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
With September's onset, the weather reveals a slight temperature decrease, transitioning from a tropical 31.8°C (89.2°F) in August to a warm 27.6°C (81.7°F). Yalfan in September observes a sharp transition from the daytime heat, falling to an average low of 12.6°C (54.7°F).Humidity
In September, the average relative humidity is 25%.Rainfall
The only month without rainfall is September.Snowfall
May through October are months without snowfall.Daylight
In Yalfan, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 05:48 and sunset at 18:42. On the last day of September, sunrise is at 06:09 and sunset at 18:01 +0330.
Sunshine
The average sunshine in September is 11.1h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Adopt protective measures - It is advised to guard against sun damage. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Yalfan in September?
What is the average humidity in September?
What is the driest month?
Does it rain in September?
When it does not snow?
How many hours of daylight does Yalfan have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Yalfan, Iran
- Average high temperature in September: 27.6°C
The warmest month (with the highest average high temperature) is July (32.9°C).
The month with the lowest average high temperature is January (3.3°C).
- Average low temperature in September: 12.6°C
The month with the highest average low temperature is July (18°C).
The coldest month (with the lowest average low temperature) is January (-4°C).
Average pressure in September
Yalfan, Iran
- Average pressure in September: 1013mbar
The month with the highest atmospheric pressure is December (1021.8mbar).
The month with the lowest atmospheric pressure is July (1006.4mbar).
Average wind speed in September
Yalfan, Iran
- Average wind speed in September: 9km/h
The windiest month (with the highest average wind speed) is March (12.7km/h).
The calmest month (with the lowest average wind speed) is November (8.3km/h).
Average humidity in September
Yalfan, Iran
- Average humidity in September: 25%
The month with the highest relative humidity is January (65%).
The month with the lowest relative humidity is July (21%).
Average rainfall in September
Yalfan, Iran
- Average rainfall in September: 0mm
The wettest month (with the highest rainfall) is March (44mm).
The driest month (with the least rainfall) is September (0mm).
Average rainfall days in September
Yalfan, Iran
- Average rainfall days in September: 0.6 days
The month with the highest number of rainy days is April (10.4 days).
The month with the least rainy days is September (0.6 days).
Average snowfall in September
Yalfan, Iran
- Average snowfall in September: 0mm
The month with the highest snowfall is February (194mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Yalfan, Iran
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Yalfan, Iran
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 11h and 1min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 48min).
Average sunshine days in September
Yalfan, Iran
- Average sunshine days in September: 28.7 days
The month with the most sunshine days is August (29.7 days).
The month with the least sunshine days is April (17.8 days).
Average UV index in September
Yalfan, Iran
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Yalfan, Iran
- Average cloud cover in September: 4
The month with the most cloud cover is January (Cloud cover 26).
The month with the least cloud cover is September (Cloud cover 4).
Average visibility in September
Yalfan, Iran
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
