September weather forecastPiana, Greece
September
Weather in September
September, the first month of the autumn in Piana, is also a moderately hot month, with an average temperature varying between 24.4°C (75.9°F) and 15.1°C (59.2°F).Temperature
The average high-temperature shows a slight dip in September, from August's moderately hot 28.9°C (84°F) to a still warm 24.4°C (75.9°F). Throughout September nights, Piana registers an average low-temperature of 15.1°C (59.2°F).Humidity
In September, the average relative humidity is 64%.Rainfall
In September, the rain falls for 13.7 days. Throughout September, 48mm (1.89") of precipitation is accumulated. Throughout the year, there are 155.4 rainfall days, and 681mm (26.81") of precipitation is accumulated.Snowfall
In Piana, snow does not fall in May through November.Daylight
In September, the average length of the day is 12h and 25min.On the first day of September, sunrise is at 07:01 and sunset at 20:00. On the last day of the month, sunrise is at 07:26 and sunset at 19:15 EEST.
Sunshine
In Piana, the average sunshine in September is 9.2h.UV index
In Piana, Greece, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum daily UV index of 5 during September morphs into the following directions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Piana, Greece
- Average high temperature in September: 24.4°C
The warmest months (with the highest average high temperature) are July and August (28.9°C).
The month with the lowest average high temperature is January (8.2°C).
- Average low temperature in September: 15.1°C
The month with the highest average low temperature is August (17.6°C).
The coldest month (with the lowest average low temperature) is January (1.9°C).
Average pressure in September
Piana, Greece
- Average pressure in September: 1014.8mbar
The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is July (1011.7mbar).
Average wind speed in September
Piana, Greece
- Average wind speed in September: 7.1km/h
The windiest month (with the highest average wind speed) is February (8.8km/h).
The calmest month (with the lowest average wind speed) is September (7.1km/h).
Average humidity in September
Piana, Greece
- Average humidity in September: 64%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (53%).
Average rainfall in September
Piana, Greece
- Average rainfall in September: 48mm
The wettest month (with the highest rainfall) is January (89mm).
The driest month (with the least rainfall) is August (26mm).
Average rainfall days in September
Piana, Greece
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is August (8.2 days).
Average snowfall in September
Piana, Greece
- Average snowfall in September: 0mm
The month with the highest snowfall is January (108mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Piana, Greece
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Piana, 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: 9h and 12min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in September
Piana, Greece
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is August (20.5 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in September
Piana, Greece
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Piana, Greece
- Average cloud cover in September: 20
The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in September
Piana, Greece
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August, September and October (10km).
The month with the lowest visibility is January (8km).





