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 arrival of September in Tehran is marked by a minor reduction in average high-temperature, sliding from a tropical 32.1°C (89.8°F) in August to a moderately hot 27.8°C (82°F). Throughout the September nights, Tehran encounters a low-temperature of 18.6°C (65.5°F).Humidity
In Tehran, the average relative humidity in September is 22%.Rainfall
The month with the least rainfall is September, when the rain falls for 2.9 days and typically collects 6mm (0.24") of precipitation.Snowfall
April through October are months without snowfall in Tehran.Daylight
In Tehran, the average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 05:36 and sunset at 18:31. On the last day of September, in Tehran, sunrise is at 05:58 and sunset at 17:49 +0330.
Sunshine
In Tehran, the average sunshine in September is 11.6h.UV index
In September, the average daily maximum UV index in Tehran is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 5 in September leads to these guidelines:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What are the temperatures in Tehran in September?
What is the average humidity in September in Tehran?
What is the driest month in Tehran?
How much does it rain in Tehran in September?
When it does not snow in Tehran?
What is the average length of the day in September in Tehran?
When are sunrise and sunset in September in Tehran?
How long on average sun shines in September in Tehran?
What is the UV index reading in September in Tehran?
Average temperature in September
Tehran, Iran
- Average high temperature in September: 27.8°C
The warmest month (with the highest average high temperature) is July (33.8°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in September: 18.6°C
The month with the highest average low temperature is July (24.3°C).
The coldest month (with the lowest average low temperature) is January (-2.3°C).
Average pressure in September
Tehran, Iran
- Average pressure in September: 1013mbar
The month with the highest atmospheric pressure is December (1021.6mbar).
The month with the lowest atmospheric pressure is July (1007.1mbar).
Average wind speed in September
Tehran, Iran
- Average wind speed in September: 7km/h
The windiest month (with the highest average wind speed) is June (9.4km/h).
The calmest months (with the lowest average wind speed) are November and December (5.5km/h).
Average humidity in September
Tehran, Iran
- Average humidity in September: 22%
The month with the highest relative humidity is February (52%).
The month with the lowest relative humidity is July (19%).
Average rainfall in September
Tehran, Iran
- Average rainfall in September: 6mm
The wettest month (with the highest rainfall) is April (38mm).
The driest month (with the least rainfall) is September (6mm).
Average rainfall days in September
Tehran, Iran
- Average rainfall days in September: 2.9 days
The month with the highest number of rainy days is April (13.5 days).
The month with the least rainy days is September (2.9 days).
Average snowfall in September
Tehran, Iran
- Average snowfall in September: 0mm
The month with the highest snowfall is January (27mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Tehran, Iran
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.3 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
Tehran, Iran
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 11h and 4min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is February (Average sunshine: 7h and 0min).
Average sunshine days in September
Tehran, Iran
- Average sunshine days in September: 22.8 days
The months with the most sunshine days are July and September (22.8 days).
The month with the least sunshine days is April (9.5 days).
Average UV index in September
Tehran, Iran
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Tehran, Iran
- Average cloud cover in September: 4
The month with the most cloud cover is March (Cloud cover 22).
The month with the least cloud cover is September (Cloud cover 4).
Average visibility in September
Tehran, Iran
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Tehran, Iran
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