| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 7.1° | -1.2° | 40.7mm | 7.1 | 40 |
| February | 9.3° | 0.8° | 38.9mm | 7 | 50 |
| March | 14.3° | 4.7° | 66.2mm | 8.5 | 65 |
| April | 20.3° | 9.8° | 58.8mm | 7.2 | 86 |
| May | 25.9° | 15.4° | 77.4mm | 8.2 | 84 |
| June | 29.1° | 20.6° | 137.8mm | 9.1 | 73 |
| July | 31.6° | 24.5° | 260.6mm | 13 | 56 |
| August | 31.4° | 24.5° | 151.1mm | 10.7 | 61 |
| September | 27.6° | 19.8° | 81mm | 7.1 | 83 |
| October | 22.7° | 13.6° | 56.7mm | 6.5 | 87 |
| November | 16.4° | 7.2° | 52.1mm | 6.2 | 76 |
| December | 9.4° | 0.7° | 32.4mm | 5.8 | 53 |
January in Yancheng averages a daily high of 7.1°C with nights around -1.2°C. Expect roughly 7.1 wet days totalling 40.7mm. Demanding conditions — pack for it and plan indoor options.
February in Yancheng averages a daily high of 9.3°C with nights around 0.8°C. Expect roughly 7 wet days totalling 38.9mm. Demanding conditions — pack for it and plan indoor options.
March in Yancheng averages a daily high of 14.3°C with nights around 4.7°C. Expect roughly 8.5 wet days totalling 66.2mm. Generally workable, with some weather to plan around.
April in Yancheng averages a daily high of 20.3°C with nights around 9.8°C. Expect roughly 7.2 wet days totalling 58.8mm. Comfortable conditions for being outdoors all day.
May in Yancheng averages a daily high of 25.9°C with nights around 15.4°C. Expect roughly 8.2 wet days totalling 77.4mm. Comfortable conditions for being outdoors all day.
June in Yancheng averages a daily high of 29.1°C with nights around 20.6°C. Expect roughly 9.1 wet days totalling 137.8mm. Generally workable, with some weather to plan around.
July in Yancheng averages a daily high of 31.6°C with nights around 24.5°C. Expect roughly 13 wet days totalling 260.6mm. Generally workable, with some weather to plan around.
August in Yancheng averages a daily high of 31.4°C with nights around 24.5°C. Expect roughly 10.7 wet days totalling 151.1mm. Generally workable, with some weather to plan around.
September in Yancheng averages a daily high of 27.6°C with nights around 19.8°C. Expect roughly 7.1 wet days totalling 81mm. Comfortable conditions for being outdoors all day.
October in Yancheng averages a daily high of 22.7°C with nights around 13.6°C. Expect roughly 6.5 wet days totalling 56.7mm. Comfortable conditions for being outdoors all day.
November in Yancheng averages a daily high of 16.4°C with nights around 7.2°C. Expect roughly 6.2 wet days totalling 52.1mm. Comfortable conditions for being outdoors all day.
December in Yancheng averages a daily high of 9.4°C with nights around 0.7°C. Expect roughly 5.8 wet days totalling 32.4mm. 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. Yancheng peaks at 87.
Based on 30 years of records, April–May scores highest for comfort in Yancheng, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 31.6°C.
July is the wettest, averaging 260.6mm of rain across roughly 13 wet days.
January is the coolest month, with average daily highs around 7.1°C.