Climate averages 1991–2020
Isfahan weather
in July.
A very hot, very dry month: the warmest and the joint 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a very hot month in Isfahan: daytime highs average 36.9°C and nights cool to about 21.8°C. By daytime temperature it is the warmest month of the year.
Rain is very rare: less than 1 mm falls in a typical July (the joint 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 04 min on an average July day.
The nearest other city in this atlas is Khomeynī Shahr (13 km away). In July its highs average 37.0°C, about as warm as Isfahan, with almost no rain (under 1 mm).
Among the 128 cities listed in Iran, Isfahan ranks 44th of 128 for the warmest July highs and joint 10th of 128 for the driest July (rainfall, lowest first). The mean July high of those 128 cities is 35.7°C; Isfahan is 1.2°C warmer than that mean.
From July to August, average highs fall by 1.4°C to 35.5°C, and monthly rainfall stays under 1 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Isfahan climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.4°C-3.4°C | -3.4°C | 15 | 3.2 | 10.310 h |
| February | 12.1°C-1.6°C | -1.6°C | 12 | 2.8 | 11.011 h |
| March | 17.3°C2.3°C | 2.3°C | 15 | 3.4 | 12.012 h |
| April | 23.2°C8.2°C | 8.2°C | 9.8 | 3.0 | 13.013 h |
| May | 28.8°C13.5°C | 13.5°C | 7.1 | 1.9 | 13.814 h |
| June | 34.4°C18.6°C | 18.6°C | 0.8 | 0.3 | 14.314 h |
| July, selected | 36.9°C21.8°C | 21.8°C | 0.2 | 0.1 | 14.114 h |
| August | 35.5°C20.4°C | 20.4°C | 0 | 0.0 | 13.413 h |
| September | 31.3°C15.5°C | 15.5°C | 0.2 | 0.1 | 12.412 h |
| October | 24.4°C9.6°C | 9.6°C | 2.6 | 0.7 | 11.411 h |
| November | 15.7°C3.0°C | 3.0°C | 15 | 2.5 | 10.511 h |
| December | 10.2°C-1.5°C | -1.5°C | 12 | 3.0 | 10.010 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Khomeynī Shahr in JulyIran · 13 kmHigh 37.0°C · Low 21.8°C · 0.4 mm rain
- Bahārestān in JulyIran · 20 kmHigh 37.1°C · Low 22.0°C · 0.2 mm rain
- Shāhīn Shahr in JulyIran · 26 kmHigh 36.1°C · Low 20.7°C · 0.4 mm rain
- Najafābād in JulyIran · 29 kmHigh 36.7°C · Low 21.7°C · 0.5 mm rain
- Fūlād Shahr in JulyIran · 32 kmHigh 36.4°C · Low 21.5°C · 0.2 mm rain
- Shahreẕā in JulyIran · 74 kmHigh 34.6°C · Low 20.8°C · 0.4 mm rain
- Shahr-e Kord in JulyIran · 85 kmHigh 32.2°C · Low 18.1°C · 0.4 mm rain
- Kashan in JulyIran · 150 kmHigh 37.7°C · Low 25.8°C · 0.2 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Isfahan) is explained once on the Isfahan year overview and on the Sources, method and limits page.