Dark Sky Odds

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

March is the best month for stargazing at Færder National Park: on average 36 clear, moonless hours of full darkness, and 25% of nights have at least two of them (ERA5, 2006–2025). The darkest spot we found there is darker than 47% 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
231Clear moonless dark hours a year
47%darker than … of Europe’s land
25%Nights with ≥ 2 such hours (March)

Month by month

MonthNights with ≥ 2 such hoursClear moonless dark hoursMoonless dark hoursOf them clear
January18%3018916%
February20%2714419%
March25%3611431%
April12%134230%
May0%00—
June0%00—
July0%00—
August7%62130%
September18%249625%
October20%3114921%
November18%3017317%
December20%3419717%

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 than47% of Europe’s land
Light pollutionnoticeable light glow
Sky-glow index (own, VIIRS) — Darkest spot we found4.12
Sky-glow index (own, VIIRS) — at the official map point9.43
Sky-glow index (own, VIIRS) — median across the area28
Darkest spot we found59.058, 10.525 (map) — within 10 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 202611.018%
9 December 20268–9 December 202612.520%
7 January 20277–8 January 202712.318%
6 February 20276–7 February 202710.820%
8 March 20277–8 March 20278.325%
6 April 20276–7 April 20274.812%
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 20270.07%
31 August 202731 August 2027 – 1 September 20274.27%
30 September 202729–30 September 20277.818%

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 202637%55%7.353°
Geminids *13–14 December 202623%20%11.764°
Geminids *14–15 December 202623%28%10.364°
Quadrantids3–4 January 202737%13%14.074°
Lyrids22–23 April 202753%95%1.561°
Eta Aquariids *5–6 May 202730%0%3.3-2°
Eta Aquariids *6–7 May 202738%0%3.0-2°
Perseids *12–13 August 202732%84%3.562°
Perseids *13–14 August 202733%90%2.363°
Orionids21–22 October 202725%58%2.047°
Leonids *17–18 November 202737%82%0.853°
Leonids *18–19 November 202733%73%2.353°
Geminids14–15 December 202723%98%0.064°

* 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