Aurora Borealis in De Pere
United States · 44.45°, -88.06° · geomagnetic 53.4° · needs Kp 7
Tonight in De Pere
1%
Peak chance of a visible display tonight, from the same model the Revon app runs. De Pere needs Kp 7 to see anything at all, and tonight the forecast peaks at Kp 4.7. Short of the threshold, which is what most nights look like here.
Updated 2026-08-02 20:20 UTC
The next 30 nights in De Pere
Every night to come, scored the same way as tonight. The best of the open week is Sunday 2 Aug at 1%. Not one of the seven reaches the Kp 7 that De Pere needs, which is normal rather than unlucky — it averages 3.2 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.
Nights 8–30 unlock in the Revon app
Revon aurora model over the NOAA Kp forecast and 27-day outlook
How often the aurora borealis reaches De Pere
3.2 nights a year, averaged across 10.0 years of records
| Storm level | Nights / year |
|---|---|
| Kp 4 | 83.4 |
| Kp 5 | 28.7 |
| Kp 6 | 9.3 |
| Kp 7 | 3.2 |
| Kp 8 | 1.2 |
NOAA planetary Kp, 2016-04-02 to 2026-03-30
Wait for an alert; do not book a week
At Kp 7, De Pere 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
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 11.4 | 10.3 | 9.0 | 7.0 | 5.0 | 3.5 | 4.2 | 6.3 | 8.3 | 9.9 | 11.1 | 11.6 |
Solar declination and hour angle at −18°
Getting clear of the light
De Pere is small enough that its own lights are a minor problem — the centre reads Bortle 6. Walking to the edge of town is often escape enough.
- 25 km east-north-east — around Town of Montpelier → Bortle 5
- 42 km north-east — around Town of Union → Bortle 4
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, May, September and August came out ahead in De Pere. 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 De Pere viewing season.
- 13 Aug 2026
- 11 Sep 2026
- 11 Oct 2026
- 09 Nov 2026
- 09 Dec 2026
- 07 Jan 2027
- 06 Feb 2027
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 Yellowknife, 2,617 km north-north-west in Canada.
| De Pere | Yellowknife | |
|---|---|---|
| Kp needed | 7 | 3 |
| Nights per year | 3.2 | 171.4 |
| Geomagnetic latitude | 53.4° | 68.6° |
Confirmed reports from this area
142 verified sightings were logged within 300 km of De Pere 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 De Pere
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 De Pere.
- Heritage Hill State Park — park3.5 km north-east
- Cooke Park — park3.9 km north-north-east
- Platten Hill — mountain11.5 km north-north-west
- Birds Tree Island — island13.0 km north-north-east
- Grassy Island — island13.1 km north-north-east
- Burdon Hill — mountain13.4 km north-north-west
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 De Pere you will find WNFL-AM (Green Bay), WDUZ-AM (Green Bay) and WGBP-FM (Green Bay), and for a day when the cloud sits low, National Railroad Museum and Neville Public Museum of Brown County are indoors and near by.
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)
Where to stay
Anywhere on the outskirts of De Pere will do; what matters is being able to step outside and check the sky without a drive first.
- Fairfield Inn by Marriott Green Bay 2.7 km from the centre
- Super 8 Green Bay Wi 2.7 km from the centre
- Country Inn & Suites By Carlson Green Bay 2.8 km from the centre
- Fairfield Inn & Suites Green B 2.8 km from the centre
- Microtel Inn & Suites By Wyndh 2.8 km from the centre
- Super 8 Green Bay Airport Stadium 2.8 km from the centre
Places from GeoNames (CC BY 4.0) — confirm before booking
The last nights it was visible here
Nights in the last decade when the storm was strong enough for De Pere and the sky was dark enough to show it.
| Date | Peak |
|---|---|
| 2026-03-20 | Kp 7.0 |
| 2026-01-20 | Kp 7.67 |
| 2026-01-19 | Kp 8.67 |
| 2025-11-12 | Kp 7.33 |
| 2025-11-11 | Kp 8.67 |
NOAA planetary Kp
Know when it is worth going outside
Revon watches the De Pere forecast and pushes an alert when the odds for tonight clear your threshold — no checking, no guessing.
Common questions about the aurora borealis in De Pere
Can you see the aurora borealis from De Pere?
Yes. On the last 10.0 years of NOAA Kp records, De Pere had about 3.2 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 De Pere?
Kp 7. De Pere sits at geomagnetic latitude 53.4°, 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 De Pere?
May, September and August. Those months scored highest once both conditions are counted together: geomagnetic activity and enough hours of real darkness.
Where can you escape the light pollution near De Pere?
The centre of De Pere reads Bortle 6. The nearest sky at Bortle 4 is about 42 km north-east around Town of Union. On a marginal night that drive matters more than the forecast does.
Where is the nearest place to De Pere with reliable aurora borealis?
Yellowknife, Canada — 2,617 km north-north-west. It needs only Kp 3 and averages 171.4 viable nights a year against 3.2 in De Pere.
Nearby towns
Forecasts for places within reach of De Pere.