The best time to visit Monteverde & Caribbean Costa Rica

The wet side of Costa Rica: cloud forest on the divide, and a Caribbean shore on a different rainfall clock from the Pacific. Costa rica's caribbean and cloud forest barely has a temperature season: daytime highs move only about 2 °C across the whole year, from 26 °C in December to 28 °C in April. What changes instead is rain.

On a strict reading, no month in Costa Rica's Caribbean and cloud forest clears every threshold for a hiking trip — the limits below are absolute, not relative to the region. That does not make it a bad destination; it means the trip has to be planned around a specific constraint rather than a season.

The binding constraint here is temperature and rainfall — that is what rules months out, not any composite judgement. Rainfall is sharply seasonal: October averages 382 mm against 95 mm in March, so the wet season is the real planning constraint rather than heat or cold. January is the weakest month on these criteria.

What Costa Rica's Caribbean and cloud forest is known for

Monteverde's cloud forest is crossed by hanging bridges at canopy level and is a resplendent quetzal stronghold
Arenal was one of the world's most active volcanoes until 2010 and still heats the hot springs around La Fortuna
Tortuguero's canals are a major green turtle nesting site, reachable only by boat or small plane
The Caribbean coast has an Afro-Caribbean culture and cuisine distinct from the rest of the country
Rainfall here does not follow the Pacific dry season — September and October are often the clearer months

Month by month

Month	High °C	Low °C	Precip mm	Wet days
January	26	20	182	19.8
February	27	20	107	15.9
March	28	21	95	16.3
April	28	22	143	18.6
May	28	22	284	26.9
June	27	22	380	29.2
July	27	22	372	29.4
August	27	22	299	29.2
September	27	22	303	28.9
October	27	22	382	29.9
November	26	21	372	27.1
December	26	21	302	23.8

Ticked rows are months where every hard requirement for a hiking trip is met across at least half the month.

Open Monteverde & Caribbean Costa Rica on the map →

Beach at Puerto Viejo, Costa Rica © Aude, CC BY-SA 4.0 · cropped and resized · Wikimedia Commons

Nearby regions

Figures are 30-year climatology sampled at Monteverde, La Fortuna, Puerto Viejo, Cahuita and Tortuguero, averaged across those locations, from ERA5-Land reanalysis fitted with a harmonic seasonal cycle and a trend term, evaluated for 2026. Sampling named towns rather than averaging the whole region avoids blending valley and mountain conditions into a figure true of neither. Cells are about 0.08° wide, from ERA5-Land's 0.1° grid, which is itself driven by a 0.25° (~28 km) atmospheric reanalysis — so individual valleys, sheltered bays and single summits are not resolved. In steep terrain read these as conditions for the wider area rather than for one village. They describe typical conditions, not a forecast. Read how the climatology is built.