September weather forecastGratini, Greece
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Gratini, Greece, with temperature in the range of an average low of 16.1°C (61°F) and an average high of 26.1°C (79°F).Temperature
Onset of September witnesses a reduction in the average high-temperature, falling from a hot 31.7°C (89.1°F) in August to a moderately hot 26.1°C (79°F). Gratini registers a consistent average low-temperature of 16.1°C (61°F) during September.Humidity
The average relative humidity in September in Gratini, Greece, is 58%.Rainfall
In Gratini, during September, the rain falls for 7.5 days and regularly aggregates up to 18mm (0.71") of precipitation. Throughout the year, there are 125.2 rainfall days, and 480mm (18.9") of precipitation is accumulated.Snowfall
April through November are months without snowfall.Daylight
In Gratini, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 06:44 and sunset at 19:50. On the last day of September, in Gratini, sunrise is at 07:13 and sunset at 19:01 EEST.
Sunshine
The average sunshine in September is 10.6h.UV index
In Gratini, Greece, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 5 during September morphs into the following directions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gratini, Greece
- Average high temperature in September: 26.1°C
The warmest month (with the highest average high temperature) is August (31.7°C).
The month with the lowest average high temperature is January (7.7°C).
- Average low temperature in September: 16.1°C
The month with the highest average low temperature is August (19.8°C).
The coldest month (with the lowest average low temperature) is January (1.7°C).
Average pressure in September
Gratini, Greece
- Average pressure in September: 1015.5mbar
The month with the highest atmospheric pressure is December (1019.6mbar).
The month with the lowest atmospheric pressure is July (1012.1mbar).
Average wind speed in September
Gratini, Greece
- Average wind speed in September: 11.3km/h
The windiest month (with the highest average wind speed) is February (12.6km/h).
The calmest month (with the lowest average wind speed) is June (9.7km/h).
Average humidity in September
Gratini, Greece
- Average humidity in September: 58%
The months with the highest relative humidity are January and February (78%).
The month with the lowest relative humidity is August (49%).
Average rainfall in September
Gratini, Greece
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is January (77mm).
The driest month (with the least rainfall) is August (8mm).
Average rainfall days in September
Gratini, Greece
- Average rainfall days in September: 7.5 days
The month with the highest number of rainy days is March (14.7 days).
The month with the least rainy days is August (3.9 days).
Average snowfall in September
Gratini, Greece
- Average snowfall in September: 0mm
The months with the highest snowfall are January, February and March (12mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Gratini, Greece
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Gratini, Greece
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 10h and 36min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in September
Gratini, Greece
- Average sunshine days in September: 20.5 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is March (13.5 days).
Average UV index in September
Gratini, Greece
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Gratini, Greece
- Average cloud cover in September: 18
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in September
Gratini, Greece
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August, September, October and December (10km).
The months with the lowest visibility are January, February, March and November (9km).
