Warmest sea in China

316 coastal locations in China ranked by their year-round average sea temperature. The regional average is 20.5°C. The top of the list shows where to find the warmest water in a typical year. The bottom shows the coldest year-round coasts of the region.

Warmest location

Scarborough Shoal

28.9°C annual mean in China

Regional average

20.5°C

across all 316 China coastal locations

Warmest month

August

28.2°C region-wide average

China monthly average 12.1°C to 28.2°C

Warmest month August 28.2°C
Coldest month February 12.1°C
Annual mean 20.5°C
Months above 20°C 6 of 12

Month by month across China

Sea temperatures in China swing from 12.1°C in February to 28.2°C in August on average across every coast we track. That spread of 16°C hides much bigger swings at individual locations.

Want a specific month? Pick one for a dedicated ranking:

China sea temperature map

Today's pin colours show the latest daily reading at every China location we track. Pick any pin for the location's full page.

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 locations in China

The warmest coastal locations across all of China, sorted by year-round average. Click any place for its 30-day chart, monthly profile, and 10-year history.

#	Location	Country	Annual mean	Latest
1	Scarborough Shoal Hainan	China	28.9°C	30.7°C
2	Baoshan	China	28.7°C	30.2°C
3	Paracel Islands Hainan	China	27.8°C	30.4°C
4	Jiadong	China	27.4°C	27.8°C
5	Leluo	China	27.3°C	29.2°C
6	Yinggehai	China	27.3°C	30.6°C
7	Tianya	China	27.3°C	30.2°C
8	Yalong Bay	China	27.3°C	30.2°C
9	Yalong Wan	China	27.3°C	30.2°C
10	Sanya Gang Hainan	China	27.2°C	30.1°C
11	Basuo Hainan Sheng	China	27.2°C	30.5°C
12	Haitangwan	China	27.2°C	30.1°C
13	Sanya	China	27.2°C	30.1°C
14	Dongsha	China	26.8°C	27.9°C
15	Yangpu Gang Hainan Sheng	China	26.7°C	30.6°C
16	Boao	China	26.6°C	29.5°C
17	Baimajing	China	26.4°C	30.2°C
18	Paipu	China	26.4°C	30.2°C
19	Eman	China	26.1°C	29.8°C
20	Guangcun	China	26.1°C	29.8°C
21	Chengjiang	China	25.9°C	29.9°C
22	Guanbu	China	25.9°C	29.9°C
23	Guandu	China	25.9°C	29.9°C
24	Tiaolou	China	25.9°C	29.6°C
25	Caotan	China	25.8°C	30.0°C

Show 25 more ▸

26	Cheban	China	25.8°C	30.0°C
27	Yingzai	China	25.8°C	30.0°C
28	Hainan Island	China	25.8°C	29.5°C
29	Hai'an Gang Guangdong Sheng	China	25.7°C	29.2°C
30	Beihai Gang Guangxi Zhuangzuzizhiqu	China	25.7°C	29.6°C
31	Hepu	China	25.6°C	29.6°C
32	Potou	China	25.5°C	29.6°C
33	Xiashan	China	25.5°C	29.6°C
34	Naozhou Dao Guangdong Province	China	25.5°C	29.3°C
35	Beihai	China	25.4°C	29.6°C
36	Dadunhai	China	25.4°C	29.6°C
37	Haikou Gang Hainan Sheng	China	25.4°C	29.1°C
38	Zhanjiang	China	25.4°C	29.2°C
39	Fangcheng Gang Guangxi Zhuangzuzizhiqu	China	25.3°C	29.3°C
40	Fangchenggang	China	25.3°C	29.3°C
41	Haikou	China	25.3°C	29.1°C
42	Jiazi	China	25.3°C	29.1°C
43	Diancheng Guangdong Province	China	25.3°C	28.8°C
44	Fangcheng	China	25.3°C	29.3°C
45	Fengshan	China	25.3°C	29.3°C
46	Houzhai	China	25.3°C	29.3°C
47	Majiao	China	25.3°C	29.3°C
48	Mulan Tou (Hainan Head) Hainan Sheng	China	25.3°C	28.9°C
49	Bohe	China	25.2°C	28.6°C
50	Hailingshan Dao Guangdong Sheng	China	25.2°C	28.7°C

Coldest 10 in China for contrast

Same data, sorted the other way. Useful if you want to know which China coasts stay coldest year-round.

#	Location	Country	Annual mean
1	Jiguan	China	9.3°C
2	Juexi	China	9.3°C
3	Xiaomo	China	11.1°C
4	Shengli	China	11.8°C
5	Yingkou	China	12.3°C
6	Changchun	China	12.4°C
7	Changtu	China	12.4°C
8	Jinzhou	China	12.5°C
9	Bayuquan Liaoning Sheng	China	12.6°C
10	Liaohe Kou Liaoning	China	12.6°C