Northern lights in Riga tonight
Riga, Latvia · 58° magnetic latitude · Kp 4–5 threshold
Kp 1 is well below the Kp 4–5 threshold needed for aurora to be visible from Riga.
7-day outlook for Riga
Based on CME arrival predictions from NASA DONKI. Arrival times ±6 hours.
auroratonight.space
What Kp is needed here?
Riga sits at a magnetic latitude of approximately 58°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 4–5 before the auroral oval expands far enough south to be visible from here.
At Kp 4–5, visibility is possible from Riga 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 Riga
Light pollution is the biggest obstacle after cloud cover. These sites give you the best dark northern horizon within reach.
Cape Kolka (Kolkasrags)
Get directions ↗The northern tip of the Courland Peninsula, 180 km north-west of Riga along the P128 coast road. Cape Kolka faces north-west over the Baltic Sea at the point where the Gulf of Riga meets the open Baltic. Slītere National Park surrounds the cape with Bortle 2 sky - one of the darkest accessible positions in Latvia. The Kolka lighthouse area gives an elevated north-west-facing position. This is Latvia's best aurora viewing spot: the combination of northernmost latitude (57.7°N geographic), open ocean horizon, and deep darkness is the equivalent of a Scottish headland. The 2-hour drive from Riga is the trade-off.
Gauja National Park (Vidzeme)
Get directions ↗Latvia's largest national park, 60 km north-east of Riga via the A2 highway to Sigulda. The open areas above the Gauja river valley give north-facing sky with Bortle 3-4 conditions. The park town of Sigulda is 50 km from Riga - accessible in under an hour. Less dark than Cape Kolka but practical for a quick response when a storm develops unexpectedly on a clear evening. The hill ridges above the valley give unobstructed northern horizons.
Jūrmala coast (Gulf of Riga)
Get directions ↗The resort town of Jūrmala, 30 km west of Riga along the A10 motorway, faces north over the Gulf of Riga. The pine forest beach gives modest darkness (Bortle 4-5) and a north-facing open water horizon. The quickest dark-sky option from central Riga - 30 minutes by car or train. At Kp 5+ aurora may appear on the northern horizon across the gulf despite the moderate light pollution. Best suited as a fallback when a stronger storm develops unexpectedly and driving further is not possible.
Best time to see the northern lights in Riga
Riga's aurora season runs from late September through to March, when nights are long enough for truly dark skies. The equinox months, September and March, bring a natural boost in geomagnetic activity, making them statistically the best of the season. Summer months bring too much twilight for aurora to be visible at this latitude.
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 Riga's latitude.
April through August brings persistent astronomical twilight that washes out aurora completely. Even strong events (Kp 6+) remain invisible during this period because the sky never gets dark enough.
Other Baltic aurora forecasts
How often does the aurora appear in Riga?
Average nights per month the Kp reached Riga's threshold of 4+, from 15 years of geomagnetic data (2010–2024).
Counts the Kp 4+ 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 Riga
Best window
The February to April window averages 14 aurora nights - the strongest consecutive stretch of the year.
How long to stay
For your best chance in March, plan at least 9 nights.
Related pages
Northern Lights Latvia
Latvia aurora hub - Cape Kolka and Gauja.
Read →Northern Lights Tallinn Tonight
Tallinn - lower threshold at 60°N, Kp 3-4.
Read →Northern Lights Finland
Finland - Helsinki to Lapland.
Read →What Is the Kp Index?
How Kp 4-5 translates to aurora visibility at 58°N.
Read →Northern Lights Viewing Tips
Dark sites, timing, and what to look for.
Read →Aurora photographs from Riga
Real photos sourced from Wikimedia Commons.
Aurora over Riga 
Aurora over Riga 
Aurora over Riga 
Aurora over Riga 
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