Measurements:
°C
°F
CURRENT WEATHER
17:24
Hainan
82°F
W 6 mph
Feels like: 86°F
Precip: 22%
World Resorts China Hainan Weather

7 Day Weather Forecast

10.20
tue
DAY
88°F
W 4 mph
precip
18%
NIGHT
76°F
NW 3 mph
precip
42%
10.21
wed
DAY
90°F
W 7 mph
precip
12%
NIGHT
74°F
NW 3 mph
precip
20%
10.22
thu
DAY
88°F
W 6 mph
precip
14%
NIGHT
74°F
N 2 mph
precip
23%
10.23
fri
DAY
88°F
S 5 mph
precip
15%
NIGHT
74°F
E 3 mph
precip
31%
10.24
sat
DAY
88°F
SE 7 mph
precip
14%
NIGHT
74°F
NE 3 mph
precip
30%
10.25
sun
DAY
88°F
SE 4 mph
precip
13%
NIGHT
76°F
N 3 mph
precip
27%
10.26
mon
DAY
88°F
W 6 mph
precip
22%
NIGHT
74°F
NW 3 mph
precip
32%

Hainan Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Hainan was 29.0°F. The maximum and minimum values were 28.0°F and 30.3°F respectively.

Hainan on the Weather Map

Best Time to Visit Hainan
The most sunny months:
June 12 days
April 12 days
March 11 days
The most warm months:
June 94.5 °F
May 93.2 °F
July 93.0 °F
Warmest sea temperature:
July 90.7 °F
June 90.5 °F
August 90.3 °F
The most cold months:
December 71.7 °F
January 72.3 °F
February 77.5 °F
The most rainy months:
August 14 days
July 14 days
May 14 days
The most windy months:
April 4 mph
March 4 mph
October 4 mph
more details