Rugao climate
Rugao (Jiangsu, China) has a humid subtropical climate (Köppen Cfa). The average temperature over the year is 15 °C60 °F, and about 1,113 mm44 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Rugao climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 744 | −228 | 236 | 451.8 | 22 |
| Feb | 949 | −131 | 440 | 512.0 | 16 |
| Mar | 1458 | 337 | 947 | 572.3 | 6 |
| Apr | 2169 | 847 | 1458 | 722.8 | 0 |
| May | 2679 | 1457 | 2068 | 803.1 | 0 |
| Jun | 2985 | 1966 | 2475 | 1596.3 | 0 |
| Jul | 3188 | 2475 | 2781 | 2258.8 | 0 |
| Aug | 3187 | 2474 | 2781 | 1706.7 | 0 |
| Sep | 2781 | 1966 | 2373 | 1014.0 | 0 |
| Oct | 2272 | 1254 | 1763 | 572.3 | 0 |
| Nov | 1661 | 643 | 1152 | 602.4 | 2 |
| Dec | 948 | 031 | 440 | 361.4 | 16 |
| Year | 3188 | −228 | 1560 | 1,11344 | 63 |
“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% | 63% | 2.3 | 10:14 |
| Feb | 79% | 66% | 2.7 | 10:59 |
| Mar | 76% | 64% | 3.8 | 11:54 |
| Apr | 74% | 67% | 4.6 | 12:56 |
| May | 72% | 72% | 4.8 | 13:48 |
| Jun | 76% | 77% | 4.4 | 14:16 |
| Jul | 84% | 74% | 4.6 | 14:05 |
| Aug | 84% | 66% | 4.7 | 13:20 |
| Sep | 81% | 65% | 4.0 | 12:19 |
| Oct | 77% | 59% | 3.3 | 11:19 |
| Nov | 77% | 57% | 2.5 | 10:27 |
| Dec | 76% | 55% | 2.2 | 10:02 |
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 Rugao is like
The warmest month is July, with an average high of 31 °C88 °F and a low of 24 °C75 °F. The coldest is January, when highs average 7 °C44 °F and lows −2 °C28 °F. Seasons are strongly marked: the warmest month is on average 25.2 °C45.3 °F warmer than the coldest.
It is wet, with about 1,113 mm44 in of precipitation per year. The wettest three-month stretch is June–August, which brings 50% of the annual total. The wettest month is July (225 mm8.8 in), the driest is December (36 mm1.4 in).
Relative humidity ranges from 72% in May to 84% in July. The clearest skies (lowest average cloud amount, 55%) are typical of December. Average wind speed near the ground ranges from 9 km/h (5 mph) in October to 10 km/h (6 mph) in April. Daylight lasts from about 10.0 hours in December to 14.3 hours in June.
Best time to visit Rugao
Based on these averages, the most comfortable months for sightseeing and outdoor activities are April and May and October: average highs of 21 °C69 °F to 26 °C79 °F with 57 mm2.3 in to 80 mm3.1 in of precipitation per month.
The most challenging month is July, which is hot, with average highs of 31 °C88 °F, very wet (225 mm8.8 in) and humid (84% 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 Rugao
- Winter (December–February) — highs 744 to 9 °C49 °F, lows −228 to 0 °C31 °F, about 44 mm1.7 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 1458 to 26 °C79 °F, lows 337 to 14 °C57 °F, about 70 mm2.7 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 2985 to 31 °C88 °F, lows 1966 to 24 °C75 °F, about 184 mm7.3 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 1661 to 27 °C81 °F, lows 643 to 19 °C66 °F, about 73 mm2.9 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket.
How Rugao compares
Compared with Nantong, about 47 km to the southeast, Rugao is on average 0.5 °C0.9 °F cooler and receives a similar amount of precipitation. The difference is largest in February (0.6 °C1 °F cooler).
Of the 547 places in China covered by World Climates, Rugao is the 284th warmest by annual mean temperature and the 219th 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: Pohang (South Korea, Cfa), Tulsa (United States, Cfa) and Raleigh (United States, Cfa).
Nearby places
- Nantong 47 km · 16 °C61 °F · 1,146 mm45 in
- Zhangjiagang 56 km · 16 °C61 °F · 1,146 mm45 in
- Jiangyin 59 km · 16 °C61 °F · 1,145 mm45 in
- Dongtai 59 km · 15 °C59 °F · 1,057 mm42 in
- Taizhou 64 km · 16 °C60 °F · 1,101 mm43 in
- Changzhou 89 km · 16 °C61 °F · 1,145 mm45 in
- Wuxi 93 km · 17 °C62 °F · 1,220 mm48 in
- Xinghua 94 km · 15 °C59 °F · 1,057 mm42 in
Frequently asked questions
What is the warmest month in Rugao?
July is the warmest month in Rugao, with an average high of 31 °C (88 °F) and an average low of 24 °C (75 °F).
What is the coldest month in Rugao?
January is the coldest month, with an average high of 7 °C (44 °F) and an average low of -2 °C (28 °F).
When does it rain the most in Rugao?
July is the wettest month with about 225 mm (8.8 in) of precipitation; December is the driest with about 36 mm (1.4 in).
What is the best time to visit Rugao?
Judging by long-term averages, the most comfortable months are April and May 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.