| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 3.8° | -4.5° | 2mm | 1 | 36 |
| February | 6.5° | -1.2° | 11.1mm | 2.5 | 47 |
| March | 13.8° | 3.3° | 100.9mm | 13 | 54 |
| April | 20.4° | 9.5° | 36mm | 5.5 | 89 |
| May | 25.8° | 13.3° | 9.9mm | 3.5 | 93 |
| June | 30.8° | 16.6° | 36.3mm | 4.5 | 76 |
| July | 32.8° | 18.1° | 0mm | 0 | 77 |
| August | 31.4° | 16.9° | 1.4mm | 0.6 | 81 |
| September | 27.2° | 13° | 1.9mm | 1 | 97 |
| October | 19.7° | 6.7° | 2.3mm | 1.5 | 96 |
| November | 11.5° | 1.4° | 0.3mm | 1 | 70 |
| December | 5.1° | -3.3° | 5.6mm | 2 | 40 |
January in Osh averages a daily high of 3.8°C with nights around -4.5°C. Rain is rare — about 1 wet days and 2mm across the month. Demanding conditions — pack for it and plan indoor options.
February in Osh averages a daily high of 6.5°C with nights around -1.2°C. Rain is rare — about 2.5 wet days and 11.1mm across the month. Demanding conditions — pack for it and plan indoor options.
March in Osh averages a daily high of 13.8°C with nights around 3.3°C. Expect roughly 13 wet days totalling 100.9mm. Demanding conditions — pack for it and plan indoor options.
April in Osh averages a daily high of 20.4°C with nights around 9.5°C. Expect roughly 5.5 wet days totalling 36mm. Comfortable conditions for being outdoors all day.
May in Osh averages a daily high of 25.8°C with nights around 13.3°C. Expect roughly 3.5 wet days totalling 9.9mm. Comfortable conditions for being outdoors all day.
June in Osh averages a daily high of 30.8°C with nights around 16.6°C. Expect roughly 4.5 wet days totalling 36.3mm. Comfortable conditions for being outdoors all day.
July in Osh averages a daily high of 32.8°C with nights around 18.1°C. Rain is rare — about 0 wet days and 0mm across the month. Comfortable conditions for being outdoors all day.
August in Osh averages a daily high of 31.4°C with nights around 16.9°C. Rain is rare — about 0.6 wet days and 1.4mm across the month. Comfortable conditions for being outdoors all day.
September in Osh averages a daily high of 27.2°C with nights around 13°C. Rain is rare — about 1 wet days and 1.9mm across the month. Comfortable conditions for being outdoors all day.
October in Osh averages a daily high of 19.7°C with nights around 6.7°C. Rain is rare — about 1.5 wet days and 2.3mm across the month. Comfortable conditions for being outdoors all day.
November in Osh averages a daily high of 11.5°C with nights around 1.4°C. Rain is rare — about 1 wet days and 0.3mm across the month. Generally workable, with some weather to plan around.
December in Osh averages a daily high of 5.1°C with nights around -3.3°C. Rain is rare — about 2 wet days and 5.6mm across the month. 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. Osh peaks at 97.
Based on 30 years of records, April–May scores highest for comfort in Osh, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 32.8°C.
March is the wettest, averaging 100.9mm of rain across roughly 13 wet days.
January is the coolest month, with average daily highs around 3.8°C.