Detailed information about the Average, Maximun and Minimum Temperatures and the rainfall in Haikou.
| Average Data |
Jan |
Feb |
Mar |
Apr |
May |
June |
 |
Average High ( F) |
68/71 |
70/74 |
77/80 |
84/87 |
88/92 |
90/93 |
|
| Average High (C) |
20/22 |
21/23 |
25/27 |
29/31 |
31/33 |
32/34 |
|
| Average Low (F) |
57/61 |
59/62 |
64/67 |
70/73 |
74/78 |
76/79 |
|
| Average Low (C) |
14/16 |
15/17 |
18/20 |
21/23 |
23/25 |
24/26 |
|
| Rain (in) |
0.9/1 |
1.3/1.4 |
1.7/1.8 |
3.7/3.8 |
7.0/7.1 |
8.5/8.6 |
|
| Rain (mm) |
20/25 |
35/40 |
40/45 |
95/100 |
180/185 |
215/220 |
| Average Data |
July |
Aug |
Sep |
Oct |
Nov |
Dec |
|
| Average High (F) |
90/94 |
88/92 |
86/89 |
81/85 |
76/80 |
70/74 |
|
| Average High (C) |
32/34 |
31/33 |
30/32 |
27/29 |
24/26 |
21/23 |
|
| Average Low (F) |
76/79 |
75/79 |
74/78 |
71/74 |
66/69 |
60/63 |
|
| Average Low (C) |
24/26 |
24/26 |
23/25 |
21/23 |
19/21 |
15/17 |
|
| Rain (in) |
8.2/8.3 |
8.5/8.6 |
10.7/10.8 |
6.9/7.0 |
3.4/3.5 |
1.6/1.7 |
|
| Rain (mm) |
210/215 |
215/220 |
270/275 |
175/180 |
85/90 |
40/45 |