Tehran, IranQuick decision
When to visit Tehran?
🌞 Best time overall
May
🌡️ Optimal temperature
17°C–30°C in May
🌧 Least rain
13% rainy days in May
🌧 Wettest month
January (21%)
📅 Best score
8.8/10
By trip type
Best time by type of trip
Golestan Palace & museumsMar–May or Sep–Nov — UNESCO Golestan Palace, national museum, Treasury.
Mount DamavandJun–Sep — Iran's highest peak (5,610 m), 2-day trek.
Bazaar & Persian cuisineYear-round — Grand Bazaar, kebab koobideh, tahdig, saffron tea.
BudgetNov–Feb — off-season, Iran very affordable, favorable exchange rate.
Monthly climate data
Tehran weather month by month
| Month | Min °C | Max °C | Rainy days (%) | Precip. mm/d | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌫️ January | 0°C | 9°C | 21% | 1.3 | 9.2h | 5.6/10 |
| 🌫️ February | 2°C | 11°C | 26% | 1.5 | 10.0h | 6.2/10 |
| ⛅ March | 6°C | 17°C | 27% | 1.7 | 10.9h | 7.2/10 |
| 🌤️ April | 12°C | 24°C | 22% | 1.3 | 11.6h | 8.3/10 |
| ☀️ May | 17°C | 30°C | 13% | 0.5 | 12.8h | 8.8/10 |
| 🥵 June | 23°C | 36°C | 2% | 0.0 | 13.1h | 6.9/10 |
| 🥵 July | 26°C | 38°C | 2% | 0.0 | 13.0h | 6.9/10 |
| 🥵 August | 25°C | 36°C | 0% | 0.0 | 12.7h | 6.9/10 |
| ☀️ September | 21°C | 32°C | 1% | 0.1 | 11.1h | 8.3/10 |
| ☀️ October | 14°C | 25°C | 9% | 0.5 | 10.8h | 8.7/10 |
| ⛅ November | 7°C | 17°C | 19% | 1.1 | 9.3h | 7.2/10 |
| 🌫️ December | 2°C | 11°C | 18% | 1.2 | 9.0h | 6.4/10 |
Ideal
Fair
Challenging climate
Source: Open-Meteo · 10 years
Seasonal breakdown
What to expect each season
🌸 Spring (Mar–May) — Good time
Average 24°C, 21% rainy days, 11.8h sunshine/day. Score: 8.1/10.
☀️ Summer (Jun–Aug) — Acceptable
Average 37°C, 1% rainy days, 12.9h sunshine/day. Score: 6.9/10.
🍂 Autumn (Sep–Nov) — Good time
Average 25°C, 10% rainy days, 10.4h sunshine/day. Score: 8.1/10.
❄️ Winter (Dec–Feb) — Acceptable
Average 10°C, 22% rainy days, 9.4h sunshine/day. Score: 6.1/10.
Accommodation
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Check availability during the recommended period
Tip : March, June offer a good weather/price balance — decent score with fewer crowds.
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Activities and tours in Tehran
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Flights
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Monthly weather
Detailed weather by month
FAQ
Frequently asked questions
May is ideal with 13% rainy days and 30°C.
January is the wettest month with 21% rainy days.
Yes, May is the best month with an average of 30°C.
In winter, the average score is 6.1/10. Acceptable conditions for cultural visits.
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