It depends on how close you're too the sun and whether you're facing the sun directly or in the shadow of a large object.
In low Earth orbit, facing the sun you would feel immense heat and singe your skin while suffocating from lack of oxygen due to 200 degrees F. On the shadow side of Earth, you would feel immense cold and experience total frostbite exposure instantly while suffocating from lack of oxygen due to -200 degrees F. In both cases, lack of atmospheric pressure will cause your blood to boil making you experience extreme pain but no oxygen to allow you to vocalize screams of pain before you die.
Using low Earth orbit as a bar, farther away from the sun your experience will be greater than the shadow of Earth and closer to the sun your experience will be greater than facing the sun.
Once away from the electromagnetic field of a planet, you'll have to endure at the same time the harsh solar radiation being pierced through your body cooking you inside like a microwave. If your outside the electromagnetic field of the sun and in interstellar space, then the interstellar radiation will be much stronger and cooking you inside faster. If your outside the electromagnetic field of the galaxy and in intergalactic space, then the radiation there will be the greatest and cook you the fastest.
Space is the most extreme dangerous enviroment to be in.
