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Best time to visit Tehran, Iran

Our verdict

The best time to visit Tehran is April

Are you looking to travel to Tehran and want to find out when’s the best time to visit? You’re in the right place! The perfect time to visit Tehran is April due to the excellent weather conditions, and you might even find that the cost of flights and accommodation are lower than if you travel during the peak holiday seasons.

The very hottest temperatures in Tehran get to around 38℃ (101℉) in the height of summer. In the colder months such as January, temperatures usually get down to an average minimum of -2℃ (28℉).

If you’re keen to see the sights of Tehran during the day, the sun stays up the longest around August. On average it rains the most days in April, making it the wettest month of the year. Although it’s the wet season, it can often rain a little bit during the day or evening but have fine weather for a majority of the day too, so don’t let this put you off.

Learn everything you need to know to help you decide when to go to Tehran below, and don’t forget to use the awesome travel tools we know and love to help you find the best deals and make booking your vacation a breeze!

Warmest month

July

Least rainfall

September

Most daylight

August

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Where to?
Tehran

Tehran seasons

Before you continue, it’s important to know when the seasons are in Tehran as they might be different to yours depending on where in the world you’re travelling from. Tehran is in the Northern Hemisphere, so the seasons fall during these months:

Season Months
Summer June to August
Autumn/fall September to November
Winter December to February
Spring March to May

Average temperatures in Tehran

If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Tehran for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.

Tehran climate by month

If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Tehran for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.

Jump to:

JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC

Tehran in January

  • Average temperature: 2℃ (35℉)
  • Average high temperature: 6℃ (42℉)
  • Average low temperature: -2℃ (28℉)
  • Average humidity: 50%
  • Average sunny days: 18 days
  • Average rainfall: 21mm (1") over 8 days
  • Average snow days: 3 days
18 days
of pure sunshine
8 days
of showers or rain

What to pack: If you’re heading to Tehran in January, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Tehran in February

  • Average temperature: 3℃ (38℉)
  • Average high temperature: 7℃ (45℉)
  • Average low temperature: -1℃ (30℉)
  • Average humidity: 52%
  • Average sunny days: 14 days
  • Average rainfall: 28mm (1") over 9 days
  • Average snow days: 3 days
14 days
of pure sunshine
9 days
of showers or rain

What to pack: If you’re heading to Tehran in February, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Tehran in March

  • Average temperature: 8℃ (47℉)
  • Average high temperature: 13℃ (55℉)
  • Average low temperature: 4℃ (39℉)
  • Average humidity: 43%
  • Average sunny days: 15 days
  • Average rainfall: 30mm (1") over 12 days
  • Average snow days: 1 days
15 days
of pure sunshine
12 days
of showers or rain

What to pack: If you’re heading to Tehran in March, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Tehran in April

  • Average temperature: 14℃ (57℉)
  • Average high temperature: 18℃ (65℉)
  • Average low temperature: 9℃ (49℉)
  • Average humidity: 38%
  • Average sunny days: 10 days
  • Average rainfall: 38mm (2") over 14 days
10 days
of pure sunshine
14 days
of showers or rain

What to pack: If you’re heading to Tehran in April, make sure you pack a warm jacket or coat.


Tehran in May

  • Average temperature: 21℃ (69℉)
  • Average high temperature: 25℃ (77℉)
  • Average low temperature: 16℃ (60℉)
  • Average humidity: 29%
  • Average sunny days: 11 days
  • Average rainfall: 30mm (1") over 13 days
11 days
of pure sunshine
13 days
of showers or rain

What to pack: If you’re heading to Tehran in May, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.


Tehran in June

  • Average temperature: 26℃ (78℉)
  • Average high temperature: 31℃ (87℉)
  • Average low temperature: 20℃ (69℉)
  • Average humidity: 21%
  • Average sunny days: 17 days
  • Average rainfall: 15mm (1") over 6 days
17 days
of pure sunshine
6 days
of showers or rain

What to pack: If you’re heading to Tehran in June, make sure you pack t-shirts and shorts.. It stays pretty warm most of the time.


Tehran in July

  • Average temperature: 29℃ (84℉)
  • Average high temperature: 34℃ (93℉)
  • Average low temperature: 24℃ (75℉)
  • Average humidity: 19%
  • Average sunny days: 23 days
  • Average rainfall: 8mm (0") over 4 days
23 days
of pure sunshine
4 days
of showers or rain

What to pack: If you’re heading to Tehran in July, make sure you pack t-shirts and shorts.. It stays warm all day and night.


Tehran in August

  • Average temperature: 27℃ (81℉)
  • Average high temperature: 32℃ (89℉)
  • Average low temperature: 23℃ (73℉)
  • Average humidity: 21%
  • Average sunny days: 22 days
  • Average rainfall: 8mm (0") over 3 days
22 days
of pure sunshine
3 days
of showers or rain

What to pack: If you’re heading to Tehran in August, make sure you pack t-shirts and shorts.. It stays pretty warm most of the time.


Tehran in September

  • Average temperature: 23℃ (73℉)
  • Average high temperature: 27℃ (81℉)
  • Average low temperature: 18℃ (65℉)
  • Average humidity: 22%
  • Average sunny days: 22 days
  • Average rainfall: 7mm (0") over 3 days
22 days
of pure sunshine
3 days
of showers or rain

What to pack: If you’re heading to Tehran in September, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.

Tehran in October

  • Average temperature: 16℃ (61℉)
  • Average high temperature: 21℃ (69℉)
  • Average low temperature: 12℃ (54℉)
  • Average humidity: 32%
  • Average sunny days: 19 days
  • Average rainfall: 20mm (1") over 6 days
19 days
of pure sunshine
6 days
of showers or rain

What to pack: If you’re heading to Tehran in October, make sure you pack a light jumper or hoodie for the evenings and some light clothes for the daytime.


Tehran in November

  • Average temperature: 8℃ (46℉)
  • Average high temperature: 12℃ (53℉)
  • Average low temperature: 4℃ (40℉)
  • Average humidity: 45%
  • Average sunny days: 16 days
  • Average rainfall: 22mm (1") over 9 days
  • Average snow days: 1 days
16 days
of pure sunshine
9 days
of showers or rain

What to pack: If you’re heading to Tehran in November, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Tehran in December

  • Average temperature: 4℃ (39℉)
  • Average high temperature: 8℃ (46℉)
  • Average low temperature: 0℃ (32℉)
  • Average humidity: 48%
  • Average sunny days: 19 days
  • Average rainfall: 19mm (1") over 8 days
  • Average snow days: 1 days
19 days
of pure sunshine
8 days
of showers or rain

What to pack: If you’re heading to Tehran in December, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Top FAQs

The hottest month of the year in Tehran is usually July, where temperatures tend to rise to around 34℃ (93℉) in the middle of the day or early afternoon.
The month with the least amount of rain in Tehran is generally around September. The dry season often coincides with cooler weather, so you should check the temperatures in September first to make sure it’s still a good time to go.
The rainiest time of year in Tehran is generally around April, although the wetter season can sometimes extend a few months either side of April too.
If you want to get the most out of your time visiting Tehran, or if you're just afraid of the dark, the days in August are usually the longest between sunrise and sunset.

Tehran map

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