Fortuna Weather & Climate: Best Time to Visit
With consistently stable weather, Fortuna, Alajuela, Costa Rica, sees little seasonal temperature change. Daytime highs average 30°C (86°F), ranging from 32°C (90°F) in April to 29°C (84°F) in January.
The city has a wet climate, receiving around 1974 mm (78 in) of rainfall per year. Despite the high annual total, it has distinct dry (February to March) and wet (May to October) seasons. October is the wettest month. The most sunshine falls in March, with an average of 10.2 hours of daily sunshine.
Monthly Temperature in Fortuna
The climate in Fortuna remains fairly constant, offering comfortable temperatures throughout the year. On average, daytime temperatures range from a very warm 32°C (90°F) in April to a comfortable 29°C (84°F) in January.
Nighttime temperatures range from 22°C (72°F) in April to 21°C (70°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Fortuna
Fortuna is known for its substantial rainfall, with annual precipitation reaching 1974 mm (78 in). The seasons in Fortuna bring significant changes in precipitation. The wettest month, October, receives heavy rainfall, with an average of 328 mm (13 in) of precipitation. This rainfall is distributed across 22 rainy days.
In contrast, the driest month, March, experiences much less rainfall, totaling 25 mm (1 in) over 6 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Fortuna Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Fortuna
In Fortuna, summer days are longer and more sunny, with daily sunshine hours peaking at 10.2 hours in March. As the darker season arrives, the brightness of the sun becomes less. September sees a soft sun for only 5.3 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Fortuna by Month
The relative humidity is high throughout the year in Fortuna.
The city experiences its highest humidity in September, reaching 86%. In March, the humidity drops to its lowest level at 60%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Fortuna 3-Day Forecast
Check the conditions for any month of the year.
Best Time to Visit Fortuna
In general, temperatures in Fortuna range from 29°C (84°F) to 32°C (90°F) across the year, with January, February, March, April and December being the best time to visit for those who prefer drier weather.Make your experience more enjoyable by planning to be outside during the cooler parts of the day, either early morning or as the sun begins to set. Visitors should note that May, June, July, August, September and October are part of the rainy season, bringing substantial rainfall. Seeking the perfect travel destination for this year? We've created a tool that suggests locations matching your desired weather. Let our weather planner guide your travel decisions.
