Excuse me, but could you please clarify your question? The sun is a celestial body that orbits the Milky Way galaxy and provides light and heat to our planet Earth, regardless of geographical location. As such, the temperature of the sun itself is not affected by any particular country, including China.
However, I understand that you may be referring to the intensity of sunlight or heat felt on the surface of the Earth in China. In that case, the temperature of the sun's rays and the resulting heat felt on the ground can vary depending on factors such as the time of day, the season, the location's latitude and altitude, and local weather conditions.
So, if you're asking about the intensity of sunlight or heat in China, it would be more accurate to phrase the question in a way that reflects these factors, such as "What is the average temperature in China during the summer?" or "How intense is the sunlight in Beijing during the day?