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Town in Puntarenas, Costa Rica

Jacó weather by month and the best time to visit

Updated October 2026Sources
Dec–AprBest time to visit

When to go to Jacó

Dec–Apr is dry and sunny with steady surf. May–Nov is rainy, with afternoon storms and fewer visitors; Sep–Oct is wettest.

Jacó weather by month

Average daily high, rainfall and conditions.

PleasantHotRainyCool or coldBest months
25°30°35°JFMAMJJASOND
Average highAverage lowRainfall

Monthly averages

MonthHighLowRainHumidityConditions
January30°C86°F26°C78°F51 mm75%Pleasant
February31°C88°F26°C79°F29 mm69%Pleasant
March32°C90°F27°C80°F39 mm66%Pleasant
April32°C89°F27°C80°F108 mm72%Pleasant
May30°C86°F26°C80°F277 mm82%Rainy
June29°C84°F26°C79°F265 mm86%Rainy
July29°C85°F26°C79°F281 mm86%Rainy
August29°C84°F26°C79°F268 mm86%Rainy
September29°C83°F26°C79°F294 mm87%Rainy
October28°C83°F26°C78°F337 mm89%Very wet
November28°C83°F25°C78°F235 mm87%Rainy
December29°C85°F25°C78°F104 mm82%Pleasant

Best months across Costa Rica

PlaceBest monthsWarmest month
La FortunaDec–AprApr (32°C)
San JoséDec–AprApr (27°C)
TamarindoDec–AprApr (36°C)
Manuel AntonioDec–AprMar (32°C)
Santa TeresaDec–AprMar (31°C)
MonteverdeDec–AprApr (35°C)
Puerto ViejoFeb–Apr, Sep–OctApr (29°C)
NosaraDec–AprMar (34°C)
TortugueroFeb–Apr, Sep–OctApr (30°C)
JacóDec–AprMar (32°C)
UvitaDec–AprMar (32°C)
Playas del CocoDec–AprApr (36°C)
SámaraDec–AprMar (34°C)

Quick answers

What is the best month to visit Jacó?

Dec–Apr. Dec–Apr is dry and sunny with steady surf. May–Nov is rainy, with afternoon storms and fewer visitors; Sep–Oct is wettest.

When is the rainy season in Jacó?

Rain peaks in October with about 337 mm. Months with 150 mm or more: May–Nov.

What is the hottest month in Jacó?

March, with average highs of 32°C (90°F).

How cold does Jacó get?

The coolest nights are in December, averaging 25°C (78°F).

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Sources

Climate averages are modelled from NASA POWER (MERRA-2) for 2001–2020 at about 50 km resolution, so coasts and valleys can differ a little. Temperatures are adjusted by 1.6°C for the city's elevation. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.