La Fortuna Weather in September
What's the weather like in La Fortuna (Alajuela) in September 2024?
The climate in La Fortuna during September can be summarized as hot, humid and very wet.
September is in the fall / autumn in La Fortuna and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a steamy 29°C (84°F), whilst at night 22°C (71°F) is normal.
| Daytime temperature | 28.8°C 83.8°F |
|---|---|
| Nightly temperature | 21.9°C 71.3°F |
| Average temperature | 25.3°C 77.5°F |
| Daily sunshine | 5.6 hrs |
| Avg rainfall | 413 mm 16.2 ins |
| Rainy days | 23 days |
| Sea temperature | 28.8°C 83.8°F |
| Humidity | 88% |
| Windspeed | 7.6kph 5 mph |
On average September is the 4th wettest month of the year in La Fortuna with around 413mm 16.2 inches of rain making it a very wet time to visit. This rainfall is typically spread over 23 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.6 hours of sunshine per day.
September temperatures in La Fortuna
September rainfall
September hourly sunshine
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 La Fortuna in September 2024.
Other monthly averages
Best places to visit in September
La Fortuna weather stats
| Hottest month: | April | 31.8°C 89.2°F |
|---|---|---|
| Driest month: | March | 81mm 3.2ins |
| Sunniest month: | March | 7.3hrs |
| Coldest month: | November | 28.2°C 82.8°F |
| Wettest month: | July | 462mm 18.2ins |
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