| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 15.1° | 7° | 65.9mm | 9.5 | 65 |
| February | 17.3° | 8.9° | 100.8mm | 12 | 67 |
| March | 20.7° | 11.8° | 170.8mm | 15.4 | 70 |
| April | 25.4° | 16° | 196.2mm | 15.3 | 70 |
| May | 29° | 19.9° | 264.5mm | 16.1 | 62 |
| June | 31.5° | 23.1° | 339.6mm | 16.6 | 52 |
| July | 35.1° | 25.2° | 126.1mm | 10.8 | 46 |
| August | 34.6° | 25° | 148.8mm | 13.3 | 43 |
| September | 32° | 22.8° | 78.6mm | 8.4 | 63 |
| October | 27.5° | 18.4° | 55.4mm | 6.5 | 85 |
| November | 22.1° | 13.3° | 81.7mm | 7.4 | 85 |
| December | 16.6° | 7.9° | 42.9mm | 7.4 | 74 |
January in Jian’ou averages a daily high of 15.1°C with nights around 7°C. Expect roughly 9.5 wet days totalling 65.9mm. Generally workable, with some weather to plan around.
February in Jian’ou averages a daily high of 17.3°C with nights around 8.9°C. Expect roughly 12 wet days totalling 100.8mm. Generally workable, with some weather to plan around.
March in Jian’ou averages a daily high of 20.7°C with nights around 11.8°C. Expect roughly 15.4 wet days totalling 170.8mm. Generally workable, with some weather to plan around.
April in Jian’ou averages a daily high of 25.4°C with nights around 16°C. Expect roughly 15.3 wet days totalling 196.2mm. Generally workable, with some weather to plan around.
May in Jian’ou averages a daily high of 29°C with nights around 19.9°C. Expect roughly 16.1 wet days totalling 264.5mm. Generally workable, with some weather to plan around.
June in Jian’ou averages a daily high of 31.5°C with nights around 23.1°C. Expect roughly 16.6 wet days totalling 339.6mm. Demanding conditions — pack for it and plan indoor options.
July in Jian’ou averages a daily high of 35.1°C with nights around 25.2°C. Expect roughly 10.8 wet days totalling 126.1mm. Demanding conditions — pack for it and plan indoor options.
August in Jian’ou averages a daily high of 34.6°C with nights around 25°C. Expect roughly 13.3 wet days totalling 148.8mm. Demanding conditions — pack for it and plan indoor options.
September in Jian’ou averages a daily high of 32°C with nights around 22.8°C. Expect roughly 8.4 wet days totalling 78.6mm. Generally workable, with some weather to plan around.
October in Jian’ou averages a daily high of 27.5°C with nights around 18.4°C. Expect roughly 6.5 wet days totalling 55.4mm. Comfortable conditions for being outdoors all day.
November in Jian’ou averages a daily high of 22.1°C with nights around 13.3°C. Expect roughly 7.4 wet days totalling 81.7mm. Comfortable conditions for being outdoors all day.
December in Jian’ou averages a daily high of 16.6°C with nights around 7.9°C. Expect roughly 7.4 wet days totalling 42.9mm. 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. Jian’ou peaks at 85.
Based on 30 years of records, October–November scores highest for comfort in Jian’ou, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 35.1°C.
June is the wettest, averaging 339.6mm of rain across roughly 16.6 wet days.
January is the coolest month, with average daily highs around 15.1°C.