The climate in Inca during September can be summarized as warm, humid and reasonably dry.
September is in the fall / autumn in Inca and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a muggy 26°C (78°F), whilst at night 17°C (62°F) is normal.
| Daytime temperature | 25.6°C 78°F |
|---|---|
| Nightly temperature | 16.5°C 61.6°F |
| Average temperature | 21°C 69.8°F |
| Daily sunshine | 8.3 hrs |
| Avg rainfall | 65 mm 2.6 ins |
| Rainy days | 8 days |
| Sea temperature | 25°C 77°F |
| Humidity | 73% |
| Windspeed | 10.1kph 6 mph |
On average September is the 5th wettest month of the year in Inca with around 65mm 2.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.3 hours of sunshine per day.
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 Inca in September 2025.
Best places to visit in September
| Hottest month: | August | 27.7°C 81.9°F |
|---|---|---|
| Driest month: | July | 14mm 0.6ins |
| Sunniest month: | July | 11.3hrs |
| Coldest month: | January | 12.7°C 54.9°F |
| Wettest month: | October | 101mm 4ins |