Arenal

Current Weather

25°76°

Mostly Clear

Feels Like: 23°74°

Min: 24°74°

Max: 31°88°

The next few hours will be mostly clear, with tomorrow reaching 29°C and dropping to 24°C. The coming days will be drizzle

Hourly Forecast
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46%
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46%
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Air Quality
17
Good

Air quality is satisfactory, and air pollution poses little or no risk.

GoodHazardous
Daylight Hours

06:57

Sunrise

18:34

Sunset

11 hours 36 minutes of sunlight today
Moon

06:45

Moonrise

18:34

Moonset

Daily Forecast

Saturday

24°74°
31°88°

Today

24°75°
29°84°

Monday

23°73°
31°87°

Tuesday

22°72°
30°86°

Wednesday

21°71°
28°83°

Thursday

22°72°
30°85°

Friday

23°74°
28°83°

Saturday

23°73°
28°83°

Sunday

23°74°
24°75°

Monday

23°74°
26°79°
UV Index
No protection needed
0Low
LowExtreme
Humidity
93%Very Humid
LowHigh
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Weather in Arenal tomorrow, October 11, 2026

Arenal starts October 11, 2026 looking damp, with rain in the forecast and wetter spells likely at times. Waterproof kit is the safer call for early plans. Wetter spells lean into the morning, when rain odds reach about 20% near 09:00. Skies look heaviest around 11:00, with cover close to 39%.Arenal starts October 11, 2026 looking damp, with rain in the forecast and wetter spells likely at times. Waterproof kit is the safer call for early plans. Wetter spells lean into the morning, when rain odds reach about 20% near 09:00. Skies look heaviest around 11:00, with cover close to 39%.

The temperature range runs from about 24°C up to 29°C. Expect humidity between 71% and 94%, most humid near 02:00. Airflow remains manageable, reaching about 22 km/h around 11:00.The temperature range runs from about 75°F up to 84°F. Expect humidity between 71% and 94%, most humid near 02:00. Airflow remains manageable, reaching about 14 mph around 11:00.

The second half of the day still looks unsettled, with rain probability around 46% by 12:00. Dense cloud near 51% at 14:00 keeps the feel grey. Horizontal visibility holds close to 16.1 km. Expect sunrise at 06:57, sunset at 18:33, and 11 hours 35 minutes of sunlight today overall.The second half of the day still looks unsettled, with rain probability around 46% by 12:00. Dense cloud near 51% at 14:00 keeps the feel grey. Horizontal visibility holds close to 10 mi. Expect sunrise at 06:57, sunset at 18:33, and 11 hours 35 minutes of sunlight today overall.

Overall, Arenal on October 11, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 46% and the high sits around 29°C.Overall, Arenal on October 11, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 46% and the high sits around 84°F.

Frequently asked questions about weather in Arenal

How warm does it get in Arenal?

The warmest month in Arenal is August, with average high temperatures of 31°C. The average temperature during this period is around 27°C.The warmest month in Arenal is August, with average high temperatures of 88°F. The average temperature during this period is around 81°F.

How cold does it get in Arenal?

The coldest month in Arenal is January, with average low temperatures of 20°C. The average temperature during this period is around 23°C.The coldest month in Arenal is January, with average low temperatures of 68°F. The average temperature during this period is around 74°F.

What is the wettest time of year in Arenal?

The wettest month in Arenal is May, with an average of 205 mm of precipitation.The wettest month in Arenal is May, with an average of 8.1 in of precipitation.

What is the driest time of year in Arenal?

The driest month in Arenal is February, with an average of 33 mm of precipitation.The driest month in Arenal is February, with an average of 1.3 in of precipitation.

View full climate insights for Arenal →