Weather in Tehrān

Calculated from weather data of Mehrabad International Airport (OIII) between 2020 and 2024.

Maximum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	9.4	12.3	6.5	9.6	10.1	7.5
February	11.6	11.1	10.4	13.0	14.5	11.4
March	17.1	16.0	19.0	16.8	17.1	17.0
April	22.6		23.8	26.1	26.5	19.1
May	28.9		29.1	28.1	30.3	28.8
June	35.2		34.7	35.8	36.7	34.7
July	37.2		37.2	36.3	37.5	35.8
August	35.2		35.6	34.5	35.2	34.2
September	32.0		31.6	33.6	33.3	30.3
October	24.2		25.0	26.3	23.1	23.3
November	15.7		18.6	17.0	14.8	14.6
December	11.7		14.5	10.0	11.5	8.5
Average	22.2	13.1	23.9	24.4	24.3	22.1

47th highest temperature of Iran

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	1.7	5	0	2	1	1
February	3.4	4	3	5	5	3
March	8.2	8	10	8	9	8
April	12.9		14	16	17	11
May	17.8		18	16	19	18
June	23.5		23	25	26	23
July	25.7		26	24	26	25
August	24.5		26	25	26	23
September	21.4		22	22	22	21
October	14.6		16	17	13	13
November	8.3		11	9	7	8
December	4.5		7	5	4	2
Average	12.9	5.4	14.4	14.6	14.6	12.9

43rd lowest temperature of Iran

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Cold and hot days

Number of days	2024	2023	2022	2021	2020
30 °C or warmer	0	120	125	136	114
25 °C or warmer	0	172	188	180	151
20 °C or warmer	3	223	216	212	206
0 °C or colder	8	22	7	12	17

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	6.3	9	13	3	1	7
February	7.8	16	9	2	5	9
March	7.5	11	12	2	6	4
April	6.4		4	2	0	11
May	1.4		1	0	1	2
June	0.2		1	0	0	0
July	0.3		0	0	1	1
August	0.0		0	0	0	0
September	0.1		0	0	0	0
October	2.3		2	1	1	1
November	6.6		5	4	8	12
December	4.4		1	10	3	7
Average	4.3	11.9	3.7	1.4	1.9	4.0

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (km/h)

Month	Average	2024	2023	2022	2021	2020
January	11.8	12	12	13	10	12
February	14.5	14	16	15	13	17
March	16.4	17	15	18	18	14
April	15.2		17	18	15	14
May	16.6		19	20	15	16
June	15.1		16	17	15	16
July	13.2		14	13	13	12
August	12.5		13	12	12	13
September	12.5		13	12	14	12
October	12.3		16	12	12	9
November	11.3		12	11	11	10
December	9.9		11	7	11	9
Average	13.7	14.7	14.7	14.4	13.4	13.1

22nd highest wind speed of Iran

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month	2024	2023	2022	2021	2020
January	SW	SW	SW	SW	SW
February	SW	W	SW	SW	W
March	W	SW	W	W	SW
April		W	W	SW	SW
May		SW	W	SW	SW
June		SW	SW	SW	SW
July		S	SW	S	S
August		S	S	S	SW
September		S	S	S	S
October		SW	SW	SW	SW
November		SW	SW	SW	SW
December		SW	SW	SW	SW

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.

Tehrān weather Q&A

What is the warmest month in Tehrān?

The warmest month is July with an average temperature of 37 °C over the past years.

What is the coldest month in Tehrān?

The coldest month is January with an average daytime temperature of 9 °C in the past few years.

Which month is the wettest in Tehrān?

Chance of precipitation is the highest in February with a probability of around 7.9 %.

Which month is the driest in Tehrān?

The least rainfall and snow can be expected in August. The probability is about 0.0 %.