunshine
In September, the average sunshine is 8.8h.UV index
May through September, with an average maximum UV index of 5, are months with the highest UV index in Castetbon. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: In September, a regular UV index of 5 translates into these guidelines:
Prioritize safety - Recommendations to avert sunburn are shared. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Castetbon?
What is the least humid month in Castetbon?
What is the average humidity in September in Castetbon?
What is the driest month in Castetbon?
How much does it rain in Castetbon in September?
When it does not snow in Castetbon?
How many hours of daylight does Castetbon have in September?
When is the sunrise / sunset in September in Castetbon?
How many hours of sunshine does Castetbon have in September?
What are the months with the highest UV index in Castetbon?
What is the UV index intensity in September in Castetbon?
Average temperature in September
Castetbon, 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
Castetbon, 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
Castetbon, 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
Castetbon, 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
Castetbon, 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
Castetbon, 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
Castetbon, 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
Castetbon, 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
Castetbon, 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
Castetbon, 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
Castetbon, 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
Castetbon, 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
Castetbon, 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).
