Jiujiang climate
Jiujiang (Jiangxi, China) has a humid subtropical climate (Köppen Cfa). The average temperature over the year is 18 °C64 °F, and about 1,781 mm70 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Jiujiang climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 948 | 033 | 540 | 742.9 | 14 |
| Feb | 1254 | 337 | 846 | 1044.1 | 7 |
| Mar | 1762 | 846 | 1254 | 1586.2 | 1 |
| Apr | 2373 | 1356 | 1864 | 1967.7 | 0 |
| May | 2780 | 1966 | 2373 | 2268.9 | 0 |
| Jun | 2985 | 2373 | 2679 | 28611 | 0 |
| Jul | 3289 | 2679 | 2984 | 2278.9 | 0 |
| Aug | 3188 | 2578 | 2883 | 1797.0 | 0 |
| Sep | 2883 | 2169 | 2576 | 1154.5 | 0 |
| Oct | 2475 | 1458 | 1966 | 712.8 | 0 |
| Nov | 1864 | 847 | 1355 | 873.4 | 0 |
| Dec | 1152 | 235 | 643 | 582.3 | 10 |
| Year | 3289 | 033 | 1864 | 1,78170 | 32 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 78% | 68% | 2.1 | 10:26 |
| Feb | 79% | 72% | 2.4 | 11:06 |
| Mar | 78% | 72% | 3.2 | 11:55 |
| Apr | 78% | 73% | 4.0 | 12:51 |
| May | 78% | 74% | 4.4 | 13:38 |
| Jun | 82% | 80% | 4.2 | 14:02 |
| Jul | 83% | 69% | 5.3 | 13:52 |
| Aug | 82% | 65% | 5.0 | 13:12 |
| Sep | 80% | 58% | 4.3 | 12:18 |
| Oct | 76% | 56% | 3.5 | 11:24 |
| Nov | 77% | 57% | 2.7 | 10:37 |
| Dec | 75% | 58% | 2.2 | 10:15 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Jiujiang is like
The warmest month is July, with an average high of 32 °C89 °F and a low of 26 °C79 °F. The coldest is January, when highs average 9 °C48 °F and lows 0 °C33 °F. Seasons are strongly marked: the warmest month is on average 24.2 °C43.5 °F warmer than the coldest.
It is wet, with about 1,781 mm70 in of precipitation per year. The wettest three-month stretch is May–July, which brings 41% of the annual total. The wettest month is June (286 mm11 in), the driest is December (58 mm2.3 in).
Relative humidity ranges from 75% in December to 83% in July. The clearest skies (lowest average cloud amount, 56%) are typical of October. Average wind speed near the ground ranges from 8 km/h (5 mph) in June to 9 km/h (6 mph) in February. Daylight lasts from about 10.2 hours in December to 14.0 hours in June.
Best time to visit Jiujiang
Based on these averages, the most comfortable months for sightseeing and outdoor activities are October: average highs of 24 °C75 °F to 24 °C75 °F with 71 mm2.8 in to 71 mm2.8 in of precipitation per month.
The most challenging month is June, which is very wet (286 mm11 in) and humid (82% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Jiujiang
- Winter (December–February) — highs 948 to 12 °C54 °F, lows 033 to 3 °C37 °F, about 79 mm3.1 in of precipitation a month. Pack a warm coat, layers and closed shoes.
- Spring (March–May) — highs 1762 to 27 °C80 °F, lows 846 to 19 °C66 °F, about 193 mm7.6 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an umbrella or light rain jacket.
- Summer (June–August) — highs 2985 to 32 °C89 °F, lows 2373 to 26 °C79 °F, about 231 mm9.1 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and a good rain jacket or umbrella and quick-drying shoes.
- Autumn (September–November) — highs 1864 to 28 °C83 °F, lows 847 to 21 °C69 °F, about 91 mm3.6 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an umbrella or light rain jacket.
How Jiujiang compares
Compared with Nanchang, about 114 km to the south, Jiujiang is on average 0.5 °C1 °F cooler and receives a similar amount of precipitation. The difference is largest in February (1 °C1.8 °F cooler).
Of the 547 places in China covered by World Climates, Jiujiang is the 161st warmest by annual mean temperature and the 32nd wettest by annual precipitation. See all of them on the China climate page.
Places in other countries with the most similar temperature and rainfall pattern: Columbia (United States, Cfa), Fayetteville (United States, Cfa) and Tuscaloosa (United States, Cfa).
Nearby places
- Wuxue 46 km · 17 °C63 °F · 1,683 mm66 in
- Pengze 57 km · 18 °C64 °F · 1,746 mm69 in
- Daye 110 km · 18 °C64 °F · 1,577 mm62 in
- Huangshi 110 km · 18 °C64 °F · 1,577 mm62 in
- Nanchang 114 km · 18 °C65 °F · 1,697 mm67 in
- Jingdezhen 125 km · 18 °C64 °F · 1,927 mm76 in
- Ezhou 132 km · 18 °C64 °F · 1,445 mm57 in
- Anqing 135 km · 17 °C63 °F · 1,671 mm66 in
Frequently asked questions
What is the warmest month in Jiujiang?
July is the warmest month in Jiujiang, with an average high of 32 °C (89 °F) and an average low of 26 °C (79 °F).
What is the coldest month in Jiujiang?
January is the coldest month, with an average high of 9 °C (48 °F) and an average low of 0 °C (33 °F).
When does it rain the most in Jiujiang?
June is the wettest month with about 286 mm (11.3 in) of precipitation; December is the driest with about 58 mm (2.3 in).
What is the best time to visit Jiujiang?
Judging by long-term averages, the most comfortable months are October.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.