September weather forecastAstras, Greece
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Astras, Greece, with an average temperature ranging between max 27.7°C (81.9°F) and min 19°C (66.2°F).Temperature
Transition into September subtly marks a drop in the average high-temperature, moderately moving from a tropical 32.3°C (90.1°F) in August to a warm 27.7°C (81.9°F). The average temperature drops to an enjoyable 19°C (66.2°F) during the night in the month of September.Heat index
For September, the heat index is calculated to be 29°C (84.2°F). With constant exposure and activity, a state of weariness might ensue, leading to potential heat cramps.The heat index's values are generally associated with conditions in shade and light breezes. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. 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 children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Humidity
In Astras, the average relative humidity in September is 63%.Rainfall
In September, the rain falls for 7.1 days. Throughout September, 16mm (0.63") of precipitation is accumulated. Throughout the year, there are 104.3 rainfall days, and 310mm (12.2") of precipitation is accumulated.Snowfall
In Astras, snow does not fall in February through December.Daylight
In September, the average length of the day in Astras is 12h and 26min.On the first day of September in Astras, sunrise is at 07:02 and sunset at 20:02. On the last day of the month, sunrise is at 07:27 and sunset at 19:17 EEST.
Sunshine
In September, the average sunshine in Astras is 9.6h.UV index
In Astras, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 6 in September translates into this advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Astras, 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
Astras, 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
Astras, 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
Astras, 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
Astras, 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
Astras, 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
Astras, 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
Astras, 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
Astras, 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
Astras, 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
Astras, 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
Astras, 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
Astras, 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).





