South Pacific Region
The south Pacific weather region, which includes the Osa Peninsula, the south Pacific coast from Dominical to Sierpe and the highest concentration of biodiversity in the entire country, has a shorter dry season and experiences more intense afternoon storms than its counterpart, the north Pacific.
read more closeFrom the end of December until April, the dry season's average temperatures are 79 degrees along the coast (average daytime of 88 degrees and evening temperatures of 71 degrees). In the lowlands during the wet season (May-Nov.) the southern Pacific weather region receives 157 inches of rain per year while the Osa Peninsula receives more than 197 inches of rain per year.
This region maintains an average humidity of 75 percent during the dry season, escalating slightly during the wet season (May-Nov.), and reaching 90 percent in July, October and December. Strangely enough, late June or July typically experiences a little dry season with a decrease in rainfall, but it is still one of the most humid months.
Corcovado
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 |
Golfito
Month |
Average Highs |
Average Lows |
Average Rainfall |
Humidity |
|||
|---|---|---|---|---|---|---|---|
|
F |
C |
F |
C |
in. |
mm |
% |
Jan. |
91 |
33 |
72 |
22 |
6.26 |
159 |
83 |
Feb. |
92 |
33 |
71 |
22 |
5.75 |
146 |
73 |
Mar. |
92 |
33 |
73 |
23 |
8.07 |
205 |
80 |
Apr. |
91 |
33 |
73 |
23 |
11.02 |
280 |
83 |
May |
90 |
32 |
73 |
23 |
18.9 |
480 |
86 |
Jun. |
89 |
32 |
72 |
22 |
17.48 |
444 |
88 |
Jul. |
89 |
32 |
71 |
22 |
18.9 |
480 |
88 |
Aug. |
89 |
32 |
71 |
22 |
20.91 |
531 |
87 |
Sep. |
90 |
32 |
71 |
22 |
21.97 |
558 |
88 |
Oct. |
89 |
32 |
71 |
22 |
27.68 |
703 |
88 |
Nov. |
89 |
32 |
71 |
22 |
22.28 |
566 |
88 |
Dec. |
90 |
32 |
71 |
22 |
11.57 |
294 |
85 |
Palmar Sur
Month |
Average Highs |
Average Lows |
Average Rainfall |
Humidity |
|||
|---|---|---|---|---|---|---|---|
|
F |
C |
F |
C |
in. |
mm |
% |
Jan. |
91 |
33 |
69 |
21 |
1.97 |
50 |
84 |
Feb. |
91 |
33 |
59 |
15 |
2.09 |
53 |
83 |
Mar. |
93 |
34 |
71 |
22 |
3.82 |
97 |
83 |
Apr. |
91 |
33 |
71 |
22 |
8.86 |
225 |
86 |
May |
89 |
32 |
71 |
22 |
16.61 |
422 |
89 |
Jun. |
89 |
32 |
71 |
22 |
16.06 |
408 |
89 |
Jul. |
89 |
32 |
71 |
22 |
14.57 |
370 |
89 |
Aug. |
87 |
31 |
89 |
32 |
16.3 |
414 |
89 |
Sep. |
87 |
31 |
71 |
22 |
19.49 |
495 |
90 |
Oct. |
87 |
31 |
71 |
22 |
23.5 |
597 |
91 |
Nov. |
87 |
31 |
71 |
22 |
13.78 |
350 |
90 |
Dec. |
89 |
32 |
71 |
22 |
4.17 |
106 |
87 |
Source: National Weather Services of Costa Rica
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