San Gerardo Weather & Climate: Best Time to Visit
San Gerardo, Alajuela, Costa Rica, enjoys a steady climate throughout the year, with daytime temperatures typically around 27°C (81°F). April is the warmest month at 29°C (84°F), while January is the coolest at 26°C (79°F).
Rainfall is high, totalling around 2486 mm (98 in) per year. October is the wettest month and March the driest. The city also experiences a distinct rainy season from May to November. March is the sunniest month, averaging 9.4 hours of sunshine per day.
Monthly Temperature in San Gerardo
The temperature in San Gerardo remains steady throughout the year, providing a consistently comfortable climate. Average maximum daytime temperatures range from a comfortable 29°C (84°F) in April, the warmest time of the year, to a comfortable 26°C (79°F) during cooler months like January.
At night, you can expect temperatures ranging from 20°C (68°F) in April to around 18°C (64°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in San Gerardo
San Gerardo has a relatively rainy climate with high precipitation levels, averaging 2486 mm (98 in) of rainfall annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, October it receives heavy rainfall, averaging 355 mm (14 in) of precipitation, recorded across 22 rainy days. In contrast, the driest month March brings less rainfall, with 42 mm (1.7 in) over 7 rainy days. For more details, please visit our San Gerardo 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 San Gerardo
Seasonal changes in sunshine hours are quite dramatic in San Gerardo. While March receives considerable daily sunshine with up to 9.4 hours, June marks the darkest time of the year, where sunshine is scarce with only 5.2 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
San Gerardo 3-Day Forecast
Check the conditions for any month of the year.
Best Time to Visit San Gerardo
During the months of January, February, March and April, San Gerardo enjoys pleasant weather with average temperatures ranging from 26°C (79°F) to 29°C (84°F). These months are perfect for sightseeing and exploring.Rainfall during this time ranges from 42 mm (1.7 in) in March to 90 mm (3.5 in) in January. This means you can expect a mix of sunny days and occasional showers.
The rainy season falls during May, June, July, August, September, October and November, bringing heavy precipitation. Looking for inspiration on where to travel this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
