Poasito Weather & Climate: Best Time to Visit
With consistently stable weather, Poasito, Alajuela, Costa Rica, sees little seasonal temperature change. Daytime highs average 25°C (77°F), ranging from 27°C (81°F) in April to 24°C (75°F) in January.
With around 2886 mm (114 in) of annual rainfall, Poasito has a notably wet climate. However, this rainfall is not evenly distributed — the city has a distinct rainy season from May to December. The wettest month is October. The sunniest month is March, with 9.5 hours of sunshine per day on average.
Monthly Temperature in Poasito
The climate in Poasito remains fairly constant, offering comfortable temperatures throughout the year. Average daytime temperatures reach a comfortable 27°C (81°F) in April. In January, the coolest month of the year, temperatures drop to a comfortable 24°C (75°F).
At night, temperatures range from around 18°C (64°F) in April to 16°C (61°F) in January.Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Poasito
Poasito is known for its substantial rainfall, with annual precipitation reaching 2886 mm (114 in). Poasito can be quite wet during October, receiving approximately 375 mm (15 in) of precipitation over 23 rainy days.
In contrast, during the driest month (March), you will experience much drier conditions, with 72 mm (2.8 in) of precipitation spread across 8 rainy days days. For more details, please visit our Poasito 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 Poasito
Poasito can be enjoyed more throughout the sunniest month of March under a blue sky, with approximately 9.5 hours of sunshine daily. In contrast, the city experiences much darker days in June, with only 4.8 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Poasito by Month
The relative humidity is high throughout the year in Poasito.
The city experiences its highest humidity in October, reaching 87%. In March, the humidity drops to its lowest level at 66%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Poasito 3-Day Forecast
Check the conditions for any month of the year.
Best Time to Visit Poasito
During January, February, March and April, Poasito experiences its most favorable weather, with temperatures between 24°C (75°F) and 27°C (80°F). These mild conditions make it an excellent time for a visit.The weather does bring rainfall during this period, between 72 mm (2.8 in) and 127 mm (5 in).
Plan accordingly for May, June, July, August, September, October, November and December, when conditions bring the heaviest precipitation. Ready to plan your travels but need destination ideas? Our smart tool recommends places based on the climate conditions you prefer. Start planning with our destination weather tool.
