Measurements:
°C
°F
CURRENT WEATHER
02:21
Hainan
66°F
W 2 mph
Feels like: 66°F
Precip: 100%
World Resorts China Hainan Weather

7 Day Weather Forecast

02.01
sun
DAY
72°F
W 8 mph
precip
100%
NIGHT
66°F
W 4 mph
precip
62%
02.02
mon
DAY
74°F
W 8 mph
precip
75%
NIGHT
60°F
NW 4 mph
precip
0%
02.03
tue
DAY
72°F
W 9 mph
precip
0%
NIGHT
62°F
NW 3 mph
precip
0%
02.04
wed
DAY
82°F
W 5 mph
precip
0%
NIGHT
64°F
NW 2 mph
precip
0%
02.05
thu
DAY
84°F
W 4 mph
precip
0%
NIGHT
66°F
NW 3 mph
precip
0%
02.06
fri
DAY
84°F
W 5 mph
precip
0%
NIGHT
70°F
NW 4 mph
precip
0%
02.07
sat
DAY
80°F
W 9 mph
precip
100%
NIGHT
70°F
W 6 mph
precip
68%

Hainan Sea Water Temperature in January, °F

Select Year: 2026 2025 2024

The average sea surface temperature in January 2026 for Hainan was 21.0°F. The maximum and minimum values were 20.0°F and 21.8°F respectively.

Hainan on the Weather Map

Best Time to Visit Hainan
The most sunny months:
June 12 days
May 11 days
April 11 days
The most warm months:
June 94.3 °F
May 93.3 °F
July 93.2 °F
Warmest sea temperature:
July 90.7 °F
June 90.4 °F
August 90.3 °F
The most cold months:
December 71.7 °F
January 72.3 °F
February 77.0 °F
The most rainy months:
September 15 days
August 14 days
July 14 days
The most windy months:
March 4 mph
April 4 mph
October 4 mph
more details