Nuevo Arenal Weather in January
January in Nuevo Arenal brings high temperatures, with highs of 28°C (82°F) and nights dropping to 20°C (68°F). Rainfall is on the higher side this month, averaging around 90 mm (3.5 in), so keep a rain jacket handy.
Rainfall in Nuevo Arenal in January
Based on our climate data of the past 30 years, about 10 days of rain are anticipated, with 90 mm (3.5 in) on average. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Nuevo Arenal in January
January is a perfect month in Nuevo Arenal, with 28°C (82°F) during the day and 20°C (68°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. At 20°C (68°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping. While slightly cooler, this month still offers warm and pleasant weather.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Costa Rica, check out our Nuevo Arenal's climate page.
Nuevo Arenal Temperature in January
Min Temperature
20°C (68°F)
Max Temperature
28°C (82°F)
Chance of Rain
33%
Precipitation
90 mm (3.5 in)
Rainy days
10 days
Humidity
86% *
Daily Historical Temperatures
42-year average (1976-2026)
Based on our historical records, temperatures in Nuevo Arenal typically stay consistent throughout January, with daily highs averaging around 28°C (82°F). Nights are warm, with lows around 22°C (72°F).
Average temperatures in January
Daily Historical Precipitation
42-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Nuevo Arenal in January
Browse day-by-day weather records for Nuevo Arenal spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Best Places in Costa Rica in January
Find out more about the weather in Costa Rica and which places have the best travel conditions in this month. See all of Costa Rica in January →
perfect weather
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tolerable
unpleasant
poor
What to Wear in Nuevo Arenal in January
Warm weather calls for comfortable, breathable clothing in January. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho.What To Do in Nuevo Arenal in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Costa Rica, check out our Nuevo Arenal's climate page.
See the full Nuevo Arenal climate overview or explore weather in Costa Rica.
