Gournes
Greece
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Gournes, Greece

The first month of the autumn, September, is still a warm month in Gournes, Greece, with temperature in the range of an average low of 18°C (64.4°F) and an average high of 25°C (77°F).

Temperature

In Gournes, the average high-temperature slightly decreases, from 28°C (82.4°F) in August, to a still warm 25°C (77°F). In Gournes, in September, the average low-temperature is 18°C (64.4°F).

Rainfall

In Gournes, in September, during 1 rainfall days, 23mm (0.9") of precipitation is typically accumulated. Throughout the year, there are 71 rainfall days, and 725mm (28.5") of precipitation is accumulated.

Sea temperature

In September, the average sea temperature is 24°C (75.2°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 24°C (75.2°F).

Daylight

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

Sunshine

In September, the average sunshine in Gournes is 10h.

UV index

In Gournes, the average daily maximum UV index is 8. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from unprotected exposure to the Sun's UV rays for ordinary individuals.
The daily maximum UV index of 8 interpret into the following advice:
Take extra precautions. Protection against sun damage is required. 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. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in September in Gournes?

In Gournes, Greece, in September, the average high-temperature is 25°C (77°F), and the average low-temperature is 18°C (64.4°F).

How many days does it rain in September in Gournes?

In Gournes, Greece, in September, it is raining for 1 days, with typically 23mm (0.9") of accumulated precipitation.

What is the water temperature in September in Gournes?

In Gournes, Greece, the average seawater temperature in September is 24°C (75.2°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 24°C (75.2°F).

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

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

How long on average sun shines in September in Gournes?

In Gournes, Greece, the average sunshine in September is 10h.

How high is the UV index in September in Gournes?

In Gournes, Greece, the average daily maximum UV index in September is 8. A UV Index of 8 to 10 symbolizes a very high health risk from unsafe exposure to the Sun's UV rays.
Average temperature in September - Gournes, Greece
  • Average high temperature in September: 25°C

Warmest months (with the highest average high temperature) are July and August (28°C).
Months with the lowest average high temperature are January and February (14°C).

  • Average low temperature in September: 18°C

The month with the highest average low temperature is August (21°C).
Coldest months (with the lowest average low temperature) are January and February (8°C).

Average rainfall in September - Gournes, Greece
  • Average rainfall in September: 23mm

The wettest month (with the highest rainfall) is January (148mm).
The driest month (with the lowest rainfall) is August (1mm).

Average rainfall days in September - Gournes, Greece
  • Average rainfall days in September: 1 days

The month with the highest number of rainy days is December (13 days).
Months with the lowest number of rainy days are June, July, August and September (1 days).

Average sea temperature in September - Gournes, 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 (15°C).

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

The month with the longest days is June (Average daylight: 14.5h).
The month with shortest days is December (Average daylight: 9.8h).

  • Average sunshine in September: 10h

Months with most sunshine are June and July (Average sunshine: 12h).
Months with least sunshine are January and December (Average sunshine: 4).

Average UV index in September - Gournes, Greece
  • Average UV index in September: 8

The month with the highest UV index is July (UV index 11).
The month with the lowest UV index is December (UV index 2).