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

MonthWhat startsCrowds
JanuaryRamadanQuiet
FebruaryBusy
MarchChaharshanbe Suri, NowruzPeak crowds
AprilBusy
MayBusy
JuneMuharram and Ashura, The dry summerBusy
JulyQuiet
AugustQuiet
SeptemberShoulder season
OctoberBusy
NovemberWinter inversion smogShoulder season
DecemberSki season above the city, Yalda nightShoulder 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 MarClosures

    Restaurants 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))

Peak crowds — Ramadan, Nowruz

  • Festival

    Chaharshanbe Suri

    14–19 Mar · usuallyMajor festivalRisk

    The 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 early

    The 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))

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))

Busy — school holidays in 2 of the markets that fill it, one of its best months for weather

Nothing new starts in May.

Busy — Muharram and Ashura, school holidays in 3 of the markets that fill it

  • Holiday

    Muharram and Ashura

    16–25 JunMuharram & AshuraClosures

    Ten 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 heat

    Hot 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.

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))

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 smogClosures

    Cold 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 · usually

    Dizin, 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 festival

    The 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))

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