You're just a little overexposed. Looks like you may have AE lock on, as the exposure doesn't change as you point the camera towards and away from the sun. If it's on, take it off, point the camera away from the sun and let the camera settle to a new exposure setting. You can then re-apply AE lock if you want, to stop the exposure changing as you move around. Or you could use the EV slider to reduce the overall exposure