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Northern lights Wicklow tonight

Wicklow sits at ~53°N magnetic latitude just south of Dublin. Kp 5 is needed from the Wicklow Mountains. The practical challenge is Dublin's light dome to the north, but Glendalough valley and the Lugnaquilla massif are far enough into the mountains to give genuine dark sky. The most accessible dark site within 45 minutes of the capital. Best season: September to March.

Aurora visibility - Wicklow

Unlikely tonight

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

Current Kp

of 9

Threshold for Wicklow: Kp 5 Magnetic latitude: ~53°N Updated: 15 May, 19:40 UTC

↓ Bz — nT Solar wind — km/s Density — p/cm³ ☁ —%

Conditions right now: — Kp + Bz + solar wind + cloud + moon

7-day outlook for Wicklow

Today

15 May

Quiet

Tomorrow

16 May

Quiet

Sun

17 May

Quiet

Mon

18 May

Quiet

Tue

19 May

Quiet

Wed

20 May

Quiet

Thu

21 May

Quiet

Based on CME arrival predictions from NASA DONKI. Arrival times ±6 hours.

What Kp is needed here?

Wicklow sits at a magnetic latitude of approximately 53°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 Wicklow 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 Wicklow

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

Glendalough valley, Wicklow Mountains National Park

The Glendalough valley runs east-west through the Wicklow Mountains, with dark ridges on three sides that block Dublin's light dome to the north-east. The upper lake car park gives an open sky overhead with minimal horizon obstruction to the north. Wicklow Mountains National Park extends around the valley with no settlements inside its boundaries. The site is 45 minutes from Dublin city centre on the R115, making it the most accessible genuine dark sky location near the capital.

Lugnaquilla, Wicklow Mountains

Lugnaquilla is the highest point in Leinster at 925m, approached via the Glenmalure valley. The summit plateau sits above any valley light and gives a clear mountain horizon to the north. A long approach from Fenton's pub trailhead takes 3-4 hours return, so this is a commitment rather than a casual stop. The elevation removes most of the lower atmospheric haze that affects horizon-level aurora viewing at Wicklow's latitude.

Brittas Bay

Brittas Bay is a north-facing beach on the east Wicklow coast, 10 km south of Wicklow town. The beach faces north over the Irish Sea with no significant towns or settlements in that direction. Away from the car park lighting, the dunes provide a dark foreground. The site works best during strong storms when aurora is visible above 10 degrees elevation over the sea. It is the most practical coastal option for Wicklow aurora, though elevation and horizon clarity are less favourable than the mountain sites.

Best time to see the northern lights in Wicklow

At 53°N magnetic latitude, Wicklow 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.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

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 Wicklow'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.

Other Ireland aurora forecasts

← Ireland overview

Dublin

Unlikely

Irish capital, strong storms needed

~53°N mag. lat. Kp 6-7

Galway

Unlikely

West coast, Connemara dark sky

~53°N mag. lat. Kp 6-7

Kerry

Unlikely

Iveragh Peninsula, Valentia Island, Atlantic coast

~52°N mag. lat. Kp 5

Northern Lights Ireland

Ireland aurora hub - all counties with current Kp status.

Northern Lights Dublin Tonight

Dublin - the light dome Wicklow is trying to escape.

Northern Lights Donegal Tonight

Donegal - a higher latitude option at 55°N magnetic.

Northern Lights Kerry Tonight

Kerry - Atlantic coast alternative at 52°N magnetic.

What Is the Kp Index?

What Kp 5 means for viewing at 53°N magnetic latitude.

Common questions

Aurora from Wicklow - Glendalough, the mountains, and escaping Dublin's light dome.

Can you see the northern lights from Wicklow?

Yes, during strong geomagnetic storms. Wicklow sits at approximately 53°N magnetic latitude and requires Kp 5 from its darkest mountain sites. The Kp index is a global measure of geomagnetic activity on a scale from 0 (quiet) to 9 (extreme storm), updated every 3 hours. The main complication for Wicklow is Dublin's light dome to the north - the city sits 40 km away and produces a significant glow on the northern horizon. Getting into the Wicklow Mountains, where ridges block that glow, is usually necessary for a clear view.

What Kp is needed for aurora in Wicklow?

Kp 5 from dark mountain sites like Glendalough and the Lugnaquilla approach. From coastal locations such as Brittas Bay, where the northern horizon over the Irish Sea is open but relatively dark, Kp 5 is also the working threshold. From suburban Wicklow or anywhere with Dublin's glow on the northern horizon, Kp 6-7 is needed for aurora to be visible above the light pollution. The Wicklow Mountains act as a physical barrier to the capital's light dome and are the key factor in getting usable dark sky at this latitude.

How far from Dublin do you need to drive for dark skies in Wicklow?

Glendalough is approximately 45 minutes from Dublin city centre via the R115 and gives a meaningful improvement over suburban dark skies. The valley ridges block Dublin's northern light dome and the national park boundaries keep the surrounding area free of development. Lugnaquilla requires driving to Glenmalure and then a 3-4 hour return walk to the summit - roughly 1.5 to 2 hours from the city to the trailhead. For a car-accessible option on a storm night, Glendalough is the practical choice.

How does Wicklow compare to Donegal for aurora?

Donegal is the stronger option. At 55°N magnetic latitude, Donegal's north coast sees aurora during G2 storms (Kp 5-6) with the display sitting higher above the horizon. Wicklow at 53°N also needs Kp 5, but the aurora appears lower in the sky and the additional challenge of Dublin's light dome 40 km to the north means clear conditions at Glendalough are less forgiving than at Malin Head. Donegal also has a wider choice of accessible dark sites without needing to walk to a mountain summit.

How often does the Wicklow and Dublin area see aurora?

A few times per year during solar maximum, which peaked around 2024-2025. The G5 storm of May 2024 produced aurora visible from Dublin itself, with photographs taken from city parks during the peak of the event. That was exceptional. For typical G2 events at Kp 5-6, the Wicklow Mountains are needed to escape Dublin's light dome. Cloud cover is the primary obstacle - the east coast of Ireland is somewhat drier than the west, which gives Wicklow a modest advantage in clear-night frequency over Mayo or Kerry.