Costa Rica · Costa Rica

October

Still the wet season on the Pacific, but whale watching peaks and the Caribbean coast is at its driest.

Best match

#3 of 12 months

October is one of the best times to visit Costa Rica.

Climate

High

25°C

Low

18°C

Rain

300mm

Sun

4.8hrs/day

30-year climate normals · Open Meteo ERA5

How October scores in Costa Rica

Weather

Below average

Value

Outstanding

Crowds

Outstanding

Events

Excellent

Atmosphere

Very good

What you gain in October

↑Humpback whale watching peaks in October on the Pacific south coast — the Antarctic humpback migration is at maximum density, with excellent sighting rates from Marino Ballena and Drake Bay
↑Caribbean coast mini-dry season continues: Puerto Viejo and Cahuita enjoy their calmest, sunniest period while the Pacific remains wet — a genuinely counter-intuitive good-weather window
↑Budget travel at its best: combined with September as the cheapest window, October offers extreme value with no reduction in wildlife quality

What you sacrifice

↓300mm of rain on the Pacific — October is the second-wettest month and conditions remain very wet; activities on the Pacific side require serious weather flexibility
↓Arenal Volcano is almost always shrouded in cloud in October; visiting La Fortuna for the hot springs, hanging bridges, and La Fortuna Waterfall makes sense, but volcano views require exceptional luck
↓Some transport links and small ferries (Montezuma, Nicoya Peninsula) can be disrupted in heavy rains; the Osa Peninsula requires a well-researched itinerary

How October compares to July (best month)

Factor	October	July ★
Weather	3	5
Value	9	8
Crowds	9	8

Full comparison: October vs July →

← September All months →November →

October in other destinations

Climate data: 30-year normals (1991–2020) from Open Meteo ERA5 reanalysis. Scores compare months within Costa Rica, not across destinations. Methodology →