Climate Insights for Arenal

The climate in Arenal is hot. The average annual temperature is 28°C and approximately 1,636 mm of precipitation falls per year. May is the wettest month, receiving around 224 mm of rainfall. 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 83°F and approximately 64.4 in of precipitation falls per year. May is the wettest month, receiving around 8.8 in of rainfall. Arenal sits near the equator, so seasonal temperature differences are minimal throughout the year.

Arenal sees moderate temperature variation throughout the year, ranging from 24°C to 36°C. February is the hottest month, with daytime highs reaching 36°C and an average of 30°C. November is the coolest month, with minimum temperatures around 24°C and an average of 27°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.Arenal sees moderate temperature variation throughout the year, ranging from 76°F to 96°F. February is the hottest month, with daytime highs reaching 96°F and an average of 85°F. November is the coolest month, with minimum temperatures around 76°F and an average of 81°F. On average, daily temperatures fluctuate by about 15°F between overnight lows and afternoon highs.

Arenal is a fairly wet location, receiving approximately 1,636 mm of precipitation annually, which averages out to around 136 mm per month. The wettest month is May, averaging 224 mm of rainfall. June and July also tend to see above-average precipitation. The driest month is February, with just 15 mm. That's 209 mm less than May, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.Arenal is a fairly wet location, receiving approximately 64.4 in of precipitation annually, which averages out to around 5.4 in per month. The wettest month is May, averaging 8.8 in of rainfall. June and July also tend to see above-average precipitation. The driest month is February, with just 0.6 in. That's 8.2 in less than May, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Arenal is relatively calm, with an average annual wind speed of 7km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months.Arenal is relatively calm, with an average annual wind speed of 4mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is March, averaging 6mph, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 3mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3mph gap 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.