| Month | Average Highs | Average Lows | Average Rainfall | Humidity |
| | F | C | F | C | in. | mm | % |
| Jan. |
91 |
33 |
72 |
22 |
6.26 |
159 |
n/a |
| Feb. |
92 |
33 |
71 |
22 |
5.75 |
146 |
n/a |
| Mar. |
92 |
33 |
73 |
23 |
8.07 |
205 |
n/a |
| Apr. |
91 |
33 |
73 |
23 |
11.02 |
280 |
n/a |
| May |
90 |
32 |
73 |
23 |
18.9 |
480 |
n/a |
| Jun. |
89 |
32 |
72 |
22 |
17.48 |
444 |
n/a |
| Jul. |
89 |
32 |
71 |
22 |
18.9 |
480 |
n/a |
| Aug. |
89 |
32 |
71 |
22 |
20.91 |
531 |
n/a |
| Sep. |
90 |
32 |
71 |
22 |
21.97 |
558 |
n/a |
| Oct. |
89 |
32 |
71 |
22 |
27.68 |
703 |
n/a |
| Nov. |
89 |
32 |
71 |
22 |
22.28 |
566 |
n/a |
| Dec. |
90 |
32 |
71 |
22 |
11.57 |
294 |
n/a |
Source: National Weather Services of Costa Rica