Best Time to Visit
Best Time to Visit Tehran
🇮🇷 Tehran, Iran · Asia
Based on 30-year climate data (1991-2020) from Open-Meteo
Recommended Travel Months
Jan
6°
-5°
Good
Feb
8°
-3°
Good
Mar
14°
2°
Good
Apr
20°
8°
Good
May
27°
14°
Great
Jun
33°
20°
Good
Jul
36°
24°
Good
Aug
35°
23°
Good
Sep
30°
19°
Great
Oct
23°
12°
Great
Nov
14°
4°
Good
Dec
8°
-2°
Good
Month-by-Month Weather in Tehran
| Month | High | Low | Rain Days | Sunshine | Humidity | UV | Rating | Details |
|---|---|---|---|---|---|---|---|---|
| January | 6°C | -5°C | 8 | 9h | 65% | 2 | Good | View |
| February | 8°C | -3°C | 9 | 9h | 65% | 2 | Good | View |
| March | 14°C | 2°C | 9 | 10h | 65% | 6 | Good | View |
| April | 20°C | 8°C | 9 | 11h | 65% | 6 | Good | View |
| MayRecommended | 27°C | 14°C | 5 | 12h | 65% | 9 | Great | View |
| June | 33°C | 20°C | 2 | 13h | 65% | 9 | Good | View |
| July | 36°C | 24°C | 1 | 13h | 65% | 9 | Good | View |
| August | 35°C | 23°C | 1 | 13h | 65% | 9 | Good | View |
| SeptemberRecommended | 30°C | 19°C | 1 | 11h | 65% | 6 | Great | View |
| OctoberRecommended | 23°C | 12°C | 4 | 10h | 65% | 6 | Great | View |
| November | 14°C | 4°C | 7 | 9h | 65% | 2 | Good | View |
| December | 8°C | -2°C | 8 | 8h | 65% | 2 | Good | View |
Data source: Open-Meteo ERA5 reanalysis archive, 30-year historical normals (1991-2020). Temperatures in Celsius. Sunshine hours are daily averages.
Seasonal Guide to Tehran
Spring (March to May)
Avg: 20°C high, 8°C low
Spring in Tehran brings gradually mild temperatures. Daytime highs reach around 20°C (68°F) while nights cool to 8°C (46°F). Expect occasional showers, so pack a light rain jacket.
Summer (June to August)
Avg: 35°C high, 22°C low
Summer is the hottest season in Tehran, with temperatures reaching 35°C (95°F). Extreme heat can make outdoor activities uncomfortable, especially midday. Air-conditioned accommodation is essential. Long daylight hours and abundant sunshine provide plenty of time to explore.
Fall (September to November)
Avg: 22°C high, 12°C low
Fall in Tehran is one of the best times to visit. Temperatures settle around 22°C (72°F) during the day and 12°C (54°F) at night. Drier weather and thinner crowds make this an appealing alternative to peak summer travel.
Winter (December to February)
Avg: 7°C high, -3°C low
Winter in Tehran brings the coolest weather of the year. Layers are essential, and some outdoor attractions may have reduced hours. However, hotel prices typically drop and popular sites are less crowded.
When to Avoid Tehran
The least favorable time to visit Tehran is February and January. During this period, you can expect cold weather.
February
Challenges: cold weather
January
Challenges: cold weather
March
Challenges: less favorable weather conditions
Note: visiting during off-peak months often means lower prices, fewer crowds, and a more authentic experience. Consider your priorities when planning your trip.
What to Pack for Tehran
Packing recommendations for visiting Tehran during the best travel months (May, October, September), when temperatures range from 15°C to 27°C:
- +Light layers for warm days and cooler evenings
- +Comfortable walking shoes
- +Sunscreen (SPF 30+), sunglasses, and a wide-brim hat
- +A light sweater or cardigan for evening temperature drops
- +Reusable water bottle
- +Universal power adapter
Tehran Year-Round Climate Overview
Tehran has a semi-arid climate (Koppen classification: BSk). The warmest month is July with highs of 36°C, while the coldest month is January at just 6°C. Annual rainfall averages 346mm across approximately 64 rain days.
| Metric | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °C | 6 | 8 | 14 | 20 | 27 | 33 | 36 | 35 | 30 | 23 | 14 | 8 |
| Low °C | -5 | -3 | 2 | 8 | 14 | 20 | 24 | 23 | 19 | 12 | 4 | -2 |
| Rain Days | 8 | 9 | 9 | 9 | 5 | 2 | 1 | 1 | 1 | 4 | 7 | 8 |
| Rain mm | 41 | 47 | 61 | 48 | 21 | 6 | 4 | 4 | 4 | 21 | 46 | 43 |
| Sun h/day | 9 | 9 | 10 | 11 | 12 | 13 | 13 | 13 | 11 | 10 | 9 | 8 |
| Humidity % | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 |
| UV Index | 2 | 2 | 6 | 6 | 9 | 9 | 9 | 9 | 6 | 6 | 2 | 2 |
Compare Nearby Destinations
Considering alternatives to Tehran? Compare the best travel months for nearby cities:
Frequently Asked Questions
What is the best month to visit Tehran?+
The best time to visit Tehran is May, October, September. During these months, temperatures average 27°C (81°F) with 11 hours of daily sunshine and only 3 rain days per month. These conditions offer the most comfortable weather for sightseeing and outdoor activities.
What is the worst time to visit Tehran?+
The least ideal time to visit Tehran is February and January. During this period, you can expect cold weather. While Tehran can still be visited during this time (often with fewer crowds and lower prices), the weather may limit outdoor activities.
Is Tehran good to visit in summer?+
Summer in Tehran (June to August) brings temperatures of 35°C (95°F) highs and 22°C (72°F) lows, with about 13 hours of sunshine and 1 rain days per month. This is generally a good time to visit.
What is the rainy season in Tehran?+
The rainy season in Tehran runs from January to December, when average rain days increase to 9 days per month. Total monthly precipitation during this period averages 48mm.
What should I pack for Tehran?+
When visiting Tehran during the best travel months (May, October, September), pack light layers for warm days and cooler evenings, comfortable walking shoes, and a light jacket. Rain gear is generally not needed. Sunscreen and sunglasses are recommended, especially given the high UV index.
Is May a good time to visit Tehran?+
Yes, May is one of the best months to visit Tehran. Expect average highs of 27°C (81°F), 12 hours of daily sunshine, and only 5 rain days. The weather is ideal for exploring the city, visiting outdoor attractions, and enjoying local activities.
Detailed Monthly Weather for Tehran
For a complete day-by-day weather breakdown including packing lists, activities, and local events, explore each month individually:
January
February
March
April
May
June
July
August
September
October
November
December
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