What's on in Tehran (Iran), Iran through the year
Tehran, Iran has 8 curated events through the year — 2 festivals, 3 holidays, 2 seasons and 1 hazard season. The ones to plan around: Chaharshanbe Suri (March) and Yalda night (December). March is its peak-crowd month.
Updated September 2026 · every event curated and sourced · dates for 2026 where they are announced, the usual window where they are not
Best time to visit Tehran (Iran): weather, crowds and notes →
Tehran (Iran) events and crowds by month
| Month | What starts | Crowds |
|---|---|---|
| January | Ramadan | Quiet |
| February | — | Busy |
| March | Chaharshanbe Suri, Nowruz | Peak crowds |
| April | — | Busy |
| May | — | Busy |
| June | Muharram and Ashura, The dry summer | Busy |
| July | — | Quiet |
| August | — | Quiet |
| September | — | Shoulder season |
| October | — | Busy |
| November | Winter inversion smog | Shoulder season |
| December | Ski season above the city, Yalda night | Shoulder season |
January in Tehran (Iran)
Tehran (Iran) weather in January →Quiet — school holidays in 6 of the markets that fill it, one of its worst months for weather
- Holiday
Ramadan
19 Feb – 20 MarClosuresRestaurants shut through daylight and eating in the street is not an option; hotels feed guests behind closed curtains. The city runs late and the traffic peaks before iftar. Source ↗
Still on: Winter inversion smog (15 Nov – 28 Feb (usually)), Ski season above the city (15 Dec – 10 Apr (usually))
February in Tehran (Iran)
Tehran (Iran) weather in February →Busy — Ramadan, school holidays in 2 of the markets that fill it
Nothing new starts in February.
Still on: Ramadan (19 Feb – 20 Mar), Winter inversion smog (15 Nov – 28 Feb (usually)), Ski season above the city (15 Dec – 10 Apr (usually))
March in Tehran (Iran)
Tehran (Iran) weather in March →Peak crowds — Ramadan, Nowruz
- Festival
Chaharshanbe Suri
14–19 Mar · usuallyMajor festivalRiskThe fire festival on the last Tuesday evening before the new year: bonfires at every junction, fireworks that are technically illegal, and hospitals braced for it. Source ↗
- Holiday
Nowruz
18 Mar – 5 Apr · usuallyNational holidayClosuresCrowdedBook earlyThe Persian new year empties Tehran for a fortnight: offices, museums and half the restaurants shut, roads out of the city jam, and the air is the cleanest it gets all year. Source ↗
Still on: Ramadan (19 Feb – 20 Mar), Ski season above the city (15 Dec – 10 Apr (usually))
April in Tehran (Iran)
Tehran (Iran) weather in April →Busy — Nowruz, school holidays in 3 of the markets that fill it
Nothing new starts in April.
Still on: Nowruz (18 Mar – 5 Apr (usually)), Ski season above the city (15 Dec – 10 Apr (usually))
May in Tehran (Iran)
Tehran (Iran) weather in May →Busy — school holidays in 2 of the markets that fill it, one of its best months for weather
Nothing new starts in May.
June in Tehran (Iran)
Tehran (Iran) weather in June →Busy — Muharram and Ashura, school holidays in 3 of the markets that fill it
- Holiday
Muharram and Ashura
16–25 JunMuharram & AshuraClosuresTen days of black banners, street kitchens handing out food and processions after dark, ending on Ashura when the city closes entirely. Music venues stay shut throughout. Source ↗
- Season
The dry summer
15 Jun – 5 Sep · usuallyExtreme heatHot and dusty at street level, several degrees cooler in the northern suburbs against the mountain, which is where the city goes in the evening. Air quality is at its best.
July in Tehran (Iran)
Tehran (Iran) weather in July →Quiet — school holidays in 5 of the markets that fill it, one of its worst months for weather
Nothing new starts in July.
Still on: Muharram and Ashura (16–25 Jun), The dry summer (15 Jun – 5 Sep (usually))
August in Tehran (Iran)
Tehran (Iran) weather in August →Quiet — school holidays in 4 of the markets that fill it, one of its worst months for weather
Nothing new starts in August.
Still on: The dry summer (15 Jun – 5 Sep (usually))
September in Tehran (Iran)
Tehran (Iran) weather in September →Shoulder season — school holidays in 3 of the markets that fill it, an ordinary month
Nothing new starts in September.
Still on: The dry summer (15 Jun – 5 Sep (usually))
October in Tehran (Iran)
Tehran (Iran) weather in October →Busy — school holidays in 3 of the markets that fill it, one of its best months for weather
Nothing new starts in October.
November in Tehran (Iran)
Tehran (Iran) weather in November →Shoulder season — an ordinary month
- Hazard
Winter inversion smog
15 Nov – 28 Feb · usuallyWinter smogClosuresCold air traps the traffic exhaust against the mountains for days at a time and the government closes schools and offices when it gets bad. It is the worst thing about a Tehran winter. Source ↗
December in Tehran (Iran)
Tehran (Iran) weather in December →Shoulder season — school holidays in 5 of the markets that fill it, an ordinary month
- Season
Ski season above the city
15 Dec – 10 Apr · usuallyDizin, Shemshak and the Tochal gondola from the top of the metro line: real snow, an hour from the centre, and a season that usually runs from December into April.
- Festival
Yalda night
20–21 DecMajor festivalThe longest night is spent indoors with family, watermelon, pomegranates and poetry read aloud. Nothing closes, but the city is at home rather than out. Source ↗
Still on: Winter inversion smog (15 Nov – 28 Feb (usually))