Best year time to visit Guanacaste

General weather information about Guanacaste

Average annual temperature is 27.1 °C

Absolute maximum temperature: 37.2 °C

Absolute minimum temperature: 21.2 °C

Number of sunny days: 104 days

Number of rainy days: 261 days

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

Guanacaste air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)32.934.334.735.737.233.433.833.733.131.332.232.2
Average daytime temperature (°C)30.732.132.934.034.430.531.530.730.829.129.830.4
Average temperature (°C)26.427.427.528.629.026.927.426.826.825.726.226.7
Average night temperature (°C)23.124.223.324.024.924.324.624.223.623.423.723.8
Absolute minimum temperature (°C)21.223.521.422.022.923.522.922.722.622.422.421.7

Guanacaste 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)10.310.510.611.410.69.09.99.09.98.39.110.1
Precipitation (mm)170631613732020930620749933620
Sunny days19251615612200216
Rainy days12315152529292930312815
Snow days000000000000

Guanacaste - weather forecast by months

Guanacaste weather in januaryGuanacaste weather in februaryGuanacaste weather in marchGuanacaste weather in aprilGuanacaste weather in mayGuanacaste weather in juneGuanacaste weather in julyGuanacaste weather in augustGuanacaste weather in septemberGuanacaste weather in octoberGuanacaste weather in novemberGuanacaste weather in december

Best time to visit Guanacaste:

The largest precipitation sum in Guanacaste is at

  • June — 320(mm)
  • August — 306(mm)
  • October — 499(mm)
  • November — 336(mm)

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    Frequently asked questions

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