Northern lights Shiretoko tonight
Shiretoko Peninsula sits at 44° magnetic latitude - the same threshold as Abashiri, with one important difference: Bortle Class 1-2 sky. The UNESCO World Heritage wilderness has no settlement past Utoro, making the Five Lakes area and the Utoro coast the darkest easily accessible aurora positions in Hokkaido. The Kp threshold is 6. Aurora here is not a nightly occurrence - sign up for a push notification so you know when conditions are met. Best season: October to March.
Aurora visibility - Shiretoko
Unlikely tonight
Kp 1 is well below the Kp 6 threshold needed for aurora to be visible from Shiretoko.
Current Kp
1
of 9
7-day outlook for Shiretoko
Today
3 Jun
Tomorrow
4 Jun
Fri
5 Jun
Sat
6 Jun
Sun
7 Jun
Mon
8 Jun
Tue
9 Jun
Based on CME arrival predictions from NASA DONKI. Arrival times ±6 hours.
auroratonight.space
What Kp is needed here?
Shiretoko sits at a magnetic latitude of approximately 44°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 6 before the auroral oval expands far enough south to be visible from here.
At Kp 6, visibility is possible from Shiretoko 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 Shiretoko
Light pollution is the biggest obstacle after cloud cover. These sites give you the best dark northern horizon within reach.
Utoro coastline
Get directions ↗Utoro is the main settlement on the western side of Shiretoko Peninsula. The coastline faces north over the Sea of Okhotsk with no significant light source on the horizon. Bortle Class 2. The car park at the cape north of Utoro gives an unobstructed north-facing position above the sea. In winter the drift ice that arrives in January-February extends the dark foreground further. The small amount of illumination from the village is low and directed downward; moving 1-2 km north of the main settlement eliminates it entirely. This is among the darkest accessible coastal positions on Hokkaido.
Shiretoko Five Lakes (Goko)
Get directions ↗The Shiretoko Five Lakes area is 12 km from Utoro along the peninsula road. At night the elevated boardwalk gives a platform above the surrounding forest canopy with an unobstructed northern view. Bortle Class 1-2. The lake surfaces reflect aurora when conditions are calm. The peninsula road beyond the Five Lakes is closed in winter (October to May), making the Five Lakes the furthest accessible point from Utoro by car. The absence of any settlement within 15 km in any direction gives conditions comparable to the most remote spots in Hokkaido.
Kamuiwakka Falls approach road
Get directions ↗The road to Kamuiwakka Falls continues beyond the Five Lakes in summer, reaching further into the interior of the peninsula. This road is closed October to late May, limiting winter access. When the road is open in early autumn (September to mid-October), positions along it give Bortle Class 1-2 conditions with an open north-facing horizon above the tree line on the coastal ridges. For winter visits, the Five Lakes area (12 km from Utoro) gives the best accessible dark sky on the peninsula. Note the road closure before planning - checking the Shiretoko Nature Centre website is advised.
Best time to see the northern lights in Shiretoko
At 44°N magnetic latitude, Shiretoko 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.
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 Shiretoko'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 Japan aurora forecasts
← Japan overviewHow often does aurora appear in Shiretoko?
Average nights per month when Kp reaches 6+ - based on 15 years of data
Best month
March
Average aurora nights per year
5
Kp threshold
6+
Based on 15 years of geomagnetic data (2010-2024). Shows nights when Kp reached 6+ at any point in the day - cloud cover and local darkness not included. Months with no astronomical darkness show zero.
Kp data: GFZ German Research Centre for Geosciences, CC BY 4.0
Plan your trip to Shiretoko
Based on 15 years of geomagnetic data
March
0.5
avg aurora nights
Requires an extended stay
September
0.5
avg aurora nights
Requires an extended stay
January
0.4
avg aurora nights
Requires an extended stay
Best window
The January to March window averages 1 aurora nights - the strongest consecutive stretch of the year.
How long to stay
Aurora at this latitude requires patience - allow as many nights as possible during March.
Related pages
Northern Lights Japan
Japan aurora hub - Hokkaido forecast and threshold guide.
Northern Lights Abashiri Tonight
Abashiri - northeast Hokkaido coast, Kp 6, drift ice season.
Northern Lights Hokkaido Tonight
Hokkaido overview - thresholds from Wakkanai to Hakodate.
Northern Lights Alert
Push notifications when Kp 6 is reached - set your threshold.
Japan Northern Lights Guide
Full guide to aurora in Japan - when, where, and realistic expectations.
Common questions
Aurora at Shiretoko - Japan's darkest accessible wilderness and what Kp 6 means in practice.
