Huaian climate
Huaian (Jiangsu, China) has a humid subtropical climate (Köppen Cfa). The average temperature over the year is 15 °C59 °F, and about 987 mm39 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Huaian climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 541 | −326 | 133 | 281.1 | 26 |
| Feb | 847 | −130 | 439 | 361.4 | 17 |
| Mar | 1558 | 338 | 948 | 401.6 | 6 |
| Apr | 2170 | 949 | 1560 | 532.1 | 0 |
| May | 2780 | 1660 | 2170 | 722.8 | 0 |
| Jun | 3086 | 2069 | 2578 | 1315.1 | 0 |
| Jul | 3189 | 2476 | 2882 | 2329.1 | 0 |
| Aug | 3187 | 2475 | 2781 | 1837.2 | 0 |
| Sep | 2781 | 1865 | 2373 | 903.5 | 0 |
| Oct | 2271 | 1253 | 1762 | 471.8 | 0 |
| Nov | 1458 | 541 | 1049 | 471.9 | 3 |
| Dec | 745 | −229 | 337 | 271.1 | 20 |
| Year | 3189 | −326 | 1559 | 98739 | 73 |
“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 | 73% | 59% | 2.4 | 10:09 |
| Feb | 74% | 63% | 2.8 | 10:56 |
| Mar | 69% | 62% | 4.0 | 11:53 |
| Apr | 67% | 66% | 4.7 | 12:59 |
| May | 67% | 71% | 5.0 | 13:53 |
| Jun | 70% | 74% | 4.7 | 14:22 |
| Jul | 80% | 74% | 4.6 | 14:10 |
| Aug | 80% | 68% | 4.6 | 13:23 |
| Sep | 76% | 63% | 4.1 | 12:20 |
| Oct | 72% | 55% | 3.4 | 11:17 |
| Nov | 74% | 54% | 2.5 | 10:22 |
| Dec | 73% | 51% | 2.2 | 9:56 |
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 Huaian is like
The warmest month is July, with an average high of 31 °C89 °F and a low of 24 °C76 °F. The coldest is January, when highs average 5 °C41 °F and lows −3 °C26 °F. Seasons are strongly marked: the warmest month is on average 27.1 °C48.7 °F warmer than the coldest.
Annual precipitation is moderate at about 987 mm39 in. The wettest three-month stretch is June–August, which brings 55% of the annual total. The wettest month is July (232 mm9.1 in), the driest is December (27 mm1.1 in).
Relative humidity ranges from 67% in May to 80% in August. The clearest skies (lowest average cloud amount, 51%) are typical of December. Average wind speed near the ground ranges from 10 km/h (6 mph) in October to 12 km/h (7 mph) in April. Daylight lasts from about 9.9 hours in December to 14.4 hours in June.
Best time to visit Huaian
Based on these averages, the most comfortable months for sightseeing and outdoor activities are April and May and September and October: average highs of 21 °C70 °F to 27 °C81 °F with 47 mm1.8 in to 90 mm3.5 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of 5 °C41 °F.
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.
Huaian weather by month
- January5 °C41 °F / −3 °C26 °F
- February8 °C47 °F / −1 °C30 °F
- March15 °C58 °F / 3 °C38 °F
- April21 °C70 °F / 9 °C49 °F
- May27 °C80 °F / 16 °C60 °F
- June30 °C86 °F / 20 °C69 °F
- July31 °C89 °F / 24 °C76 °F
- August31 °C87 °F / 24 °C75 °F
- September27 °C81 °F / 18 °C65 °F
- October22 °C71 °F / 12 °C53 °F
- November14 °C58 °F / 5 °C41 °F
- December7 °C45 °F / −2 °C29 °F
What to pack for Huaian
- Winter (December–February) — highs 541 to 8 °C47 °F, lows −326 to −1 °C30 °F, about 30 mm1.2 in of precipitation a month. Pack a warm coat, layers and closed shoes and shoes with good grip, as frost is common.
- Spring (March–May) — highs 1558 to 27 °C80 °F, lows 338 to 16 °C60 °F, about 55 mm2.2 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 3086 to 31 °C89 °F, lows 2069 to 24 °C76 °F, about 182 mm7.2 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
- Autumn (September–November) — highs 1458 to 27 °C81 °F, lows 541 to 18 °C65 °F, about 61 mm2.4 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket.
How Huaian compares
Compared with Yangzhou, about 138 km to the south, Huaian is on average 0.5 °C0.8 °F cooler and receives 12% less precipitation (987 mm39 in vs 1,116 mm44 in). The difference is largest in November (1.1 °C1.9 °F cooler).
Of the 547 places in China covered by World Climates, Huaian is the 293rd warmest by annual mean temperature and the 259th 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: Oklahoma City (United States, Cfa), Wichita (United States, Cfa) and Tulsa (United States, Cfa).
Nearby places
- Suqian 78 km · 15 °C59 °F · 902 mm36 in
- Xinghua 105 km · 15 °C59 °F · 1,057 mm42 in
- Suicheng 106 km · 15 °C59 °F · 902 mm36 in
- Xinyi 108 km · 15 °C58 °F · 859 mm34 in
- Yancheng 109 km · 15 °C59 °F · 1,028 mm40 in
- Lianyungang 114 km · 15 °C58 °F · 918 mm36 in
- Pizhou 127 km · 15 °C58 °F · 859 mm34 in
- Mingguang 133 km · 16 °C60 °F · 1,042 mm41 in
Frequently asked questions
What is the warmest month in Huaian?
July is the warmest month in Huaian, with an average high of 31 °C (89 °F) and an average low of 24 °C (76 °F).
What is the coldest month in Huaian?
January is the coldest month, with an average high of 5 °C (41 °F) and an average low of -3 °C (26 °F).
When does it rain the most in Huaian?
July is the wettest month with about 232 mm (9.1 in) of precipitation; December is the driest with about 27 mm (1.1 in).
What is the best time to visit Huaian?
Judging by long-term averages, the most comfortable months are April and May and September and 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.