Tehran in May
In May, Tehran averages 30°C (85°F) during the day and 17°C (62°F) at night, with around 10 days of rain (14 mm total).
ShoulderConditions are warm and beach-friendly. Plan for unsettled weather and bring rain gear.
May offers comfortable temperatures in Tehran, with some rain to plan around.
How May compares to the rest of the year in Tehran
May is in the middle of the year for warmth in Tehran (5th of 12) and moderately rainy compared to the rest of the year (6th of 12). Daytime temperature runs 6°C above the annual average (23°C). May runs 7°C warmer than April (23°C) and warms a further 6°C into June (36°C).
May sunrise & sunset in Tehran
Times shown for Tehran local time (Asia/Tehran), calculated for the 15th of May. They shift by a few minutes day to day across the month.
Photography light in Tehran — May
Golden-hour and blue-hour windows for the 15th of May, in Tehran's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Tehran in May
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on May's tier (Shoulder) and Tehran's popularity.
Crowds & pricing — May in Tehran
Tehran is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Sun & mosquito risk — May in Tehran
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Tehran in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 9°C / 47°F | -1°C / 30°F | 37 mm | 11 | — |
| February | 11°C / 52°F | 1°C / 33°F | 41 mm | 11 | — |
| March | 17°C / 62°F | 6°C / 42°F | 60 mm | 16 | — |
| April | 23°C / 73°F | 11°C / 51°F | 36 mm | 13 | — |
| May | 30°C / 85°F | 17°C / 62°F | 14 mm | 10 | — |
| June | 36°C / 96°F | 23°C / 73°F | 2 mm | 2 | — |
| July | 37°C / 99°F | 26°C / 78°F | 2 mm | 2 | — |
| August | 36°C / 96°F | 24°C / 75°F | 1 mm | 1 | — |
| September | 32°C / 89°F | 20°C / 68°F | 2 mm | 2 | — |
| October | 24°C / 75°F | 13°C / 56°F | 23 mm | 7 | — |
| November | 15°C / 58°F | 5°C / 42°F | 42 mm | 11 | — |
| December | 10°C / 51°F | 1°C / 34°F | 39 mm | 9 | — |
Other cities with similar May weather
🌍 See the full ranked list of climate twins for Tehran in May →
Frequently asked questions
How hot is Tehran in May?
In May, Tehran averages a high of 30°C (85°F) and a low of 17°C (62°F) — generally hot.
Does it rain a lot in Tehran in May?
May can be fairly wet in Tehran, with about 10 rainy days on average.
Is May a good time to visit Tehran?
May is hot. It suits travelers who are comfortable with hot weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Tehran in May?
Pack lightweight, breathable clothing, sunglasses and sunscreen, plus a compact umbrella or rain jacket. See the full May packing list for Tehran for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.