Nuevo Arenal Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Nuevo Arenal.

Climate overview of Nuevo Arenal

The climate in Nuevo Arenal, Guanacaste, Costa Rica, is remarkably consistent, with temperatures year-round averaging 29°C (84°F). The warmest month is April at 31°C (88°F), and the coolest is January at 28°C (82°F).

Rainfall is high, totalling around 2276 mm (90 in) per year. October is the wettest month and March the driest. The city also experiences a distinct rainy season from May to November.

Nuevo Arenal Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Nuevo Arenal - and find the best time to visit.

Monthly Temperature in Nuevo Arenal

In Nuevo Arenal temperatures are generally consistent throughout the year. Average maximum daytime temperatures range from a very warm 31°C (88°F) in April, the warmest time of the year, to a comfortable 28°C (82°F) during cooler months like January.

At night, you can expect temperatures ranging from 22°C (72°F) in April to around 20°C (68°F) during January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Nuevo Arenal

Nuevo Arenal experiences significant rainfall throughout the year, averaging 2276 mm (90 in) of precipitation annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, October it receives heavy rainfall, averaging 318 mm (13 in) of precipitation, recorded across 22 rainy days. In contrast, the driest month March brings less rainfall, with 37 mm (1.5 in) over 7 rainy days. For more details, please visit our Nuevo Arenal Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

Humidity in Nuevo Arenal by Month

Best Time to Visit Nuevo Arenal

Conditions in Nuevo Arenal are generally most comfortable in January and February. They are typically least comfortable in May, June, September and October.

Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.

  • Best overall: January and February
  • Warmest weather: March, April and May
  • Fewest rainy days: February, March and April
  • Seasonal pattern: A distinct rainy season from May to November

Frequently asked questions about the climate in Nuevo Arenal

What is the best time to visit Nuevo Arenal?

January and February typically offer the most optimal weather in Nuevo Arenal. In contrast, May, June, September and October tend to have less optimal conditions. Nuevo Arenal has a distinct rainy season from May to November.

What temperatures can I expect in Nuevo Arenal?

Daytime highs range from 28°C (82°F) in January to 31°C (88°F) in April. Nighttime lows range from 20°C (68°F) to 22°C (72°F). Temperatures stay relatively stable year-round.

How much rain does Nuevo Arenal get?

Annual rainfall is around 2276 mm (90 in). October is the wettest month with 318 mm (13 in), while March is the driest with 37 mm (1.5 in).

Nuevo Arenal 3-Day Forecast

Nuevo Arenal on the map

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