| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 9.9° | — | 43.7mm | 6.4 | 55 |
| February | 10.7° | — | 67.9mm | 8.3 | 54 |
| March | 14.6° | — | 100.2mm | 10.3 | 62 |
| April | 19.8° | — | 102.3mm | 9.8 | 80 |
| May | 24.4° | — | 148mm | 9 | 82 |
| June | 27.2° | — | 181mm | 12.1 | 75 |
| July | 31.3° | — | 191mm | 10.7 | 61 |
| August | 32.8° | — | 128.2mm | 7.8 | 61 |
| September | 29.2° | — | 166.5mm | 10.2 | 71 |
| October | 23.6° | — | 162.7mm | 9.9 | 80 |
| November | 18.1° | — | 99.9mm | 8 | 78 |
| December | 12.5° | — | 71.4mm | 8 | 60 |
January in Wakayama averages a daily high of 9.9°C. Expect roughly 6.4 wet days totalling 43.7mm. Generally workable, with some weather to plan around.
February in Wakayama averages a daily high of 10.7°C. Expect roughly 8.3 wet days totalling 67.9mm. Demanding conditions — pack for it and plan indoor options.
March in Wakayama averages a daily high of 14.6°C. Expect roughly 10.3 wet days totalling 100.2mm. Generally workable, with some weather to plan around.
April in Wakayama averages a daily high of 19.8°C. Expect roughly 9.8 wet days totalling 102.3mm. Comfortable conditions for being outdoors all day.
May in Wakayama averages a daily high of 24.4°C. Expect roughly 9 wet days totalling 148mm. Comfortable conditions for being outdoors all day.
June in Wakayama averages a daily high of 27.2°C. Expect roughly 12.1 wet days totalling 181mm. Comfortable conditions for being outdoors all day.
July in Wakayama averages a daily high of 31.3°C. Expect roughly 10.7 wet days totalling 191mm. Generally workable, with some weather to plan around.
August in Wakayama averages a daily high of 32.8°C. Expect roughly 7.8 wet days totalling 128.2mm. Generally workable, with some weather to plan around.
September in Wakayama averages a daily high of 29.2°C. Expect roughly 10.2 wet days totalling 166.5mm. Generally workable, with some weather to plan around.
October in Wakayama averages a daily high of 23.6°C. Expect roughly 9.9 wet days totalling 162.7mm. Comfortable conditions for being outdoors all day.
November in Wakayama averages a daily high of 18.1°C. Expect roughly 8 wet days totalling 99.9mm. Comfortable conditions for being outdoors all day.
December in Wakayama averages a daily high of 12.5°C. Expect roughly 8 wet days totalling 71.4mm. 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. Wakayama peaks at 82.
Based on 30 years of records, April–June scores highest for comfort in Wakayama, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 32.8°C.
July is the wettest, averaging 191mm of rain across roughly 10.7 wet days.
January is the coolest month, with average daily highs around 9.9°C.