The climate in Kárystos during September can be summarized as warm and dry.
September is in the fall / autumn in Kárystos and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 25°C (77°F), whilst at night 17°C (63°F) is normal.
Daytime temperature | 24.9°C 76.7°F |
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Nightly temperature | 17.2°C 62.9°F |
Average temperature | 21°C 69.8°F |
Daily sunshine | 10.8 hrs |
Avg rainfall | 19 mm 0.8 ins |
Rainy days | 2 days |
Sea temperature | 23.5°C 74.3°F |
Humidity | 62% |
Windspeed | 10.1kph 6 mph |
On average September is the 4th driest month of the year in Kárystos with around 19mm 0.8 inches of rain making it a dry time to visit. This rainfall is typically spread over 2 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.8 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 Kárystos in September 2025.
Best places to visit in September
Hottest month: | July | 27.9°C 82.2°F |
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Driest month: | August | 8mm 0.3ins |
Sunniest month: | July | 13.9hrs |
Coldest month: | January | 10.7°C 51.3°F |
Wettest month: | December | 99mm 3.9ins |