World Resorts China Hainan Weather

Hainan 7 Days Forecast

15.09
tue
Day
72°F
NW 2 mph
Precip.
33%
Night
73°F
NW 3 mph
Precip.
30%
16.09
wed
Day
82°F
W 3 mph
Precip.
26%
Night
75°F
NW 2 mph
Precip.
39%
17.09
thu
Day
81°F
W 7 mph
Precip.
51%
Night
73°F
NW 3 mph
Precip.
42%
18.09
fri
Day
79°F
W 7 mph
Precip.
61%
Night
73°F
NW 3 mph
Precip.
50%
19.09
sat
Day
82°F
W 7 mph
Precip.
14%
Night
75°F
NW 3 mph
Precip.
42%
20.09
sun
Day
82°F
W 6 mph
Precip.
21%
Night
75°F
N 3 mph
Precip.
28%
21.09
mon
Day
82°F
SW 3 mph
Precip.
6%
Night
77°F
NE 2 mph
Precip.
29%

Sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 83.2°F. The highest and lowest sea temperatures during the month were 85.5°F and 81.7°F.

Air temperature in Hainan, °F

Precipitation total in Hainan, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Hainan

Sunniest months:
June 12 days
April 12 days
March 11 days
Warmest months:
June 90.0 °F
May 88.9 °F
July 88.7 °F
Warmest sea temp:
July 86.6 °F
June 86.4 °F
August 86.3 °F
Coldest months:
December 69.5 °F
January 70.0 °F
February 74.7 °F
Rainiest months:
September 15 days
August 14 days
July 14 days
Windiest months:
April 4.5 mph
March 4.4 mph
October 4.3 mph

Hainan on a weather map

Current weather
19:15
Hainan
+72°F
W 3 mph
Feels like: +77°F
Precip.: 49%
Places in China:
Name
°F
Beidaihe
+68°F
Weihai
+72°F
Hong Kong
+79°F
Guangzhou
+84°F
Dadunhai
+79°F
Dalian
+73°F
Beijing
+81°F
Sanya
+79°F
Taipei
+75°F
Hainan
+72°F
Quingdao
+77°F
Shanghai
+75°F
Shenzhen
+82°F
Yalong Bay
+79°F
Yantai
+72°F
all places
24 Hours Forecast
Hainan
Local time: 19:15
September 15, tuesday
2100
73°F
NW
2 mph
September 16, wednesday
0000
73°F
NW
3 mph
0300
73°F
N
2 mph
0600
72°F
NE
2 mph
0900
75°F
NW
1 mph
1200
82°F
W
3 mph
1500
79°F
SW
4 mph
1800
75°F
SW
3 mph
Units of measurement: °C / °F