Aurora Borealis in Kronoberg

Sweden · 56.86°, 14.38° · geomagnetic 56.2° · needs Kp 7

Tonight in Kronoberg

10%

Peak chance of a visible display tonight, from the same model the Revon app runs. Kronoberg needs Kp 7 to see anything at all, and tonight the forecast peaks at Kp 4.8. Short of the threshold, which is what most nights look like here.

Tonight Tue 08 Sep
10%
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Get the full 30-night forecast in Revon

Updated 2026-09-08 10:35 UTC

How often the aurora borealis reaches Kronoberg

2.5 nights a year, averaged across 10.0 years of records

Storm levelNights / year
Kp 483.4
Kp 528.7
Kp 69.3
Kp 73.2
Kp 81.2

NOAA planetary Kp, 2016-04-02 to 2026-03-30

Wait for an alert; do not book a week

At Kp 7, Kronoberg needs a severe geomagnetic storm before anything shows above the northern horizon. Storms that size arrive a handful of times per solar cycle and announce themselves a day or two ahead. Watching for one beats picking dates and hoping.

Hours of true darkness, month by month

JanFebMarAprMayJunJulAugSepOctNovDec
11.910.38.04.50.00.00.02.36.99.611.512.3

Solar declination and hour angle at −18°

Nothing to see from May to July

Through those months the sun never falls more than 18° below the Kronoberg horizon, so the sky never darkens fully. Plan around the darker half of the year.

Getting clear of the light

The sky over Kronoberg reads Bortle 6. Getting clear of the built-up area makes a visible difference on a marginal night.

Falchi 2016 World Atlas (DOI: 10.5880/GFZ.1.4.2016.001)

The months that actually deliver

Counting only nights that were both stormy enough and dark enough, September, November and August came out ahead in Kronoberg. That is storm season and darkness overlapping — the equinoxes tend to be geomagnetically active, and the nights are already long by then.

Darkest nights of the coming year

A bright moon washes out a weak display as effectively as street lighting. These new moons fall inside the Kronoberg viewing season.

Where it is close to a certainty

If you would rather plan a trip than wait for a storm, the nearest place with genuinely frequent aurora is Inverness, 1,120 km west-north-west in United Kingdom.

KronobergInverness
Kp needed75
Nights per year2.5 28.7
Geomagnetic latitude56.2° 59.8°

See the Inverness forecast

Confirmed reports from this area

7 verified sightings were logged within 300 km of Kronoberg between 2015-01-01 and 2016-12-31. Rare is not the same as impossible.

Aurorasaurus verified positive reports

Where the horizon opens up near Kronoberg

The display sits low on the northern horizon, so what beats a better forecast is open ground facing that way. Height gets you above the town glow; water gives you an unbroken skyline. These are within a short drive of Kronoberg.

Places from GeoNames (CC BY 4.0)

The last nights it was visible here

Nights in the last decade when the storm was strong enough for Kronoberg and the sky was dark enough to show it.

DatePeak
2026-03-20Kp 7.0
2026-01-20Kp 7.67
2026-01-19Kp 8.67
2025-11-12Kp 7.33
2025-11-11Kp 8.67

NOAA planetary Kp

Aurora forecasts across Kronoberg

All 2 places in Kronoberg with a forecast page, and the Kp each one needs.

Know when it is worth going outside

Revon watches the Kronoberg forecast and pushes an alert when the odds for tonight clear your threshold — no checking, no guessing.

Get aurora alerts on iPhone

Common questions about the aurora borealis in Kronoberg

Can you see the aurora borealis from Kronoberg?

Yes. On the last 10.0 years of NOAA Kp records, Kronoberg had about 2.5 nights a year when the storm was strong enough and the sky dark enough at the same time.

What Kp index do you need to see the aurora borealis in Kronoberg?

Kp 7. Kronoberg sits at geomagnetic latitude 56.2°, and the auroral oval only reaches that far from the pole once activity hits Kp 7. Storms that size occur about 3.2 nights a year.

When is the best time of year to see the aurora borealis in Kronoberg?

September, November and August. Those months scored highest once both conditions are counted together: geomagnetic activity and enough hours of real darkness. From May to July the sky over Kronoberg never gets fully dark, so nothing is visible however strong the storm.

Where can you escape the light pollution near Kronoberg?

The centre of Kronoberg reads Bortle 6. The nearest sky at Bortle 4 is about 18 km north-north-east around Alvesta kommun. On a marginal night that drive matters more than the forecast does.

Where is the nearest place to Kronoberg with reliable aurora borealis?

Inverness, United Kingdom — 1,120 km west-north-west. It needs only Kp 5 and averages 28.7 viable nights a year against 2.5 in Kronoberg.

Nearby towns

Forecasts for places within reach of Kronoberg.