Aurora Borealis in Dartford
United Kingdom · 51.45°, 0.21° · geomagnetic 53.3° · needs Kp 7
Tonight in Dartford
2%
Peak chance of a visible display tonight, from the same model the Revon app runs. Dartford 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 Dartford
Every night to come, scored the same way as tonight. The best of the open week is Sunday 2 Aug at 2%. Not one of the seven reaches the Kp 7 that Dartford 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 Dartford
Revon aurora model over the NOAA Kp forecast and 27-day outlook
How often the aurora borealis reaches Dartford
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, Dartford 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 11.6 | 10.3 | 8.5 | 5.9 | 2.3 | 0.0 | 0.0 | 4.7 | 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 Dartford horizon, so the sky never darkens fully. Plan around the darker half of the year.
Getting clear of the light
The sky over Dartford reads Bortle 7. Getting clear of the built-up area makes a visible difference on a marginal night.
- 55 km east → Bortle 4
- 55 km 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 Dartford. 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 Dartford 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, 729 km north-north-west in United Kingdom.
| Dartford | Inverness | |
|---|---|---|
| Kp needed | 7 | 5 |
| Nights per year | 2.7 | 28.7 |
| Geomagnetic latitude | 53.3° | 59.8° |
Confirmed reports from this area
46 verified sightings were logged within 300 km of Dartford 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 Dartford
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 Dartford.
- Stone Ness — headland4.8 km east
- Cold Harbour Point — headland6.3 km north-north-west
- Sandy Lane Pit — hill6.9 km north-north-east
- Shooters Hill — hill10.4 km west-north-west
- King George Park — park14.2 km west-north-west
- Greenwich Park — park15.1 km west-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 Dartford you will find Dartford Marshes Mediumwave Transmitter, 380kV Thames Crossing, Tower North and 380kV Thames Crossing, Tower South, and for a day when the cloud sits low, North Woolwich Old Station Museum and Shoreham Aircraft Museum 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 Dartford will do; what matters is being able to step outside and check the sky without a drive first.
- exp holiday inn dartfordbridge 1.9 km from the centre
- Holiday Inn Express Dartford Bridge 1.9 km from the centre
- Holiday Inn Express London Dartford 1.9 km from the centre
- Holiday Inn Express Dartfordbridge 1.9 km from the centre
- DoubleTree by Hilton Hotel Dartford Bridge 2.3 km from the centre
- Campanile Dartford Se London 3.1 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 Dartford 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 Dartford forecast and pushes an alert when the odds for tonight clear your threshold — no checking, no guessing.
Common questions about the aurora borealis in Dartford
Can you see the aurora borealis from Dartford?
Yes. On the last 10.0 years of NOAA Kp records, Dartford 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 Dartford?
Kp 7. Dartford sits at geomagnetic latitude 53.3°, 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 Dartford?
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 Dartford never gets fully dark, so nothing is visible however strong the storm.
Where can you escape the light pollution near Dartford?
The centre of Dartford reads Bortle 7. The nearest sky at Bortle 4 is about 55 km east. On a marginal night that drive matters more than the forecast does.
Where is the nearest place to Dartford with reliable aurora borealis?
Inverness, United Kingdom — 729 km north-north-west. It needs only Kp 5 and averages 28.7 viable nights a year against 2.7 in Dartford.
Nearby towns
Forecasts for places within reach of Dartford.