Dark Sky Odds

Stargazing at Skarvan and Roltdalen National Park: when is the sky clear and dark?

March is the best month for stargazing at Skarvan and Roltdalen National Park: on average 10 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 75% 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

MarchBest month
47Clear moonless dark hours a year
75%darker than … of Europe’s land
7%Nights with ≥ 2 such hours (March)

Month by month

MonthNights with ≥ 2 such hoursClear moonless dark hoursMoonless dark hoursOf them clear
January5%81914%
February5%61415%
March7%1010410%
April2%21512%
May0%00—
June0%00—
July0%00—
August0%014%
September5%5797%
October6%71445%
November4%51773%
December3%32052%

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 than75% of Europe’s land
Light pollutiondark rural sky (darkest 20–50 %)
Sky-glow index (own, VIIRS) — Darkest spot we found0.91
Sky-glow index (own, VIIRS) — at the official map point1.93
Sky-glow index (own, VIIRS) — median across the area1.92
Darkest spot we found63.125, 11.508 (map) — within 12 km of the Wikidata point (no OSM boundary)

Next new moons

New moonNightMoonless dark hours that nightTypical share of good nights that month
9 November 20268–9 November 202611.24%
9 December 20268–9 December 202612.73%
7 January 20277–8 January 202712.55%
6 February 20276–7 February 202710.75%
8 March 20277–8 March 20278.07%
6 April 20276–7 April 20273.02%
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 20271.30%
30 September 202729–30 September 20277.05%

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 202610%55%7.849°
Geminids *13–14 December 20263%20%12.560°
Geminids *14–15 December 20262%28%11.060°
Quadrantids3–4 January 20277%13%14.573°
Lyrids *22–23 April 202725%95%1.853°
Lyrids *23–24 April 202717%90%3.253°
Eta Aquariids *5–6 May 2027—0%0.0—
Eta Aquariids *6–7 May 2027—0%0.0—
Perseids *12–13 August 20270%84%0.552°
Perseids *13–14 August 20270%90%1.354°
Orionids21–22 October 202712%58%1.243°
Leonids *17–18 November 202710%82%0.049°
Leonids *18–19 November 202713%73%1.849°
Geminids14–15 December 20272%98%0.060°

* 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