September weather forecastAiani, Greece
September
Weather in September
September, the first month of the autumn in Aiani, is also a moderately hot month, with temperature in the range of an average high of 23.3°C (73.9°F) and an average low of 12.6°C (54.7°F).Temperature
The shift from August to September corresponds with a decrease in the average high-temperature, down to a still moderately hot 23.3°C (73.9°F) from 28.4°C (83.1°F). September sees the temperature falling to a mean low of 12.6°C (54.7°F).Humidity
The average relative humidity in September in Aiani is 64%.Rainfall
In Aiani, Greece, during September, the rain falls for 12.2 days and regularly aggregates up to 49mm (1.93") of precipitation. Throughout the year, there are 161.4 rainfall days, and 643mm (25.31") of precipitation is accumulated.Snowfall
In Aiani, snow does not fall in May through October.Daylight
In Aiani, the average length of the day in September is 12h and 28min.On the first day of September in Aiani, sunrise is at 07:00 and sunset at 20:04. On the last day of the month, sunrise is at 07:28 and sunset at 19:16 EEST.
Sunshine
In September, the average sunshine in Aiani is 9.1h.UV index
In Aiani, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Aiani, Greece
- Average high temperature in September: 23.3°C
The warmest month (with the highest average high temperature) is August (28.4°C).
The month with the lowest average high temperature is January (5°C).
- Average low temperature in September: 12.6°C
The month with the highest average low temperature is August (15.9°C).
The coldest month (with the lowest average low temperature) is January (-1.4°C).
Average pressure in September
Aiani, Greece
- Average pressure in September: 1015.9mbar
The month with the highest atmospheric pressure is December (1019.4mbar).
The month with the lowest atmospheric pressure is July (1013.1mbar).
Average wind speed in September
Aiani, Greece
- Average wind speed in September: 6.1km/h
The windiest months (with the highest average wind speed) are February and March (7.6km/h).
The calmest month (with the lowest average wind speed) is August (5.8km/h).
Average humidity in September
Aiani, Greece
- Average humidity in September: 64%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (56%).
Average rainfall in September
Aiani, Greece
- Average rainfall in September: 49mm
The wettest month (with the highest rainfall) is June (73mm).
The driest month (with the least rainfall) is December (40mm).
Average rainfall days in September
Aiani, Greece
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is June (18.2 days).
The month with the least rainy days is January (10.3 days).
Average snowfall in September
Aiani, Greece
- Average snowfall in September: 0mm
The month with the highest snowfall is January (165mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Aiani, Greece
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Aiani, Greece
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 6min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Aiani, Greece
- Average sunshine days in September: 15.6 days
The months with the most sunshine days are July, August and December (17.4 days).
The month with the least sunshine days is June (9.7 days).
Average UV index in September
Aiani, Greece
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Aiani, Greece
- Average cloud cover in September: 25
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in September
Aiani, Greece
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, November and December (8km).
