The climate in Delphi during September can be summarized as warm and reasonably dry.
September is in the fall / autumn in Delphi and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 26°C (78°F), whilst at night 12°C (53°F) is normal.
| Daytime temperature | 25.5°C 77.8°F |
|---|---|
| Nightly temperature | 11.8°C 53.2°F |
| Average temperature | 18.6°C 65.5°F |
| Daily sunshine | 8.6 hrs |
| Avg rainfall | 75 mm 3 ins |
| Rainy days | 9 days |
| Sea temperature | 20.9°C 69.6°F |
| Humidity | 73% |
| Windspeed | 14kph 9 mph |
On average September is the 6th wettest month of the year in Delphi 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 8.6 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 Delphi in September 2025.
Best places to visit in September
| Hottest month: | July | 29.5°C 85.1°F |
|---|---|---|
| Driest month: | February | 46mm 1.8ins |
| Sunniest month: | July | 10.9hrs |
| Coldest month: | January | 0.1°C 32.2°F |
| Wettest month: | August | 100mm 3.9ins |