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Warmest sea in China in August

316 coastal locations in China ranked by their typical August sea temperature. Region-wide average in August: 28.2°C. The top of the list is where to find the warmest swimming this month.

Warmest in August

Qiansuo

30.4°C August mean in China

Regional August average

28.2°C

across all 316 coastal locations in China

Vs annual mean

+7.7°C

above the year-round regional average

What the China sea feels like in August

This water temperature is comparable to that of a swimming pool, but it might be higher than most open water swimmers prefer for serious swimming. Make sure to drink plenty of water before and after swimming and don't wear a wetsuit to avoid overheating.

China monthly average 12.1°C to 28.2°C
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  • Warmest month August 28.2°C
  • Coldest month February 12.1°C
  • Annual mean 20.5°C
  • Months above 20°C 6 of 12

Where August fits in the year

August sits inside the regional pattern shown on the left. Pick a different month to see how the ranking shifts.

All twelve China month rankings:

China sea temperature map (live)

The map shows today's latest reading at every China location. The list below is based on the typical August mean, useful for trip planning weeks or months ahead.

Zoom in to see individual locations. Click a pin for water temperatures. View list →
°C -2 0 1 3 5 7 9 11 13 15 17 19 21 24 27 30 35

Top 50 warmest China locations in August

Sorted by the typical August mean built from a decade of daily readings at each location. Click any place for its 30-day chart, monthly profile, and full 10-year history.

# Location August mean
1 Qiansuo 30.4°C
2 Qidu 30.4°C
3 Zhejiang 30.4°C
4 Chengjiang 30.4°C
5 Guanbu 30.4°C
6 Guandu 30.4°C
7 Hangzhou 30.4°C
8 Liyang 30.4°C
9 Qiantang 30.4°C
10 Yuejin 30.4°C
11 Gaibei 30.3°C
12 Shapa 30.2°C
13 Fangcheng 30.2°C
14 Fengshan 30.2°C
15 Houzhai 30.2°C
16 Majiao 30.2°C
17 Beihai 30.2°C
18 Dadunhai 30.2°C
19 Beihai Gang Guangxi Zhuangzuzizhiqu 30.1°C
20 Caotan 30.1°C
21 Cheban 30.1°C
22 Fangchenggang 30.1°C
23 Yingzai 30.1°C
24 Fangcheng Gang Guangxi Zhuangzuzizhiqu 30.1°C
25 Hepu 30.1°C
Show 25 more ▸
26 Tiaolou 30.1°C
27 Zhapu 30.1°C
28 Hainan Island 30.0°C
29 Eman 30.0°C
30 Guangcun 30.0°C
31 Yangpu Gang Hainan Sheng 30.0°C
32 Baimajing 29.9°C
33 Paipu 29.9°C
34 Hai'an Gang Guangdong Sheng 29.8°C
35 Chenghua 29.7°C
36 Hongqi 29.7°C
37 Xiachuan 29.7°C
38 Xinhui 29.7°C
39 Xinxing 29.7°C
40 Shangchuan 29.7°C
41 Xinzao 29.7°C
42 Paracel Islands Hainan 29.6°C
43 Nanshui 29.6°C
44 Chuandao 29.6°C
45 Guanghai 29.6°C
46 Hailingshan Dao Guangdong Sheng 29.6°C
47 Xiachuan Dao Guangdong Sheng 29.6°C
48 Yangjiang 29.5°C
49 Scarborough Shoal Hainan 29.5°C
50 Gaolan Dao Guangdong Sheng 29.5°C

Coldest 10 in China in August

Same data the other way. Helpful if you want to know which China coasts to avoid for swimming in August.

# Location August mean
1 Keren 14.8°C
2 Honghai 21.5°C
3 Jiguan 22.4°C
4 Juexi 22.4°C
5 Shengli 23.0°C
6 Xiaomo 23.0°C
7 Lian 23.6°C
8 Xinying 25.0°C
9 Nanhuangcheng Dao Shandong Sheng 25.0°C
10 Chang Zui Liaoning Sheng 25.0°C

More on this region