Ornos
Greece
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Ornos, Greece

The first month of the autumn, September, is also a moderately hot month in Ornos, Greece, with average temperature varying between 18°C (64.4°F) and 24°C (75.2°F).

Temperature

In Ornos, the average high-temperature in September slightly decreases, from 27°C (80.6°F) in August, to a still moderately hot 24°C (75.2°F). In September, in Ornos, the average low-temperature is 18°C (64.4°F).

Rainfall

In Ornos, during 2 rainfall days, 14mm (0.6") of precipitation is typically accumulated. Throughout the year, there are 68 rainfall days, and 526mm (20.7") of precipitation is accumulated.

Sea temperature

July through September, with an average sea temperature of 23°C (73.4°F), are months with the warmest seawater in Ornos. Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 23°C (73.4°F) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 25°C (77°F) to 28°C (82.4°F).)

Daylight

The average length of the day in September is 12.4h.

Sunshine

The average sunshine in Ornos, Greece, is 11h.

UV index

In September, the average daily maximum UV index in Ornos is 7. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to the Sun's UV rays for the average person.
The daily maximum UV index of 7 interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in September in Ornos?

In Ornos, in September, the average high-temperature is 24°C (75.2°F), and the average low-temperature is 18°C (64.4°F).

How much does it rain in Ornos in September?

In Ornos, in September, it is raining for 2 days, with typically 14mm (0.6") of accumulated precipitation.

What months are the sea warmest in Ornos?

July through September, with an average sea temperature of 23°C (73.4°F), are months with the warmest seawater. A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 23°C (73.4°F) water.

How warm is the water in September in Ornos?

In Ornos, in September, the average water temperature is 23°C (73.4°F). For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 23°C (73.4°F).

What is the average length of the day in September in Ornos?

The average length of the day in September in Ornos, Greece, is 12.4h.

How many hours of sunshine does Ornos have in September?

In Ornos, Greece, the average sunshine in September is 11h.

What is the UV index reading in September in Ornos?

In Ornos, Greece, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to the UV radiation.
Average temperature in September - Ornos, Greece
  • Average high temperature in September: 24°C

Warmest months (with the highest average high temperature) are July and August (27°C).
The month with the lowest average high temperature is January (12°C).

  • Average low temperature in September: 18°C

Months with the highest average low temperature are July and August (21°C).
Coldest months (with the lowest average low temperature) are January and February (7°C).

Average rainfall in September - Ornos, Greece
  • Average rainfall in September: 14mm

The wettest month (with the highest rainfall) is December (102mm).
The driest month (with the lowest rainfall) is August (3mm).

Average rainfall days in September - Ornos, Greece
  • Average rainfall days in September: 2 days

Months with the highest number of rainy days are January and December (11 days).
The month with the lowest number of rainy days is June (1 days).

Average sea temperature in September - Ornos, Greece
  • Average sea temperature in September: 23°C

Best months for swimming (with the highest average sea temperature) are July, August and September (23°C).
Coldest months (with the lowest average sea temperature) are February and March (15°C).

Average daylight in September / Average sunshine in September - Ornos, Greece
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.7h).
The month with shortest days is December (Average daylight: 9.6h).

  • Average sunshine in September: 11h

The month with most sunshine is July (Average sunshine: 14h).
Months with least sunshine are January and December (Average sunshine: 4).

Average UV index in September - Ornos, Greece
  • Average UV index in September: 7

The month with the highest UV index is July (UV index 10).
Months with the lowest UV index are January and December (UV index 2).