San José weather in September (San José Province, Costa Rica)
Interested in knowing the climate of San José, Costa Rica in September? Here’s everything you need to plan your visit.
Temperatures
In September, San José usually has high temperatures and heavy rainfall. During the day, temperatures usually reach up to 24°C. At night, they tend to fall to approximately 16°C.
Precipitation
San José in September falls under the rainy season with heavy rainfall, averaging around 476 mm for the month. Based on our climate data of the past 30 years, about 24 days of rain are anticipated.
Average sunshine
The area experiences a moderate amount of sunshine, with approximately 149 hours of sunlight expected. Even though this month is part of the rainy season, you could still see the sun every now and then.September in San José has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
Select a Month of Interest
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Costa Rica, check out our San José's climate page.
San José, monthly averages in September
Min Temperature
16°C
Max Temperature
24°C
Chance of Rain
79%
Precipitation
476 mm
Rainy days
24 days
Humidity
85%
Sunshine
149 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
Select a Month of Interest
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Costa Rica, check out our San José's climate page.
So, what should you wear in this month?
For visitors traveling to San José, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.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 José.
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.
