September weather forecastOleni, Greece
September
Weather in September
The first month of the autumn, September, is still a warm month in Oleni, Greece, with an average temperature varying between 19°C (66.2°F) and 27.7°C (81.9°F).Temperature
The onset of September entails a subtle temperature shift, as the average high-temperature eases from a tropical 32.3°C (90.1°F) in August to a moderately hot 27.7°C (81.9°F). During the nights in September, the temperature averages to a comfortable 19°C (66.2°F).Heat index
In September, the heat index is calculated to be 29°C (84.2°F). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.It is crucial to understand that heat index figures are for shade and gentle wind conditions. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Humidity
The average relative humidity in September is 63%.Rainfall
In Oleni, Greece, during September, the rain falls for 7.1 days and regularly aggregates up to 16mm (0.63") of precipitation. In Oleni, during the entire year, the rain falls for 104.3 days and collects up to 310mm (12.2") of precipitation.Snowfall
February through December are months without snowfall.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September, sunrise is at 07:04 and sunset at 20:03. On the last day of the month, sunrise is at 07:28 and sunset at 19:18 EEST.
Sunshine
In September, the average sunshine is 9.6h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A maximum daily UV index of 6 during September morphs into the following directions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Oleni, Greece
- Average high temperature in September: 27.7°C
The warmest month (with the highest average high temperature) is August (32.3°C).
The month with the lowest average high temperature is January (12.3°C).
- Average low temperature in September: 19°C
The month with the highest average low temperature is August (21.6°C).
The coldest month (with the lowest average low temperature) is January (6.3°C).
Average pressure in September
Oleni, 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 (1011.8mbar).
Average wind speed in September
Oleni, Greece
- Average wind speed in September: 8.8km/h
The windiest month (with the highest average wind speed) is February (11.4km/h).
The calmest month (with the lowest average wind speed) is August (8.5km/h).
Average humidity in September
Oleni, Greece
- Average humidity in September: 63%
The months with the highest relative humidity are January and February (76%).
The month with the lowest relative humidity is August (54%).
Average rainfall in September
Oleni, Greece
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is January (60mm).
The driest month (with the least rainfall) is August (3mm).
Average rainfall days in September
Oleni, Greece
- Average rainfall days in September: 7.1 days
The month with the highest number of rainy days is January (13.9 days).
The month with the least rainy days is August (2.1 days).
Average snowfall in September
Oleni, Greece
- Average snowfall in September: 0mm
The month with the highest snowfall is January (5mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Oleni, Greece
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Oleni, 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 36min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).
Average sunshine days in September
Oleni, Greece
- Average sunshine days in September: 19.7 days
The month with the most sunshine days is August (26.9 days).
The month with the least sunshine days is January (14.7 days).
Average UV index in September
Oleni, 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 3).
Average cloud cover in September
Oleni, Greece
- Average cloud cover in September: 14
The month with the most cloud cover is January (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in September
Oleni, 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).
