Arenal Weather in January

Mild and comfortable, with frequent heavy rain. Average highs of 19°C and lows of 14°C, with around 23 rainy days expected throughout the month.

While January isn't our top-rated month for Arenal, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.

Average high

19°C

Average low

14°C

Rainy days

23 days

Best months to visit

Year-round

What to do in Arenal in January

Whatever the weather, Arenal rewards curious visitors. Here are some of the best ways to spend your time:

Arenal volcano hiking and viewing Natural hot spring soaking in thermal pools Lake Arenal kayaking and fishing Hanging bridges and canopy walks through forest Rainforest night tours and wildlife spotting Adventure activities: zip-lining, rappelling, canyoning

What to pack for January

Layer up — a mid-weight jacket, jumpers, and comfortable trousers. Waterproof shoes are recommended. Scarves and gloves may be useful in the evenings.