Aurora Borealis in Northampton
United Kingdom · 52.25°, -0.88° · geomagnetic 54.2° · needs Kp 7
Tonight in Northampton
4%
Peak chance of a visible display tonight, from the same model the Revon app runs. Northampton 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.
Updated 2026-08-02 20:20 UTC
The next 30 nights in Northampton
Every night to come, scored the same way as tonight. The best of the open week is Sunday 2 Aug at 4%. Not one of the seven reaches the Kp 7 that Northampton needs, which is normal rather than unlucky — it averages 2.7 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
See all 30 nights for Northampton
Revon aurora model over the NOAA Kp forecast and 27-day outlook
How often the aurora borealis reaches Northampton
2.7 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, Northampton 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 11.7 | 10.3 | 8.5 | 5.7 | 1.7 | 0.0 | 0.0 | 4.5 | 7.5 | 9.7 | 11.4 | 12.1 |
Solar declination and hour angle at −18°
Nothing to see from June to July
Through those months the sun never falls more than 18° below the Northampton horizon, so the sky never darkens fully. Plan around the darker half of the year.
Getting clear of the light
With 245,899 people around you, the sky over central Northampton is Bortle 7. The glow hides anything but the brightest display, so the drive out matters more here than the forecast does.
- 61 km north-north-east — around South Kesteven → Bortle 5
- 95 km north-east — around King's Lynn and West Norfolk → 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, September, August and November came out ahead in Northampton. 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 Northampton 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 Inverness, 619 km north-north-west in United Kingdom.
| Northampton | Inverness | |
|---|---|---|
| Kp needed | 7 | 5 |
| Nights per year | 2.7 | 28.7 |
| Geomagnetic latitude | 54.2° | 59.8° |
Confirmed reports from this area
85 verified sightings were logged within 300 km of Northampton 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 Northampton
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 Northampton.
- Waydale Hill — hill10.9 km west
- Borough Hill — hill17.5 km west
- Rushden Hall — park19.8 km east-north-east
- Jubilee — park20.2 km east
- Millholme Island — island19.1 km east-south-east
- Heron Island — island20.1 km east-south-east
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. Northampton keeps its fortified past above ground, at Kings Heath Mediumwave Transmitter, Earls Barton Berry Mount and Wollaston Beacon Hill.
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
Staying central in Northampton is fine for everything except the aurora itself — you will still need to drive out. If seeing it matters more than convenience, base yourself on the edge of town facing your dark spot.
- Courtyard Northampton West 1.6 km from the centre
- Hellidon Lakes Golf and Spa Hotel 1.7 km from the centre
- Kettering Park Hotel And Spa 2.3 km from the centre
- westone manor 2.8 km from the centre
- Quality Northampton 2.8 km from the centre
- Sedgebrook Hall Hotel 5.5 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 Northampton 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 Northampton forecast and pushes an alert when the odds for tonight clear your threshold — no checking, no guessing.
Common questions about the aurora borealis in Northampton
Can you see the aurora borealis from Northampton?
Yes. On the last 10.0 years of NOAA Kp records, Northampton had about 2.7 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 Northampton?
Kp 7. Northampton sits at geomagnetic latitude 54.2°, 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 Northampton?
September, August and November. Those months scored highest once both conditions are counted together: geomagnetic activity and enough hours of real darkness. From June to July the sky over Northampton never gets fully dark, so nothing is visible however strong the storm.
Where can you escape the light pollution near Northampton?
The centre of Northampton reads Bortle 7. The nearest sky at Bortle 4 is about 95 km north-east around King's Lynn and West Norfolk. On a marginal night that drive matters more than the forecast does.
Where is the nearest place to Northampton with reliable aurora borealis?
Inverness, United Kingdom — 619 km north-north-west. It needs only Kp 5 and averages 28.7 viable nights a year against 2.7 in Northampton.
Nearby towns
Forecasts for places within reach of Northampton.