ClimateForecastDecemberJanuary >>

Atenas Climate by Month

Atenas has pretty similar weather over the course of the year. It also has a notably wet climate with much precipitation. Let's now guide you through the climate details for a complete overview.

Average day and night temperature

With minimal seasonal shifts, Atenas experiences a constant climate year-round. Average daytime temperatures range from a comfortable 29°C in March, the warmest time of the year, to a comfortable 26°C during cooler months like January. At night, temperatures typically average around 18°C during these months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Atenas has a notably wet climate with abundant precipitation, recording 3182 mm of rainfall per year. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, October receives heavy rainfall, averaging 497 mm of precipitation, recorded across 22 rainy days. In contrast, the drier season, February brings less rainfall, with 31 mm over 8 rainy days.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Seasonal changes in sunshine hours are quite dramatic in Atenas. While January receives considerable daily sunshine with up to 9.5 hours, June marks the darkest time of the year, where sunshine is scarce with only 4.8 hours of sunlight per day.

Monthly hours of sunshine

Data from: Santamaria, Costa Rica (25 KM, 15 Miles).

Daily hours of sunshine

Data from: Santamaria, Costa Rica (25 KM, 15 Miles).

The best time of year to visit Atenas in Costa Rica

Atenas has high temperatures year round ranging between 26°C and 29°C.
The best time to visit is during the drier months: January, February and March.

Other facts from our historical weather data:
  • Which is the warmest month in Atenas?
    March has an average maximum temperature of 29°C and is the warmest month of the year.
  • Which is the coldest month in Atenas?
    The coldest month is January with an average maximum temperature of 26°C.
  • Which is the wettest month in Atenas?
    October tops the wettest month list with 497 mm of rainfall.
  • Which is the driest month in Atenas?
    February is the driest month with 31 mm of precipitation.
  • Which is the sunniest month in Atenas?
    January is the sunniest month with an average of 285 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Atenas

    Sat   Dec 14
    31°C | 21°C
    SE 11 km/h
    0.3 mm
    partly cloudy and  chance of slight rain

    partly cloudy and chance of slight rain

    Sun   Dec 15
    30°C | 21°C
    SW 11 km/h
    1.4 mm
    partly cloudy and  chance of rain

    partly cloudy and chance of rain

    Mon   Dec 16
    28°C | 20°C
    SW 7 km/h
    0.9 mm
    partly cloudy and rain

    partly cloudy and rain