You cannot say exact temperature of the sun because it variable. The surface of the sun is called the photosphere. Its density is from one-millionth, to one ten millionth as dense as water. The photosphere gives off the sun's energy in forms of heat and light. The photosphere is 340 miles thick and it's temperature s range from 5,500 °C to 6,000 °C.
Above the photosphere the temperature is about 4,000 °C above that, the temperature rises to 27,800 °C. The region consists of hot gases in violent motion and is called the chromo-sphere. It displays fountains of flaming gases. The next layer below the photosphere is the convection zone. It is 60,000 miles thick and it's temperature can reach 2 million °C. The radiation zone is directly below the convection zone. Energy from the core rebounds for centuries before surfacing, and it is 300,000 miles thick with a temperature at up to 6.5 million °C. The core of the sun is under 200 billion times the pressure of the earth's surface. It is 60,000 miles thick and has a temperature that does not exceed 15 million °C.

Answered by Ramcharan , an ibibo Master, at 6:46 AM on January 31, 2009

the temperature on the surface of the sun is about 5,500° Celsius, there are dark areas on the surface where the tr=emperature reaches up to 4,000° Celsius. the core is the hottes part ,here temperature teaches up to 15 million° Celsius.

remember I said the temp in 'Celsius' and not 'Fahrenheit', in 'Fahrenheit' the number is higher.

Answered by Hari Anil , an ibibo Citizen, at 11:33 PM on January 30, 2009

I don't think someone has measured the temperature of the sun so far. Moreover, the temperature that the sun delivers to the earth keeps changing depending on the weather. On a cloudy day, the temperature would be lower and on the other hand a sunny day would bring maximum temperature to the earth. Rainy days will have some temperatures but it is difficult to say how it would be as the clouds will play a major role in regulating the atmospheric temperature.

Answered by MRIDUL BORA , an ibibo Master, at 9:44 PM on January 30, 2009

The surface of the Sun consists of hydrogen (about 74% of its mass, or 92% of its volume), helium (about 24% of mass, 7% of volume), and trace quantities of other elements, including iron, nickel, oxygen, silicon, sulfur, magnesium, carbon, neon, calcium, and chromium.
The Sun has a spectral class of G2V. G2 means that it has a surface temperature of approximately 5,780 K (5,500 °C) giving it a white color that often, because of atmospheric scattering, appears yellow when seen from the surface of the Earth. This is a subtractive effect, as the preferential scattering of shorter wavelength light removes enough violet and blue light, leaving a range of frequencies that is perceived by the human eye as yellow.

Temperature
of surface (effective) 5 778 K
Temperature
of corona ~5×106 K
Temperature
of core ~15.7×106 K
check out:
http://en.wikipedia.org/ wiki/Sun

Answered by Your Answers , an ibibo Citizen, at 2:50 PM on January 30, 2009