Annual mean 25°C · wettest around July · prevailing wind E
Warmest
33.2 °C
Coldest
20.2 °C
Wettest
45%
Windiest
5.4 m/s
Prevailing
E
4.1 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Haikou over the whole year is 25°C. June is the hottest month, with highs of about 33°C; January is the coldest, with lows of about 17°C. The rainy (wet) season in Haikou runs from May to October, peaking in July with a 30% chance of rain on a given day. The dry season is November to April; December is the driest month, at 11%. Winds in Haikou are highest in October, averaging 3.7 m/s (13 km/h), and lightest in August, at 2.4 m/s (9 km/h). The prevailing wind is from the E. The clearest skies in Haikou come in September, when the sky is typically 55% covered; January is the cloudiest month, at 78%.
Month by month Haikou climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
21°C
17°C
20°C
16%
78%
3.5 m/s
73
20
60
February
22°C
18°C
21°C
15%
77%
3.4 m/s
61
30
50
March
26°C
21°C
27°C
16%
71%
3.2 m/s
42
48
23
April
29°C
24°C
31°C
15%
65%
3.2 m/s
21
41
9
May
31°C
26°C
35°C
26%
62%
2.8 m/s
6
25
1
June
33°C
27°C
37°C
30%
57%
2.7 m/s
1
11
0
July
32°C
27°C
37°C
30%
60%
2.7 m/s
1
14
0
August
32°C
27°C
36°C
25%
60%
2.4 m/s
2
17
0
September
31°C
26°C
34°C
28%
55%
2.5 m/s
4
30
0
October
28°C
25°C
29°C
28%
64%
3.7 m/s
29
59
7
November
26°C
22°C
26°C
18%
69%
3.5 m/s
55
51
24
December
22°C
19°C
20°C
11%
75%
3.7 m/s
72
18
63
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Haikou weather by season
Year round, Haikou has days of about 21°C at their warmest in January, its coolest month, and 33°C in June, its warmest; the coolest hours of the day run from 17°C to 27°C through the year, and the average temperature over the year is 25°C around the clock. Rain is most likely around July and least likely around December. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Haikou weather in winterDecember to February
High 22°CLow 18°CRain 14%
Winter in Haikou has typical daily highs of about 22°C and lows of about 18°C, with a 14% chance of rain on a given day.
Haikou weather in springMarch to May
High 29°CLow 23°CRain 19%
Spring in Haikou has typical daily highs of about 29°C and lows of about 23°C, with a 19% chance of rain on a given day.
Haikou weather in summerJune to August
High 32°CLow 27°CRain 28%
Summer in Haikou has typical daily highs of about 32°C and lows of about 27°C, with a 28% chance of rain on a given day.
Haikou weather in autumnSeptember to November
High 28°CLow 24°CRain 25%
Autumn in Haikou has typical daily highs of about 28°C and lows of about 24°C, with a 25% chance of rain on a given day.
When is the rainy season in Haikou?
The rainy (wet) season in Haikou runs from May to October, peaking in July with a 30% chance of rain on a given day. The dry season is November to April; December is the driest month, at 11%.
What time of year is Haikou windiest?
Winds in Haikou are highest in October, averaging 3.7 m/s (13 km/h), and lightest in August, at 2.4 m/s (9 km/h). The prevailing wind is from the E.
What is the average temperature in Haikou year round?
The average temperature in Haikou over the whole year is 25°C. June is the hottest month, with highs of about 33°C; January is the coldest, with lows of about 17°C.