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
The city experiences its highest humidity in July, reaching 90%. In April, the humidity drops to its lowest level at 78%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Nuevo Arenal
To make the most of your visit, consider exploring early in the morning or during the pleasant late afternoon hours when the temperature is most comfortable.
Be aware that May, June, July, August, September, October and November constitute the rainy season, with significant precipitation. Seeking the perfect travel destination for this year? We've created a tool that suggests locations matching your desired weather. Let our weather planner guide your travel decisions.
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 3-Day Forecast
Nuevo Arenal on the map
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