| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 8.3° | — | 150.2mm | 19.2 | 33 |
| February | 9.2° | — | 109.5mm | 15.4 | 35 |
| March | 13.3° | — | 120.2mm | 13.6 | 51 |
| April | 18.4° | — | 112.7mm | 11 | 73 |
| May | 23.6° | — | 107.5mm | 10 | 80 |
| June | 26.3° | — | 162.6mm | 11.5 | 77 |
| July | 30.7° | — | 221.6mm | 12.7 | 60 |
| August | 32.2° | — | 141.8mm | 11.3 | 57 |
| September | 27.3° | — | 212.3mm | 12.2 | 74 |
| October | 22.3° | — | 137.7mm | 10.7 | 79 |
| November | 17° | — | 110.8mm | 13.6 | 63 |
| December | 10.9° | — | 149.4mm | 19.2 | 41 |
January in Yonago averages a daily high of 8.3°C. Expect roughly 19.2 wet days totalling 150.2mm. A hard month to visit for comfort alone.
February in Yonago averages a daily high of 9.2°C. Expect roughly 15.4 wet days totalling 109.5mm. Demanding conditions — pack for it and plan indoor options.
March in Yonago averages a daily high of 13.3°C. Expect roughly 13.6 wet days totalling 120.2mm. Demanding conditions — pack for it and plan indoor options.
April in Yonago averages a daily high of 18.4°C. Expect roughly 11 wet days totalling 112.7mm. Generally workable, with some weather to plan around.
May in Yonago averages a daily high of 23.6°C. Expect roughly 10 wet days totalling 107.5mm. Comfortable conditions for being outdoors all day.
June in Yonago averages a daily high of 26.3°C. Expect roughly 11.5 wet days totalling 162.6mm. Comfortable conditions for being outdoors all day.
July in Yonago averages a daily high of 30.7°C. Expect roughly 12.7 wet days totalling 221.6mm. Generally workable, with some weather to plan around.
August in Yonago averages a daily high of 32.2°C. Expect roughly 11.3 wet days totalling 141.8mm. Generally workable, with some weather to plan around.
September in Yonago averages a daily high of 27.3°C. Expect roughly 12.2 wet days totalling 212.3mm. Generally workable, with some weather to plan around.
October in Yonago averages a daily high of 22.3°C. Expect roughly 10.7 wet days totalling 137.7mm. Comfortable conditions for being outdoors all day.
November in Yonago averages a daily high of 17°C. Expect roughly 13.6 wet days totalling 110.8mm. Generally workable, with some weather to plan around.
December in Yonago averages a daily high of 10.9°C. Expect roughly 19.2 wet days totalling 149.4mm. 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. Yonago peaks at 80.
Based on 30 years of records, April–June scores highest for comfort in Yonago, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 32.2°C.
July is the wettest, averaging 221.6mm of rain across roughly 12.7 wet days.
January is the coolest month, with average daily highs around 8.3°C.