Quepos Weather in September

What's the weather like in Quepos (Puntarenas) in September 2023?

The climate in Quepos during September can be summarized as hot, humid and very wet.

September is in the fall / autumn in Quepos and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a steamy 29°C (84°F), whilst at night 23°C (72°F) is normal.

Quepos weather averages (imperial / metric)
Daytime temperature 29°C 84.1°F
Nightly temperature 22.5°C 72.4°F
Average temperature 25.7°C 78.3°F
Daily sunshine 5.7 hrs
Avg rainfall 519 mm 20.4 ins
Rainy days 22 days
Sea temperature 28.6°C 83.5°F
Humidity 88%
Windspeed 7.2kph 5 mph

On average September is the 2nd wettest month of the year in Quepos with around 519mm 20.4 inches of rain making it a very wet time to visit. This rainfall is typically spread over 22 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.7 hours of sunshine per day.

September temperatures in Quepos

Quepos average temperature in September

September rainfall

Quepos average rain in September

September hourly sunshine

Quepos average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Quepos in September 2023.

Other monthly averages

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Quepos weather stats

Quepos weather statistics
Hottest month: April 31.4°C 88.5°F
Driest month: February 28mm 1.1ins
Sunniest month: March 7.9hrs
Coldest month: November 28.3°C 82.9°F
Wettest month: October 601mm 23.7ins
Map showing location of Quepos (9.42357, -84.16522)

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