Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
September verdict
Corcovado National Park, Costa Rica in September
Weather score51Mixed
Mixed for holiday weather
Average highs sit around 29°C, giving warm days by monthly-average standards. Sunshine averages 5.2h per day, enough for a balanced month. Rainfall averages 444mm, so showers are a real planning factor.
September weather
Monthly averages
Temp
29°C
Rain
444mm
Sun
5.2h
Sea
28°C
Weather score
51
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 444mm, so showers are a real planning factor.
Some sun
Sunshine averages 5.2h per day, enough for a balanced month.
Warm sea
Sea temperatures average 28°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Corcovado National Park, Costa Rica with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September29°C average high
September is cooler than the yearly average, which can make sightseeing feel gentler than in hotter months.
Warmest monthsFebruary to May
This stretch sets the upper range for average daytime heat.
Rain
September444mm average rain
September is wetter than Corcovado National Park's yearly average, so flexible plans matter more.
Driest monthsJanuary to April and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September5.2 hours average sun
September is one of Corcovado National Park's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJanuary to April
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September28°C average sea
September is close to Corcovado National Park's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJanuary to September
Sea temperatures are usually near 29°C in this stretch, so swimming comfort is at its strongest.
Weather score
September51 weather score
September is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJanuary to March
These months have the strongest weather score in the monthly averages.
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