September weather forecastKorthio, Greece
September
Weather in September
The first month of the autumn, September, is still a warm month in Korthio, Greece, with an average temperature ranging between max 24.2°C (75.6°F) and min 22.8°C (73°F).Temperature
The shift from August to September is characterized by an average high-temperature of a still warm 24.2°C (75.6°F), not significantly different from the 26.1°C (79°F) of August. Korthio documents a consistent average low-temperature of 22.8°C (73°F) at night during September.Humidity
In September, the average relative humidity is 73%.Rainfall
In Korthio, during September, the rain falls for 4.4 days and regularly aggregates up to 9mm (0.35") of precipitation. Throughout the year, there are 93 rainfall days, and 255mm (10.04") of precipitation is accumulated.Daylight
In Korthio, the average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 06:50 and sunset at 19:49. On the last day of the month, sunrise is at 07:15 and sunset at 19:04 EEST.
Sunshine
In September, the average sunshine is 10.7h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: An average maximum UV index of 6 in September leads to these recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Korthio, Greece
- Average high temperature in September: 24.2°C
The warmest month (with the highest average high temperature) is August (26.1°C).
The month with the lowest average high temperature is January (13.8°C).
- Average low temperature in September: 22.8°C
The month with the highest average low temperature is August (24.4°C).
The coldest month (with the lowest average low temperature) is January (11.9°C).
Average pressure in September
Korthio, Greece
- Average pressure in September: 1013mbar
The month with the highest atmospheric pressure is December (1017.8mbar).
The month with the lowest atmospheric pressure is July (1009.2mbar).
Average wind speed in September
Korthio, Greece
- Average wind speed in September: 24.3km/h
The windiest month (with the highest average wind speed) is January (30km/h).
The calmest month (with the lowest average wind speed) is May (18.8km/h).
Average humidity in September
Korthio, Greece
- Average humidity in September: 73%
The month with the highest relative humidity is August (76%).
The months with the lowest relative humidity are January and December (71%).
Average rainfall in September
Korthio, Greece
- Average rainfall in September: 9mm
The wettest month (with the highest rainfall) is January (53mm).
The driest months (with the least rainfall) are July and August (1mm).
Average rainfall days in September
Korthio, Greece
- Average rainfall days in September: 4.4 days
The month with the highest number of rainy days is January (14.9 days).
The month with the least rainy days is August (0.8 days).
Average daylight in September /
Average sunshine in September
Korthio, Greece
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 10h and 42min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in September
Korthio, Greece
- Average sunshine days in September: 24.2 days
The month with the most sunshine days is July (30.1 days).
The month with the least sunshine days is January (12.4 days).
Average UV index in September
Korthio, Greece
- Average UV index in September: 6
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Korthio, Greece
- Average cloud cover in September: 10
The month with the most cloud cover is January (Cloud cover 41).
The months with the least cloud cover are July and August (Cloud cover 3).
Average visibility in September
Korthio, Greece
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





