Tehran weather records
Record high and low temperatures for Tehran, by month, by season, and all-time, with the dates they occurred, across 1980–2026 of daily climate history. Its hottest day on record reached 40°C on 2026-07-11; its coldest fell to -24°C on 1988-12-29.
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 | 12°C2024-01-09
-12°C2008-01-09
|
4°C2024-01-09
-22°C1989-01-05
|
| February | 17°C2026-02-19
-11°C1982-02-19
|
10°C2016-02-23
-23°C2020-02-12
|
| March | 22°C2010-03-16
-7°C1985-03-10
|
15°C2008-03-29
-23°C1985-03-10
|
| April | 28°C2026-04-27
0°C1981-04-02
|
16°C2008-04-29
-10°C1983-04-02
|
| May | 40°C2026-05-29
5°C1992-05-02
|
21°C2026-05-29
-4°C1992-05-05
|
| June | 38°C2026-06-21
16°C2001-06-12
|
26°C2011-06-30
7°C1984-06-01
|
| July | 40°C2026-07-11
18°C1987-07-28
|
29°C2026-07-16
9°C1981-07-29
|
| August | 38°C2026-08-19
14°C2011-08-29
|
29°C2026-08-16
9°C2011-08-29
|
| September | 33°C2018-09-12
13°C2024-09-29
|
22°C2025-09-10
4°C1981-09-26
|
| October | 26°C2015-10-04
3°C1987-10-27
|
18°C2010-10-02
-5°C1987-10-29
|
| November | 19°C2020-11-02
-6°C2016-11-24
|
12°C2006-11-06
-16°C1982-11-30
|
| December | 15°C1998-12-11
-11°C1990-12-27
|
7°C2017-12-24
-24°C1988-12-29
|
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) | 17°C2026-02-19
-12°C2008-01-09
|
10°C2016-02-23
-24°C1988-12-29
|
| Spring (Mar–May) | 40°C2026-05-29
-7°C1985-03-10
|
21°C2026-05-29
-23°C1985-03-10
|
| Summer (Jun–Aug) | 40°C2026-07-11
14°C2011-08-29
|
29°C2026-08-16
7°C1984-06-01
|
| Autumn (Sep–Nov) | 33°C2018-09-12
-6°C2016-11-24
|
22°C2025-09-10
-16°C1982-11-30
|
All-time records
The most extreme value Tehran has recorded for each metric across its entire history.
High
Low
Feels-like
Humidity
Wind
Gust
Precip
For rainfall, the “driest” figure is the longest run of consecutive days without measurable rain, dated to when that dry spell began.