Measurements:
°C
°F
CURRENT WEATHER
10:28
Hainan
80°F
N 3 mph
Feels like: 84°F
Precip: 56%
World Resorts China Hainan Weather

7 Day Weather Forecast

08.20
thu
DAY
82°F
N 3 mph
precip
53%
NIGHT
78°F
E 5 mph
precip
69%
08.21
fri
DAY
78°F
NE 6 mph
precip
34%
NIGHT
80°F
NE 4 mph
precip
33%
08.22
sat
DAY
82°F
E 6 mph
precip
62%
NIGHT
80°F
NE 4 mph
precip
32%
08.23
sun
DAY
88°F
E 4 mph
precip
19%
NIGHT
80°F
NE 3 mph
precip
37%
08.24
mon
DAY
90°F
N 2 mph
precip
21%
NIGHT
78°F
NE 3 mph
precip
51%
08.25
tue
DAY
82°F
E 3 mph
precip
24%
NIGHT
82°F
NE 3 mph
precip
29%
08.26
wed
DAY
88°F
E 6 mph
precip
15%
NIGHT
82°F
N 3 mph
precip
47%

Hainan Sea Water Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Hainan was 30.3°F. The maximum and minimum values were 29.6°F and 30.8°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 94.5 °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:
September 15 days
August 14 days
July 14 days
The most windy months:
April 4 mph
March 4 mph
October 4 mph
more details