Arenal
26°78°
Light Rain and Humid
Feels Like: 27°80°
Min: 23°73°
Max: 28°83°
The next few hours will be humid and partly cloudy, with today reaching 28°C and dropping to 24°C. The coming days will be drizzle
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Air quality is satisfactory, and air pollution poses little or no risk.
05:42
Sunrise
17:24
Sunset
06:23
Moonrise
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View stargazing scoreWeather in Arenal today, October 11, 2026
Rain features in Arenal on October 11, 2026, so keep waterproofs handy through the day. The damp theme is strongest where shower chances rise.Rain features in Arenal on October 11, 2026, so keep waterproofs handy through the day. The damp theme is strongest where shower chances rise.
The day peaks near 28°C and cools toward 23°C. Relative humidity sits between 98% and 99%, reaching its peak around 17:00. Airflow remains manageable, reaching about 5 km/h around 15:00.The day peaks near 83°F and cools toward 73°F. Relative humidity sits between 98% and 99%, reaching its peak around 17:00. Airflow remains manageable, reaching about 3 mph around 15:00.
Through the afternoon wet weather remains a factor, with rain chances near 98% around 15:00. Cloud also stays substantial, close to 100% near 18:00. Expect visibility near 11.9 km, with poorer spells close to 4.2 km. The sun rises at 05:42 and sets at 17:24, for a total of 11 hours 42 minutes of sunlight today.Through the afternoon wet weather remains a factor, with rain chances near 98% around 15:00. Cloud also stays substantial, close to 100% near 18:00. Expect visibility near 7.4 mi, with poorer spells close to 2.6 mi. The sun rises at 05:42 and sets at 17:24, for a total of 11 hours 42 minutes of sunlight today.
The practical takeaway for Arenal on October 11, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 28°C.The practical takeaway for Arenal on October 11, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 83°F.
Frequently asked questions about weather in Arenal
How warm does it get in Arenal?
The warmest month in Arenal is May, with average high temperatures of 33°C. The average temperature during this period is around 26°C.The warmest month in Arenal is May, with average high temperatures of 91°F. The average temperature during this period is around 79°F.
How cold does it get in Arenal?
The coldest month in Arenal is January, with average low temperatures of 17°C. The average temperature during this period is around 21°C.The coldest month in Arenal is January, with average low temperatures of 62°F. The average temperature during this period is around 70°F.
What is the wettest time of year in Arenal?
The wettest month in Arenal is October, with an average of 184 mm of precipitation.The wettest month in Arenal is October, with an average of 7.2 in of precipitation.
What is the driest time of year in Arenal?
The driest month in Arenal is March, with an average of 23 mm of precipitation.The driest month in Arenal is March, with an average of 0.9 in of precipitation.