January weather guide

Costa Rica weather in January

Peak dry season — hot, sunny, and full

Score76Great
Typical day32°C90°F · low 23°C
Rain & sun11mm10.9 hrs sun/day
Rainforest trees meeting the shoreline on the Pacific coast of Costa Rica
By
Institutional byline · Updated

What the weather is like in January

Avg high
32°C
90°F
Avg low
23°C
73°F
Rainfall
11mm
best
Sun / day
10.9 hrs

January is the heart of the Pacific dry season: 11mm of rain, 11 hours of sun, and hot 32°C days in Guanacaste. It is also peak demand — the first week is holiday-priced and popular lodges are booked months out. Highlands are cooler and breezy.

Against December, January runs 1°C warmer with 28mm less rain and 0.7 hours more sun a day.

Averages are five-year Open-Meteo (ERA5) figures for Liberia; other parts of Costa Rica vary. Full sources below.

What to pack for Costa Rica in January

  • Lightweight, breathable clothing
  • Sun hat & high-SPF sunscreen
  • Swimwear

What's on in January

  • Fiestas de Palmares (Palmares, Alajuela) — Two weeks of concerts, bull-riding, and street parties in mid-January — the country's biggest fair.

Is January the right month?

Costa Rica's best month is February; the toughest is October. For the best balance of good conditions and smaller crowds, aim for April. See the full month-by-month breakdown for Costa Rica.

Where to stay in January

January is peak season in Costa Rica, so prices are at their highest. Book early for the best choice of rooms.

Links open a hotel search for 12–18 Jan 2027; you can change the dates there. We may earn a commission, at no extra cost to you.

Frequently asked questions

Is January a good time to visit Costa Rica?
January scores 76/100 on the Atlas Ranger Score — "Great" — which blends weather with crowds and price. January is one of the best months to visit Costa Rica — strong conditions and the reason many travellers pick this window.
How warm is Costa Rica in January?
Expect daytime highs around 32°C (90°F) and overnight lows near 23°C (73°F), with about 10.9 hours of sun a day.
Does it rain in Costa Rica in January?
January sees roughly 11mm of rain — relatively dry.
What should I pack for Costa Rica in January?
For January, pack: Lightweight, breathable clothing; Sun hat & high-SPF sunscreen; Swimwear.
How far ahead should I book Costa Rica for January?
January is peak season, so rooms and fares are at their most expensive and the best places go first. Book several months out, and take a rate you can cancel if your dates might move.

Sources: Instituto Costarricense de Turismo (Visit Costa Rica) · Open-Meteo Historical Climate Data (ERA5) · Instituto Meteorológico Nacional (IMN) Costa Rica · NOAA National Hurricane Center. Full provenance on the Costa Rica guide.

Keep planning

Plan your Costa Rica trip