The month in detail
What to expect in May
Spring marks the start of the good season in Tehran. Temperatures rise (86°F) and tourists have not yet arrived en masse. Rain risk remains low (12% of days), leaving good room for outdoor activities.
May is the best month of the year in Tehran. Compared to April: +11°F daytime, 5 pts fewer rainy days, +1.9h of sun per day.
This month's conditions
What it's like in May
UV index
8 · high
sunscreen and hat advised
Feels like
dry air
-1°
Daylight
13.9h of daylight
Air quality
poor
AQI 64
Compare
Is May the right month?
May is actually the best month of the year in Tehran. Good timing.
Book
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
Stay
Hotels & rentals · Tehran
Expedia →
Activities
Tours, tickets, experiences
See ↓
Flights
Multi-airline comparator
Kiwi →
🎟️ Activities & tours · Tehran
GetYourGuide selection · free cancellation
Practical info
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a city break.
Country · Iran
🗣️LanguagePersan
💶CurrencyRial iranien (﷼)
🚗DrivingRight-hand
🛡️Safety ⓘAt risk · 4/5
💰Cost of living ⓘVery cheap · 1/5
🌡️ Climate
🌍Climate typeTemperate
📈Climate trend ⓘStable
🔥Hottest monthJuly · 100°F
❄️Coolest monthJanuary · 48°F
🌧️Rainiest month ⓘFebruary · 19%
🏛️ City break
📅Tourist peak seasonJune → August
☔Indoor sights ⓘYear-round
🚇Public transportGood
Explore
Other destinations in May
If May doesn't convince you for this destination, compare with others.
Location
Where is Tehran ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
IranTemperate climate with a 8.9 → 3.6 gap between best and worst month. 10 years of ERA5 data to choose by project.
35.69°N · 51.39°E
Questions
Frequently asked questions
What is the best time to visit Tehran?
September is the best month with 90°F highs, 70°F lows, 10.3h of sunshine and 1.0% rainy days. The months of September & May offer comparable conditions.
How many hours of sunshine does Tehran get in September?
Tehran averages 10.3 sunshine hours per day in September. It is the sunniest month with a climate score of 8.6/10.
What is the rainiest month in Tehran?
July is the most unfavourable month with July has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Tehran in September?
In September, overnight lows reach 70°F, while afternoon highs average 90°F.
Is Tehran good in winter?
In winter (December-February), Tehran scores 4.1/10 on average — Difficult period — prefer the peak season.. The best month overall remains September with a score of 8.6/10.
When should you avoid Tehran?
July is the most difficult month to visit Tehran, with July has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Do you need sun protection in Tehran in May?
The average UV index reaches 8 in May in Tehran (high), with about 13.9h of daylight. Sunscreen and hat advised.