September weather forecastDafni, Greece
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Dafni, Greece, with an average temperature varying between 20.9°C (69.6°F) and 27°C (80.6°F).Temperature
As September commences, the average high-temperature subtly reduces, transitioning from a tropical 31°C (87.8°F) in August to a moderately hot 27°C (80.6°F). Throughout the month of September, the average temperature dips to a pleasant 20.9°C (69.6°F) at night.Heat index
The heat index value during September is calculated to be 28°C (82.4°F). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.Understanding the heat index involves considering values for shaded locales with light wind. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Humidity
The average relative humidity in September is 58%.Rainfall
In September, in Dafni, the rain falls for 7.4 days. Throughout September, 19mm (0.75") of precipitation is accumulated. In Dafni, during the entire year, the rain falls for 98.9 days and collects up to 348mm (13.7") of precipitation.Snowfall
April through December are months without snowfall.Daylight
In September, the average length of the day in Dafni is 12h and 26min.On the first day of September, sunrise is at 06:55 and sunset at 19:54. On the last day of the month, sunrise is at 07:20 and sunset at 19:09 EEST.
Sunshine
The average sunshine in September in Dafni is 9.9h.UV index
In Dafni, Greece, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, a daily UV index of 6 turns into the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dafni, Greece
- Average high temperature in September: 27°C
The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (12.1°C).
- Average low temperature in September: 20.9°C
The month with the highest average low temperature is August (23.8°C).
The coldest month (with the lowest average low temperature) is January (7.3°C).
Average pressure in September
Dafni, Greece
- Average pressure in September: 1014.3mbar
The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is July (1011.1mbar).
Average wind speed in September
Dafni, Greece
- Average wind speed in September: 13.2km/h
The windiest month (with the highest average wind speed) is August (16.3km/h).
The calmest month (with the lowest average wind speed) is May (11.6km/h).
Average humidity in September
Dafni, Greece
- Average humidity in September: 58%
The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is August (50%).
Average rainfall in September
Dafni, Greece
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is December (53mm).
The driest month (with the least rainfall) is August (4mm).
Average rainfall days in September
Dafni, Greece
- Average rainfall days in September: 7.4 days
The month with the highest number of rainy days is January (11.3 days).
The month with the least rainy days is August (1.8 days).
Average snowfall in September
Dafni, Greece
- Average snowfall in September: 0mm
The month with the highest snowfall is January (9mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Dafni, Greece
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Dafni, 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 54min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in September
Dafni, Greece
- Average sunshine days in September: 21.3 days
The month with the most sunshine days is August (28.5 days).
The month with the least sunshine days is February (14.1 days).
Average UV index in September
Dafni, Greece
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Dafni, Greece
- Average cloud cover in September: 15
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in September
Dafni, 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).
