Dark Sky Odds

Stargazing at Špakovska parks: when is the sky clear and dark?

March is the best month for stargazing at Špakovska parks: on average 33 clear, moonless hours of full darkness, and 20% of nights have at least two of them (ERA5, 2006–2025). The darkest spot we found there is darker than 12% 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 · Latvia

MarchBest month
151Clear moonless dark hours a year
12%darker than … of Europe’s land
20%Nights with ≥ 2 such hours (March)

Month by month

MonthNights with ≥ 2 such hoursClear moonless dark hoursMoonless dark hoursOf them clear
January8%121887%
February11%1614511%
March20%3311927%
April21%226136%
May0%00—
June0%00—
July0%00—
August9%93625%
September18%2510424%
October11%1915012%
November6%81734%
December6%81894%

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 than12% of Europe’s land
Light pollutionstrong light pollution
Sky-glow index (own, VIIRS) — Darkest spot we found23
Sky-glow index (own, VIIRS) — at the official map point77
Sky-glow index (own, VIIRS) — median across the area65
Darkest spot we found56.842, 24.608 (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 202611.06%
9 December 20268–9 December 202612.36%
7 January 20277–8 January 202712.28%
6 February 20276–7 February 202710.711%
8 March 20277–8 March 20278.520%
6 April 20276–7 April 20275.721%
6 May 20276–7 May 20270.00%
4 June 20274–5 June 20270.00%
4 July 20273–4 July 20270.00%
2 August 20271–2 August 20270.09%
31 August 202731 August 2027 – 1 September 20275.09%
30 September 202729–30 September 20278.018%

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 20267%54%7.255°
Geminids *13–14 December 202613%20%11.566°
Geminids *14–15 December 202612%28%10.266°
Quadrantids3–4 January 202717%13%13.374°
Lyrids *22–23 April 202748%95%1.564°
Lyrids *23–24 April 202743%90%2.864°
Eta Aquariids *5–6 May 202737%0%4.32°
Eta Aquariids *6–7 May 202743%0%4.23°
Perseids *12–13 August 202725%84%3.364°
Perseids *13–14 August 202733%90%2.264°
Orionids21–22 October 202720%59%2.349°
Leonids *17–18 November 20277%83%1.055°
Leonids *18–19 November 202710%73%2.555°
Geminids14–15 December 202712%98%0.066°

* 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