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The South Pacific where Dominical is located has a shorter dry season and experiences more intense afternoon storms than its northern counterpart, the North Pacific.
Dry Season Dominical
From the end of December until April, the dry season weather in Dominical is marked with 75% humidity, and average temperatures of 26°C (79°F) along the coast (average daytime temps of 31°C (88°F) and night time temperatures of 22°C (71°F)).
Rainy Season Dominical
In the lowlands during the rainy season, May through November, 4000mm (157 in.) of rain falls annually and on the Oso Peninsula, more than 5000mm (197 in. - that’s 16.4 feet of rain) of rain falls annually. This region maintains an average humidity of 75% during the dry season, escalating slightly during the rainy season, reaching 90% in July, October and December.
Strangely enough, late June or July typically experiences a "veranillo" (little dry season) with a dramatic decrease in rain but is one of the most humid months.
| 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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