September weather forecast
Tehran, Iran

A golden illusion of the front view of the Zaid Mosque in Tehran, Iran
A golden illusion of the front view of the Zaid Mosque in Tehran, Iran

Weather in September

The first month of the autumn, September, is also a moderately hot month in Tehran, Iran, with an average temperature fluctuating between 27.8°C (82°F) and 18.6°C (65.5°F).

Temperature

In Tehran, the average high-temperature in September marginally drops from a hot 32.1°C (89.8°F) in August to a moderately hot 27.8°C (82°F). The average low-temperature, in Tehran, Iran, is 18.6°C (65.5°F).

Humidity

In September, the average relative humidity in Tehran is 22%.

Rainfall

The month with the least rainfall in Tehran 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.

Daylight

In September, the average length of the day is 12h and 24min.
On the first day of September in Tehran, Iran, sunrise is at 06:36 and sunset at 19:32 +0430. On the last day of the month, sunrise is at 05:58 and sunset at 17:50 +0330.
Note: On Thursday, 22. September 2022, at 00:00, Daylight Saving Time ends, and the time zone changes from +0430 to +0330. Daylight Saving Time lasts until Thursday, 01. January 1970, at 03:30; consequently, the time zone reverts from +0330 to.

Sunshine

The average sunshine in September is 11.6h.

UV index

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Tehran?

In September, the average high-temperature is 27.8°C (82°F), and the average low-temperature is 18.6°C (65.5°F).

What is the average humidity in September in Tehran?

In September, the average relative humidity is 22%.

What is the driest month in Tehran?

The month with the least rainfall in Tehran, Iran, is September, when the rain falls for 2.9 days and typically collects 6mm (0.24") of precipitation.

How many days does it rain in September in Tehran?

In Tehran, Iran, during September, the rain falls for 2.9 days and regularly aggregates up to 6mm (0.24") of precipitation.

When it does not snow in Tehran?

April through October are months without snowfall in Tehran, Iran.

What is the average length of the day in September in Tehran?

In Tehran, Iran, the average day length in September is 12h and 24min.

What time are sunrise and sunset in September in Tehran?

In September, on the first day of the month, sunrise is at 06:36 and sunset at 19:32 +0430. On the last day of the month, sunrise is at 05:58 and sunset at 17:50 +0330.

When does Daylight Saving Time (DST) end in September in Tehran?

On Thursday, 22. September 2022, at 00:00, Daylight Saving Time ends in Tehran, Iran, and the time zone changes from +0430 to +0330. DST ends on Thursday, 01. January 1970, at 03:30.

How long on average sun shines in September in Tehran?

In September, the average sunshine duration in Tehran is 11.6h.

What is the UV index intensity in September in Tehran?

The average daily maximum UV index in September in Tehran, Iran, is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover

Average temperature in September
Tehran, Iran

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).

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Average pressure in September
Tehran, Iran

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).

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Average wind speed in September
Tehran, Iran

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).

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Average humidity in September
Tehran, Iran

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%).

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Average rainfall in September
Tehran, Iran

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).

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Average rainfall days in September
Tehran, Iran

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).

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Average snowfall in September
Tehran, Iran

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).

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Average snowfall days in September
Tehran, Iran

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).

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Average daylight in September /
Average sunshine in September
Tehran, Iran

Average daylight in September / Average sunshine in September - Tehran, Iran
  • Average daylight in September: 12h and 24min

The month with the longest days is June (Average daylight: 14h and 32min).
The month with the shortest days is December (Average daylight: 9h and 47min).

  • Average sunshine in September: 11h and 36min

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).

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Average sunshine days in September
Tehran, Iran

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).

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Average UV index in September
Tehran, Iran

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).

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Average cloud cover in September
Tehran, Iran

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).

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Average visibility in September
Tehran, Iran

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).

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