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Hainan weather in January

Weather in Hainan: January

Average day temperature: 69.8°F
Average night temperature: 59.4°F
Sea water temperature: 69.6°F
Number of sunny days: 4 days
Day length: 11.0 - 11.3 hours
Number of rainy days: 3 days
Precipitation totals: 1.7 in.

Air temperature in January, °F

Show year:
2025
2024
2023
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
13
26
39
52
65
78
91
104
Day temperature   
Night temperature

The highest day temperature during January of 2025 was 81°F. At the same time the lowest night temperature was 47°F. Day and night temperature averages during January were 69.2°F and 56.4°F.

Sea water temperature in Hainan in January, °F

Show year:
2025
2024
2023
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
61
64
67
70
73
76
79
82

The average sea water temperature in January of 2025 was 67.8°F. The highest and lowest sea temperatures during the month were 69.1°F and 66.6°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
13%
23%
65%

Mostly all days in January are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in January, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.8
3.5
5.3
7.1
8.9
10.6
12.4
1.5
4.7
10.4
7.3
8.0
7.2
4.7
7.2
4.2
2.7
1.1
1.5
4.7
10.4
7.3
8.0
7.2
4.7
7.2
4.2
2.7
1.1
1.8

Precipitation total value in Hainan in January is 1.8 in. Other months of the year show relatively similar values.

Wind speed in January, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.8
1.6
2.4
3.1
3.9
4.7
5.5
3.8
3.8
4.4
3.3
3.4
4.0
4.2
3.8
4.6
4.5
4.2
3.8
3.8
4.4
3.3
3.4
4.0
4.2
3.8
4.6
4.5
4.2
3.8

The average wind speed value in January is 3.8 mph

Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.4
2.8
4.3
5.7
7.1
8.5
10.0
3.9
4.4
3.3
5.6
7.1
7.4
8.3
6.8
7.2
6.7
5.6
3.9
4.4
3.3
5.6
7.1
7.4
8.3
6.8
7.2
6.7
5.6
4.7

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in January is: 4.7.

Best time for vacation in Hainan

Sunniest months:
June 13 days
May 12 days
April 11 days
Warmest months:
June 90.1 °F
July 89.1 °F
May 89.1 °F
Warmest sea temp:
July 86.7 °F
June 86.4 °F
August 86.3 °F
Coldest months:
December 69.3 °F
January 69.8 °F
February 74.5 °F
Rainiest months:
July 15 days
August 15 days
May 15 days
Windiest months:
March 4.4 mph
April 4.4 mph
October 4.2 mph

Hainan on a weather map

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Places in China:
Name
°F
+21°F
+63°F
+63°F
+72°F
+25°F
+63°F
+25°F
+72°F
+68°F
+68°F
+52°F
+41°F
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+72°F
24 Hours Forecast
Hainan
Local time: 08:49
January 31, friday
0900
68°F
NW
6 mph
1200
77°F
NW
8 mph
1500
79°F
W
9 mph
1800
73°F
W
7 mph
2100
64°F
NW
4 mph
February 01, saturday
0000
63°F
NW
4 mph
0300
61°F
NW
4 mph
0600
61°F
N
4 mph
Units of measurement: °C / °F