Ideal weather days in Tehran
The best time to visit Tehran for warm, dry weather is April and October, with 24 to 29 such days a month.
How many days here suit you?
Set your ideal day. Each day measured at Tehran's weather station in 2023–2025 is checked against it.
They're most common in April and October.
This station doesn't record cloud cover, so the sky setting is left out here.
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Your ideal days in Tehran, month by month
Why the other days don't count
- Too cold110
- Too hot105
- Too wet28
- Too windy23
A day can fail more than one test.
Warm and dry, beach and mild days
With the Warm & dry preset (a high of 18–33 °C, no more than 1 mm of rain, wind under 20 km/h), Tehran averaged 125 days a year in 2023–2025. Every number here is counted from real measured days in Iran, not from climate averages.
Beach days (a high of 26–35 °C, almost no rain, mostly sunny) are most common in September (up to 19 a month, 73 a year). Mild, still days (16–26 °C, light wind) are most common in November (up to 18 a month, 59 a year).
What spoils the other days
Most of the days that don't count are too cold (a high under 18 °C): 110 a year, mostly in December, January and February. Another 105 are too hot (over 33 °C), mostly in June, July and August. A day can fail more than one test.
Tehran weather, month by month
| Month | Typical high | Rain days | Windy days | Clear days | Warm & dry days |
|---|---|---|---|---|---|
| January | 10 °C 50 °F | 4 | 1 | 12 | 0 of 31 |
| February | 11 °C 52 °F | 5 | 5 | 9 | 2 of 28 |
| March | 19 °C 65 °F | 8 | 2 | 11 | 14 of 31 |
| April | 27 °C 80 °F | 3 | 4 | 7 | 24 of 30 |
| May | 31 °C 87 °F | 3 | 5 | 11 | 17 of 31 |
| June | 36 °C 96 °F | 1 | 2 | 16 | 6 of 30 |
| July | 38 °C 100 °F | 0 | 0 | 18 | 0 of 31 |
| August | 38 °C 100 °F | 0 | 0 | 21 | 2 of 31 |
| September | 33 °C 91 °F | 2 | 1 | 19 | 14 of 30 |
| October | 26 °C 79 °F | 2 | 1 | 14 | 29 of 31 |
| November | 19 °C 66 °F | 6 | 2 | 10 | 16 of 30 |
| December | 12 °C 54 °F | 2 | 1 | 16 | 3 of 31 |
| Year | 36 | 23 | 164 | 125 of 365 |
Typical high is the median daily maximum. A rain day has 1 mm or more; a windy day a mean wind above 20 km/h; a clear day a daytime cloud cover of 2/8 or less on average (9:00–17:00). Days are averaged over 2023–2025 and scaled to the length of each month.
Year by year
- 2023 134 warm, dry days
- 2024 113 warm, dry days
- 2025 incomplete (8 of 12 months)
Questions
When is the best time to visit Tehran for good weather?
The best time to visit Tehran for warm, dry weather is April and October, with 24 to 29 such days a month. Beach days (a high of 26–35 °C, almost no rain, mostly sunny) are most common in September (up to 19 a month, 73 a year). Counted from measured days at Mehrabad International station, 2023–2025.
Does it rain a lot in Tehran?
On average 36 days a year had 1 mm of rain or more in 2023–2025. The wettest month was March (8 rain days), the driest July (0).
How many sunny days does Tehran get a year?
About 164 days a year had mostly clear skies (daytime cloud cover of 2/8 or less on average, 9:00–17:00), most of them in August (21).
How warm does Tehran get?
The median daily high ranged from 10 °C (50 °F) in January to 38 °C (100 °F) in July.
Nearby
- Isfahan340 km147 days
- Baku540 km, Azerbaijan109 days
- Ashgabat670 km, Turkmenistan138 days
- Shiraz690 km148 days
- Baghdad700 km, Iraq142 days
- Mashhad740 km164 days
- Tbilisi880 km, Georgia132 days
Where is the best climate in Iran?
Open Tehran on the map Set your own temperature, rain and wind limits.
Source: Mehrabad International weather station (40754099999), 7 km from the centre of Tehran, 1208 m above sea level. Daily records from NOAA's Global Surface Summary of the Day, 2023–2025; 86% of days have a complete record. A single station may not represent every part of a city, and three years is a short record.