Dark Sky Odds

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

January is the best month for stargazing at New Forest National Park: on average 30 clear, moonless hours of full darkness, and 19% of nights have at least two of them (ERA5, 2006–2025). The darkest spot we found there is darker than 46% 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 · United Kingdom

JanuaryBest month
243Clear moonless dark hours a year
46%darker than … of Europe’s land
19%Nights with ≥ 2 such hours (January)

Month by month

MonthNights with ≥ 2 such hoursClear moonless dark hoursMoonless dark hoursOf them clear
January19%3018316%
February19%2714519%
March19%2913022%
April21%248927%
May8%93328%
June0%00—
July4%41622%
August14%167821%
September19%2611822%
October16%2515216%
November17%2616815%
December16%2618314%

No astronomical darkness (June): 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 than46% of Europe’s land
Light pollutionnoticeable light glow
Sky-glow index (own, VIIRS) — Darkest spot we found4.31
Sky-glow index (own, VIIRS) — at the official map point16
Sky-glow index (own, VIIRS) — median across the area11
Darkest spot we found50.958, -1.758 (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 202610.817%
9 December 20268–9 December 202611.816%
7 January 20277–8 January 202711.819%
6 February 20276–7 February 202710.819%
8 March 20277–8 March 20279.019%
6 April 20276–7 April 20276.821%
6 May 20275–6 May 20273.88%
4 June 20274–5 June 20270.00%
4 July 20273–4 July 20270.04%
2 August 20271–2 August 20273.214%
31 August 202731 August 2027 – 1 September 20276.314%
30 September 202729–30 September 20278.519%

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 202642%55%6.761°
Geminids *13–14 December 202613%20%10.772°
Geminids *14–15 December 202617%29%9.572°
Quadrantids3–4 January 202735%13%12.372°
Lyrids22–23 April 202740%95%1.372°
Eta Aquariids *5–6 May 202735%0%6.011°
Eta Aquariids *6–7 May 202725%1%6.012°
Perseids *12–13 August 202735%84%3.267°
Perseids *13–14 August 202738%90%2.068°
Orionids21–22 October 202733%58%3.055°
Leonids17–18 November 202742%82%1.561°
Geminids14–15 December 202717%98%0.072°

* 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