International Space Station Tracker

When can you see the ISS over South Portland?

See where the International Space Station (ISS) is now and when it will next cross the sky over South Portland, Maine, United States.

Or click anywhere on the map below to manually choose an observing point.

What counts as a visible pass?

The station must be at least 10° above the horizon, illuminated by the Sun, and passing over a sky dark enough for viewing. Times use your city’s local timezone.

Visible passes over South Portland in the next 72 hours

5

Next visible pass

Observing location time

–

Visible for

5 min 45 sec

Cloud cover

46%

  1. Appears

    west-southwest 238°

  2. Highest point

    Elevation 86.9°

  3. Disappears

    east-northeast 57°

Select “Where to look” to explore the pass in 3D. Drag the time slider to see where to look at any point in the pass.

Observing location time

–

Visible for
1 min
Cloud cover
49%
  1. Appears

    west-northwest 289.1°

  2. Highest point

    Elevation 16°

  3. Disappears

    west-northwest 301.6°

Select “Where to look” to explore the pass in 3D. Drag the time slider to see where to look at any point in the pass.

Observing location time

–

Visible for
3 min 20 sec
Cloud cover
9%
  1. Appears

    west 277.8°

  2. Highest point

    Elevation 30°

  3. Disappears

    north 354.4°

Select “Where to look” to explore the pass in 3D. Drag the time slider to see where to look at any point in the pass.

Observing location time

–

Visible for
5 min 30 sec
Cloud cover
2%
  1. Appears

    west 265.4°

  2. Highest point

    Elevation 39.4°

  3. Disappears

    northeast 42.1°

Select “Where to look” to explore the pass in 3D. Drag the time slider to see where to look at any point in the pass.

Observing location time

–

Visible for
30 sec
Cloud cover
0%
  1. Appears

    northwest 306°

  2. Highest point

    Elevation 12.5°

  3. Disappears

    northwest 312.3°

Select “Where to look” to explore the pass in 3D. Drag the time slider to see where to look at any point in the pass.

Forecast updated:

Observing location time: America/New_York

Pass predictions may change after an orbital manoeuvre.

ISS passes near this city

Live ISS position and visible pass forecast for South Portland, United States, with local times, directions, elevation and cloud cover.

Common questions about seeing the ISS in South Portland

When is the next visible ISS pass over South Portland?

The forecast on this page lists visible passes for the next 72 hours in South Portland’s local timezone, including start, peak, end, direction and elevation.

Can I see the ISS from South Portland without a telescope?

Yes. During a visible pass it looks like a bright, steady star moving quickly across the sky above South Portland.

Why isn’t every overhead pass listed for South Portland?

A pass is only listed when the ISS is sunlit while the sky over South Portland is dark enough, and the station is at least 10° above the horizon.

Does weather affect viewing the ISS from South Portland?

Yes. Cloud cover in the forecast helps you judge whether the sky will be clear enough during a pass over South Portland.

Data sources

Orbit data from CelesTrak using U.S. Space Force GP elements.

Weather forecast data from MET Norway (CC BY 4.0).

Orbit epoch: Nov 15, 2026, 8:02:34 AM UTC

What counts as a visible pass?

This forecast uses South Portland's coordinates and local timezone to calculate when the ISS is sunlit, at least 10 degrees above the horizon and crossing a dark enough sky.

Viewing location

43.6415°, -70.2409° · America/New_York