The coolest stars are the red dwarfs/red giants, with surface temperatures of 3,500 Kelvin or less. As the surface temperature gets hotter, the color of the star turns orange, and then yellow-orange, and then yellow, yellow-white, and then around 5,800 Kelvin it appears white.
In most years, Seattle averages a daily maximum temperature for September that's between 69 and 73 degrees Fahrenheit (20 to 23 degrees Celsius). The minimum temperature usually falls between 52 and 55 Â°F (11 to 13 Â°C). The days at Seattle begin to cool down quickly during September.
Expect more hot, dry and sunny days with very little expectation of rain in August. The average daily temperature expected in Seattle in this month is 23 C (73Â°F) , dropping to an average temperature of 13Â°C (55Â°F) .he average expectation for rain fall for this month is 34 mm over 6 days. Seattle in this month expects an average of 0 days of snow or foggy weather. The average temperature of the sea during this month is 14 C (57 F).