Dark Sky Odds

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

March is the best month for stargazing at Jasmund National Park: on average 32 clear, moonless hours of full darkness, and 21% of nights have at least two of them (ERA5, 2006–2025). The darkest spot we found there is darker than 70% 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 · Germany

MarchBest month
181Clear moonless dark hours a year
70%darker than … of Europe’s land
21%Nights with ≥ 2 such hours (March)

Month by month

MonthNights with ≥ 2 such hoursClear moonless dark hoursMoonless dark hoursOf them clear
January10%161849%
February14%1914513%
March21%3212525%
April22%257434%
May2%3836%
June0%00—
July0%00—
August10%125522%
September19%2511023%
October15%2315215%
November11%141718%
December8%131997%

No astronomical darkness (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 than70% of Europe’s land
Light pollutiondark rural sky (darkest 20–50 %)
Sky-glow index (own, VIIRS) — Darkest spot we found1.25
Sky-glow index (own, VIIRS) — at the official map point3.74
Sky-glow index (own, VIIRS) — median across the area3.25
Darkest spot we found54.575, 13.658 (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 202610.811%
9 December 20268–9 December 202612.28%
7 January 20277–8 January 202712.010%
6 February 20276–7 February 202710.814%
8 March 20277–8 March 20278.721%
6 April 20276–7 April 20276.022%
6 May 20275–6 May 20271.82%
4 June 20274–5 June 20270.00%
4 July 20273–4 July 20270.00%
2 August 20271–2 August 20270.010%
31 August 202731 August 2027 – 1 September 20275.710%
30 September 202729–30 September 20278.319%

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 202618%55%7.057°
Geminids *13–14 December 202618%20%11.068°
Geminids *14–15 December 202617%28%9.768°
Quadrantids3–4 January 202728%13%12.874°
Lyrids22–23 April 202758%95%1.367°
Eta Aquariids *5–6 May 202740%0%5.26°
Eta Aquariids *6–7 May 202738%0%5.07°
Perseids *12–13 August 202728%84%3.265°
Perseids *13–14 August 202725%90%2.267°
Orionids21–22 October 202720%59%2.551°
Leonids *17–18 November 202718%82%1.257°
Leonids *18–19 November 202720%73%2.757°
Geminids14–15 December 202717%98%0.068°

* 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