San Gerardo weather in September (Alajuela, Costa Rica)
Will it be warm or cold in San Gerardo this September? Get all the weather information you need to plan your visit.
Temperatures
The typical weather for September in San Gerardo includes high temperatures and heavy rainfall. Daytime temperatures generally settle around 27°C, while nighttime can see a dip to about 20°C.
Precipitation
San Gerardo in September falls under the rainy season with heavy rainfall, averaging around 331 mm for the month. Rain is expected on roughly 23 days.Average sunshine
The area enjoys a balanced 159 hours of sunlight, ensuring it's neither too overcast nor too sunny.If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit San Gerardo. January, February, March and April typically offer the best circumstances. While May, June, August, September, October and November tend to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized San Gerardo climate page with graphs.
San Gerardo, monthly averages in September
Min Temperature
20°C
Max Temperature
27°C
Chance of Rain
78%
Precipitation
331 mm
Rainy days
23 days
Sunshine
159 hours *
Percentage Sunshine
*
Where to go in Costa Rica in September
Find out more about the weather in Costa Rica and which places have the best travel conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in this month?
It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Interested in more climate information?
This site provides you with all the information you need about the climate in San Gerardo.
Our site offers climate and forecast data for every country in the world. Are you going to Costa Rica? On this website you can find historical weather averages for many cities in Costa Rica. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.
