Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from 29.4°C (84.9°F) in August to a still moderately hot 25.1°C (77.2°F). Marmara's nights in September cool down to an average low-temperature of 18.8°C (65.8°F).Humidity
In September, the average relative humidity is 64%.Rainfall
In Marmara, in September, it is raining for 8.1 days, with typically 34mm (1.34") of accumulated precipitation. Throughout the year, there are 126.4 rainfall days, and 525mm (20.67") of precipitation is accumulated.Snowfall
April through October are months without snowfall.Sea temperature
In September, the average sea temperature is 22.8°C (73°F).Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 22.8°C (73°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 12h and 28min.On the first day of the month, sunrise is at 06:37 and sunset at 19:41. On the last day of September, sunrise is at 07:05 and sunset at 18:53 +03.
Sunshine
In September, the average sunshine is 8.9h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The average daily UV index of 5 in September transforms into the following instructions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. To protect against the Sun's most potent rays, avoid direct exposure around midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Beware! Reflecting off water and sand, UV rays are much stronger.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the water temperature in September?
How many hours of daylight does Marmara have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Marmara have in September?
What is the UV index reading in September?
Average temperature in September
Marmara, Turkey
- Average high temperature in September: 25.1°C
The warmest month (with the highest average high temperature) is August (29.4°C).
The month with the lowest average high temperature is January (7.7°C).
- Average low temperature in September: 18.8°C
The month with the highest average low temperature is August (21.8°C).
The coldest month (with the lowest average low temperature) is January (3.3°C).
Average pressure in September
Marmara, Turkey
- Average pressure in September: 1015.1mbar
The month with the highest atmospheric pressure is December (1019.5mbar).
The month with the lowest atmospheric pressure is July (1011.6mbar).
Average wind speed in September
Marmara, Turkey
- Average wind speed in September: 16.6km/h
The windiest month (with the highest average wind speed) is August (18.7km/h).
The calmest month (with the lowest average wind speed) is May (13.1km/h).
Average humidity in September
Marmara, Turkey
- Average humidity in September: 64%
The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are July and August (62%).
Average rainfall in September
Marmara, Turkey
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is December (64mm).
The driest month (with the least rainfall) is August (11mm).
Average rainfall days in September
Marmara, Turkey
- Average rainfall days in September: 8.1 days
The month with the highest number of rainy days is December (14.1 days).
The month with the least rainy days is August (2.8 days).
Average snowfall in September
Marmara, Turkey
- Average snowfall in September: 0mm
The month with the highest snowfall is January (44mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Marmara, Turkey
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in September
Marmara, Turkey
- Average sea temperature in September: 22.8°C
The best month for swimming (with the highest average sea temperature) is August (25.1°C).
The coldest month (with the lowest average sea temperature) is February (8.8°C).
Average daylight in September /
Average sunshine in September
Marmara, Turkey
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Marmara, Turkey
- Average sunshine days in September: 20.5 days
The month with the most sunshine days is August (27.4 days).
The month with the least sunshine days is February (11.3 days).
Average UV index in September
Marmara, Turkey
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Marmara, Turkey
- Average cloud cover in September: 23
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in September
Marmara, Turkey
- Average visibility in September: 10km
The months with the highest visibility are March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February and December (9km).
