| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 11.5° | -0.1° | 15.1mm | 4.1 | 61 |
| February | 15° | 2.6° | 15.2mm | 4.2 | 76 |
| March | 21.6° | 8.5° | 19.4mm | 4.1 | 92 |
| April | 26.9° | 12.7° | 17.5mm | 4.7 | 91 |
| May | 32.9° | 18.3° | 9.5mm | 3.3 | 70 |
| June | 39° | 23.2° | 1.6mm | 0.8 | 50 |
| July | 41.3° | 25.8° | 3.3mm | 0.6 | 42 |
| August | 40° | 23.7° | 1.1mm | 0.3 | 47 |
| September | 35.7° | 19.5° | 1mm | 0.3 | 65 |
| October | 28° | 13.2° | 3.2mm | 1.8 | 92 |
| November | 18.4° | 6° | 14.8mm | 4 | 87 |
| December | 13° | 1.7° | 11.1mm | 3.8 | 70 |
January in Kāshān averages a daily high of 11.5°C with nights around -0.1°C. Expect roughly 4.1 wet days totalling 15.1mm. Generally workable, with some weather to plan around.
February in Kāshān averages a daily high of 15°C with nights around 2.6°C. Expect roughly 4.2 wet days totalling 15.2mm. Comfortable conditions for being outdoors all day.
March in Kāshān averages a daily high of 21.6°C with nights around 8.5°C. Expect roughly 4.1 wet days totalling 19.4mm. Comfortable conditions for being outdoors all day.
April in Kāshān averages a daily high of 26.9°C with nights around 12.7°C. Expect roughly 4.7 wet days totalling 17.5mm. Comfortable conditions for being outdoors all day.
May in Kāshān averages a daily high of 32.9°C with nights around 18.3°C. Expect roughly 3.3 wet days totalling 9.5mm. Generally workable, with some weather to plan around.
June in Kāshān averages a daily high of 39°C with nights around 23.2°C. Rain is rare — about 0.8 wet days and 1.6mm across the month. Demanding conditions — pack for it and plan indoor options.
July in Kāshān averages a daily high of 41.3°C with nights around 25.8°C. Rain is rare — about 0.6 wet days and 3.3mm across the month. Demanding conditions — pack for it and plan indoor options.
August in Kāshān averages a daily high of 40°C with nights around 23.7°C. Rain is rare — about 0.3 wet days and 1.1mm across the month. Demanding conditions — pack for it and plan indoor options.
September in Kāshān averages a daily high of 35.7°C with nights around 19.5°C. Rain is rare — about 0.3 wet days and 1mm across the month. Generally workable, with some weather to plan around.
October in Kāshān averages a daily high of 28°C with nights around 13.2°C. Rain is rare — about 1.8 wet days and 3.2mm across the month. Comfortable conditions for being outdoors all day.
November in Kāshān averages a daily high of 18.4°C with nights around 6°C. Expect roughly 4 wet days totalling 14.8mm. Comfortable conditions for being outdoors all day.
December in Kāshān averages a daily high of 13°C with nights around 1.7°C. Expect roughly 3.8 wet days totalling 11.1mm. Generally workable, with some weather to plan around.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. Kāshān peaks at 92.
Based on 30 years of records, March–April scores highest for comfort in Kāshān, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 41.3°C.
March is the wettest, averaging 19.4mm of rain across roughly 4.1 wet days.
January is the coolest month, with average daily highs around 11.5°C.