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
The start of September signals a gentle decrease in the average high-temperature, transitioning from a warm 25.7°C (78.3°F) in August to an agreeable 22.1°C (71.8°F). Chelleh Darreh's nights in September experience an average temperature drop to a fresh 11.4°C (52.5°F).Humidity
The average relative humidity in September in Chelleh Darreh is 58%.Rainfall
In Chelleh Darreh, during September, the rain falls for 8.8 days and regularly aggregates up to 25mm (0.98") of precipitation. Throughout the year, there are 100.2 rainfall days, and 282mm (11.1") of precipitation is accumulated.Snowfall
In Chelleh Darreh, Iran, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 05:49 and sunset at 18:50. On the last day of September, sunrise is at 06:15 and sunset at 18:04 +0330.
Sunshine
The average sunshine in September is 10.4h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The UV index of 4 during September translates into the following guidance:
Make use of precautions - Suggestions to resist sunburn are communicated. Around midday, solar radiation is most harmful; hence, exposure should be limited. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Frequently asked questions
What is the temperature in September in Chelleh Darreh?
What is the average humidity in September in Chelleh Darreh?
How many days does it rain in September in Chelleh Darreh?
When it does not snow in Chelleh Darreh?
Does it snow in Chelleh Darreh in September?
How many hours of daylight does Chelleh Darreh have in September?
What time are sunrise and sunset in September in Chelleh Darreh?
How long on average sun shines in September in Chelleh Darreh?
What is the UV index intensity in September in Chelleh Darreh?
Average temperature in September
Chelleh Darreh, Iran
- Average high temperature in September: 22.1°C
The warmest month (with the highest average high temperature) is July (26.6°C).
The month with the lowest average high temperature is January (1.2°C).
- Average low temperature in September: 11.4°C
The month with the highest average low temperature is July (14.9°C).
The coldest month (with the lowest average low temperature) is January (-5.1°C).
Average pressure in September
Chelleh Darreh, Iran
- Average pressure in September: 1014.5mbar
The month with the highest atmospheric pressure is December (1022.1mbar).
The month with the lowest atmospheric pressure is July (1009.4mbar).
Average wind speed in September
Chelleh Darreh, Iran
- Average wind speed in September: 9.7km/h
The windiest month (with the highest average wind speed) is March (14.2km/h).
The calmest month (with the lowest average wind speed) is September (9.7km/h).
Average humidity in September
Chelleh Darreh, Iran
- Average humidity in September: 58%
The months with the highest relative humidity are January and February (71%).
The months with the lowest relative humidity are July and August (52%).
Average rainfall in September
Chelleh Darreh, Iran
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is May (50mm).
The driest month (with the least rainfall) is August (12mm).
Average rainfall days in September
Chelleh Darreh, Iran
- Average rainfall days in September: 8.8 days
The month with the highest number of rainy days is April (14.3 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in September
Chelleh Darreh, Iran
- Average snowfall in September: 0mm
The month with the highest snowfall is January (112mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Chelleh Darreh, Iran
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Chelleh Darreh, Iran
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 10h and 2min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in September
Chelleh Darreh, Iran
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is August (23.4 days).
The month with the least sunshine days is April (12.3 days).
Average UV index in September
Chelleh Darreh, Iran
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Chelleh Darreh, Iran
- Average cloud cover in September: 17
The month with the most cloud cover is February (Cloud cover 30).
The months with the least cloud cover are June, July and August (Cloud cover 14).
Average visibility in September
Chelleh Darreh, Iran
- Average visibility in September: 10km
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January and February (9km).
Chelleh Darreh, Iran
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