Aurora Borealis in Saffron Walden
United Kingdom · 52.02°, 0.24° · geomagnetic 53.8° · needs Kp 7
Tonight in Saffron Walden
4%
Peak chance of a visible display tonight, from the same model the Revon app runs. Saffron Walden 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 Saffron Walden
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 Saffron Walden 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 Saffron Walden
Revon aurora model over the NOAA Kp forecast and 27-day outlook
How often the aurora borealis reaches Saffron Walden
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, Saffron Walden 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 | 5.8 | 1.9 | 0.0 | 0.0 | 4.6 | 7.6 | 9.8 | 11.3 | 12.0 |
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 Saffron Walden horizon, so the sky never darkens fully. Plan around the darker half of the year.
Getting clear of the light
Saffron Walden 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.
- 18 km east — around Braintree → Bortle 5
- 78 km south-east → 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 Saffron Walden. 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 Saffron Walden 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, 671 km north-north-west in United Kingdom.
| Saffron Walden | Inverness | |
|---|---|---|
| Kp needed | 7 | 5 |
| Nights per year | 2.7 | 28.7 |
| Geomagnetic latitude | 53.8° | 59.8° |
Confirmed reports from this area
56 verified sightings were logged within 300 km of Saffron Walden 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 Saffron Walden
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 Saffron Walden.
- Castle Camps airfield — hill9.9 km east-north-east
- Great Chishill — hill11.2 km west
- Riddy Island — island17.6 km north-west
- The Island — island18.1 km north-east
- Wicken Fen National Nature Reserve — reserve32.1 km north
- Harlow Town Park — park29.0 km south-south-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. Saffron Walden keeps its fortified past above ground, at Saffron Walden Castle, Elmdon Castle Grove and Chrishall Park Wood, and for a day when the cloud sits low, Saffron Walden Museum and Audley End House and Gardens 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 Saffron Walden will do; what matters is being able to step outside and check the sky without a drive first.
- Holiday Inn Express Hague Parliament 8.2 km from the centre
- Cantilena 8.8 km from the centre
- Duxford Lodge Hotel 9.4 km from the centre
- Holiday Inn Express Cambridge-Duxford M11 Jct.10 10.3 km from the centre
- Holiday Inn Express Cambridge Duxford 10.4 km from the centre
- Travelodge Cambridge Fourwentways 11.6 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 Saffron Walden 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 Saffron Walden forecast and pushes an alert when the odds for tonight clear your threshold — no checking, no guessing.
Common questions about the aurora borealis in Saffron Walden
Can you see the aurora borealis from Saffron Walden?
Yes. On the last 10.0 years of NOAA Kp records, Saffron Walden 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 Saffron Walden?
Kp 7. Saffron Walden sits at geomagnetic latitude 53.8°, 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 Saffron Walden?
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 Saffron Walden never gets fully dark, so nothing is visible however strong the storm.
Where can you escape the light pollution near Saffron Walden?
The centre of Saffron Walden reads Bortle 6. The nearest sky at Bortle 4 is about 78 km south-east. On a marginal night that drive matters more than the forecast does.
Where is the nearest place to Saffron Walden with reliable aurora borealis?
Inverness, United Kingdom — 671 km north-north-west. It needs only Kp 5 and averages 28.7 viable nights a year against 2.7 in Saffron Walden.
Nearby towns
Forecasts for places within reach of Saffron Walden.