Aurora Borealis in North Denmark

Denmark · 57.25°, 10.09° · geomagnetic 57.2° · needs Kp 7

Tonight in North Denmark

34%

Peak chance of a visible display tonight, from the same model the Revon app runs. North Denmark needs Kp 7 to see anything at all, and tonight the forecast peaks at Kp 5.7. Short of the threshold, which is what most nights look like here.

Tonight Sun 02 Aug
34%
18
20
22
00
02
04
06
Tomorrow Mon 3 Aug
3%
Hour-by-hour for this night is in the app
Tuesday Tue 4 Aug
2%
Hour-by-hour for this night is in the app

Unlock every hour in the app

Updated 2026-08-02 20:20 UTC

The next 30 nights in North Denmark

Every night to come, scored the same way as tonight. The best of the open week is Sunday 2 Aug at 34%. Not one of the seven reaches the Kp 7 that North Denmark needs, which is normal rather than unlucky — it averages 2.5 viable nights a year. The 23 nights past the seven-day window move with the 27-day solar rotation and are updated daily in the app.

Moderate aurora activity tonight around 11 PM. Similar conditions expected on August 19th.

Sun 2
34%
Kp 5.7
Mon 3
3%
Kp 3.3
Tue 4
2%
Kp 1.9
Wed 5
5%
Kp 3.0
Thu 6
2%
Kp 3.0
Fri 7
2%
Kp 2.0
Sat 8
2%
Kp 2.0

Nights 8–30 unlock in the Revon app

See all 30 nights for North Denmark

Revon aurora model over the NOAA Kp forecast and 27-day outlook

How often the aurora borealis reaches North Denmark

2.5 nights a year, averaged across 10.0 years of records

Storm levelNights / year
Kp 483.4
Kp 528.7
Kp 69.3
Kp 73.2
Kp 81.2

NOAA planetary Kp, 2016-04-02 to 2026-03-30

Wait for an alert; do not book a week

At Kp 7, North Denmark needs a severe geomagnetic storm before anything shows above the northern horizon. Storms that size arrive a handful of times per solar cycle and announce themselves a day or two ahead. Watching for one beats picking dates and hoping.

Hours of true darkness, month by month

JanFebMarAprMayJunJulAugSepOctNovDec
11.910.38.04.40.00.00.02.06.89.611.512.4

Solar declination and hour angle at −18°

Nothing to see from May to July

Through those months the sun never falls more than 18° below the North Denmark horizon, so the sky never darkens fully. Plan around the darker half of the year.

Getting clear of the light

With 214,971 people around you, the sky over central North Denmark is Bortle 5. The glow hides anything but the brightest display, so the drive out matters more here than the forecast does.

Falchi 2016 World Atlas (DOI: 10.5880/GFZ.1.4.2016.001)

The months that actually deliver

Counting only nights that were both stormy enough and dark enough, September, November and August came out ahead in North Denmark. That is storm season and darkness overlapping — the equinoxes tend to be geomagnetically active, and the nights are already long by then.

Darkest nights of the coming year

A bright moon washes out a weak display as effectively as street lighting. These new moons fall inside the North Denmark viewing season.

Where it is close to a certainty

If you would rather plan a trip than wait for a storm, the nearest place with genuinely frequent aurora is Inverness, 857 km west in United Kingdom.

North DenmarkInverness
Kp needed75
Nights per year2.5 28.7
Geomagnetic latitude57.2° 59.8°

See the Inverness forecast

Confirmed reports from this area

19 verified sightings were logged within 300 km of North Denmark between 2015-01-01 and 2016-12-31. Rare is not the same as impossible.

Aurorasaurus verified positive reports

Where the horizon opens up near North Denmark

The display sits low on the northern horizon, so what beats a better forecast is open ground facing that way. Height gets you above the town glow; water gives you an unbroken skyline. These are within a short drive of North Denmark.

Places from GeoNames (CC BY 4.0)

What to do with the daylight

Aurora watching is a night job, and in winter that leaves a short, bright day to fill. Close to North Denmark you will find Brønderslev Radio Mast, Dronninglund Radio Mast and HVDC Konti-Skan - Stae Grond Conductor Terminus.

Keep the daylight loose: the sky decides the evening, and the forecast can turn within a few hours.

Places from GeoNames (CC BY 4.0)

The last nights it was visible here

Nights in the last decade when the storm was strong enough for North Denmark and the sky was dark enough to show it.

DatePeak
2026-03-20Kp 7.0
2026-01-20Kp 7.67
2026-01-19Kp 8.67
2025-11-12Kp 7.33
2025-11-11Kp 8.67

NOAA planetary Kp

Aurora forecasts across North Denmark

All 4 places in North Denmark with a forecast page, and the Kp each one needs.

Know when it is worth going outside

Revon watches the North Denmark forecast and pushes an alert when the odds for tonight clear your threshold — no checking, no guessing.

Get aurora alerts on iPhone

Common questions about the aurora borealis in North Denmark

Can you see the aurora borealis from North Denmark?

Yes. On the last 10.0 years of NOAA Kp records, North Denmark had about 2.5 nights a year when the storm was strong enough and the sky dark enough at the same time.

What Kp index do you need to see the aurora borealis in North Denmark?

Kp 7. North Denmark sits at geomagnetic latitude 57.2°, and the auroral oval only reaches that far from the pole once activity hits Kp 7. Storms that size occur about 3.2 nights a year.

When is the best time of year to see the aurora borealis in North Denmark?

September, November and August. Those months scored highest once both conditions are counted together: geomagnetic activity and enough hours of real darkness. From May to July the sky over North Denmark never gets fully dark, so nothing is visible however strong the storm.

Where can you escape the light pollution near North Denmark?

The centre of North Denmark reads Bortle 5. The nearest sky at Bortle 4 is about 10 km east around Frederikshavn Municipality. On a marginal night that drive matters more than the forecast does.

Where is the nearest place to North Denmark with reliable aurora borealis?

Inverness, United Kingdom — 857 km west. It needs only Kp 5 and averages 28.7 viable nights a year against 2.5 in North Denmark.

Nearby towns

Forecasts for places within reach of North Denmark.