AuroraMeteo

Minnesota, United StatesMagnetic latitude 54.9°Population 1,215329 m above sea level

Northern lights in Royalton

Royalton needs an active night: from about Kp 3.7 the aurora appears low over the north horizon, and it rises higher as activity grows. Since 1995 that level (Kp 4.7) was reached during darkness here on 932 nights.

Right now

It is still light here. Darkness starts at 19:33.

Kp 0.3 · 446 km/s · Bz -2.0

Updates every minute while this page is open.

Tonight in one minute

Not tonight

  • Solar activity Too weak: Kp 1.7 expected, 3.7 needed here.
  • Sky Mostly clear (3% cloud).
  • Darkness Dark from 19:33 to 06:32.

What to do: Not tonight — your next chance is shown just below.

Tonight

Updated 10:36 local time

5/100

Unlikely

Best around 22:00. Forecast max Kp 1.7 (this place needs 3.7), average cloud 3%.

Dark enough
19:33 – 06:32
Sunset
18:29 · sunrise 07:36
Moon
31% · ↑ 14:00 · ↓ 21:57
Kp neededKp index: a 0–9 measure of geomagnetic activity. The higher it is, the further from the poles the aurora reaches.
Kp 3.7
Kp for photos
In photos: from Kp 2 (a red glow low in the north).
Look towards
north (4°)
Sat 17 Oct5Kp 1.7 · cloud 15%
Sun 18 Oct4Kp 1.7 · cloud 1%
Fri 16 19 · 2/100 · Kp 1.7 · cloud 0% Fri 16 20 · 4/100 · Kp 1.7 · cloud 0% Fri 16 21 · 4/100 · Kp 1.7 · cloud 0% Fri 16 22 · 5/100 · Kp 1.7 · cloud 0% Fri 16 23 · 5/100 · Kp 1.7 · cloud 0% Sat 17 00 · 5/100 · Kp 1.7 · cloud 0% Sat 17 01 · 2/100 · Kp 1.3 · cloud 5.5% Sat 17 02 · 3/100 · Kp 1.3 · cloud 0% Sat 17 03 · 3/100 · Kp 1.3 · cloud 0% Sat 17 04 · 3/100 · Kp 1.3 · cloud 2.3% Sat 17 05 · 2/100 · Kp 1.3 · cloud 16.4% Sat 17 06 · 1/100 · Kp 1.3 · cloud 12.5% Sat 17 19 · 2/100 · Kp 1.7 · cloud 0% Sat 17 20 · 4/100 · Kp 1.7 · cloud 0% Sat 17 21 · 4/100 · Kp 1.7 · cloud 0% Sat 17 22 · 4/100 · Kp 1.7 · cloud 0% Sat 17 23 · 5/100 · Kp 1.7 · cloud 0% Sun 18 00 · 5/100 · Kp 1.7 · cloud 0% Sun 18 01 · 3/100 · Kp 1.3 · cloud 0% Sun 18 02 · 3/100 · Kp 1.3 · cloud 1.6% Sun 18 03 · 2/100 · Kp 1.3 · cloud 10.2% Sun 18 04 · 2/100 · Kp 1.3 · cloud 10.2% Sun 18 05 · 1/100 · Kp 1.3 · cloud 74.2% Sun 18 19 · 2/100 · Kp 1.7 · cloud 0% Sun 18 20 · 4/100 · Kp 1.7 · cloud 0% Sun 18 21 · 4/100 · Kp 1.7 · cloud 0% 1218Sat 17061218Sun 18061218Mon 1906
Chance (0–100) Dark enough Cloud cover

Score = activity (NOAA Kp and OVATION) × clear sky (MET Norway) × darkness × moonlight. Methodology

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What you would see from Royalton

Facing north. Bands show where the aurora sits at two activity levels.

10°20°30°45° Kp 5.7 · high overheadKp 3.7 · 10°–20° NW 304° NW 319° NNW 334° N 349° N 4° NNE 19° NE 34° NE 49° ENE 64°
Computed from the auroral oval position for each Kp level (lower border ~105 km, ray tops ~200 km up). Terrain not modelled for this place; the horizon is drawn flat.
KpWhat you seeLower edgeRay topsDistance to the aurora
2 Faint glow, mostly on camera 3° 9° 845 km
3 Faint glow, mostly on camera 7° 15° 623 km
4 Visible to the north 13° 24° 400 km
5 Visible to the north 30° 47° 178 km
6 Overhead and all around – – –
7 Overhead and all around – – –
8 Overhead, and also to the south – – –
9 Overhead, and also to the south – – –
Angles above the horizon. Terrain in the look direction is taken into account where modelled.

The Kp scale in plain words

Kp is a 0–9 score for how strongly the Earth's magnetic field is being shaken by the solar wind. The higher it goes, the further from the poles the northern lights reach. Kp 0–2 is a quiet night; Kp 5 and above is a geomagnetic storm.

  1. Kp 0–2 Quiet next 24 h camera in Royalton Only under the auroral oval: northern Norway, Swedish and Finnish Lapland, Iceland, Alaska, northern Canada.
  2. Kp 3 Unsettled Bright in the Arctic; low on the horizon in central Scandinavia and southern Iceland.
  3. Kp 4 Active eye in Royalton Overhead in the Arctic; low in the north from southern Norway, Sweden, Finland and northern Scotland.
  4. Kp 5 Minor storm (G1) Scotland, southern Scandinavia, the Baltic states, the northern US states and southern Canada.
  5. Kp 6 Moderate storm (G2) Northern England, Denmark, northern Germany and Poland, the US Midwest — often clearer in photos than to the eye.
  6. Kp 7 Strong storm (G3) Most of the UK, the Netherlands, Germany, Poland, Czechia; red glow in photos from France and the northern Alps.
  7. Kp 8 Severe storm (G4) Central Europe to the eye; red sky in photos from northern Italy, Spain, the Balkans and Turkey's Black Sea coast.
  8. Kp 9 Extreme storm (G5) Seen across Europe and the US; in photos as far south as the Mediterranean, Turkey and North Africa (May 2024).

Light pollution

Dark rural sky. Little artificial light. Faint displays are visible once your eyes have adapted.

A noticeably darker area starts about 5 km to the north-west. Open in OpenStreetMap

Estimate from NASA VIIRS night-light data (sky-glow model within 50 km). Check access and private land before you go.

Hills and mountains

Terrain is not modelled for this place.

From elevation data (AWS Terrain Tiles) along seven lines of sight up to 30 km.

Best months to see the aurora in Royalton

Share of nights 2005–2025 that were dark, active enough here and mostly clear.

September has been the best month (16% of nights), followed by March (15%).

0%10%20%30% July: 8% Jul August: 7% Aug September: 16% Sept October: 12% Oct November: 7% Nov December: 6% Dec January: 8% Jan February: 13% Feb March: 15% Mar April: 8% Apr May: 7% May June: 6% Jun
All years Near solar maximum Near solar minimum
MonthGood nightsClear nightsDarknessLow / high
September 16% 69% 9.1 h 11° / 22°C
October 12% 55% 10.9 h 3° / 13°C
November 7% 45% 12.0 h -5° / 4°C
December 6% 41% 12.6 h -13° / -5°C
January 8% 58% 12.4 h -18° / -8°C
February 13% 66% 11.4 h -16° / -6°C
March 15% 59% 9.9 h -7° / 4°C
April 8% 53% 7.9 h 0° / 11°C
Good night = darkness + activity at this place's Kp level + night-time satellite cloud ≤ 70%. GFZ Kp, NASA POWER (CERES), 1° grid. Methodology
41%chance of ≥1 good night in 3 nights (September)
58%chance of ≥1 good night in 5 nights (September)
70%chance of ≥1 good night in 7 nights (September)

Aurora nights in Royalton since 1995

Nights when Kp reached 4.7 or more while it was dark here.

2015: 4915492016: 3116312017: 3417342018: 81882019: 1019102020: 52052021: 1121112022: 2722272023: 3423342024: 2424242025: 5025502026: 242624
Per year, last 12 years. Cloud cover not included. Source: GFZ Kp.

Most recent strong nights

Practical information

Nearest airport
Saint Cloud Regional Airport (STC) · 36 km
Typical low / high in September
11° / 22°C
What to wear
Cool nights: layers, a windproof jacket, hat and gloves for standing still outside. Full clothing guide
Emergency number
911
Winter driving
Tyre and chain rules are set at state level; check Alaska 511 (511.alaska.gov, Alaska DOT&PF) for Alaska roads, or the relevant state's 511 service elsewhere. Road conditions
Access to land
There is no general right to roam; trespass law is set by each state, so stay on public land (national parks, national forests, BLM land) or get the landowner's permission, and follow each park's night-time and parking rules.
Official space-weather service
NOAA Space Weather Prediction Center (aurora dashboard)
Weather service
National Weather Service (NOAA)

Questions and answers

What Kp do you need to see the aurora in Royalton?

Royalton needs an active night: from about Kp 3.7 the aurora appears low over the north horizon, and it rises higher as activity grows.

Which way should I look for the aurora in Royalton?

Face north (about 4° from true north). At Kp 3.7 the lower edge of the aurora sits roughly 13° above the horizon; stronger activity lifts it higher and further across the sky.

What is the best month to see the aurora in Royalton?

Over 2005–2025, September gave the best odds in Royalton (16% of nights dark, active enough and mostly clear), followed by March (15%).

When is the aurora season in Royalton?

Royalton gets dark enough for the aurora all year round, though the long winter nights give the most hours to watch.

Is there much light pollution in Royalton?

Little artificial light. Faint displays are visible once your eyes have adapted. A noticeably darker area starts about 5 km to the north-west.

When was the aurora last possible in Royalton?

Activity last reached storm level (Kp 5 or more) during darkness in Royalton on 4 October 2026 (Kp 5.0) — 932 such nights since 1995. Here the aurora also appears on many quieter nights.

Also covered by this forecast

Villages and districts around Royalton share its forecast: within a few kilometres the sky, the Kp needed and the best direction are the same.