| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 9.7° | 3.3° | 91.8mm | 11.7 | 44 |
| February | 12.3° | 5.7° | 103.9mm | 12.9 | 50 |
| March | 16.8° | 9.5° | 184.7mm | 16 | 60 |
| April | 22.8° | 15° | 220mm | 15.7 | 70 |
| May | 27.5° | 19.9° | 228.2mm | 14.9 | 68 |
| June | 30° | 23.3° | 355.2mm | 15.7 | 58 |
| July | 34.1° | 26.7° | 162.5mm | 9.3 | 53 |
| August | 33.4° | 26.2° | 128.6mm | 9.3 | 56 |
| September | 30.1° | 22.8° | 56.7mm | 5.1 | 77 |
| October | 24.9° | 17.3° | 47.1mm | 5.8 | 88 |
| November | 18.8° | 11.1° | 91.9mm | 7.8 | 81 |
| December | 12.2° | 5.1° | 50.2mm | 8.4 | 58 |
January in Nanchang averages a daily high of 9.7°C with nights around 3.3°C. Expect roughly 11.7 wet days totalling 91.8mm. Demanding conditions — pack for it and plan indoor options.
February in Nanchang averages a daily high of 12.3°C with nights around 5.7°C. Expect roughly 12.9 wet days totalling 103.9mm. Demanding conditions — pack for it and plan indoor options.
March in Nanchang averages a daily high of 16.8°C with nights around 9.5°C. Expect roughly 16 wet days totalling 184.7mm. Generally workable, with some weather to plan around.
April in Nanchang averages a daily high of 22.8°C with nights around 15°C. Expect roughly 15.7 wet days totalling 220mm. Generally workable, with some weather to plan around.
May in Nanchang averages a daily high of 27.5°C with nights around 19.9°C. Expect roughly 14.9 wet days totalling 228.2mm. Generally workable, with some weather to plan around.
June in Nanchang averages a daily high of 30°C with nights around 23.3°C. Expect roughly 15.7 wet days totalling 355.2mm. Generally workable, with some weather to plan around.
July in Nanchang averages a daily high of 34.1°C with nights around 26.7°C. Expect roughly 9.3 wet days totalling 162.5mm. Demanding conditions — pack for it and plan indoor options.
August in Nanchang averages a daily high of 33.4°C with nights around 26.2°C. Expect roughly 9.3 wet days totalling 128.6mm. Generally workable, with some weather to plan around.
September in Nanchang averages a daily high of 30.1°C with nights around 22.8°C. Expect roughly 5.1 wet days totalling 56.7mm. Comfortable conditions for being outdoors all day.
October in Nanchang averages a daily high of 24.9°C with nights around 17.3°C. Expect roughly 5.8 wet days totalling 47.1mm. Comfortable conditions for being outdoors all day.
November in Nanchang averages a daily high of 18.8°C with nights around 11.1°C. Expect roughly 7.8 wet days totalling 91.9mm. Comfortable conditions for being outdoors all day.
December in Nanchang averages a daily high of 12.2°C with nights around 5.1°C. Expect roughly 8.4 wet days totalling 50.2mm. 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. Nanchang peaks at 88.
Based on 30 years of records, October–November scores highest for comfort in Nanchang, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 34.1°C.
June is the wettest, averaging 355.2mm of rain across roughly 15.7 wet days.
January is the coolest month, with average daily highs around 9.7°C.