When is the best time to visit Iran?

The best time to visit depends on where you go. Isfahan: April & May; Persepolis: April & May; Shiraz: April & May.

Which month is best overall in Iran?

Averaged across our 3 destinations in Iran, the strongest months are April, May, October. Individual places can shift a month or two earlier or later — each destination page lists its own peak.

Which cities in Iran does bestime.to cover?

We currently score 3 destinations in Iran: Isfahan, Persepolis, Shiraz.

How are the Iran travel scores calculated?

Every city is rated 0-10 per month using ERA5 climate normals - temperature, precipitation, humidity, daylight, and days with 6+ hours of sunshine.

Best Time to Visit Iran: Weather by Month

01 · Iran

About Iran

Iran is a highland country between the Caspian Sea and the Persian Gulf, ringed by mountains with desert plateaus in the centre. The ruins of Persepolis near Shiraz, the mosques and squares of Isfahan, and the desert city of Yazd sit alongside Tehran's bazaars and gardens. Spring and autumn are the most comfortable for cities and deserts, summers are very hot inland, and winters are cold in the northwest while the Gulf coast stays mild.

Did you know?

Iran holds 27 UNESCO World Heritage sites, from Persepolis and Isfahan's mosques to the Persian gardens and qanats.
Iran produces around 90% of the world's saffron, grown mainly around Khorasan in the north-east.
The Alborz and Zagros mountains frame the central deserts, and Mount Damavand rises to 5,610 metres.

Weather

Iran: weather by month

Warmest month: July (31°C). Wettest: January (41 mm). Best overall score: April (10.0/10).

Month	Avg temp	Rain	Sunny days	Score
January	4°C	41 mm	4	6.2/10
February	6°C	38 mm	8	6.9/10
March	11°C	33 mm	17	8.7/10
April	18°C	13 mm	27	10.0/10
May	22°C	27 mm	31	9.9/10
June	29°C	10 mm	30	6.5/10
July	31°C	15 mm	31	6.0/10
August	30°C	4 mm	31	6.1/10
September	25°C	24 mm	26	8.1/10
October	19°C	33 mm	16	9.3/10
November	12°C	34 mm	6	7.8/10
December	6°C	34 mm	2	6.5/10

Travel Tips

01Best time & timing: Target April, May, October — that is where comfort scores peak (10.0/10). July is the weakest month at 6.0/10.
02Weather & what to pack: April averages 18°C with 13 mm of rain and about 27 days with 6+ hours of sunshine. Pack layers you can shed by midday plus one warm layer for the evening.
03Crowds & value: If budget matters, target October — 9.3/10 with lighter demand than April.

Things to do in Iran

Iran. Live activities and tours from GetYourGuide, matched to this destination.

FAQ

Frequently asked

When is the best time to visit Iran?: The best time to visit depends on where you go. Isfahan: April & May; Persepolis: April & May; Shiraz: April & May.
Which month is best overall in Iran?: Averaged across our 3 destinations in Iran, the strongest months are April, May, October. Individual places can shift a month or two earlier or later — each destination page lists its own peak.
Which cities in Iran does bestime.to cover?: We currently score 3 destinations in Iran: Isfahan, Persepolis, Shiraz.
How are the Iran travel scores calculated?: Every city is rated 0-10 per month using ERA5 climate normals - temperature, precipitation, humidity, daylight, and days with 6+ hours of sunshine.

Climate data: Open-Meteo ERA5 historical archive, the five most recent complete years (2021–2025). Scores are monthly averages for that window, not forecasts, and short-window precipitation can differ from longer-term normals. “Sunny days” count days with at least 6 hours of measured sunshine — they are not dry days.

Curated in Iran