September weather forecastSkiathos, Greece
September
Weather in September
September in Skiathos heralds the arrival of autumn with temperatures gradually coming down from the summer highs. Despite being fall, September experiences an increase in rainfall to 49mm (1.93") from the previous month’s 17mm (0.67"). The city starts transitioning into quieter times as tourist inflow slows down. However, the still warm weather makes for comfortable sightseeing around Skiathos’ attractions.Temperature
In September, Skiathos experiences a minor shift in meteorological conditions with average high-temperatures marked at a still warm 24.3°C (75.7°F), closely mirroring the climate in August. In September, a low-temperature average of 22.1°C (71.8°F) is characteristic of Skiathos, marking a minor shift from daytime temperatures.Humidity
July through September, with an average relative humidity of 66%, are the least humid months.Rainfall
In September, in Skiathos, the rain falls for 10.8 days. Throughout September, 49mm (1.93") of precipitation is accumulated. In Skiathos, during the entire year, the rain falls for 133.4 days and collects up to 511mm (20.12") of precipitation.Snowfall
In Skiathos, snow does not fall in February through December.Sea temperature
In Skiathos, Greece, the average seawater temperature in September is 24.6°C (76.3°F).Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 24.6°C (76.3°F) water. (FYI: The Olympic swimming competition requires a water temperature between 25°C (77°F) and 28°C (82.4°F).)
Daylight
In Skiathos, the average length of the day in September is 12h and 26min.On the first day of September in Skiathos, sunrise is at 06:55 and sunset at 19:56. On the last day of the month, sunrise is at 07:21 and sunset at 19:10 EEST.
Sunshine
In September, the average sunshine is 9.5h.UV index
In September, the average daily maximum UV index in Skiathos is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Opt for tightly woven and loose clothing to enhance protection from the Sun. Notice! The Sun's UV exposure elevates with sand and water reflections.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Skiathos, 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
Skiathos, 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
Skiathos, 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
Skiathos, 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
Skiathos, 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
Skiathos, 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
Skiathos, 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
Skiathos, 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
Skiathos, Greece
- Average sea temperature in September: 24.6°C
The best month for swimming (with the highest average sea temperature) is August (26.3°C).
The coldest month (with the lowest average sea temperature) is March (14.2°C).
Average daylight in September /
Average sunshine in September
Skiathos, 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
Skiathos, 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
Skiathos, 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
Skiathos, 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
Skiathos, 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).
