Kos
Greece
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Kos, Greece

Clear waters of the Kos Town Harbour, Greece, with a view of several ships sailing
Clear waters of the Kos Town Harbour, Greece, with a view of several ships sailing
September, the first month of the autumn, in Kos, is still a warm month, with average temperature ranging between max 28°C (82.4°F) and min 19°C (66.2°F).

Temperature

In September, the average high-temperature slightly decreases, from a hot 32°C (89.6°F) in August, to a warm 28°C (82.4°F). In Kos, the average low-temperature is 19°C (66.2°F).

Rainfall

In Kos, it is raining for 5 days, with typically 17mm (0.7") of accumulated precipitation. In Kos, during the entire year, the rain falls for 93 days and collects up to 762mm (30") of precipitation.

Sea temperature

In Kos, the average water temperature is 24.9°C (76.8°F). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 24.9°C (76.8°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 September is 11h.

UV index

In September, the average daily maximum UV index in Kos is 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to the Sun's UV rays for ordinary individuals.
The daily maximum UV index of 7 in September 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in September in Kos?

In September, in Kos, Greece, the average high-temperature is 28°C (82.4°F), and the average low-temperature is 19°C (66.2°F).

How many days does it rain in September in Kos?

In Kos, in September, it is raining for 5 days, with typically 17mm (0.7") of accumulated precipitation.

What is the water temperature in September in Kos?

In Kos, Greece, in September, the average water temperature is 24.9°C (76.8°F). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 24.9°C (76.8°F) water may be enjoyable.

How many hours of daylight does Kos have in September?

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

How long on average sun shines in September in Kos?

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

How high is the UV index in September in Kos?

In Kos, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health threat from unprotected exposure to the UV radiation.
Average temperature in September - Kos, Greece
  • Average high temperature in September: 28°C

Warmest months (with the highest average high temperature) are July and August (32°C).
Months with the lowest average high temperature are January and February (14°C).

  • Average low temperature in September: 19°C

The month with the highest average low temperature is July (22°C).
Coldest months (with the lowest average low temperature) are January and February (7°C).

Average rainfall in September - Kos, Greece
  • Average rainfall in September: 17mm

The wettest month (with the highest rainfall) is January (169mm).
The driest month (with the lowest rainfall) is July (2mm).

Average rainfall days in September - Kos, Greece
  • Average rainfall days in September: 5 days

Months with the highest number of rainy days are January and December (14 days).
The month with the lowest number of rainy days is June (3 days).

Average sea temperature in September - Kos, Greece
  • Average sea temperature in September: 24.9°C

The best month for swimming (with the highest average sea temperature) is August (25.3°C).
The coldest month (with the lowest average sea temperature) is March (16.9°C).

Average daylight in September / Average sunshine in September - Kos, 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: 9.7h).

  • 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: 5).

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

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