Live aurora forecast

Northern lights in Šiauliai tonight

Šiauliai County, Lithuania · 56° magnetic latitude · Kp 4–5 threshold

Aurora visibility · Šiauliai
6/9
Good chance tonight

Kp 6 exceeds the visibility threshold for Šiauliai. Head out if skies are clear and you have a dark site.

QuietStormExtreme
Threshold
Kp 4–5
Magnetic latitude
~56°N
Bz ↓ south
- nT
Solar wind
- km/s
Density
- p/cm³
Cloud
-
Conditions right now: - Kp + Bz + solar wind + cloud + moon

Updated: 6 Jul, 01:55 UTC

7-day outlook for Šiauliai

Today
6 Jul
6
Good chance
Tomorrow
7 Jul
3
Unlikely
Wed
8 Jul
3
Unlikely
Thu
9 Jul
3
Unlikely
Fri
10 Jul
3
Unlikely
Sat
11 Jul
3
Unlikely
Sun
12 Jul
3
Unlikely

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

auroratonight.space

What Kp is needed here?

Šiauliai sits at a magnetic latitude of approximately 56°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 Šiauliai but skies need to be clear and dark. Cloud cover and light pollution remain the main obstacles even when Kp is high enough.

Plan your viewing

Best dark sky sites near Šiauliai

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

Hill of Crosses - Kryžių kalnas

Get directions ↗
Bortle Class 3 - Rural sky 12 km from Šiauliai - approximately 12 minute drive

The Hill of Crosses (Kryžių kalnas) is a sacred pilgrimage site 12 km north of Šiauliai, with over 100,000 crosses of all sizes accumulated since the 19th century covering a small natural hill. The surrounding farmland is flat and dark with no settlement between the site and the horizon in any direction, and no lighting is installed at the site itself - a torch is needed to navigate safely. The sky faces north across the flat Lithuanian agricultural plain, and conditions throughout reach Bortle Class 3. A car park with toilets sits 200 m from the hill, and the site is accessible year-round at any hour.

Šiauliai reservoir north shore

Get directions ↗
Bortle Class 3-4 - Rural/suburban sky 8 km from Šiauliai centre - approximately 10 minute drive

The Šiauliai reservoir (Talšos tvenkinys) is a large artificial lake northwest of the city, and the north shore gives a water-facing north view across the reservoir surface toward open farmland. Šiauliai's light dome sits to the southeast and does not significantly affect the north-facing horizon from this position. A path runs along the shore giving several watching positions, and the reservoir is open at all hours with no barrier. Conditions from the water's edge reach Bortle Class 3-4.

Žagarė Regional Park

Get directions ↗
Bortle Class 3 - Rural sky 45 km from Šiauliai - approximately 45 minute drive

Žagarė Regional Park in northern Lithuania protects the Švėtė river valley and surrounding farmland near the Latvian border, including one of Lithuania's oldest towns and open agricultural land with burial mounds and archaeological sites. The surrounding territory is sparsely populated and the park gives Bortle Class 3 throughout, with valley positions giving northward views across flat farmland toward Latvia. The park is less visited than the more famous Aukštaitija, giving reliable quiet dark sky. It is accessible by road from Šiauliai on Route 155 north.

When to go

Best time to see the northern lights in Šiauliai

Šiauliai'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 Šiauliai'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.

Up to 8 locations

Šiauliai

Lithuania

Good chance
Kp 6 need Kp 4-5
Checking darkness…
Vilnius

Lithuania

Possible
Kp 6 need Kp 5
Checking darkness…
Nida

Lithuania

Possible
Kp 6 need Kp 5
Checking darkness…
The odds

How often does the aurora appear in Šiauliai?

Average nights per month the Kp reached Šiauliai's threshold of 4+, from 15 years of geomagnetic data (2010–2024).

3.9Jan
4.2Feb
5.2Mar
4.7Apr
0.7May
0Jun
0Jul
3.7Aug
5Sep
4.8Oct
3.9Nov
3.5Dec

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

Make it happen

Plan your trip to Šiauliai

Based on 15 years of geomagnetic data (2010–2024)

1st
March
5.2
avg aurora nights
Stay 9+ nights for 80% chance
2nd
September
5.0
avg aurora nights
Stay 9+ nights for 80% chance
3rd
October
4.8
avg aurora nights
Stay 10+ nights for 80% chance

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.

Questions

Common questions about aurora in Šiauliai

What Kp is needed for aurora in Šiauliai?
The Kp index is a global measure of geomagnetic activity on a scale from 0 (quiet) to 9 (extreme storm), updated every 3 hours. Šiauliai at 56°N magnetic latitude - the same band as Edinburgh and the Scottish Borders - needs Kp 4-5 from dark sites outside the city. From the Hill of Crosses at Bortle Class 3, Kp 4-5 conditions can produce a green arc on the northern horizon. G1 storms (Kp 5) give more reliable and structured aurora from these positions.
What is the Hill of Crosses and why is it good for aurora?
The Hill of Crosses is one of Europe's most remarkable pilgrimage sites - a small natural hill 12 km north of Šiauliai covered with over 100,000 crosses accumulated since the 19th century as an act of national and religious resistance, first against Russian Tsarist rule and later Soviet occupation. Three times the Soviets bulldozed the crosses; three times Lithuanians rebuilt them. At night the site is unlit and surrounded by flat farmland: the cross silhouettes against an active aurora display produce an unusual and atmospheric image that has no equivalent elsewhere in Europe. The site is accessible at any hour without fee.
How does Šiauliai compare to Vilnius for aurora?
Šiauliai at 56°N magnetic latitude has a lower threshold than Vilnius at 54°N - roughly one Kp point lower. The Hill of Crosses 12 km north gives an immediate dark sky foreground, whereas Vilnius requires a 70-90 km drive to reach equivalent dark sky. Šiauliai is also closer to the Baltic coast: Klaipėda and the Curonian Spit are around 130 km west. Vilnius has better transport infrastructure but Šiauliai's position in northern Lithuania gives it a genuine aurora advantage.
Has aurora been seen from the Hill of Crosses?
Yes. During the active solar period of 2023-2024, aurora has been photographed from the site on multiple occasions. The October 2024 G4 storm (Kp 8) produced aurora visible across Lithuania including from the Hill of Crosses, where the cross silhouettes appeared against red and green displays. At lower activity levels, a green arc on the northern horizon from Kp 4-5 conditions has been confirmed from the site by Lithuanian astronomy groups. The site's fame as a photography subject means aurora images from there circulate quickly on social media.
When is the best time for aurora in Šiauliai?
September to March. The equinox months of September and March give the best probability of elevated geomagnetic activity. Šiauliai has a continental climate with colder winters than the Baltic coast - cold, clear high-pressure periods are more common here than in Klaipėda. February conditions often give clear, cold nights ideal for aurora watching, particularly in combination with the equinoctial activity that builds through late February and March.
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