Climate averages 1991–2020
Nanjing weather
in January.
A cold, moderately wet month: the coolest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a cold month in Nanjing: daytime highs average 7.6°C and nights cool to about -1.0°C. By daytime temperature it is the coolest month of the year.
Expect about 55 mm of rain on roughly 8 days, which makes January a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 18 min on an average January day.
The nearest other city in this atlas is Zhenzhou (44 km away). In January its highs average 7.5°C, about as warm as Nanjing, with 52 mm of rain.
Among the 884 cities listed in China, Nanjing ranks joint 418th of 884 for the warmest January highs and joint 694th of 884 for the driest January (rainfall, lowest first). The mean January high of those 884 cities is 5.9°C; Nanjing is 1.8°C warmer than that mean.
From January to February, average highs rise by 2.7°C to 10.3°C, and monthly rainfall rises from 55 mm to 56 mm.
The annual picture
January in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Nanjing climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 7.6°C-1.0°C | -1.0°C | 55 | 8.0 | 10.310 h |
| February | 10.3°C1.0°C | 1.0°C | 56 | 8.5 | 11.011 h |
| March | 15.0°C5.1°C | 5.1°C | 80 | 10.0 | 12.012 h |
| April | 21.0°C10.8°C | 10.8°C | 94 | 9.0 | 12.913 h |
| May | 25.7°C16.3°C | 16.3°C | 121 | 9.8 | 13.814 h |
| June | 28.6°C20.6°C | 20.6°C | 222 | 11.9 | 14.214 h |
| July | 31.4°C24.7°C | 24.7°C | 210 | 15.1 | 14.014 h |
| August | 30.9°C24.4°C | 24.4°C | 174 | 14.3 | 13.313 h |
| September | 27.1°C19.7°C | 19.7°C | 81 | 8.3 | 12.412 h |
| October | 22.3°C13.7°C | 13.7°C | 54 | 6.3 | 11.411 h |
| November | 16.3°C7.3°C | 7.3°C | 53 | 6.8 | 10.611 h |
| December | 9.9°C1.1°C | 1.1°C | 34 | 5.6 | 10.110 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
January in nearby cities
- Zhenzhou in JanuaryChina · 44 kmHigh 7.5°C · Low -0.8°C · 52 mm rain
- Ma’anshan in JanuaryChina · 49 kmHigh 7.8°C · Low -0.3°C · 59 mm rain
- Chuzhou in JanuaryChina · 54 kmHigh 7.5°C · Low -1.3°C · 47 mm rain
- Zhenjiang in JanuaryChina · 66 kmHigh 7.4°C · Low -0.9°C · 53 mm rain
- Yangzhou in JanuaryChina · 72 kmHigh 7.4°C · Low -0.8°C · 48 mm rain
- Xiannü in JanuaryChina · 84 kmHigh 7.5°C · Low -0.9°C · 48 mm rain
- Wuhu in JanuaryChina · 85 kmHigh 8.1°C · Low 0.2°C · 67 mm rain
- Licheng, China in JanuaryChina · 97 kmHigh 8.0°C · Low 0.2°C · 64 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Nanjing) is explained once on the Nanjing year overview and on the Sources, method and limits page.