Longyearbyen, Svalbard · Arctic/Longyearbyen
Live lunar conditions
Is tonight a Moon night?
Poor Moon-viewing conditions. No useful viewing window in the next 24 hours.
Tonight's verdict
Poor Moon-viewing conditions
Poor
No useful viewing window in the next 24 hours
Phase
Waxing Gibbous
Illumination
79%
Next moonrise
Tomorrow 17:31
Next moonset
Today 23:56
Open-Meteo hourly forecast for 23:00 local · cached up to 20 min
Waxing Gibbous · 79% lit
Altitude 1° · Azimuth 204° · 390,180 km
Northern-hemisphere orientation · surface detail schematic
Tonight's outlook
The next 24 hours, without the guesswork
A deterministic viewing score, a recommended window, and the weather that could change the plan. All times are local to Longyearbyen.
Viewing score
Cloud-weighted, per hour
Poor
Score reflects cloud, altitude and darkness.
Not a scientific measurement. The index favours a Moon that is easy to see, not necessarily the sharpest surface detail.
Best time to look
Best contiguous window in the next 24 hours
No qualifying window
No useful viewing window in the next 24 hours
A window requires at least two consecutive hours with a score of 50 or better and the Moon above the horizon.
Weather snapshot
Hourly forecast for the selected location
Overcast
100%
Cloud cover · 96% chance of precipitation
Moon altitude & cloud cover
Next 24 hours · local time · cloud bars rise from the horizon
Hover or focus an hour for details
Weather: Open-Meteo
| Local time | Moon altitude | Cloud cover | Precipitation chance | Score | Light |
|---|---|---|---|---|---|
| Wed 21 Oct 23:00 | 1 degrees | 100% | 96% | 20 out of 100 | Night |
| Thu 22 Oct 00:00 | 0 degrees | 100% | 97% | 0 out of 100 | Night |
| Thu 22 Oct 01:00 | -2 degrees | 100% | 97% | 0 out of 100 | Night |
| Thu 22 Oct 02:00 | -5 degrees | 100% | 96% | 0 out of 100 | Night |
| Thu 22 Oct 03:00 | -7 degrees | 100% | 91% | 0 out of 100 | Night |
| Thu 22 Oct 04:00 | -10 degrees | 100% | 85% | 0 out of 100 | Night |
| Thu 22 Oct 05:00 | -13 degrees | 100% | 80% | 0 out of 100 | Night |
| Thu 22 Oct 06:00 | -15 degrees | 100% | 79% | 0 out of 100 | Night |
| Thu 22 Oct 07:00 | -17 degrees | 100% | 81% | 0 out of 100 | Night |
| Thu 22 Oct 08:00 | -18 degrees | 100% | 82% | 0 out of 100 | Night |
| Thu 22 Oct 09:00 | -19 degrees | 100% | 82% | 0 out of 100 | Twilight |
| Thu 22 Oct 10:00 | -19 degrees | 100% | 81% | 0 out of 100 | Twilight |
| Thu 22 Oct 11:00 | -18 degrees | 100% | 82% | 0 out of 100 | Daylight |
| Thu 22 Oct 12:00 | -16 degrees | 100% | 87% | 0 out of 100 | Daylight |
| Thu 22 Oct 13:00 | -14 degrees | 100% | 92% | 0 out of 100 | Daylight |
| Thu 22 Oct 14:00 | -11 degrees | 100% | 92% | 0 out of 100 | Daylight |
| Thu 22 Oct 15:00 | -8 degrees | 100% | 80% | 0 out of 100 | Daylight |
| Thu 22 Oct 16:00 | -5 degrees | 100% | 63% | 0 out of 100 | Twilight |
| Thu 22 Oct 17:00 | -2 degrees | 100% | 47% | 0 out of 100 | Twilight |
| Thu 22 Oct 18:00 | 1 degrees | 100% | 35% | 4 out of 100 | Night |
| Thu 22 Oct 19:00 | 3 degrees | 99% | 26% | 9 out of 100 | Night |
| Thu 22 Oct 20:00 | 5 degrees | 99% | 18% | 16 out of 100 | Night |
| Thu 22 Oct 21:00 | 7 degrees | 100% | 12% | 22 out of 100 | Night |
| Thu 22 Oct 22:00 | 7 degrees | 100% | 9% | 23 out of 100 | Night |
| Thu 22 Oct 23:00 | 7 degrees | 100% | 8% | 23 out of 100 | Night |
Why this recommendation
- Waxing Gibbous at 79% illumination. The terminator gives the strongest crater shadows for the next few nights.
- The Moon climbs to about 7° around 22:00.
- Next moonrise: Thu 22 Oct at 17:31.
Limitations & methodShowHide
- The Moon stays low, so buildings, trees and haze may block the view.
- The viewing score is a convenience index, not a scientific measurement of sky quality.
- The Moon disc on this page is phase-correct but its orientation and surface detail are schematic; libration and parallactic angle are not modelled.
Local context
Moonwatching from Longyearbyen
At 78.2° N, this is a polar location. The Moon may stay above or below the horizon for more than a day, and the app will say so rather than invent a rise time. The disc is shown in northern-hemisphere orientation.
All times on this page use the IANA time zone Arctic/Longyearbyen, including daylight-saving changes. The weather forecast is for coordinates 78.22°, 15.65°. It can differ across a large metropolitan area.
Want a different place? Use the location selector in the header, or view the live default page.
Next lunar event
Calculated phase · local to Longyearbyen
Mon
26
Oct
Full Moon
05:12 local · Mon 26 Oct
Full Moon occurs at 05:12 local time in Longyearbyen on 26 October. The Moon is opposite the Sun and fully illuminated. It is easy to see all night, but surface contrast is lowest because sunlight is nearly head-on.
Other city pages
These pages are curated, not generated for every place name. Each has the same calculated live data, a canonical URL, and a manual location selector for anywhere else. Method and sources.