Measurements:
°C
°F
CURRENT WEATHER
18:35
Hainan
94°F
N 3 mph
Feels like: 106°F
Precip: 0%
World Resorts China Hainan Weather

7 Day Weather Forecast

05.14
thu
DAY
100°F
NE 6 mph
precip
0%
NIGHT
78°F
N 6 mph
precip
78%
05.15
fri
DAY
94°F
SE 1 mph
precip
100%
NIGHT
80°F
NW 5 mph
precip
0%
05.16
sat
DAY
88°F
W 2 mph
precip
100%
NIGHT
76°F
NW 5 mph
precip
0%
05.17
sun
DAY
86°F
W 6 mph
precip
100%
NIGHT
76°F
NW 4 mph
precip
0%
05.18
mon
DAY
90°F
W 7 mph
precip
100%
NIGHT
78°F
NW 4 mph
precip
0%
05.19
tue
DAY
82°F
NW 5 mph
precip
100%
NIGHT
76°F
NW 4 mph
precip
0%
05.20
wed
DAY
88°F
NW 7 mph
precip
0%
NIGHT
78°F
NW 5 mph
precip
26%

Hainan Sea Water Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Hainan was 29.0°F. The maximum and minimum values were 27.3°F and 29.8°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 94.3 °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 77.5 °F
The most rainy months:
September 15 days
August 14 days
July 14 days
The most windy months:
April 4 mph
March 4 mph
October 4 mph
more details