[The Lone Ranger]

The "Goldilocks Zone" for our Solar System is estimated to be between 0.725 - 3.0 astronomical units. (As I'm sure you know, an AU is the mean distance from the Earth to the Sun, so the Earth's mean distance from the Sun is 1.0 AU.)

At aphelion, Venus is 0.728 AU from the Sun, just within the estimated Goldilocks Zone. But for most of its orbit, it's too close to the Sun. Theoretically, even if it had an Earth-like atmosphere and rotational period, it would be too hot for most of each orbit for liquid water to exist.