Dassia
Greece
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Dassia, Greece

The first month of the autumn, September, is still a warm month in Dassia, Greece, with average temperature varying between 14°C (57.2°F) and 27°C (80.6°F).

Temperature

In September, the average high-temperature slightly decreases, from a tropical 30°C (86°F) in August, to a warm 27°C (80.6°F). In Dassia, in September, the average low-temperature is 14°C (57.2°F).

Rainfall

In Dassia, Greece, in September, it is raining for 6 days, with typically 75mm (2.95") of accumulated precipitation. Throughout the year, in Dassia, there are 120 rainfall days, and 1357mm (53.43") of precipitation is accumulated.

Sea temperature

In Dassia, the average seawater temperature in September is 24°C (75.2°F).
Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 24°C (75.2°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

In September, the average length of the day is 12.4h.

Sunshine

The average sunshine in Dassia is 8h.

UV index

In September, the average daily maximum UV index in Dassia is 6. A UV Index of 6 to 7 symbolizes a high health hazard from the exposure to the Sun's UV radiation for average individuals.
Note: In September, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in September in Dassia?

In September, in Dassia, the average high-temperature is 27°C (80.6°F), and the average low-temperature is 14°C (57.2°F).

How many days does it rain in September in Dassia?

In Dassia, in September, during 6 rainfall days, 75mm (2.95") of precipitation is typically accumulated.

What is the water temperature in September in Dassia?

In September, the average sea temperature in Dassia is 24°C (75.2°F). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 24°C (75.2°F) water.

How many hours of daylight does Dassia have in September?

In September, the average length of the day in Dassia, Greece, is 12.4h.

How many hours of sunshine does Dassia have in September?

In Dassia, the average sunshine in September is 8h.

What is the UV index intensity in September in Dassia?

In September, the average daily maximum UV index in Dassia is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in September - Dassia, Greece
  • Average high temperature in September: 27°C

Warmest months (with the highest average high temperature) are July and August (30°C).
The month with the lowest average high temperature is January (11°C).

  • Average low temperature in September: 14°C

Months with the highest average low temperature are July and August (17°C).
The coldest month (with the lowest average low temperature) is January (3°C).

Average rainfall in September - Dassia, Greece
  • Average rainfall in September: 75mm

The wettest month (with the highest rainfall) is December (232mm).
The driest month (with the lowest rainfall) is July (15mm).

Average rainfall days in September - Dassia, Greece
  • Average rainfall days in September: 6 days

The month with the highest number of rainy days is December (15 days).
Months with the lowest number of rainy days are July and August (4 days).

Average sea temperature in September - Dassia, Greece
  • Average sea temperature in September: 24°C

The best month for swimming (with the highest average sea temperature) is August (25°C).
Coldest months (with the lowest average sea temperature) are February and March (14°C).

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

The month with the longest days is June (Average daylight: 14.9h).
The month with shortest days is December (Average daylight: 9.4h).

  • Average sunshine in September: 8h

The month with most sunshine is July (Average sunshine: 12h).
Months with least sunshine are January, February, March, November and December (Average sunshine: 4).

Average UV index in September - Dassia, Greece
  • Average UV index in September: 6

Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January, November and December (UV index 2).