Dalyan
Turkey
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Dalyan, Turkey

September, the first month of the autumn, in Dalyan, is also a hot month, with average temperature fluctuating between 30°C (86°F) and 16°C (60.8°F).
An excellent water temperature of 25°C (77°F) and only 4 rainfall days, with 21mm (0.8") of accumulated rainfall, makes September a prime for swimming and other water activities.

Temperature

In September, the average high-temperature marginally drops, from 34°C (93.2°F) in August, to a still tropical 30°C (86°F). In September, the average low-temperature is 16°C (60.8°F).

Rainfall

In Dalyan, Turkey, in September, during 4 rainfall days, 21mm (0.8") of precipitation is typically accumulated. Throughout the year, in Dalyan, there are 103 rainfall days, and 1089mm (42.9") of precipitation is accumulated.

Sea temperature

August and September, with an average sea temperature of 25°C (77°F), are months with the warmest seawater in Dalyan.
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

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

Sunshine

In Dalyan, the average sunshine in September is 11h.

UV index

In September, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to the Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 7 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 reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in September in Dalyan?

In Dalyan, in September, the average high-temperature is 30°C (86°F), and the average low-temperature is 16°C (60.8°F).

How much does it rain in Dalyan in September?

In Dalyan, in September, it is raining for 4 days, with typically 21mm (0.8") of accumulated precipitation.

When is the sea warmest in Dalyan?

Months with the warmest seawater are August and September, with an average sea temperature of 25°C (77°F).

What is the water temperature in September in Dalyan?

In September, the average sea temperature in Dalyan, Turkey, is 25°C (77°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

How many hours of daylight does Dalyan have in September?

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

How many hours of sunshine does Dalyan have in September?

The average sunshine in September is 11h.

What is the UV index intensity in September in Dalyan?

The average daily maximum UV index in September in Dalyan is 7. A UV Index reading of 6 to 7 represents a high health threat from the exposure to the Sun's UV rays.
Average temperature in September - Dalyan, Turkey
  • Average high temperature in September: 30°C

Warmest months (with the highest average high temperature) are July and August (34°C).
The month with the lowest average high temperature is January (13°C).

  • Average low temperature in September: 16°C

Months with the highest average low temperature are July and August (20°C).
The coldest month (with the lowest average low temperature) is January (4°C).

Average rainfall in September - Dalyan, Turkey
  • Average rainfall in September: 21mm

The wettest month (with the highest rainfall) is December (244mm).
The driest month (with the lowest rainfall) is July (6mm).

Average rainfall days in September - Dalyan, Turkey
  • Average rainfall days in September: 4 days

Months with the highest number of rainy days are January and December (15 days).
Months with the lowest number of rainy days are June and September (4 days).

Average sea temperature in September - Dalyan, Turkey
  • Average sea temperature in September: 25°C

Best months for swimming (with the highest average sea temperature) are August and September (25°C).
Coldest months (with the lowest average sea temperature) are February and March (16°C).

Average daylight in September / Average sunshine in September - Dalyan, Turkey
  • 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 - Dalyan, Turkey
  • 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).