September weather forecastVassilias, Greece
September
Weather in September
September, the first month of the autumn in Vassilias, is still a warm month, with an average temperature varying between 22.1°C (71.8°F) and 24.3°C (75.7°F).Temperature
Vassilias, Greece, experiences a minor change to a still warm 24.3°C (75.7°F) in average high-temperature during September, closely reflecting August. A mean low-temperature of 22.1°C (71.8°F) is a distinguishing feature of September, indicating a slight dip from daytime highs.Humidity
The months with the lowest humidity in Vassilias are July through September, with an average relative humidity of 66%.Rainfall
In Vassilias, during September, the rain falls for 10.8 days and regularly aggregates up to 49mm (1.93") of precipitation. In Vassilias, during the entire year, the rain falls for 133.4 days and collects up to 511mm (20.12") of precipitation.Snowfall
In Vassilias, Greece, snow does not fall in February through December.Sea temperature
In September, the average sea temperature in Vassilias is 23°C (73.4°F).Note: Swimming in 23°C (73.4°F) water can be enjoyable based on one's cold tolerance and conditions like sunshine, wind, and ambient temperature. (Olympic swimmers compete in waters between 25°C (77°F) and 28°C (82.4°F).)
Daylight
The average length of the day in September in Vassilias is 12h and 26min.On the first day of the month, sunrise is at 06:55 and sunset at 19:56. On the last day of September, sunrise is at 07:21 and sunset at 19:10 EEST.
Sunshine
In September, the average sunshine is 9.5h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high daily UV index of 6 during September translates into the following directions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Caution! Sand and water surfaces escalate the UV intensity from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Vassilias, Greece
- Average high temperature in September: 24.3°C
The warmest month (with the highest average high temperature) is August (27°C).
The month with the lowest average high temperature is January (11.8°C).
- Average low temperature in September: 22.1°C
The month with the highest average low temperature is August (24.8°C).
The coldest month (with the lowest average low temperature) is January (9.3°C).
Average pressure in September
Vassilias, Greece
- Average pressure in September: 1015mbar
The month with the highest atmospheric pressure is December (1018.7mbar).
The month with the lowest atmospheric pressure is July (1011.8mbar).
Average wind speed in September
Vassilias, Greece
- Average wind speed in September: 15.5km/h
The windiest month (with the highest average wind speed) is February (20.7km/h).
The calmest months (with the lowest average wind speed) are June and July (13.1km/h).
Average humidity in September
Vassilias, Greece
- Average humidity in September: 66%
The months with the highest relative humidity are January, February and November (71%).
The months with the lowest relative humidity are July, August and September (66%).
Average rainfall in September
Vassilias, Greece
- Average rainfall in September: 49mm
The wettest month (with the highest rainfall) is February (62mm).
The driest month (with the least rainfall) is August (17mm).
Average rainfall days in September
Vassilias, Greece
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is January (14.3 days).
The month with the least rainy days is July (6.6 days).
Average snowfall in September
Vassilias, 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
Vassilias, 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
Vassilias, Greece
- Average sea temperature in September: 23°C
The best months for swimming (with the highest average sea temperature) are July and August (24°C).
The coldest months (with the lowest average sea temperature) are January, February and March (14°C).
Average daylight in September /
Average sunshine in September
Vassilias, 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 30min).
- Average sunshine in September: 9h and 30min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in September
Vassilias, Greece
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is July (22.5 days).
The month with the least sunshine days is February (13.5 days).
Average UV index in September
Vassilias, 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
Vassilias, Greece
- Average cloud cover in September: 20
The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in September
Vassilias, 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).
