Tehran, Iran weather records
Record high and low temperatures for Tehran, Iran, by month, by season, and all-time, with the dates they occurred, across 1981–2026 of daily climate history. Its hottest day on record reached 43°C on 2018-07-01; its coldest fell to -14°C on 2008-01-15.
Records by month
The warmest (▲) and coldest (▼) both the daytime high and the overnight low have ever been in each calendar month, so each column shows its record high and its record low. Tap a month for its full averages and typical range.
| Month | Daytime high | Overnight low |
|---|---|---|
| January | 20°C2003-01-12
-5°C2008-01-08
|
8°C2002-01-01
-14°C2008-01-15
|
| February | 23°C2026-02-19
-4°C2014-02-04
|
10°C2024-02-14
-10°C2020-02-12
|
| March | 31°C2018-03-29
0°C1992-03-11
|
17°C2018-03-29
-8°C1985-03-10
|
| April | 35°C2025-04-25
8°C2020-04-09
|
19°C2025-04-26
-3°C2014-04-01
|
| May | 40°C2026-05-29
14°C1992-05-02
|
23°C2025-05-20
2°C1992-05-05
|
| June | 42°C2022-06-28
24°C2009-06-03
|
26°C2015-06-30
12°C2003-06-07
|
| July | 43°C2018-07-01
25°C2017-07-13
|
28°C2011-07-08
15°C1981-07-22
|
| August | 42°C2024-08-08
20°C2011-08-29
|
28°C2024-08-06
14°C2011-08-30
|
| September | 39°C2021-09-03
20°C2024-09-29
|
24°C2008-09-02
9°C1989-09-24
|
| October | 34°C2015-10-03
8°C1987-10-30
|
19°C2006-10-02
2°C1987-10-29
|
| November | 27°C2016-11-01
-1°C2016-11-24
|
14°C2006-11-06
-14°C2016-11-24
|
| December | 23°C1998-12-11
0°C1994-12-06
|
11°C1998-12-10
-8°C1990-12-26
|
Records by season
The warmest (▲) and coldest (▼) both the daytime high and the overnight low have reached in each meteorological season (Northern Hemisphere, each a three-month span).
| Season | Daytime high | Overnight low |
|---|---|---|
| Winter (Dec–Feb) | 23°C2026-02-19
-5°C2008-01-08
|
11°C1998-12-10
-14°C2008-01-15
|
| Spring (Mar–May) | 40°C2026-05-29
0°C1992-03-11
|
23°C2025-05-20
-8°C1985-03-10
|
| Summer (Jun–Aug) | 43°C2018-07-01
20°C2011-08-29
|
28°C2011-07-08
12°C2003-06-07
|
| Autumn (Sep–Nov) | 39°C2021-09-03
-1°C2016-11-24
|
24°C2008-09-02
-14°C2016-11-24
|
All-time records
The most extreme value Tehran has recorded for each metric across its entire history.
High
Low
Feels-like
Humidity
Wind
Precip
For rainfall, the “driest” figure is the longest run of consecutive days without measurable rain, dated to when that dry spell began.