Dark Sky Odds

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

August is the best month for stargazing at Prokletije National Park: on average 49 clear, moonless hours of full darkness, and 36% of nights have at least two of them (ERA5, 2006–2025). The darkest spot we found there is darker than 56% 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 · Serbia

AugustBest month
404Clear moonless dark hours a year
56%darker than … of Europe’s land
36%Nights with ≥ 2 such hours (August)

Month by month

MonthNights with ≥ 2 such hoursClear moonless dark hoursMoonless dark hoursOf them clear
January20%3417320%
February21%3014920%
March18%2813721%
April15%2210820%
May13%158618%
June16%176128%
July28%347644%
August36%4910646%
September25%3812630%
October26%4615829%
November24%4416926%
December25%4618824%

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 than56% of Europe’s land
Light pollutiondark rural sky (darkest 20–50 %)
Sky-glow index (own, VIIRS) — Darkest spot we found2.70
Sky-glow index (own, VIIRS) — at the official map point3.90
Sky-glow index (own, VIIRS) — median across the area3.26
Darkest spot we found42.525, 20.108 (map) — within 2.8 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 202610.724%
9 December 20268–9 December 202611.525%
7 January 20277–8 January 202711.320%
6 February 20276–7 February 202710.721%
8 March 20277–8 March 20279.518%
6 April 20276–7 April 20277.815%
6 May 20276–7 May 20276.013%
4 June 20274–5 June 20274.516%
4 July 20273–4 July 20274.328%
2 August 20271–2 August 20275.736%
31 August 202731 August 2027 – 1 September 20277.536%
30 September 202729–30 September 20279.225%

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 202633%54%6.268°
Geminids *13–14 December 202635%20%9.880°
Geminids *14–15 December 202632%28%8.880°
Quadrantids3–4 January 202727%13%11.267°
Lyrids22–23 April 202723%95%1.282°
Eta Aquariids *5–6 May 202728%0%7.320°
Eta Aquariids *6–7 May 202728%0%7.320°
Perseids *12–13 August 202767%84%3.066°
Perseids *13–14 August 202763%90%2.067°
Orionids21–22 October 202745%59%3.564°
Leonids *17–18 November 202733%82%1.868°
Leonids *18–19 November 202735%73%3.269°
Geminids14–15 December 202732%98%0.080°

* 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