May weather forecast
Tehran, Iran

A golden illusion of the front view of the Zaid Mosque in Tehran, Iran
A golden illusion of the front view of the Zaid Mosque in Tehran, Iran

Weather in May

May, the last month of the spring in Tehran, is a moderately hot month, with temperature in the range of an average low of 15.7°C (60.3°F) and an average high of 25°C (77°F).

Temperature

In Tehran, the average high-temperature in May increases from an enjoyable 18.1°C (64.6°F) in April to a warm 25°C (77°F). The average low-temperature, in May, is 15.7°C (60.3°F).

Humidity

In May, the average relative humidity in Tehran is 29%.

Rainfall

In May, in Tehran, the rain falls for 12.5 days. Throughout May, 30mm (1.18") of precipitation is accumulated. In Tehran, during the entire year, the rain falls for 93.2 days and collects up to 244mm (9.61") of precipitation.

Snowfall

In Tehran, snow does not fall in April through October.

Daylight

In May, the average length of the day is 14h and 4min.
On the first day of the month, sunrise is at 06:12 and sunset at 19:50. On the last day of May, in Tehran, Iran, sunrise is at 05:50 and sunset at 20:14 +0430.

Sunshine

In Tehran, the average sunshine in May is 11.8h.

UV index

In May, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 6 in May transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in May in Tehran?

In May, the average high-temperature is 25°C (77°F), and the average low-temperature is 15.7°C (60.3°F).

What is the average humidity in May in Tehran?

The average relative humidity in May in Tehran is 29%.

How much does it rain in Tehran in May?

In Tehran, during May, the rain falls for 12.5 days and regularly aggregates up to 30mm (1.18") of precipitation.

When it does not snow in Tehran?

April through October are months without snowfall.

How many hours of daylight does Tehran have in May?

In Tehran, Iran, the average day length in May is 14h and 4min.

What time are sunrise and sunset in May in Tehran?

On the first day of May in Tehran, Iran, sunrise is at 06:12 and sunset at 19:50. On the last day of the month, sunrise is at 05:50 and sunset at 20:14 +0430.

How long on average sun shines in May in Tehran?

The average sunshine duration in May is 11.8h.

What is the UV index intensity in May in Tehran?

The average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover

Average temperature in May
Tehran, Iran

Average temperature in May - Tehran, Iran
  • Average high temperature in May: 25°C

The warmest month (with the highest average high temperature) is July (33.8°C).
The month with the lowest average high temperature is January (5.8°C).

  • Average low temperature in May: 15.7°C

The month with the highest average low temperature is July (24.3°C).
The coldest month (with the lowest average low temperature) is January (-2.3°C).

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Average pressure in May
Tehran, Iran

Average pressure in May - Tehran, Iran
  • Average pressure in May: 1012.2mbar

The month with the highest atmospheric pressure is December (1021.6mbar).
The month with the lowest atmospheric pressure is July (1007.1mbar).

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Average wind speed in May
Tehran, Iran

Average wind speed in May - Tehran, Iran
  • Average wind speed in May: 9.1km/h

The windiest month (with the highest average wind speed) is June (9.4km/h).
The calmest months (with the lowest average wind speed) are November and December (5.5km/h).

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Average humidity in May
Tehran, Iran

Average humidity in May - Tehran, Iran
  • Average humidity in May: 29%

The month with the highest relative humidity is February (52%).
The month with the lowest relative humidity is July (19%).

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Average rainfall in May
Tehran, Iran

Average rainfall in May - Tehran, Iran
  • Average rainfall in May: 30mm

The wettest month (with the highest rainfall) is April (38mm).
The driest month (with the least rainfall) is September (6mm).

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Average rainfall days in May
Tehran, Iran

Average rainfall days in May - Tehran, Iran
  • Average rainfall days in May: 12.5 days

The month with the highest number of rainy days is April (13.5 days).
The month with the least rainy days is September (2.9 days).

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Average snowfall in May
Tehran, Iran

Average snowfall in May - Tehran, Iran
  • Average snowfall in May: 0mm

The month with the highest snowfall is January (27mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

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Average snowfall days in May
Tehran, Iran

Average snowfall days in May - Tehran, Iran
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
Tehran, Iran

Average daylight in May / Average sunshine in May - Tehran, Iran
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 14h and 32min).
The month with the shortest days is December (Average daylight: 9h and 47min).

  • Average sunshine in May: 11h and 48min

The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is February (Average sunshine: 7h and 0min).

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Average sunshine days in May
Tehran, Iran

Average sunshine days in May - Tehran, Iran
  • Average sunshine days in May: 10.5 days

The months with the most sunshine days are July and September (22.8 days).
The month with the least sunshine days is April (9.5 days).

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Average UV index in May
Tehran, Iran

Average UV index in May - Tehran, Iran
  • Average UV index in May: 6

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in May
Tehran, Iran

Average cloud cover in May - Tehran, Iran
  • Average cloud cover in May: 12

The month with the most cloud cover is March (Cloud cover 22).
The month with the least cloud cover is September (Cloud cover 4).

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Average visibility in May
Tehran, Iran

Average visibility in May - Tehran, Iran
  • Average visibility in May: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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