September weather forecastErmones, Greece
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Ermones, Greece, with an average temperature fluctuating between 25°C (77°F) and 21.4°C (70.5°F).Temperature
As September commences, the average high-temperature subtly reduces, transitioning from 28.5°C (83.3°F) in August to a still moderately hot 25°C (77°F). Ermones sees a gentle drop from the daily peak temperature in September, with an average low settling at a pleasant 21.4°C (70.5°F).Humidity
The average relative humidity in September is 65%.Rainfall
In Ermones, in September, during 10.7 rainfall days, 55mm (2.17") of precipitation is typically accumulated. Throughout the year, there are 147.4 rainfall days, and 888mm (34.96") of precipitation is accumulated.Snowfall
February through December are months without snowfall in Ermones.Sea temperature
In September, the average sea temperature is 24°C (75.2°F).Note: Swimming in 24°C (75.2°F) can be enjoyable or not, depending on how you feel about the cold and conditions such as sunshine, wind, and the day's temperature. FYI: Olympic standards dictate waters of 25°C (77°F) to 28°C (82.4°F).
Daylight
In Ermones, Greece, the average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 07:09 and sunset at 20:11. On the last day of the month, sunrise is at 07:36 and sunset at 19:24 EEST.
Sunshine
In September, the average sunshine is 9.5h.UV index
In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Caution! The reflection of sand and water significantly amplifies the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ermones, Greece
- Average high temperature in September: 25°C
The warmest month (with the highest average high temperature) is August (28.5°C).
The month with the lowest average high temperature is January (11.8°C).
- Average low temperature in September: 21.4°C
The month with the highest average low temperature is August (24.1°C).
The coldest month (with the lowest average low temperature) is January (8.9°C).
Average pressure in September
Ermones, Greece
- Average pressure in September: 1014.9mbar
The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is July (1012.2mbar).
Average wind speed in September
Ermones, Greece
- Average wind speed in September: 11.7km/h
The windiest month (with the highest average wind speed) is February (17.2km/h).
The calmest month (with the lowest average wind speed) is August (11.1km/h).
Average humidity in September
Ermones, Greece
- Average humidity in September: 65%
The month with the highest relative humidity is March (72%).
The month with the lowest relative humidity is August (63%).
Average rainfall in September
Ermones, Greece
- Average rainfall in September: 55mm
The wettest month (with the highest rainfall) is November (197mm).
The driest month (with the least rainfall) is August (9mm).
Average rainfall days in September
Ermones, Greece
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is January (16.8 days).
The month with the least rainy days is August (3.9 days).
Average snowfall in September
Ermones, Greece
- Average snowfall in September: 0mm
The month with the highest snowfall is January (2mm).
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
Ermones, 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 February, March, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in September
Ermones, 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 (14°C).
Average daylight in September /
Average sunshine in September
Ermones, Greece
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 30min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in September
Ermones, Greece
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is August (23.8 days).
The month with the least sunshine days is February (10.6 days).
Average UV index in September
Ermones, 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 February and December (UV index 3).
Average cloud cover in September
Ermones, Greece
- Average cloud cover in September: 16
The month with the most cloud cover is January (Cloud cover 38).
The months with the least cloud cover are July and August (Cloud cover 8).
Average visibility in September
Ermones, Greece
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (10km).
The month with the lowest visibility is November (9km).
