Weather in Tehran in May 2025
Average weather
Average temperature in Tehran in May
The temperature in May is +28°C on average, with a range between a maximum of +35°C during the day and a minimum of +8°C at night.
The average maximum temperature goes up 22% by the end of the month, compared with the beginning of the month, from +24°C to +30°C.
Is Tehran warm or cold in May?
Tehran is typically warm in May.
Maximum temperatures go up compared to the previous month from +20°C to +26°C. The minimum temperature also goes up from +9°C to +15°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how May is compared to other months in Tehran:
Climate in Tehran in May
| April | May | June | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +20°C | +26°C | +33°C | ||||
| Min. temperature | ||||||
| -7°C | 0°C | +10°C | ||||
| Max. temperature | ||||||
| +32°C | +37°C | +41°C | ||||
| Rainfall | ||||||
| 35 mm | 16 mm | 2 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 42% | 33% | 24% | ||||
| Air pressure | ||||||
| 1013 HPa | 1012 HPa | 1008 HPa | ||||
| Sunny days | ||||||
| 8 | 13 | 22 | ||||
| Cloudy days | ||||||
| 8 | 8 | 4 | ||||
| Rainy days | ||||||
| 11 | 8 | 2 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
May weather is still as good as in April. It’s getting warmer as May arrives. The average maximum temperature goes up from +20°C to +26°C during the day. As May arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 35 mm to 16 mm. It feels drier, as humidity decreases from 42% to 33%. The average wind speed doesn’t change much during May, staying around 2 m/s. The good news is there are likely to be more sunny days in May, from 8 to 13.
June brings much the same weather, it remains good.
Wind
The average wind speed is 4 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Tehran is gradually increasing during May, going from 3 m/s to 4 m/s over the course of the month.
Rain
How was the weather last May in Tehran?
Climate Change over Years
The climate in Tehran in May has not changed much over the last 43 years.
The average temperature was the lowest in 1982 (+18°C) and the highest in 2021 (+24°C). The driest year was 2008 with only 117 mm of rainfall, and the wettest year was 2020 with 366 mm.
FAQ
Is May a good time to visit Tehran?
Can you sunbathe in Tehran in May?
Is Tehran rainy in May?
Is it sunny in Tehran in May?
Other cities in Iran
Monthly weather in Tehran
Source of the data
For this page, we’ve looked at the typical weather in Tehran, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.