The Frontier Gazette & Almanack
“Fair Warning for Every Town Under the Sky” · Est. 1881
Measure in

Tehran Weather in May

Tehran in May

The short of it: Tehran in May averages a high of 28 °C (82 °F) and a low of 18 °C (64 °F), with 12 mm (0.47 in) of rain and about 14 h 2 min of daylight. Rated 5 of 5 for a visit; the best months are April and October. Source: TerraClimate climate normals, 1991–2020.

Average high 28° · low 18° · rain 12 mm · daylight 14 h 2 min

✦✦✦✦✦ Recommended for a visit · best months: April & October

Thirty years of records give Tehran an average May high of 28°, a low of 18° and some 12 mm of rain. Spring takes hold here: highs climb 6° from April to about 28°, with nights near 18°. Rain is scarce, about 12 mm, the 8th wettest month.

The sun is up for about 14 h 2 min in mid-May, 59 minutes more than a month before.

For the traveller: pack light clothes and a jacket for the evening. The Almanac rates May 5 of 5 for a visit; the finest months here are April and October.

Against its neighbours, Tehran runs about middling and about as wet in May. Vaḩīdīyeh, 5 km to the ENE, is 1° cooler by day.

May in Tehran, by the numbers

Warmth rank
5th warmest of 12
Rain rank
8th wettest of 12
Versus April
6° warmer, 17 mm less rain
Versus June
6° colder
Day–night spread
10°
Snow season
seldom any
Daylight, mid-month
14 h 2 min
Average wind
12 km/h

Neighbouring Towns

May averages · distance by the crow’s flight
TownDistanceHighLowRain
VaḩīdīyehTehran5 km ENE27°17°12 mm
Shahrak-e QodsTehran8 km NNW26°16°14 mm
Morteẕá GerdTehran12 km SSW28°18°11 mm
TajrīshTehran12 km N25°15°16 mm
Shahrak-e ‘Alā’īnTehran13 km SSE28°18°11 mm
AndīshehTehran14 km WNW28°17°12 mm
Chahār DangehTehran14 km SW28°17°12 mm
BāqershahrTehran18 km S28°17°11 mm

The Almanac · Tehran Month by Month

Climate normals 1991–2020 · pick a month
PrecipitationAverage highAverage low
Recommended
The Almanac Speaks
May
✦✦✦✦✦

Spring takes hold here: highs climb 6° from April to about 28°, with nights near 18°. Rain is scarce, about 12 mm, the 8th wettest month.

Climate of Tehran by month
MonthHighLowRainWindDaylightVisit
January9°2°37 mm8 km/h9 h 59 min✦✦✦
February12°4°36 mm9 km/h10 h 50 min✦✦✦✦
March17°9°36 mm12 km/h11 h 52 min✦✦✦✦✦
April22°14°29 mm13 km/h13 h 3 min✦✦✦✦✦
May28°18°12 mm12 km/h14 h 2 min✦✦✦✦✦
June34°23°5.0 mm12 km/h14 h 34 min✦✦✦
July36°25°3.0 mm11 km/h14 h 21 min✦✦✦
August35°24°2.0 mm10 km/h13 h 30 min✦✦✦
September31°20°2.0 mm9 km/h12 h 21 min✦✦✦✦
October24°15°18 mm9 km/h11 h 13 min✦✦✦✦✦
November15°8°32 mm8 km/h10 h 13 min✦✦✦✦
December10°4°35 mm8 km/h9 h 45 min✦✦✦✦

Questions Readers Ask about Tehran in May

Answered from the wire & the Almanac

What is the weather like in Tehran in May?

Days average 28 °C (82 °F) and nights 18 °C (64 °F), with about 12 mm (0.47 in) of rain over the month. Spring takes hold here: highs climb 6° from April to about 28°, with nights near 18°. Rain is scarce, about 12 mm, the 8th wettest month.

Is May a good time to visit Tehran?

The Almanac gives May 5 of 5 (recommended). The best months are April and October.

How long are the days in Tehran in May?

In mid-May the sun is up for about 14 h 2 min. The days are lengthening — from 9 h 45 min in December to 14 h 34 min in June.

Does it snow in Tehran in May?

Hardly — May nights average 18 °C (64 °F), above freezing.

What should I pack for Tehran in May?

Light clothes and a jacket for the evening.

More Towns in Iran

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The Editor’s Remark

“Weather is the only news that never grows stale. Each morning the sky writes its own front page, and we at Wanted Weather are but its telegraph operators.”— J. Whitmore, Editor