Climate Chart of Nanjing, China
Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023
For Nanjing, China, the climate data describe 2013–2023.
Climate overview
Temperature
Monthly mean temperatures are highest in August at 28.0 °C and lowest in January at 3.8 °C. These are averages for each month, not daytime highs or lows, so they describe the broad temperature pattern rather than the range visitors may experience from day to day. The unweighted mean of the monthly mean temperatures is 16.4 °C; it summarizes the calendar-month means rather than weighting them by the number of days in each month.
Rain
Mean daily rainfall is highest in July at 8.73 mm/day and lowest in December at 0.88 mm/day. These are daily average amounts, not monthly totals, and they do not show how often rain falls or whether any particular day will be wet. The unweighted mean across the monthly daily-rainfall means is 3.32 mm/day. It provides a broad summary, but does not describe the timing or frequency of individual rain events.
Sunshine
Daily sunshine duration is highest in August at 9.05 hours/day and lowest in January at 5.91 hours/day. These averages can help indicate differences in typical sunshine duration, but sunshine hours are not a measure of day length. The unweighted mean of the monthly daily-sunshine averages is 7.28 hours/day; it summarizes those monthly means without implying that every day receives that duration.
Snow
Mean daily snowfall is highest in January at 2.52 mm/day. The unweighted mean across the monthly daily-snowfall means is 0.45 mm/day; these are daily averages, not monthly snowfall totals.
Best Travel Time Guide for Nanjing, China: Ideal Seasons and Weather Insights
If lower average rainfall is your priority, December is the option indicated by the lowest monthly mean daily rainfall, 0.88 mm/day. That average does not guarantee dry days or show how frequently rain occurs, so it is still sensible to check the forecast and bring rain protection. For planning around the highest average daily rainfall, July has a mean of 8.73 mm/day; consider carrying rain protection for outdoor sightseeing, while remembering that this is not a monthly total or a prediction for a particular day.
Visitors prioritising cooler monthly mean conditions may consider January, the coolest monthly mean at 3.8 °C. This is a monthly average, not a daytime minimum, so pack for variable conditions and check a forecast closer to travel. For outdoor plans guided by average sunshine duration, August has the highest monthly mean at 9.05 hours/day, while January has the lowest at 5.91 hours/day. These figures describe mean daily sunshine, not daylight length or guaranteed sunshine on a visit.
Climate Data Overview for Nanjing, China
Explore the comprehensive climate data for Nanjing, China. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.
| Month | Average: Temperature °C | Rain (mm) / day | Snow (mm) / day | Sunshine (h) / day |
|---|---|---|---|---|
| Jan | 3.8 | 1.35 | 2.52 | 5.91 |
| Feb | 5.7 | 1.63 | 2.17 | 6.06 |
| Mar | 11.3 | 2.15 | 0.19 | 7.24 |
| Apr | 16.3 | 2.78 | 0.00 | 7.95 |
| May | 21.3 | 3.97 | 0.00 | 7.76 |
| Jun | 24.8 | 6.70 | 0.00 | 7.71 |
| Jul | 27.8 | 8.73 | 0.00 | 8.12 |
| Aug | 28.0 | 4.45 | 0.00 | 9.05 |
| Sep | 23.5 | 3.37 | 0.00 | 7.67 |
| Oct | 17.7 | 2.25 | 0.00 | 7.10 |
| Nov | 12.1 | 1.59 | 0.11 | 6.35 |
| Dec | 5.0 | 0.88 | 0.38 | 6.42 |
| Average | 16.4 | 3.32 | 0.45 | 7.28 |
