September weather forecastIran, Russia
September
Weather in September
September, the first month of the autumn in Iran, is also an agreeable month, with an average temperature fluctuating between 10.6°C (51.1°F) and 21.3°C (70.3°F).Temperature
The arrival of September is marked by a minor reduction in average high-temperature, sliding from a warm 25.9°C (78.6°F) in August to an agreeable 21.3°C (70.3°F). Iran experiences a mean temperature of 10.6°C (51.1°F) during September nights.Humidity
In Iran, Russia, the average relative humidity in September is 71%.Rainfall
In Iran, in September, during 10.5 rainfall days, 36mm (1.42") of precipitation is typically accumulated. Throughout the year, there are 156.1 rainfall days, and 619mm (24.37") of precipitation is accumulated.Snowfall
In Iran, snow does not fall in May through September.Daylight
In Iran, the average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 05:28 and sunset at 18:38. On the last day of September, in Iran, sunrise is at 06:00 and sunset at 17:46 MSK.
Sunshine
In Iran, the average sunshine in September is 10h.UV index
In September, the average daily maximum UV index in Iran is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 4 suggests these recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Iran, Russia
- Average high temperature in September: 21.3°C
The warmest month (with the highest average high temperature) is August (25.9°C).
The month with the lowest average high temperature is January (1.2°C).
- Average low temperature in September: 10.6°C
The month with the highest average low temperature is July (15.3°C).
The coldest month (with the lowest average low temperature) is January (-5.6°C).
Average pressure in September
Iran, Russia
- Average pressure in September: 1016.1mbar
The month with the highest atmospheric pressure is November (1021.9mbar).
The month with the lowest atmospheric pressure is July (1011.8mbar).
Average wind speed in September
Iran, Russia
- Average wind speed in September: 8km/h
The windiest month (with the highest average wind speed) is April (8.8km/h).
The calmest month (with the lowest average wind speed) is December (5.9km/h).
Average humidity in September
Iran, Russia
- Average humidity in September: 71%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Iran, Russia
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is June (131mm).
The driest month (with the least rainfall) is February (16mm).
Average rainfall days in September
Iran, Russia
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is May (23.1 days).
The month with the least rainy days is November (6.5 days).
Average snowfall in September
Iran, Russia
- Average snowfall in September: 0mm
The month with the highest snowfall is March (136mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Iran, Russia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.3 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
Iran, Russia
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is August (Average sunshine: 11h and 24min).
The months with the least sunshine are January and February (Average sunshine: 5h and 24min).
Average sunshine days in September
Iran, Russia
- Average sunshine days in September: 17.3 days
The month with the most sunshine days is October (19.7 days).
The months with the least sunshine days are May and June (5.3 days).
Average UV index in September
Iran, Russia
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Iran, Russia
- Average cloud cover in September: 27
The month with the most cloud cover is March (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Iran, Russia
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The month with the lowest visibility is January (8km).
