The month in detail
What to expect in September
Autumn in Isfahan is often underrated: 33°C, golden light and declining crowds. An interesting window. Rain is virtually absent (0% of days) — ideal for planning without a backup. A good balance between weather and crowds, even if May (9.2/10) remains theoretically better.
September ranks 3 out of 12 months in Isfahan. Compared to August: −3°C daytime, −0.8h of sun per day.
This month's conditions
What it's like in September
UV index
7 · high
sunscreen and hat advised
Feels like
dry air
-2°
Daylight
12.2h of daylight
Air quality
fair
AQI 59
Compare
Is September the right month?
The best month in Isfahan is May (9.2/10), 0.5 pt higher than September.
Book
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
Stay
Hotels & rentals · Isfahan
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Activities
Tours, tickets, experiences
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Flights
Multi-airline comparator
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🎟️ Activities & tours · Isfahan
GetYourGuide selection · free cancellation
Practical info
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a city break.
Country · Iran
🗣️LanguagePersan
💶CurrencyRial iranien (﷼)
🚗DrivingRight-hand
🛡️Safety ⓘAt risk · 4/5
💰Cost of living ⓘVery cheap · 1/5
🌡️ Climate
🌍Climate typeTemperate
📈Climate trend ⓘ+1.39°C/decade
🔥Hottest monthJuly · 38°C
❄️Coolest monthJanuary · 10°C
🌧️Rainiest month ⓘJanuary · 12%
🏛️ City break
📅Tourist peak seasonJune → August
☔Indoor sights ⓘYear-round
🚇Public transportGood
Explore
Other destinations in September
If September doesn't convince you for this destination, compare with others.
Location
Where is Isfahan ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
IranTemperate climate with a 9.2 → 3.8 gap between best and worst month. 10 years of ERA5 data to choose by project.
32.65°N · 51.68°E
Questions
Frequently asked questions
What is the best time to visit Isfahan?
May is the best month with 30.0°C highs, 15.0°C lows, 10.2h of sunshine and 5.0% rainy days. The months of May & October offer comparable conditions.
How many hours of sunshine does Isfahan get in May?
Isfahan averages 10.2 sunshine hours per day in May. It is the sunniest month with a climate score of 9.0/10.
What is the rainiest month in Isfahan?
July is the most unfavourable month with July has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Isfahan in May?
In May, overnight lows reach 15.0°C, while afternoon highs average 30.0°C.
Is Isfahan good in winter?
In winter (December-February), Isfahan scores 5.1/10 on average — Difficult period — prefer the peak season.. The best month overall remains May with a score of 9.0/10.
When should you avoid Isfahan?
July is the most difficult month to visit Isfahan, with July has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Do you need sun protection in Isfahan in September?
The average UV index reaches 7 in September in Isfahan (high), with about 12.2h of daylight. Sunscreen and hat advised.