September weather forecastNikiana, Greece
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Nikiana, Greece, with an average temperature ranging between max 26.1°C (79°F) and min 22.1°C (71.8°F).The perfect water temperature of 25°C (77°F) with 3mm (0.12") of accumulated rainfall and only 3.5 rainfall days, makes September a great period for swimming and other water activities.
Temperature
In September, the meteorological conditions in Nikiana, Greece, change slightly, with the average high-temperature moving from 29.5°C (85.1°F) in August to a still warm 26.1°C (79°F). Nikiana's average temperature throughout the nights in September exhibits a minor decrease from daytime highs, stabilizing at an agreeable 22.1°C (71.8°F).Humidity
In September, the average relative humidity is 64%.Rainfall
In Nikiana, in September, it is raining for 3.5 days, with typically 3mm (0.12") of accumulated precipitation. In Nikiana, Greece, during the entire year, the rain falls for 65.9 days and collects up to 145mm (5.71") of precipitation.Sea temperature
In September, the average sea temperature in Nikiana is 25°C (77°F).Note: Water surface temperatures from 25°C (77°F) to 29°C (84.2°F) are considered optimal and extremely delightful for long-lasting pleasure in any water activity.
Daylight
In Nikiana, Greece, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 07:06 and sunset at 20:07. On the last day of September, sunrise is at 07:32 and sunset at 19:21 EEST.
Sunshine
In Nikiana, Greece, the average sunshine in September is 9.7h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum high UV index of 6 in September translates into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. 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
Nikiana, Greece
- Average high temperature in September: 26.1°C
The warmest month (with the highest average high temperature) is August (29.5°C).
The month with the lowest average high temperature is January (12.7°C).
- Average low temperature in September: 22.1°C
The month with the highest average low temperature is August (25°C).
The coldest month (with the lowest average low temperature) is January (9.7°C).
Average pressure in September
Nikiana, Greece
- Average pressure in September: 1014.9mbar
The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is July (1012.1mbar).
Average wind speed in September
Nikiana, Greece
- Average wind speed in September: 10.6km/h
The windiest month (with the highest average wind speed) is February (15.4km/h).
The calmest month (with the lowest average wind speed) is August (10km/h).
Average humidity in September
Nikiana, Greece
- Average humidity in September: 64%
The months with the highest relative humidity are March and April (71%).
The month with the lowest relative humidity is August (63%).
Average rainfall in September
Nikiana, Greece
- Average rainfall in September: 3mm
The wettest month (with the highest rainfall) is November (35mm).
The driest month (with the least rainfall) is August (1mm).
Average rainfall days in September
Nikiana, Greece
- Average rainfall days in September: 3.5 days
The month with the highest number of rainy days is January (8.7 days).
The month with the least rainy days is August (0.8 days).
Average sea temperature in September
Nikiana, Greece
- Average sea temperature in September: 25°C
The best month for swimming (with the highest average sea temperature) is August (26°C).
The coldest months (with the lowest average sea temperature) are February and March (15°C).
Average daylight in September /
Average sunshine in September
Nikiana, Greece
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 42min
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 48min).
Average sunshine days in September
Nikiana, Greece
- Average sunshine days in September: 24.6 days
The month with the most sunshine days is August (29.1 days).
The month with the least sunshine days is February (18.9 days).
Average UV index in September
Nikiana, Greece
- Average UV index in September: 6
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Nikiana, Greece
- Average cloud cover in September: 14
The month with the most cloud cover is January (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in September
Nikiana, 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).
