Best year time to visit Arenal Viejo

General weather information about Arenal Viejo

Average annual temperature is 23.6 °C

Absolute maximum temperature: 32.0 °C

Absolute minimum temperature: 18.0 °C

Number of sunny days: 34 days

Number of rainy days: 331 days

Look at detailed online map of Arenal Viejo

* Weather data for Arenal Viejo Costa Rica is based on climate observations for 2026 year

Arenal Viejo air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)26.926.628.832.032.029.029.630.130.429.128.327.9
Average daytime temperature (°C)24.824.827.028.530.027.427.227.928.726.826.325.3
Average temperature (°C)21.921.723.024.025.324.124.124.324.723.623.522.8
Average night temperature (°C)20.119.920.520.722.222.022.222.222.321.621.821.0
Absolute minimum temperature (°C)18.019.119.519.521.221.021.320.621.220.520.918.4

Arenal Viejo monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)11.011.012.012.012.012.012.012.012.012.011.011.0
Daylight mean duration (h)11.611.812.112.412.612.712.712.512.211.911.611.5
Daylight minimum duration (h)11.011.011.012.012.012.012.012.012.011.011.011.0
Sunshine mean duration (h)8.99.510.210.99.78.47.58.09.56.96.97.1
Precipitation (mm)736098208321512225811749424671
Sunny days1271540002003
Rainy days302624152730313128313028
Snow days000000000000

Arenal Viejo - weather forecast by months

Arenal Viejo weather in januaryArenal Viejo weather in februaryArenal Viejo weather in marchArenal Viejo weather in aprilArenal Viejo weather in mayArenal Viejo weather in juneArenal Viejo weather in julyArenal Viejo weather in augustArenal Viejo weather in septemberArenal Viejo weather in octoberArenal Viejo weather in novemberArenal Viejo weather in december

Best time to visit Arenal Viejo:

The best time to visit Arenal Viejo during the most sunny months:

  • April — 10.9(h)

The largest precipitation sum in Arenal Viejo is at

  • June — 215(mm)
  • August — 258(mm)
  • October — 494(mm)
  • November — 246(mm)

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    Frequently asked questions

    When is the best time to visit Arenal Viejo?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Arenal Viejo.
    What is the weather like in Arenal Viejo?
    See average temperature, rainfall and daylight hours for Arenal Viejo by month in the table above.
    How many sunny days does Arenal Viejo have?
    The monthly weather statistics above show sunshine and rainfall patterns for Arenal Viejo throughout the year.