Park climate1991–2020 climate normals381 m source elevationNASA POWER

Detailed twelve month climate normals for temperature, precipitation, and daylight duration

Arenal Volcano National Park: monthly climate

Name: Arenal Volcano National Park monthly climate normals
Creator: NASA POWER

At the representative location for Arenal Volcano National Park, monthly mean temperatures range from 24 to 27.3 °C (1991–2020). Compare precipitation, humidity, wind, and daylight for each month.

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Annual climate pattern

Analyzing twelve months of average temperature ranges alongside shifting daily precipitation trends

Annual Temperature and Precipitation Patterns in Arenal Volcano National Park

Long term climatology shows consistent warmth throughout the year, with monthly mean temperatures peaking in April at 27.29 degrees Celsius and average minimums remaining above 18 degrees Celsius. Average daily precipitation ranges from a low of 0.24 mm/day in March to 7.46 mm/day in October, based on 1991 to 2020 observations at a representative elevation of 381.42 meters in Arenal.

Mean temperatureAverage minimum–maximum rangePrecipitation

Annual mean: 25.2 °C
Warmest month: April
Coolest month: December
Wettest month: October

Twelve-month climate

Compare average temperature bounds, daily precipitation rates, and daylight across the annual cycle.

Arenal Volcano National Park Weather by Month: Twelve-Month Climate Comparison

Browsing the calendar year for Arenal Volcano National Park reveals critical shifts in average minimum, mean, and maximum temperatures alongside relative humidity and wind speed. Evaluating monthly historical baselines alongside average daily precipitation rates and calculated average daylight hours provides a complete ecological overview of the regional climate system.

	Mean temperature	Precipitation	Humidity	Wind speed	Daylight
January	24.1 °C18.1° to 31.7°	0.3 mm/day	76.6%	4.5 m/s	11.5 hours
February	25 °C18.6° to 34.2°	0.3 mm/day	70.8%	4.7 m/s	11.7 hours
March	26.3 °C19° to 36.3°	0.2 mm/day	64.6%	4.3 m/s	11.9 hours
April	27.3 °C19.9° to 36.8°	1.1 mm/day	64.4%	3.5 m/s	12.2 hours
May	26.5 °C21.1° to 35.4°	5 mm/day	75.3%	2.6 m/s	12.5 hours
June	25.4 °C21.1° to 31.9°	4.9 mm/day	84.2%	2.2 m/s	12.6 hours
July	25.1 °C20.7° to 31.2°	3.5 mm/day	83.9%	2.8 m/s	12.5 hours
August	25.1 °C20.7° to 31.6°	4.9 mm/day	84%	2.4 m/s	12.3 hours
September	24.8 °C20.7° to 31.1°	7.1 mm/day	86.4%	1.9 m/s	12.1 hours
October	24.3 °C20.5° to 29.9°	7.5 mm/day	88.7%	2.1 m/s	11.8 hours
November	24.1 °C19.1° to 29.8°	3.4 mm/day	86.8%	2.9 m/s	11.5 hours
December	24 °C18.5° to 30.3°	0.7 mm/day	82.4%	3.9 m/s	11.4 hours

Compare two months

See two months side by side and how much they differ. Both use the same 1991–2020 climate normals and NASA POWER data point as the table above, so they show typical conditions, not a forecast.

First month

Second month

Mean temperature: December: 24 °C; April: 27.3 °C; Change from December to April: +3.3 °C
Precipitation: December: 0.7 mm/day; April: 1.1 mm/day; Change from December to April: +0.4 mm/day
Daylight: December: 11.4 hours; April: 12.2 hours; Change from December to April: +0.8 hours

Calculated climate highlights

Comparing long-term averages for temperature, precipitation, wind, and daylight across the year

Calculated Monthly Climate Highlights for Arenal Volcano National Park

Thirty years of climatology data sampled at a representative park elevation of 381 meters reveal how temperature, precipitation, humidity, and wind averages change throughout the calendar year. Identifying the calculated warmest, coolest, wettest, and windiest months clarifies the broader annual patterns of Arenal Volcano National Park without relying on temporary weather records.

Warmest month: April27.3 °C
Coolest month: December24 °C
Wettest month: October7.5 mm/day
Driest month: March0.2 mm/day
Most humid month: October88.7%
Windiest month: February4.7 m/s
Longest daylight: June12.6 hours

Interactive climate map

National park climate map

Open the climate map to compare monthly temperature, precipitation, and other averages.

Global National Park Climate Map

Other park climates

Contrast monthly temperature, rainfall, and daylight cycles across diverse conservation landscapes.

Compare Monthly Climate Patterns of Arenal Volcano National Park with Other Reserves

Geographic discovery beyond Arenal Volcano National Park introduces complete environmental baselines for alternative protected areas throughout Costa Rica and neighboring territories. Standardized monthly averages for temperature, precipitation, humidity, wind, and daylight help contrast atmospheric conditions across diverse elevations and coastal microclimates.

Climate profileCosta Rica