Hotter still is the core. In the sun this is thought to be 10 - 20 million degrees. These temperatures are due to the pressure caused by gravity trying to compress the star. It has to be this temperature for fusion of hydrogen to take place.
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).
May weather in Seattle: May is generally a beautiful month in Seattle, with temperatures into the late teens and more days of sun and blue skies than rain. Even so, the evenings in May are chilly, and periods of rain are not uncommon, so a jacket and an umbrella are still a good idea. (Average Max Temperature: 18.2Â°C.