Moderate Activity 🌒 3% Updated live

Aurora Forecast for
Lake Mashu Tonight

Current northern lights conditions for Lake Mashu, Hokkaido, Japan. Latitude 43.6°N · AACGM-v2 magnetic latitude 37°N.

Quick Summary: The estimated northern lights outlook for Lake Mashu peaks at 0% over the next 24 hours. No suitable viewing window.

Aurora forecast

0%

Estimated

Highest estimate · next 24 hours

Viewing window

No suitable viewing window

Asia/Tokyo

Kp index

4

Moderate

Planetary geomagnetic activity

Cloud cover

92%

Overcast

Current sky visibility

Aurora

Tonight's Verdict

Low aurora probability in Lake Mashu tonight. Check back tomorrow for updated conditions.

Hourly Forecast · Estimated

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13
13:00 — 0%
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19:00 — 0%
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01:00 UTC07:00 UTC13:00 UTC19:00 UTC00:00 UTC
Time (UTC)Estimated (%)
2026-10-13T01:00:00.000Z0%
2026-10-13T02:00:00.000Z0%
2026-10-13T03:00:00.000Z0%
2026-10-13T04:00:00.000Z0%
2026-10-13T05:00:00.000Z0%
2026-10-13T06:00:00.000Z0%
2026-10-13T07:00:00.000Z0%
2026-10-13T08:00:00.000Z0%
2026-10-13T09:00:00.000Z0%
2026-10-13T10:00:00.000Z0%
2026-10-13T11:00:00.000Z0%
2026-10-13T12:00:00.000Z0%
2026-10-13T13:00:00.000Z0%
2026-10-13T14:00:00.000Z0%
2026-10-13T15:00:00.000Z0%
2026-10-13T16:00:00.000Z0%
2026-10-13T17:00:00.000Z0%
2026-10-13T18:00:00.000Z0%
2026-10-13T19:00:00.000Z0%
2026-10-13T20:00:00.000Z0%
2026-10-13T21:00:00.000Z0%
2026-10-13T22:00:00.000Z0%
2026-10-13T23:00:00.000Z0%
2026-10-14T00:00:00.000Z0%
How to read this forecast

The next 24 hours use calculated local darkness and a retained aurora activity heuristic. They are not a measured or statistically calibrated chance of seeing aurora. Aggregate cloud cover is held constant unless a timed weather forecast is available.

Generated 2026-10-13T00:34:05.203Z. Kp: fresh · observation 2026-10-13T00:00:00.000Z. Cloud: fresh · cache refresh 2026-10-12T22:30:12.617+00:00. Overall model: estimated.

Window: No suitable viewing window. A dash marks a missing input; zero means the model found no visibility under the supplied conditions.

27-Day Forecast

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Oct 14

Kp Index •••
Probability •••
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Oct 15

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Oct 16

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About Aurora Viewing in Lake Mashu

Lake Mashu, Japan, is at 43.6°N. Aurora visibility depends on local conditions as well as geomagnetic activity. Its verified magnetic latitude is 37°N; Kp 7–9 is an approximate screening range, not a visibility probability. Sightings at this latitude are unusual and should not be expected on a typical night. Find a dark, open northern horizon and check the sky before travelling.

Follow forecasts, cloud maps and aurora alerts for Lake Mashu in Aurora Hunt, then confirm darkness, local cloud and access before going outside.

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Frequently Asked Questions

Can you see aurora in Lake Mashu tonight?
Aurora visibility in Lake Mashu depends on geomagnetic activity (Kp index), cloud cover, and darkness. At 43.6°N latitude, Lake Mashu typically needs a Kp index of 7–9 for visible aurora. Check the real-time forecast above for tonight's conditions.
What time is best to see northern lights in Lake Mashu?
The best time to see aurora in Lake Mashu is typically between 10 PM and 2 AM local time, when skies are darkest. Aurora can appear any time after astronomical twilight, but peak activity usually occurs around local midnight.
Where to watch aurora in Lake Mashu?
For the best aurora viewing in Lake Mashu, find a location away from city light pollution with a clear view to the north. Dark areas outside the city center, elevated viewpoints, and spots near water are ideal. Check cloud cover before heading out.
What Kp index is needed to see aurora in Lake Mashu?
Lake Mashu is at 43.6°N latitude and typically requires a Kp index of 7–9 for visible aurora. Higher Kp values mean stronger geomagnetic storms and better aurora visibility, even at lower latitudes.
Is Lake Mashu, Japan a good place to see northern lights?
Lake Mashu can see aurora during strong geomagnetic storms. Located at 43.6°N, aurora is visible when Kp index reaches 7–9 or higher.

Nearby Aurora Destinations

Teshikaga

43.5°N View →

Bihoro Pass

43.6°N View →

Koshimizu

43.9°N View →

Shibecha

43.3°N View →

Nakashibetsu

43.5°N View →

Akan-Mashu National Park

43.5°N View →

Never Miss the Aurora in Lake Mashu

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