The climate in Opio during September can be summarized as mild and reasonably dry.
September is in the fall / autumn in Opio and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 19°C (66°F), whilst at night 12°C (54°F) is normal.
Daytime temperature | 18.8°C 65.8°F |
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Nightly temperature | 12.2°C 54°F |
Average temperature | 15.5°C 59.9°F |
Daily sunshine | 7.7 hrs |
Avg rainfall | 75 mm 3 ins |
Rainy days | 9 days |
Sea temperature | 21.5°C 70.6°F |
Humidity | 74% |
Windspeed | 13.7kph 9 mph |
On average September is the 5th driest month of the year in Opio with around 75mm 3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.7 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 Opio in September 2025.
Best places to visit in September
Hottest month: | July | 21.9°C 71.4°F |
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Driest month: | July | 37mm 1.5ins |
Sunniest month: | July | 10.7hrs |
Coldest month: | January | 5.9°C 42.6°F |
Wettest month: | November | 107mm 4.2ins |