September weather forecastChalki, Greece
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Chalki, Greece, with an average temperature ranging between min 24°C (75.2°F) and max 26.8°C (80.2°F).The ideal sea water temperature of 26°C (78.8°F) and only 2.9 rainfall days, with 7mm (0.28") of accumulated rainfall, makes September the best time for swimming and other water activities.
Temperature
Chalki records an average high-temperature of a still warm 26.8°C (80.2°F) in September, closely mirroring the climate of the previous month. In Chalki, the average low-temperature during September nights tends to settle at a still warm 24°C (75.2°F), indicating a slight drop from the daytime peak.Humidity
The average relative humidity in September in Chalki is 67%.Rainfall
In September, in Chalki, the rain falls for 2.9 days. Throughout September, 7mm (0.28") of precipitation is accumulated. In Chalki, during the entire year, the rain falls for 84.6 days and collects up to 390mm (15.35") of precipitation.Sea temperature
In Chalki, the average seawater temperature in September is 26°C (78.8°F).Note: For water activities like swimming, diving, and more, temperatures ranging between 25°C (77°F) and 29°C (84.2°F) offer superior comfort and enjoyment for lengthy durations.
Daylight
In September, the average length of the day is 12h and 25min.On the first day of September in Chalki, Greece, sunrise is at 06:41 and sunset at 19:37. On the last day of the month, sunrise is at 07:04 and sunset at 18:54 EEST.
Sunshine
In September, the average sunshine in Chalki is 11.5h.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 exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a daily UV index of 6 turns into the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Warning! The reflection of sand and water increases the UV dose.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chalki, Greece
- Average high temperature in September: 26.8°C
The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (14.7°C).
- Average low temperature in September: 24°C
The month with the highest average low temperature is August (25.6°C).
The coldest month (with the lowest average low temperature) is January (12.6°C).
Average pressure in September
Chalki, Greece
- Average pressure in September: 1011.5mbar
The month with the highest atmospheric pressure is December (1017.3mbar).
The month with the lowest atmospheric pressure is July (1007.1mbar).
Average wind speed in September
Chalki, Greece
- Average wind speed in September: 17.7km/h
The windiest months (with the highest average wind speed) are January and February (22.1km/h).
The calmest month (with the lowest average wind speed) is May (14.9km/h).
Average humidity in September
Chalki, Greece
- Average humidity in September: 67%
The months with the highest relative humidity are February, April and June (70%).
The months with the lowest relative humidity are October and November (66%).
Average rainfall in September
Chalki, Greece
- Average rainfall in September: 7mm
The wettest month (with the highest rainfall) is December (80mm).
The driest month (with the least rainfall) is August (1mm).
Average rainfall days in September
Chalki, Greece
- Average rainfall days in September: 2.9 days
The month with the highest number of rainy days is January (15.2 days).
The months with the least rainy days are July and August (0.3 days).
Average sea temperature in September
Chalki, Greece
- Average sea temperature in September: 26°C
The best month for swimming (with the highest average sea temperature) is August (26.4°C).
The coldest month (with the lowest average sea temperature) is February (17.1°C).
Average daylight in September /
Average sunshine in September
Chalki, 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: 11h and 30min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).
Average sunshine days in September
Chalki, Greece
- Average sunshine days in September: 26.8 days
The month with the most sunshine days is July (30.8 days).
The month with the least sunshine days is January (13.1 days).
Average UV index in September
Chalki, Greece
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 4).
Average cloud cover in September
Chalki, Greece
- Average cloud cover in September: 5
The month with the most cloud cover is January (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 2).
Average visibility in September
Chalki, 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).
