Dark Sky Odds

Stargazing at Dovrefjell–Sunndalsfjella National Park: when is the sky clear and dark?

January is the best month for stargazing at Dovrefjell–Sunndalsfjella National Park: on average 14 clear, moonless hours of full darkness, and 7% of nights have at least two of them (ERA5, 2006–2025). The darkest spot we found there is darker than 93% of Europe’s land (NASA VIIRS 2025).

Data updated: 31 December 2025 · Sources and licences

Calculated 5 November 2026 · cloud cover ERA5 2006–2025 · night lights NASA VIIRS 2025

national park · Norway

JanuaryBest month
79Clear moonless dark hours a year
93%darker than … of Europe’s land
7%Nights with ≥ 2 such hours (January)

Month by month

MonthNights with ≥ 2 such hoursClear moonless dark hoursMoonless dark hoursOf them clear
January7%141898%
February7%91426%
March10%1410613%
April2%22011%
May0%00—
June0%00—
July0%00—
August0%0412%
September5%6848%
October9%111468%
November7%91755%
December7%122036%

No astronomical darkness (May, June, July): the Sun stays above −18° all night.

Climate, not a forecast: these are shares of past nights (ERA5 reanalysis, 2006–2025), not a prediction for a particular night. Check a forecast before you go.

Light pollution

Darker than93% of Europe’s land
Light pollutionvery dark (darkest 5–20 %)
Sky-glow index (own, VIIRS) — Darkest spot we found0.17
Sky-glow index (own, VIIRS) — at the official map point0.73
Sky-glow index (own, VIIRS) — median across the area0.47
Darkest spot we found62.342, 9.692 (map) — within the OSM boundary

Next new moons

New moonNightMoonless dark hours that nightTypical share of good nights that month
9 November 20268–9 November 202611.07%
9 December 20268–9 December 202612.77%
7 January 20277–8 January 202712.57%
6 February 20276–7 February 202710.77%
8 March 20277–8 March 20278.010%
6 April 20276–7 April 20273.72%
6 May 20275–6 May 20270.00%
4 June 20274–5 June 20270.00%
4 July 20273–4 July 20270.00%
2 August 20271–2 August 20270.00%
31 August 202731 August 2027 – 1 September 20272.20%
30 September 202729–30 September 20277.35%

Hours with the Sun below −18° and the Moon below the horizon, on the night of the new moon, at the darkest spot.

Meteor showers

ShowerPeak nightChance of a clear peak nightMoon litMoonless dark hours (Sun < −12°)Radiant max. height
Leonids17–18 November 202622%55%7.850°
Geminids *13–14 December 202618%20%12.361°
Geminids *14–15 December 202615%28%10.861°
Quadrantids3–4 January 202712%13%14.373°
Lyrids *22–23 April 202730%95%1.755°
Lyrids *23–24 April 202718%90%3.554°
Eta Aquariids *5–6 May 2027—0%0.0—
Eta Aquariids *6–7 May 2027—0%0.0—
Perseids *12–13 August 20275%84%2.056°
Perseids *13–14 August 20278%90%2.257°
Orionids21–22 October 202718%58%1.344°
Leonids *17–18 November 202722%82%0.250°
Leonids *18–19 November 202723%73%2.050°
Geminids14–15 December 202715%98%0.061°

* The peak falls in daylight in Europe, so both neighbouring nights are shown.

Clear peak night: at least 2 hours with ≤ 20 % cloud while the Sun is below −12°, on the same calendar night ± 1 in 2006–2025.

How we calculate