| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 5.9° | — | 252.9mm | 23.6 | 25 |
| February | 7° | — | 160.6mm | 18.9 | 28 |
| March | 11.5° | — | 150.9mm | 16.2 | 43 |
| April | 16.8° | — | 140.3mm | 13 | 64 |
| May | 22.1° | — | 110.7mm | 10.5 | 79 |
| June | 25° | — | 146.6mm | 10.2 | 80 |
| July | 29.5° | — | 214.3mm | 14.2 | 62 |
| August | 31.3° | — | 233.8mm | 11.4 | 60 |
| September | 26.7° | — | 217.2mm | 13.2 | 74 |
| October | 21.3° | — | 162.8mm | 13.2 | 74 |
| November | 15.4° | — | 220.5mm | 17.9 | 55 |
| December | 9° | — | 361.6mm | 24.5 | 35 |
January in Himimachi averages a daily high of 5.9°C. Expect roughly 23.6 wet days totalling 252.9mm. A hard month to visit for comfort alone.
February in Himimachi averages a daily high of 7°C. Expect roughly 18.9 wet days totalling 160.6mm. A hard month to visit for comfort alone.
March in Himimachi averages a daily high of 11.5°C. Expect roughly 16.2 wet days totalling 150.9mm. Demanding conditions — pack for it and plan indoor options.
April in Himimachi averages a daily high of 16.8°C. Expect roughly 13 wet days totalling 140.3mm. Generally workable, with some weather to plan around.
May in Himimachi averages a daily high of 22.1°C. Expect roughly 10.5 wet days totalling 110.7mm. Comfortable conditions for being outdoors all day.
June in Himimachi averages a daily high of 25°C. Expect roughly 10.2 wet days totalling 146.6mm. Comfortable conditions for being outdoors all day.
July in Himimachi averages a daily high of 29.5°C. Expect roughly 14.2 wet days totalling 214.3mm. Generally workable, with some weather to plan around.
August in Himimachi averages a daily high of 31.3°C. Expect roughly 11.4 wet days totalling 233.8mm. Generally workable, with some weather to plan around.
September in Himimachi averages a daily high of 26.7°C. Expect roughly 13.2 wet days totalling 217.2mm. Generally workable, with some weather to plan around.
October in Himimachi averages a daily high of 21.3°C. Expect roughly 13.2 wet days totalling 162.8mm. Generally workable, with some weather to plan around.
November in Himimachi averages a daily high of 15.4°C. Expect roughly 17.9 wet days totalling 220.5mm. Generally workable, with some weather to plan around.
December in Himimachi averages a daily high of 9°C. Expect roughly 24.5 wet days totalling 361.6mm. 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. Himimachi peaks at 80.
Based on 30 years of records, May–June scores highest for comfort in Himimachi, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 31.3°C.
December is the wettest, averaging 361.6mm of rain across roughly 24.5 wet days.
January is the coolest month, with average daily highs around 5.9°C.