Climate Insights for Arenal

The climate in Arenal is hot. The average annual temperature is 27°C and approximately 5,411 mm of precipitation falls per year. Arenal receives a notable amount of rainfall throughout the year, including during its driest month. Arenal sits near the equator, so seasonal temperature differences are minimal throughout the year.The climate in Arenal is hot. The average annual temperature is 80°F and approximately 213 in of precipitation falls per year. Arenal receives a notable amount of rainfall throughout the year, including during its driest month. Arenal sits near the equator, so seasonal temperature differences are minimal throughout the year.

Arenal has relatively stable temperatures year-round, staying within a 9°C range. The warmest month is February, when average highs reach 32°C and the mean temperature sits around 27°C. November is the coolest month, with minimum temperatures around 23°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows.Arenal has relatively stable temperatures year-round, staying within a 15°F range. The warmest month is February, when average highs reach 89°F and the mean temperature sits around 81°F. November is the coolest month, with minimum temperatures around 74°F and an average of 79°F. Daily temperature variation is modest, with an average difference of 12°F between highs and lows.

Arenal is a very wet location, receiving approximately 5,411 mm of precipitation annually, which averages out to around 451 mm per month. The wettest month is November, averaging 579 mm of rainfall. August and October also tend to see above-average precipitation. The driest month is February, with just 228 mm. That's 351 mm less than November, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.Arenal is a very wet location, receiving approximately 213 in of precipitation annually, which averages out to around 17.8 in per month. The wettest month is November, averaging 22.8 in of rainfall. August and October also tend to see above-average precipitation. The driest month is February, with just 9 in. That's 13.8 in less than November, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.

Arenal is relatively calm, with an average annual wind speed of 4km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 5km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.Arenal is relatively calm, with an average annual wind speed of 3mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is December, averaging 3mph, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 2mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1mph between the calmest and windiest months.

The table below shows monthly climate averages for Arenal based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Arenal based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.