| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 9.2° | 2.5° | 52.7mm | 11.8 | 42 |
| February | 11.7° | 4.8° | 55.8mm | 11.7 | 50 |
| March | 16.7° | 8.4° | 96.2mm | 15.6 | 59 |
| April | 22.4° | 13.5° | 139.8mm | 15.7 | 70 |
| May | 26.7° | 17.7° | 201.2mm | 15.4 | 70 |
| June | 29.5° | 21.7° | 249.5mm | 15 | 60 |
| July | 32.8° | 23.9° | 168.1mm | 9.9 | 57 |
| August | 32.9° | 23.3° | 103.9mm | 8.6 | 59 |
| September | 29.7° | 19.8° | 53.7mm | 6.9 | 75 |
| October | 23.3° | 14.8° | 77.9mm | 10.7 | 79 |
| November | 18° | 9.4° | 58.8mm | 8 | 78 |
| December | 11.9° | 4° | 30.6mm | 8.6 | 57 |
January in Tongren averages a daily high of 9.2°C with nights around 2.5°C. Expect roughly 11.8 wet days totalling 52.7mm. Demanding conditions — pack for it and plan indoor options.
February in Tongren averages a daily high of 11.7°C with nights around 4.8°C. Expect roughly 11.7 wet days totalling 55.8mm. Demanding conditions — pack for it and plan indoor options.
March in Tongren averages a daily high of 16.7°C with nights around 8.4°C. Expect roughly 15.6 wet days totalling 96.2mm. Generally workable, with some weather to plan around.
April in Tongren averages a daily high of 22.4°C with nights around 13.5°C. Expect roughly 15.7 wet days totalling 139.8mm. Generally workable, with some weather to plan around.
May in Tongren averages a daily high of 26.7°C with nights around 17.7°C. Expect roughly 15.4 wet days totalling 201.2mm. Generally workable, with some weather to plan around.
June in Tongren averages a daily high of 29.5°C with nights around 21.7°C. Expect roughly 15 wet days totalling 249.5mm. Generally workable, with some weather to plan around.
July in Tongren averages a daily high of 32.8°C with nights around 23.9°C. Expect roughly 9.9 wet days totalling 168.1mm. Generally workable, with some weather to plan around.
August in Tongren averages a daily high of 32.9°C with nights around 23.3°C. Expect roughly 8.6 wet days totalling 103.9mm. Generally workable, with some weather to plan around.
September in Tongren averages a daily high of 29.7°C with nights around 19.8°C. Expect roughly 6.9 wet days totalling 53.7mm. Comfortable conditions for being outdoors all day.
October in Tongren averages a daily high of 23.3°C with nights around 14.8°C. Expect roughly 10.7 wet days totalling 77.9mm. Comfortable conditions for being outdoors all day.
November in Tongren averages a daily high of 18°C with nights around 9.4°C. Expect roughly 8 wet days totalling 58.8mm. Comfortable conditions for being outdoors all day.
December in Tongren averages a daily high of 11.9°C with nights around 4°C. Expect roughly 8.6 wet days totalling 30.6mm. 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. Tongren peaks at 79.
Based on 30 years of records, September–November scores highest for comfort in Tongren, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 32.9°C.
June is the wettest, averaging 249.5mm of rain across roughly 15 wet days.
January is the coolest month, with average daily highs around 9.2°C.