Best Time to Visit Tehran, Tehran, Iran
Tehran is at its sunniest and driest in April–October.
The best time to visit Tehran for sunny, dry weather is April–October — 7 months of the year fit our sunny profiles at this specific location. The drier stretch runs through April–November; the wetter half falls in December–March. At the city itself, monthly average temperatures range from 3.5°C / 38.3°F in January to 29.7°C / 85.5°F in July, with rainfall from 2 mm / 0.1 in (August) to 42 mm / 1.7 in (March). These are point-value climate normals sampled at Tehran, Tehran, Iran's coordinates — usually more actionable for travellers than the country-wide average. Tehran's climate is broadly seasonal. The full month-by-month table below lets you match your travel window against our five weather profiles.
Recommended months
| Month | Temp | Rain | Feels like |
|---|---|---|---|
| April | 16.7°C62.1°F | 26 mm1″ | Sunny & Mild |
| May | 21.6°C70.9°F | 17 mm0.7″ | Sunny & Warm, Sunny & Mild |
| June | 27.1°C80.8°F | 5 mm0.2″ | Sunny & Hot |
| July | 29.7°C85.5°F | 3 mm0.1″ | Sunny & Hot |
| August | 28.6°C83.5°F | 2 mm0.1″ | Sunny & Hot |
| September | 24.4°C75.9°F | 2 mm0.1″ | Sunny & Warm |
| October | 17.7°C63.9°F | 19 mm0.7″ | Sunny & Mild |
Frequently asked questions
When is the best time to visit Tehran?
The best time to visit Tehran for sunny, dry weather is April, May, June, July, August, September, October. At the city itself, the warmest month is July averaging 29.7°C / 85.5°F, and the driest is August with about 2 mm / 0.1 in of rain. These are point-value climate normals sampled at Tehran's coordinates.
When is the rainy season in Tehran?
The rainy season at Tehran, Tehran runs through December–March, when monthly rainfall exceeds the annual median of about 26 mm / 1 in. The wettest single month is March (42 mm / 1.7 in).
What is the driest month in Tehran?
The driest month in Tehran is August, averaging about 2 mm / 0.1 in of rainfall. Temperature that month averages 28.6°C / 83.5°F.
What months should I avoid visiting Tehran?
The least comfortable months for travel to Tehran — based on point-value climate at the city — are January, February, March, December. These are the wettest or coolest months at this location. Rainfall peaks at 42 mm / 1.7 in in March, and the coldest month averages 3.5°C / 38.3°F.
Is Tehran climate different from Iran overall?
Yes, usually. Our Tehran figures are point-value climate normals sampled at the city itself, while our Iran figures are area-weighted averages across the whole country. The two can diverge substantially in geographically diverse or elevation-varied countries. The month-by-month table below reflects Tehran specifically — usually the more actionable data for a traveller planning to spend time in the city.