All countries
Best Time to Visit Iran
Climate based on Tehran • 2015–2024
The best overall weather in Iran is in May, with average highs around 29°C. The single best 14-day window: Sep 19 - Oct 2. The hottest month is July (38°C highs) and the coolest is January (9°C highs).
Year-at-a-glance heatmap
Each cell is colored by the typical daytime high for that day. Hover for rainfall and sunshine.
1
5
10
15
20
25
30
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
- Freezingbelow 0°C
- Very Cold0–5°C
- Cold5–12°C
- Fresh12–18°C
- Comfortable18–25°C
- Warm25–30°C
- Very Warm30–39°C
- Smoking Hot39°C+
Best 14-day travel windows
Top pick
Sep 19 - Oct 2
14-day window • Avg 24°C • Very Warm
Alternative 1
May 14 - May 27
14-day window • Avg 24°C • Very Warm
Alternative 2
Sep 5 - Sep 18
14-day window • Avg 27°C • Very Warm
Month-by-month breakdown
January
Cold4°Cavg
- 9°C / -0°C
- 41mm total
- 8.5h sun/day
February
Cold6°Cavg
- 11°C / 1°C
- 47mm total
- 8.8h sun/day
March
Fresh11°Cavg
- 17°C / 6°C
- 57mm total
- 9.6h sun/day
April
Comfortable17°Cavg
- 23°C / 11°C
- 38mm total
- 10.8h sun/day
May
Warm23°Cavg
- 29°C / 17°C
- 18mm total
- 12.0h sun/day
June
Very Warm29°Cavg
- 36°C / 23°C
- 1mm total
- 12.9h sun/day
July
Very Warm32°Cavg
- 38°C / 26°C
- 1mm total
- 12.8h sun/day
August
Very Warm30°Cavg
- 36°C / 24°C
- 0mm total
- 12.7h sun/day
September
Very Warm26°Cavg
- 32°C / 21°C
- 3mm total
- 11.3h sun/day
October
Comfortable19°Cavg
- 24°C / 14°C
- 21mm total
- 10.2h sun/day
November
Fresh11°Cavg
- 16°C / 6°C
- 40mm total
- 8.4h sun/day
December
Cold6°Cavg
- 11°C / 1°C
- 39mm total
- 7.9h sun/day
Plan your trip to Iran
Found your dates? Use TimeOffCalendar to line up the trip with your time off, public holidays, and your partner's schedule. Free for one person, forever.
Plan my time off