More like 300°C if this phase diagram is correct. Still much lower than this planet's average temperature of course.
Added: However, remember this is pressure at some defined reference altitude. Pressure increases with depth, so with an oceania, you will still easily reach sufficient depth for liquid (or even solid!) water to exist. Put another way, if you take a temperate oceania and raise its temperature above the boiling point, the entire planet will not necessarily turn into vapor.
Of course, you are correct. My bad. But as you said, still way below the planet's temperature, which, along with the mentioned atmospheric pressure is normalized to "sea level", i.e., the altitude at which the water table is displayed. Ergo, Space Engine tells me 166 atm @ 616°C and I am hovering right above the water...