Climate averages 1991–2020
Isfahan weather
in January.
A cool, fairly dry month: the coolest and one of the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a cool month in Isfahan: daytime highs average 8.4°C and nights cool to about -3.4°C. By daytime temperature it is the coolest month of the year.
Expect about 15 mm of rain on roughly 3 days, which makes January a fairly dry month (one of the wettest months of the year). Daylight, from sunrise to sunset, lasts about 10 h 16 min on an average January day.
The nearest other city in this atlas is Khomeynī Shahr (13 km away). In January its highs average 8.5°C, about as warm as Isfahan, with 17 mm of rain.
Among the 128 cities listed in Iran, Isfahan ranks 56th of 128 for the warmest January highs and joint 3rd of 128 for the driest January (rainfall, lowest first). The mean January high of those 128 cities is 8.6°C; Isfahan is 0.2°C cooler than that mean.
From January to February, average highs rise by 3.7°C to 12.1°C, and monthly rainfall falls from 15 mm to 12 mm.
The annual picture
January 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, selected | 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 | 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
January in nearby cities
- Khomeynī Shahr in JanuaryIran · 13 kmHigh 8.5°C · Low -4.4°C · 17 mm rain
- Bahārestān in JanuaryIran · 20 kmHigh 9.0°C · Low -3.8°C · 15 mm rain
- Shāhīn Shahr in JanuaryIran · 26 kmHigh 8.1°C · Low -2.8°C · 17 mm rain
- Najafābād in JanuaryIran · 29 kmHigh 8.2°C · Low -5.2°C · 21 mm rain
- Fūlād Shahr in JanuaryIran · 32 kmHigh 8.1°C · Low -5.4°C · 17 mm rain
- Shahreẕā in JanuaryIran · 74 kmHigh 7.7°C · Low -4.4°C · 25 mm rain
- Shahr-e Kord in JanuaryIran · 85 kmHigh 2.9°C · Low -8.6°C · 70 mm rain
- Kashan in JanuaryIran · 150 kmHigh 9.2°C · Low 0.0°C · 28 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.