September weather forecastStoupa, Greece
September
Weather in September
September signals the outset of autumn in Stoupa, though the weather retains a distinct summer influence for the majority of the month. Conditions begin to change from the peak summer atmosphere, thanks to a slight dip in temperatures and shortening daylight hours. However, the month's rainfall rises to 31mm (1.22"), indicating the start of increasingly cooler and wetter conditions. Enhanced wind speed combines with the soaring humidity to create a refreshing ambiance. As September makes way for October, the drop in sea temperature and daylight hours serves as a hallmark for the vibrant autumn season.Temperature
With September's onset, the weather in Stoupa reveals a slight temperature decrease, transitioning from a tropical 30.2°C (86.4°F) in August to a moderately hot 26.4°C (79.5°F). Stoupa experiences a nighttime temperature average of 20.2°C (68.4°F) during September.Humidity
In Stoupa, the average relative humidity in September is 64%.Rainfall
In Stoupa, in September, it is raining for 10.5 days, with typically 31mm (1.22") of accumulated precipitation. In Stoupa, Greece, during the entire year, the rain falls for 127.6 days and collects up to 401mm (15.79") of precipitation.Sea temperature
In September, the average sea temperature in Stoupa is 24°C (75.2°F).Note: The cold tolerance of an individual, along with sunshine, wind, and the temperature of the environment, affects the enjoyment of swimming in 24°C (75.2°F) waters. (Olympic swimmers participate in waters ranging from 25°C (77°F) to 28°C (82.4°F).)
Daylight
In Stoupa, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 07:02 and sunset at 19:59. On the last day of September, in Stoupa, Greece, sunrise is at 07:25 and sunset at 19:15 EEST.
Sunshine
The average sunshine in September is 9.6h.UV index
In Stoupa, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, a regular UV index of 6 translates into these guidelines:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. 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. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Warning! Reflective surfaces like sand and water amplify the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Stoupa, Greece
- Average high temperature in September: 26.4°C
The warmest month (with the highest average high temperature) is August (30.2°C).
The month with the lowest average high temperature is January (12.3°C).
- Average low temperature in September: 20.2°C
The month with the highest average low temperature is August (23°C).
The coldest month (with the lowest average low temperature) is January (8°C).
Average pressure in September
Stoupa, Greece
- Average pressure in September: 1014.5mbar
The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is July (1011.4mbar).
Average wind speed in September
Stoupa, Greece
- Average wind speed in September: 10.8km/h
The windiest month (with the highest average wind speed) is February (15.2km/h).
The calmest month (with the lowest average wind speed) is August (9.3km/h).
Average humidity in September
Stoupa, Greece
- Average humidity in September: 64%
The month with the highest relative humidity is January (76%).
The months with the lowest relative humidity are July and August (57%).
Average rainfall in September
Stoupa, Greece
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is January (58mm).
The driest month (with the least rainfall) is July (12mm).
Average rainfall days in September
Stoupa, Greece
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is January (14.2 days).
The month with the least rainy days is July (5.6 days).
Average sea temperature in September
Stoupa, Greece
- Average sea temperature in September: 24°C
The best month for swimming (with the highest average sea temperature) is August (25°C).
The coldest months (with the lowest average sea temperature) are February and March (15°C).
Average daylight in September /
Average sunshine in September
Stoupa, Greece
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- 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 12min).
Average sunshine days in September
Stoupa, Greece
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is July (23.8 days).
The month with the least sunshine days is February (12.6 days).
Average UV index in September
Stoupa, 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 and December (UV index 3).
Average cloud cover in September
Stoupa, Greece
- Average cloud cover in September: 14
The month with the most cloud cover is January (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in September
Stoupa, 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).
