| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 6.4° | -5.2° | 33.9mm | 7.5 | 31 |
| February | 9.8° | -2.8° | 30mm | 6.5 | 47 |
| March | 16.1° | 2.8° | 46.3mm | 6.8 | 74 |
| April | 20.6° | 6.8° | 56mm | 7.9 | 84 |
| May | 26.6° | 11.3° | 22.1mm | 5.3 | 89 |
| June | 33.4° | 16.4° | 8.8mm | 1.3 | 72 |
| July | 36.2° | 20° | 1.4mm | 1.1 | 61 |
| August | 35.1° | 18.5° | 0.8mm | 0.5 | 67 |
| September | 31.3° | 13.7° | 3.1mm | 0.5 | 82 |
| October | 24° | 7.8° | 11.7mm | 3 | 94 |
| November | 14.1° | 1.2° | 29.2mm | 6.3 | 67 |
| December | 8.7° | -4.1° | 36.1mm | 6.6 | 41 |
January in Khomeyn averages a daily high of 6.4°C with nights around -5.2°C. Expect roughly 7.5 wet days totalling 33.9mm. A hard month to visit for comfort alone.
February in Khomeyn averages a daily high of 9.8°C with nights around -2.8°C. Expect roughly 6.5 wet days totalling 30mm. Demanding conditions — pack for it and plan indoor options.
March in Khomeyn averages a daily high of 16.1°C with nights around 2.8°C. Expect roughly 6.8 wet days totalling 46.3mm. Generally workable, with some weather to plan around.
April in Khomeyn averages a daily high of 20.6°C with nights around 6.8°C. Expect roughly 7.9 wet days totalling 56mm. Comfortable conditions for being outdoors all day.
May in Khomeyn averages a daily high of 26.6°C with nights around 11.3°C. Expect roughly 5.3 wet days totalling 22.1mm. Comfortable conditions for being outdoors all day.
June in Khomeyn averages a daily high of 33.4°C with nights around 16.4°C. Rain is rare — about 1.3 wet days and 8.8mm across the month. Generally workable, with some weather to plan around.
July in Khomeyn averages a daily high of 36.2°C with nights around 20°C. Rain is rare — about 1.1 wet days and 1.4mm across the month. Generally workable, with some weather to plan around.
August in Khomeyn averages a daily high of 35.1°C with nights around 18.5°C. Rain is rare — about 0.5 wet days and 0.8mm across the month. Generally workable, with some weather to plan around.
September in Khomeyn averages a daily high of 31.3°C with nights around 13.7°C. Rain is rare — about 0.5 wet days and 3.1mm across the month. Comfortable conditions for being outdoors all day.
October in Khomeyn averages a daily high of 24°C with nights around 7.8°C. Expect roughly 3 wet days totalling 11.7mm. Comfortable conditions for being outdoors all day.
November in Khomeyn averages a daily high of 14.1°C with nights around 1.2°C. Expect roughly 6.3 wet days totalling 29.2mm. Generally workable, with some weather to plan around.
December in Khomeyn averages a daily high of 8.7°C with nights around -4.1°C. Expect roughly 6.6 wet days totalling 36.1mm. Demanding conditions — pack for it and plan indoor options.
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. Khomeyn peaks at 94.
Based on 30 years of records, May scores highest for comfort in Khomeyn, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 36.2°C.
April is the wettest, averaging 56mm of rain across roughly 7.9 wet days.
January is the coolest month, with average daily highs around 6.4°C.