September weather forecastArgostolion, Greece
September
Weather in September
September, the first month of the autumn in Argostolion, is also a moderately hot month, with an average temperature varying between 25.4°C (77.7°F) and 23.8°C (74.8°F).Temperature
In September, Argostolion experiences a minor shift in meteorological conditions with average high-temperatures marked at a still warm 25.4°C (77.7°F), closely mirroring the climate in August. The month of September shows a minor drop from daytime temperatures, generally recording a low average of 23.8°C (74.8°F).Humidity
The months with the lowest humidity are September and December, with an average relative humidity of 68%.Rainfall
In Argostolion, in September, during 10.8 rainfall days, 56mm (2.2") of precipitation is typically accumulated. Throughout the year, in Argostolion, there are 130.6 rainfall days, and 696mm (27.4") of precipitation is accumulated.Sea temperature
In Argostolion, the average seawater temperature in September is 25.7°C (78.3°F).Note: For swimming, diving, or other water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) provide the most enjoyable experience for extended periods without discomfort.
Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 07:08 and sunset at 20:07. On the last day of September, sunrise is at 07:33 and sunset at 19:22 EEST.
Sunshine
In Argostolion, the average sunshine in September is 9.6h.UV index
In Argostolion, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 6 during September translates into the following directions:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Stay sun-safe with clothing that is both closely woven and worn loosely. Notice! The reflection of water and sand increases the UV radiation significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Argostolion, Greece
- Average high temperature in September: 25.4°C
The warmest month (with the highest average high temperature) is August (27.9°C).
The month with the lowest average high temperature is January (13.9°C).
- Average low temperature in September: 23.8°C
The month with the highest average low temperature is August (25.8°C).
The coldest month (with the lowest average low temperature) is January (12°C).
Average pressure in September
Argostolion, Greece
- Average pressure in September: 1014.8mbar
The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is July (1011.9mbar).
Average wind speed in September
Argostolion, Greece
- Average wind speed in September: 14.4km/h
The windiest month (with the highest average wind speed) is January (21.4km/h).
The calmest month (with the lowest average wind speed) is August (14km/h).
Average humidity in September
Argostolion, Greece
- Average humidity in September: 68%
The month with the highest relative humidity is April (74%).
The months with the lowest relative humidity are September and December (68%).
Average rainfall in September
Argostolion, Greece
- Average rainfall in September: 56mm
The wettest month (with the highest rainfall) is November (119mm).
The driest month (with the least rainfall) is August (3mm).
Average rainfall days in September
Argostolion, Greece
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is January (17.4 days).
The month with the least rainy days is August (2.1 days).
Average sea temperature in September
Argostolion, Greece
- Average sea temperature in September: 25.7°C
The best month for swimming (with the highest average sea temperature) is August (25.9°C).
The coldest month (with the lowest average sea temperature) is February (15.4°C).
Average daylight in September /
Average sunshine in September
Argostolion, Greece
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 9h and 36min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Argostolion, Greece
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is August (27.1 days).
The month with the least sunshine days is January (11.2 days).
Average UV index in September
Argostolion, Greece
- Average UV index in September: 6
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 4).
Average cloud cover in September
Argostolion, Greece
- Average cloud cover in September: 15
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 6).
Average visibility in September
Argostolion, 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).





