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Northern lights Donegal tonight

Donegal sits at 55°N magnetic latitude - the same threshold as northern England. Kp 5 is enough from Malin Head and the Inishowen Peninsula. Dark skies, an open Atlantic horizon, and minimal light pollution make it Ireland's prime aurora county. Best season: September to April.

Aurora visibility — Donegal

Unlikely tonight

Kp 1 is well below the Kp 5 threshold needed for aurora to be visible from Donegal.

Current Kp

1

of 9

Threshold for Donegal: Kp 5 Magnetic latitude: ~55°N Updated: 11 May, 16:06 UTC

What Kp is needed here?

Donegal sits at a magnetic latitude of approximately 55°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 5 before the auroral oval expands far enough south to be visible from here.

At Kp 5, visibility is possible from Donegal 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 Donegal

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

Malin Head

The northernmost point of Ireland at 55.4°N. The headland faces open ocean to the north with minimal light pollution in any direction. The cliff tops give a 180-degree northern sky. During G2 storms, aurora has been photographed here at low elevation above the sea horizon. Access is straightforward - a car park and short walk to the observation point.

Glenveagh National Park

Ireland's second largest national park, covering 170 square kilometres of Donegal uplands. Almost no artificial light within the park boundaries. The open moorland gives wide sky views. The park is 25 km south of Letterkenny. The car parks at Glenveagh Castle and Lough Veagh are good starting positions. Cold in winter - the valley floor can hold frost from September to May.

Inishowen Peninsula

The peninsula between Lough Swilly and Lough Foyle extends north to Malin Head. The western coast roads have open sea views to the north and northwest with low light pollution. The cliffs at Glengad Head and the beaches at Trawbreaga Bay are accessible dark sites. The peninsula is about an hour from Letterkenny on single-track roads.

Other Ireland aurora forecasts

Ireland overview Galway Dublin Cork

Related pages

Northern Lights Ireland

Ireland aurora hub - all counties with current Kp status.

Northern Lights Galway Tonight

Galway - Connemara dark sky and west coast aurora.

Northern Lights Dublin Tonight

Dublin - Irish capital aurora guide, needs Kp 6.

What Is the Kp Index?

How Kp 5 translates to visibility at 55°N magnetic latitude.

Northern Lights Viewing Tips

Planning a Donegal aurora trip - cloud cover, timing, and equipment.

Common questions

Aurora in Donegal - Malin Head, Glenveagh, and the north coast.

Can you see the northern lights in Donegal?
Yes. Donegal is Ireland's best county for aurora. At 55°N magnetic latitude, it needs Kp 5 from the Malin Head peninsula - the same threshold as northern England. During G2 storms (Kp 5-6), aurora is visible from dark sites on the north coast. The G5 storm of May 2024 produced aurora visible across the whole county including Letterkenny and Donegal Town.
What is the minimum Kp for aurora in Donegal?
Kp 5 from Malin Head and the north coast. Kp 5-6 from inland sites. At 55°N magnetic latitude, Donegal sits at the southern edge of the auroral oval during moderate geomagnetic activity. G2 storms (Kp 5-6) push the oval south enough to be visible from the Inishowen Peninsula and Glenveagh. Kp 4 events are rarely strong enough unless there is a brief sub-storm spike.
Where exactly is the best place to see aurora in Donegal?
Malin Head is the standard answer - it is Ireland's northernmost point and gives an unobstructed sea horizon to the north. For a secondary site, the moorland around Glenveagh National Park gives wide dark skies inland. The west coast headlands (Slieve League, Horn Head) face north-northwest and catch low-elevation aurora during strong storms. Drive north from Letterkenny on the R245 to reach Malin Head in about 90 minutes.
What is aurora like in Donegal compared to Scotland?
Very similar. Donegal at 55°N magnetic latitude is equivalent to the Scottish borders or southern Scotland. The main practical differences are darker skies in Donegal (less population density than lowland Scotland), an Atlantic climate that brings cloud cover (similar to the west of Scotland), and no equivalent to the Cairngorms as an upland dark sky reserve. Donegal's west coast headlands are among the best aurora sites at this latitude.
When is the best time for aurora in Donegal?
September to April for adequate darkness. March and September are statistically the most geomagnetically active months due to the Russell-McPherron effect at the equinoxes. Winter gives longer dark periods but Donegal's Atlantic climate is wetter in November to February. The clearest windows are often in late September and early October when nights are long enough and autumn high pressure brings dry spells.