Aurora Tonight
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Northern lights Brighton tonight

Brighton sits at ~50°N magnetic latitude - near the southern limit for aurora in the UK. Kp 7-8 is the practical threshold. Ditchling Beacon on the South Downs is 15 minutes north and the fastest dark sky escape from the city.

Aurora visibility — Brighton

Unlikely tonight

Kp 1 is well below the Kp 7-8 threshold needed for aurora to be visible from Brighton.

Current Kp

1

of 9

Threshold for Brighton: Kp 7-8 Magnetic latitude: ~50°N Updated: 10 May, 11:04 UTC

What Kp is needed here?

Brighton sits at a magnetic latitude of approximately 50°N. The Kp index - a global measure of geomagnetic activity on a scale from 0 (quiet) to 9 (extreme storm), updated every 3 hours - needs to reach Kp 7-8 before the auroral oval expands far enough south to be visible from here.

At Kp 7-8, visibility is possible from Brighton but skies need to be clear and dark. Cloud cover and light pollution remain the main obstacles even when Kp is high enough.

Best dark sky sites near Brighton

Light pollution is the biggest obstacle after cloud cover. These sites give you the best dark northern horizon within reach.

South Downs - Ditchling Beacon

The National Trust escarpment above Brighton, about 15 minutes north. Ditchling Beacon at 248 m is the highest point on the East Sussex Downs. The northern scarp gives views over the Weald with minimal light pollution to the north - the quickest dark sky escape from Brighton.

Chanctonbury Ring

An iron age hillfort on the South Downs ridge west of Brighton, about 30 minutes by car. Open chalk downland at around 240 m with north-facing views and very little settlement to the north.

Beachy Head

The chalk headland east of Brighton faces south and east but gives an open horizon in all directions from the clifftop. The northern sky is dark as there is very little development inland behind Beachy Head. About 25 minutes east of Brighton.

Ashdown Forest

The High Weald forest north of Brighton, about 35 minutes north via the A23 and A22. The open heathland gives Bortle 4-5 conditions and an elevated position above the surrounding woodland. One of the darker areas in the South-East.

Other UK aurora forecasts

UK overview London Southampton Cambridge

Related pages

Northern Lights UK

Live aurora forecast hub for all UK regions.

Northern Lights London Tonight

London is just north of Brighton with a similar threshold.

Northern Lights Southampton Tonight

Southampton is west with New Forest dark sky access.

What Is the Kp Index?

Why Kp 7-8 is needed at 50°N magnetic latitude.

Best Time to See Northern Lights UK

When extreme storms producing south England aurora are most likely.

Common questions

Aurora watching from Brighton and the South-East.

Can you see the northern lights from Brighton?
Only during exceptional geomagnetic storms (Kp 8-9+). Brighton sits at ~50°N magnetic latitude - near the southern limit for aurora in the UK. During the May 2024 storm (Kp 9) aurora was reported across Sussex. For Kp 7-8, Ditchling Beacon or Ashdown Forest give better conditions than the seafront.
What Kp is needed for aurora near Brighton?
Kp 7-8 from dark sites such as Ditchling Beacon or Ashdown Forest. Brighton is at ~50°N magnetic latitude and requires a strong geomagnetic storm. At Kp 8+ the auroral oval extends far enough south that displays become possible even from the seafront.
Where near Brighton is best for aurora?
Ditchling Beacon on the South Downs is the quickest elevated dark site - 15 minutes north of the city. For darker conditions, Ashdown Forest is 35 minutes north with Bortle 4-5 skies. The South Downs ridge gives the best combination of elevation, north-facing horizon, and low travel time.
Is the South Downs good for aurora?
For the South-East of England, yes. The chalk ridge gives the most elevated accessible positions in the region. Ditchling Beacon and Chanctonbury Ring give open northern views across the Weald with lower light pollution than the coastal strip. For Kp 7-8 they are the realistic option within range of Brighton.
When has aurora been seen from Brighton?
The May 2024 storm (Kp 9) produced widespread aurora reports from Sussex, including from Brighton seafront. The September 2023 event was visible from the South Downs. Both were exceptional storms. Regular Kp 6 events do not typically extend to Brighton's latitude.