Weather in September in Guanacaste
Considering a trip to Guanacaste this September and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:
What is the weather like in Guanacaste in September?
Guanacaste is a region in Costa Rica. September in Guanacaste generally has temperatures that range from warm to very warm, with heavy precipitation.
Temperatures
The average maximum daytime temperatures vary from warm in Puerto Coyote at 29°C to very warm in Nicoya at 31°C. Nighttime temperatures generally drop to 23°C in Nicoya and 25°C in Puerto Coyote. The temperatures cited for both day and night represent usual averages, but it's possible some days could be hotter. It's advisable to dress accordingly to handle the heat.To learn more about the conditions in specific areas of Guanacaste, check out the map below.
Precipitation
In September, precipitation varies across different areas. From heavy rainfall in Puerto Soley with an average of 277 mm to heavy rainfall in Sámara with 436 mm.Average sunshine
Tamarindo enjoys a balanced 158 hours of sunlight. Ensuring it's neither too overcast nor too sunny.For an in-depth overview of the yearly conditions, do visit our Guanacaste climate page.
Where to go in Guanacaste in September
perfect weather
pleasant
tolerable
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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 Guanacaste's climate page.
Popular destinations
What is the weather like in September for the 5 most popular destinations in Guanacaste?
Tamarindo
In September Tamarindo generally has very high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 25°C and heavy monthly rainfall. So on average the conditions are poor that month.
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Coco
In September Coco generally has high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 25°C and heavy monthly rainfall. So on average the conditions are poor that month.
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Playa Flamingo
In September Playa Flamingo generally has high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 25°C and heavy monthly rainfall. So on average the conditions are poor that month.
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Sámara
In September Sámara generally has high temperatures with maximum daytime temperatures around 29°C, minimum nighttime temperatures around 24°C and heavy monthly rainfall. So on average the conditions are poor that month.
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Playa Grande
In September Playa Grande generally has very high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 25°C and heavy monthly rainfall. So on average the conditions are poor that month.
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Is your destination not in the list? Have a look at other destinations in Guanacaste, in Costa Rica.
Is September the best time to visit Guanacaste?
In our view, September might not be the best time to travel to Guanacaste with often poor weather in Tamarindo.
Generally speaking, January, February, March and December provide perfect weather in Tamarindo. In contrast, May, June, August, September and October tend to have poor weather conditions.
Interested in more climate information?
We have much more information about the climate in Guanacaste.
Weather and climate has detailed information for every country in the world. Are you going to Costa Rica? Get detailed 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.