Northern lights in Pembrokeshire tonight
West Wales · 52° magnetic latitude · Kp 6-7 threshold
Kp 1 is well below the Kp 6-7 threshold needed for aurora to be visible from Pembrokeshire.
7-day outlook for Pembrokeshire
Based on CME arrival predictions from NASA DONKI. Arrival times ±6 hours.
auroratonight.space
What Kp is needed here?
Pembrokeshire sits at a magnetic latitude of approximately 52°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 6-7 before the auroral oval expands far enough south to be visible from here.
At Kp 6-7, visibility is possible from Pembrokeshire 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 Pembrokeshire
Light pollution is the biggest obstacle after cloud cover. These sites give you the best dark northern horizon within reach.
Strumble Head
Get directions ↗The lighthouse headland north-west of Fishguard faces north across the Irish Sea with open Atlantic views to the north and west. One of the darkest coastal positions in Wales. Accessible by road with a small car park at the lighthouse.
St David's and the Pembrokeshire Coast
Get directions ↗Britain's smallest city sits in a national park with minimal light pollution. The coast north and south of St David's faces west and north-west over the Irish Sea with no land between it and Ireland to the north-west and nothing but ocean to the north.
Garn Fawr hillfort
Get directions ↗An iron age hillfort on a rocky summit above Strumble Head. The elevated position at around 213 m gives 360-degree views with open Irish Sea to the north and west. Properly dark, with no nearby settlement light.
Marloes Peninsula
Get directions ↗The narrow peninsula west of Milford Haven gives open sea on three sides with north-facing cliff tops. The coast path above Marloes Sands gives clear north-westerly views over St Bride's Bay.
Best time to see the northern lights in Pembrokeshire
At 52°N magnetic latitude, Pembrokeshire sits at the lower end of regular aurora territory. Only the deep mid-winter months of November through January offer nights dark enough for aurora to be visible, and only then when a significant geomagnetic storm pushes the auroral oval this far south.
Activity peaks around the September and March equinoxes, when Earth's magnetic field geometry is most favourable for coupling with the solar wind. Events during these two windows tend to produce the strongest displays of the year for observers at Pembrokeshire's latitude.
Outside November through January, twilight is too bright for aurora viewing even during significant storms. The season is short, but the equinox months on either side of winter can extend it slightly when storm timing aligns.
Up to 8 locations
How often does the aurora appear in Pembrokeshire?
Average nights per month the Kp reached Pembrokeshire's threshold of 6+, from 15 years of geomagnetic data (2010–2024).
Counts the Kp 6+ threshold only - cloud cover and local darkness are not included.
Kp data: GFZ German Research Centre for Geosciences, CC BY 4.0
Plan your trip to Pembrokeshire
Best window
The January to March window averages 1 aurora nights - the strongest consecutive stretch of the year.
How long to stay
Aurora at this latitude requires patience - allow as many nights as possible during March.
Related pages
Northern Lights UK
Live aurora forecast hub for all UK regions.
Read →Northern Lights Wales Tonight
Wales-wide aurora forecast and dark sky overview.
Read →Northern Lights Brecon Beacons Tonight
The Brecon Beacons International Dark Sky Reserve in mid Wales.
Read →Northern Lights Photography
Pembrokeshire's dramatic coastline for aurora photography.
Read →What Is the Kp Index?
What Kp 6-7 means for viewing from west Wales.
Read →Aurora photographs from Pembrokeshire
Real photos sourced from Wikimedia Commons.
Aurora over Pembrokeshire 
Aurora over Pembrokeshire 
Aurora over Pembrokeshire 
Aurora over Pembrokeshire 
Aurora over Pembrokeshire 
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