WanderWhen

Tehran weather in May

May is one of the best months to visit Tehran. Expect highs around 29°C, lows near 17°C, and about 4 days with rain.

8.7 · Excellenttravel score for May
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Avg high
29°C
Avg low
17°C
Rainfall
15 mm
Rain days
4
Sunshine
12 h/day
Daylight
13.9 h

What to pack for Tehran in May

  • light, breathable clothing
  • sun protection (hat, SPF 50)

Humidity averages 29%; max daily wind around 21 km/h.

How May compares

January: 4.9/10 JFebruary: 6.4/10 FMarch: 8.9/10 MApril: 10.0/10 AMay: 8.7/10 MJune: 4.1/10 JJuly: 2.6/10 JAugust: 3.9/10 ASeptember: 6.8/10 SOctober: 10.0/10 ONovember: 8.8/10 NDecember: 6.1/10 D

Best months in Tehran: April & October. See the full best time to visit Tehran guide.

Tehran in May: the details

In May, Tehran sees average daytime highs of 29°C (85°F) and overnight lows of 17°C (63°F). Rainfall totals roughly 15 mm across 4 rainy days, and the sun shines about 12 hours per day with 13.9 hours of daylight mid-month. Relative humidity averages 29%.

These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Tehran, Iran (35.69, 51.42) — see our methodology. Actual conditions vary year to year.

Where should you go next month?

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