Historical weather in Nanjing, China
Nanjing weather history for 2023-2025, with daily temperatures, precipitation, monthly summaries, and records from Open-Meteo archive data.
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Weather summary
Across 2023-2025, Nanjing averaged 21.7 C for daily highs and 13.5 C for daily lows across 1096 daily observations.
The warmest month was July 2025, with an average high of 35.0 C, while January 2023 had the lowest average low at -0.7 C.
The wettest month was July 2023, totaling 328.8 mm of precipitation.
The hottest day reached 41.1 C on July 6, 2025; the coldest night fell to -7.9 C on December 22, 2023.
Monthly summary table
| Year | Month | Avg low C | Avg high C | Rain and snow mm | Days |
|---|---|---|---|---|---|
| 2023 | January | -0.7 | 10.0 | 38.0 | 31 |
| 2023 | February | 2.0 | 9.9 | 66.6 | 28 |
| 2023 | March | 7.4 | 17.8 | 68.5 | 31 |
| 2023 | April | 12.4 | 22.3 | 90.1 | 30 |
| 2023 | May | 17.0 | 26.1 | 158.5 | 31 |
| 2023 | June | 21.2 | 29.0 | 185.6 | 30 |
| 2023 | July | 25.7 | 31.4 | 328.8 | 31 |
| 2023 | August | 24.5 | 31.1 | 123.7 | 31 |
| 2023 | September | 21.3 | 27.8 | 131.7 | 30 |
| 2023 | October | 14.6 | 23.4 | 25.7 | 31 |
| 2023 | November | 7.5 | 17.1 | 35.3 | 30 |
| 2023 | December | 0.8 | 9.4 | 40.4 | 31 |
| 2024 | January | -0.4 | 8.6 | 52.7 | 31 |
| 2024 | February | 0.6 | 8.6 | 99.6 | 29 |
| 2024 | March | 6.5 | 16.5 | 101.0 | 31 |
| 2024 | April | 13.4 | 21.6 | 142.5 | 30 |
| 2024 | May | 16.3 | 25.8 | 92.2 | 31 |
| 2024 | June | 21.6 | 29.1 | 281.0 | 30 |
| 2024 | July | 26.5 | 32.4 | 239.1 | 31 |
| 2024 | August | 26.7 | 34.2 | 162.3 | 31 |
| 2024 | September | 23.2 | 30.1 | 230.9 | 30 |
| 2024 | October | 14.1 | 21.3 | 104.8 | 31 |
| 2024 | November | 9.8 | 17.2 | 15.2 | 30 |
| 2024 | December | 1.5 | 9.6 | 11.7 | 31 |
| 2025 | January | 1.0 | 10.1 | 10.0 | 31 |
| 2025 | February | 1.6 | 10.4 | 11.2 | 28 |
| 2025 | March | 7.5 | 17.2 | 48.8 | 31 |
| 2025 | April | 14.0 | 26.3 | 15.3 | 30 |
| 2025 | May | 18.1 | 27.6 | 135.6 | 31 |
| 2025 | June | 22.1 | 29.0 | 261.3 | 30 |
| 2025 | July | 26.7 | 35.0 | 91.7 | 31 |
| 2025 | August | 26.7 | 33.9 | 147.9 | 31 |
| 2025 | September | 22.9 | 29.1 | 294.7 | 30 |
| 2025 | October | 17.0 | 23.0 | 68.2 | 31 |
| 2025 | November | 8.2 | 16.9 | 20.4 | 30 |
| 2025 | December | 3.7 | 12.0 | 9.3 | 31 |
Daily weather records
| Record | Date | Value |
|---|---|---|
| Hottest day | July 6, 2025 | 41.1 C |
| Coldest night | December 22, 2023 | -7.9 C |
| Wettest day | June 29, 2024 | 100.8 mm |
Related pages
Weather data source: Open-Meteo Archive API. City metadata source: GeoNames cities15000.