September weather forecastArna, Greece
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Arna, Greece, with an average temperature fluctuating between 20.2°C (68.4°F) and 26.4°C (79.5°F).Temperature
September brings a minor shift in the average high-temperature, adjusting from a tropical 30.2°C (86.4°F) in August to a moderately hot 26.4°C (79.5°F). During September, Arna records a consistent average nighttime temperature of 20.2°C (68.4°F).Humidity
In September, the average relative humidity in Arna is 64%.Rainfall
In Arna, Greece, in September, it is raining for 10.5 days, with typically 31mm (1.22") of accumulated precipitation. Throughout the year, there are 127.6 rainfall days, and 401mm (15.79") of precipitation is accumulated.Daylight
In Arna, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 07:01 and sunset at 19:58. On the last day of September, in Arna, sunrise is at 07:25 and sunset at 19:15 EEST.
Sunshine
In September, the average sunshine in Arna is 9.6h.UV index
In Arna, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: A maximum daily UV index of 6 during September morphs into the following directions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. 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. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Arna, 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
Arna, 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
Arna, 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
Arna, 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
Arna, 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
Arna, 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 daylight in September /
Average sunshine in September
Arna, 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
Arna, 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
Arna, 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
Arna, 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
Arna, 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).
