| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | -1.5° | -11.3° | 7.9mm | 2.5 | 25 |
| February | 2.3° | -7.7° | 14.5mm | 3.4 | 24 |
| March | 7.9° | -1.9° | 27.1mm | 4.4 | 47 |
| April | 15.3° | 4.8° | 57.6mm | 6.7 | 72 |
| May | 21.1° | 10.9° | 85.6mm | 8.6 | 83 |
| June | 24.9° | 16.6° | 123.2mm | 10.3 | 79 |
| July | 27.4° | 20.8° | 289.4mm | 12.7 | 73 |
| August | 28.3° | 20.6° | 248.6mm | 11.7 | 71 |
| September | 24.9° | 14.8° | 108.7mm | 6.8 | 86 |
| October | 17.8° | 6.7° | 58.2mm | 6.7 | 80 |
| November | 8.3° | -1.2° | 38.3mm | 5.2 | 47 |
| December | -0.1° | -9.2° | 13.9mm | 3.6 | 23 |
January in Langtoucun averages a daily high of -1.5°C with nights around -11.3°C. Rain is rare — about 2.5 wet days and 7.9mm across the month. A hard month to visit for comfort alone.
February in Langtoucun averages a daily high of 2.3°C with nights around -7.7°C. Expect roughly 3.4 wet days totalling 14.5mm. A hard month to visit for comfort alone.
March in Langtoucun averages a daily high of 7.9°C with nights around -1.9°C. Expect roughly 4.4 wet days totalling 27.1mm. Demanding conditions — pack for it and plan indoor options.
April in Langtoucun averages a daily high of 15.3°C with nights around 4.8°C. Expect roughly 6.7 wet days totalling 57.6mm. Generally workable, with some weather to plan around.
May in Langtoucun averages a daily high of 21.1°C with nights around 10.9°C. Expect roughly 8.6 wet days totalling 85.6mm. Comfortable conditions for being outdoors all day.
June in Langtoucun averages a daily high of 24.9°C with nights around 16.6°C. Expect roughly 10.3 wet days totalling 123.2mm. Comfortable conditions for being outdoors all day.
July in Langtoucun averages a daily high of 27.4°C with nights around 20.8°C. Expect roughly 12.7 wet days totalling 289.4mm. Generally workable, with some weather to plan around.
August in Langtoucun averages a daily high of 28.3°C with nights around 20.6°C. Expect roughly 11.7 wet days totalling 248.6mm. Generally workable, with some weather to plan around.
September in Langtoucun averages a daily high of 24.9°C with nights around 14.8°C. Expect roughly 6.8 wet days totalling 108.7mm. Comfortable conditions for being outdoors all day.
October in Langtoucun averages a daily high of 17.8°C with nights around 6.7°C. Expect roughly 6.7 wet days totalling 58.2mm. Comfortable conditions for being outdoors all day.
November in Langtoucun averages a daily high of 8.3°C with nights around -1.2°C. Expect roughly 5.2 wet days totalling 38.3mm. Demanding conditions — pack for it and plan indoor options.
December in Langtoucun averages a daily high of -0.1°C with nights around -9.2°C. Expect roughly 3.6 wet days totalling 13.9mm. 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. Langtoucun peaks at 86.
Based on 30 years of records, May–June scores highest for comfort in Langtoucun, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 28.3°C.
July is the wettest, averaging 289.4mm of rain across roughly 12.7 wet days.
January is the coolest month, with average daily highs around -1.5°C.