ISS pass times · Portugal
When is the ISS visible over Porto?
The International Space Station passes over Porto several times a day, but you can only see it when the sky above you is dark while the station is still catching sunlight. The list below shows the next passes over Porto, Portugal that you can actually watch — with exact local times, where to look, and how bright each one will be.
Next visible passes over Porto
Times are Porto local time. Computed live from the latest orbital data — only passes you can actually see (after dusk or before dawn, station sunlit).
Calculating passes for Porto…
Viewing from Porto
At 41.1° latitude, Porto gets a healthy mix of ISS passes — from low arcs along the horizon to spectacular near-overhead crossings. High passes here can outshine everything in the night sky except the Moon.
How to read the pass times
Each pass shows its start time in Porto local time, the compass direction it travels (for example W→SE means it rises in the west and sets in the southeast), how high it climbs, and its brightness. The higher and brighter the pass, the easier it is to spot — anything rated bright or better is obvious to the naked eye, even from a city. New to this? Read our guide to seeing the ISS or watch the station's position right now on the live tracker.