When can I see the ISS over Porto Alegre tonight?

The next ISS pass over Porto Alegre starts at 18:22 local time on Saturday 10 Oct, reaching 48° above the horizon. It is not visible to the naked eye, though. The next one you can actually see is Saturday 10 Oct at 20:00, reaching 14°.

Which direction should I look?

The ISS always moves from roughly west to east. It looks like a very bright, fast, non-blinking star crossing the whole sky in a few minutes.

ISS over Porto Alegre — next pass times

Upcoming International Space Station passes over Porto Alegre, Brazil for the next 3 days, in local Porto Alegre time — computed from the latest orbital data and refreshed automatically.

🛰 Next ISS pass over Porto Alegre

Saturday 10 Oct · 20:00 · 14°

—:——:——Watch it live in 3D →

🛰 Next visible pass after this one over Porto Alegre: Sun 11 Oct, 19:12

We'll email you the day before — and before every genuinely visible pass after that. Most crossings happen in daylight; we skip those.

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3D sky view · track the ISS in real time

Date	Local time	Max height	Lasts	Viewing
Saturday 10 Oct	18:22	48°	~7 min	☀ daylight
Saturday 10 Oct	20:00 visible 20:00–20:03	14°	~4 min	possible

Sunday 11 Oct	02:32	43°	~7 min	🌑 in Earth's shadow
Sunday 11 Oct	04:11	11°	~2 min	🌑 in Earth's shadow
Sunday 11 Oct	17:35	24°	~6 min	☀ daylight
Sunday 11 Oct	19:12	22°	~6 min	possible
Monday 12 Oct	01:45	25°	~6 min	🌑 in Earth's shadow
Monday 12 Oct	03:22	21°	~6 min	🌑 in Earth's shadow
Monday 12 Oct	16:49	13°	~4 min	☀ daylight
Monday 12 Oct	18:24	38°	~7 min	☀ daylight
Tuesday 13 Oct	00:58	15°	~5 min	🌑 in Earth's shadow
Tuesday 13 Oct	02:34	42°	~7 min	🌑 in Earth's shadow
Tuesday 13 Oct	17:36	72°	~7 min	☀ daylight
Wednesday 14 Oct	01:47	76°	~7 min	🌑 in Earth's shadow

When will the International Space Station pass over Porto Alegre?

ISS stands for the International Space Station — the largest and brightest human-made object in orbit around Earth. Passes over Porto Alegre above 10° in the next 10 days: 38. Of those, visible to the naked eye: 2.

The next pass of the International Space Station over Porto Alegre is on Saturday 10 Oct at 18:22 local time, reaching 48° above the horizon. The next pass you can actually see is on Saturday 10 Oct at 20:00 (14° above the horizon).

How to spot it

Look for a bright, fast “star” that doesn't blink — the ISS outshines everything except the Moon and Venus.
It moves west to east, crossing the whole sky in 3–6 minutes.
Evening and pre-dawn passes are the visible ones — the station must be sunlit while your sky is dark. Daytime passes in the table are invisible to the eye.
Porto Alegre sits within the ISS's orbital band, so it can pass nearly straight overhead — those 70°+ passes are spectacular.