| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 3° | — | 100.3mm | 19.3 | 16 |
| February | 4.1° | — | 74.8mm | 16.1 | 19 |
| March | 8.9° | — | 75.6mm | 14.6 | 35 |
| April | 16.6° | — | 72.1mm | 12.4 | 64 |
| May | 22.9° | — | 73.8mm | 10.6 | 79 |
| June | 25.9° | — | 103.9mm | 11.5 | 77 |
| July | 29.5° | — | 215.2mm | 16.2 | 60 |
| August | 30.9° | — | 111.2mm | 12 | 60 |
| September | 26.1° | — | 120.5mm | 12.3 | 75 |
| October | 19.7° | — | 120.1mm | 11.5 | 76 |
| November | 12.3° | — | 83.3mm | 14.2 | 47 |
| December | 6.1° | — | 121.6mm | 19.2 | 26 |
January in Aizu-Wakamatsu averages a daily high of 3°C. Expect roughly 19.3 wet days totalling 100.3mm. A hard month to visit for comfort alone.
February in Aizu-Wakamatsu averages a daily high of 4.1°C. Expect roughly 16.1 wet days totalling 74.8mm. A hard month to visit for comfort alone.
March in Aizu-Wakamatsu averages a daily high of 8.9°C. Expect roughly 14.6 wet days totalling 75.6mm. Demanding conditions — pack for it and plan indoor options.
April in Aizu-Wakamatsu averages a daily high of 16.6°C. Expect roughly 12.4 wet days totalling 72.1mm. Generally workable, with some weather to plan around.
May in Aizu-Wakamatsu averages a daily high of 22.9°C. Expect roughly 10.6 wet days totalling 73.8mm. Comfortable conditions for being outdoors all day.
June in Aizu-Wakamatsu averages a daily high of 25.9°C. Expect roughly 11.5 wet days totalling 103.9mm. Comfortable conditions for being outdoors all day.
July in Aizu-Wakamatsu averages a daily high of 29.5°C. Expect roughly 16.2 wet days totalling 215.2mm. Generally workable, with some weather to plan around.
August in Aizu-Wakamatsu averages a daily high of 30.9°C. Expect roughly 12 wet days totalling 111.2mm. Generally workable, with some weather to plan around.
September in Aizu-Wakamatsu averages a daily high of 26.1°C. Expect roughly 12.3 wet days totalling 120.5mm. Comfortable conditions for being outdoors all day.
October in Aizu-Wakamatsu averages a daily high of 19.7°C. Expect roughly 11.5 wet days totalling 120.1mm. Comfortable conditions for being outdoors all day.
November in Aizu-Wakamatsu averages a daily high of 12.3°C. Expect roughly 14.2 wet days totalling 83.3mm. Demanding conditions — pack for it and plan indoor options.
December in Aizu-Wakamatsu averages a daily high of 6.1°C. Expect roughly 19.2 wet days totalling 121.6mm. A hard month to visit for comfort alone.
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. Aizu-Wakamatsu peaks at 79.
Based on 30 years of records, May–June scores highest for comfort in Aizu-Wakamatsu, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 30.9°C.
July is the wettest, averaging 215.2mm of rain across roughly 16.2 wet days.
January is the coolest month, with average daily highs around 3°C.