Climate averages 1991–2020
Kermanshah weather
by month.
See how the year changes. July (tied with August) has the highest average daily maximum; August has the lowest average monthly rainfall.
Pleasant-weather months by our simple rule: MayOctober
Long-term climate patterns, not a forecast for a particular trip.
Across the year Kermanshah averages a daytime high of 21.3°C and a nighttime low of 9.0°C, with about 516 mm of rain on roughly 74 days. July (tied with August) is the warmest month (average high 36.4°C) and January the coolest (6.4°C). March is the wettest month with 92 mm; August is the driest with under 1 mm.
Months with pleasant weather by a simple rule (average high between 18°C and 29°C, average low of at least 5°C and at most 8 rain days): May and October. This looks at temperature and rain only, not humidity, wind, sea temperature or crowds.
The annual picture
A year in Kermanshah
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
Kermanshah climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 6.4°C-2.6°C | -2.6°C | 74 | 10.5 | 10.110 h |
| February | 8.4°C-1.5°C | -1.5°C | 80 | 11.0 | 10.911 h |
| March | 13.4°C2.2°C | 2.2°C | 92 | 11.7 | 11.912 h |
| April | 18.9°C6.9°C | 6.9°C | 77 | 11.0 | 13.013 h |
| May | 24.9°C12.1°C | 12.1°C | 30 | 6.9 | 13.914 h |
| June | 32.0°C17.5°C | 17.5°C | 2.0 | 0.6 | 14.414 h |
| July | 36.4°C21.1°C | 21.1°C | 0.3 | 0.1 | 14.214 h |
| August | 36.4°C21.0°C | 21.0°C | 0.1 | 0.1 | 13.413 h |
| September | 31.4°C16.5°C | 16.5°C | 1.0 | 0.3 | 12.412 h |
| October | 24.1°C10.9°C | 10.9°C | 28 | 4.2 | 11.411 h |
| November | 14.7°C4.1°C | 4.1°C | 68 | 8.1 | 10.410 h |
| December | 9.1°C-0.1°C | -0.1°C | 64 | 9.0 | 9.910 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
Nearby cities
- Eslāmābād-e GharbIran · 54 kmHigh 21.4°C · Low 9.2°C · 532 mm rain a year
- ĪlāmIran · 96 kmHigh 21.4°C · Low 9.5°C · 546 mm rain a year
- KūhdashtIran · 100 kmHigh 22.9°C · Low 8.9°C · 598 mm rain a year
- SanandajIran · 111 kmHigh 19.2°C · Low 6.6°C · 438 mm rain a year
- QorvehIran · 116 kmHigh 17.7°C · Low 4.5°C · 299 mm rain a year
- NahāvandIran · 121 kmHigh 19.3°C · Low 7.9°C · 476 mm rain a year
- HamadānIran · 143 kmHigh 19.4°C · Low 8.3°C · 422 mm rain a year
- KhorramabadIran · 150 kmHigh 23.0°C · Low 9.9°C · 573 mm rain a year
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 limitsWhat do the high and low temperatures mean?
We average the daily maximum and daily minimum for each calendar month over 1991–2020. They are not record extremes, a forecast range or temperatures at a fixed time of day.
How is a rain day counted?
A local calendar day (standard time, UTC+3:30, no daylight saving) with at least 1 mm of total precipitation counts as one rain day. We count these for each year and month, then average across 30 years. The average does not predict which days will be wet.
Where do the numbers come from?
ERA5-Land (temperature) and ERA5 (precipitation) reanalysis from the Copernicus Climate Change Service, read from the Open-Meteo open-data archive. Temperature comes from the 0.1° model cell at 34.30°, 47.10° (4 km from the city centre), adjusted up by 0.3°C for the difference between the city's elevation (1,392 m) and the cell's (1,444 m). Rain comes from the 0.25° cell at 34.25°, 47.00°. These are model estimates, not weather-station readings; coast, hills and city streets can differ.
Does this page show sunshine, humidity or sea temperature?
No. The data used here contain air temperature and precipitation only. Daylight hours are calculated from the city's latitude (sunrise to sunset), not measured sunshine.