Weather & climate FAQ — Iran
Answers to the most-searched weather and climate questions about Iran, from 2020–2024 daily observations across 5 cities.
Iran hub ★ Best time to visit Iran
Frequently asked questions
What is the weather like in Iran?
Climolog covers 5 cities in Iran with 2020–2024 daily weather observations. Typical monthly highs range from 8.4°C (in January) to 36.4°C (in July); see each city's page for day-by-day history and month-by-month averages.
What is the climate in Iran by month?
Across Iran, the hottest month is July (avg high 36.4°C) and the coldest is January (avg low -2.3°C). For the full month-by-month breakdown across every city, see the best-time-to-visit guide for Iran.
When is the best time to visit Iran?
The best months to visit Iran are September, October, May — the highest travel-comfort scores across the country's cities (comfortable temperatures, low rainfall, and good sunshine). See the month-by-month ranking for Iran for the best city in each month.
What is the hottest month in Iran?
July is the hottest month, averaging a high of 36.4°C across Iran's cities. See July climate details.
What is the coldest month in Iran?
January is the coldest month, averaging a low of -2.3°C across Iran's cities. See January climate details.
What is the wettest month in Iran?
March is the wettest month, averaging about 45.4 mm of rain per month across Iran's cities. See March climate details.
What is the driest month in Iran?
August is the driest month, averaging about 1 mm of rain per month across Iran's cities. See August climate details.
When is the rainy season in Iran?
The wettest months in Iran are January, February, March, which together form the main rainy season. Travel is usually drier and more comfortable in September.
Which city in Iran has the best weather?
Among Iran's cities, Mashhad has the best weather — its best month is September (travel-comfort score 100/100). See its best-time-to-visit guide.
How many cities does Climolog cover in Iran?
Climolog covers 5 cities in Iran with 2020–2024 daily weather data. Browse them all on the Iran hub.
Best time to visit by month
Best time to visit in September Best time to visit in October Best time to visit in May
Each links to the month hub listing every city whose single best-weather month is that month.