expatwhy.

Kashan weather by month

Kashan runs from about 5°C in December to 35°C in July, with February the wettest month at 84 mm.

warmest month

July

35°C

coolest month

December

5°C

wettest month

February

84 mm

worst air month

November

23 µg/m³

The whole year, month by month.

Monthly climate normals for Kashan
MonthAvg tempRainSunPM2.5
January9°C13 mm275 h17
February8°C84 mm229 h15
March13°C14 mm303 h17
April20°C10 mm321 h14
May25°C16 mm357 h20
June32°C0 mm375 h18
July35°C0 mm389 h17
August35°C0 mm377 h14
September28°C3 mm330 h19
October21°C1 mm324 h19
November14°C6 mm253 h23
December5°C9 mm265 h20

About 3,798 hours of sun a year. Roughly 15 rainy days a year.

These are long-run climate normals, not a forecast. A given year can sit well outside them. PM2.5 is a global model: near the coast it counts sea salt as fine particulate and reads high against ground stations, sometimes by a factor of two. Use the shape of the year, not the absolute number.

where these numbers come from

  • · Temperature, rainfall and sunshine: ECMWF ERA5 reanalysis climate normals via Open-Meteo (CC BY 4.0), fetched once and stored.
  • · PM2.5: Copernicus CAMS reanalysis, monthly means. Modelled, not station readings; near coasts CAMS counts sea salt as PM2.5 and reads high.

Last reviewed 2026-05-25. Full method, licences and the list of sources we rejected are on the methodology page.