Dark Sky Odds

Stargazing at The Broads: when is the sky clear and dark?

December is the best month for stargazing at The Broads: on average 27 clear, moonless hours of full darkness, and 18% of nights have at least two of them (ERA5, 2006–2025). The darkest spot we found there is darker than 63% 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

DecemberBest month
208Clear moonless dark hours a year
63%darker than … of Europe’s land
18%Nights with ≥ 2 such hours (December)

Month by month

MonthNights with ≥ 2 such hoursClear moonless dark hoursMoonless dark hoursOf them clear
January17%2617515%
February18%2514617%
March17%2212817%
April18%218325%
May4%41726%
June0%00—
July0%0413%
August12%146920%
September17%2211320%
October14%2115314%
November18%2617415%
December18%2718914%

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 than63% of Europe’s land
Light pollutiondark rural sky (darkest 20–50 %)
Sky-glow index (own, VIIRS) — Darkest spot we found1.89
Sky-glow index (own, VIIRS) — at the official map point3.96
Sky-glow index (own, VIIRS) — median across the area6.82
Darkest spot we found52.758, 1.608 (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 202611.018%
9 December 20268–9 December 202612.018%
7 January 20277–8 January 202711.817%
6 February 20276–7 February 202710.718%
8 March 20277–8 March 20279.017%
6 April 20276–7 April 20276.318%
6 May 20275–6 May 20273.24%
4 June 20274–5 June 20270.00%
4 July 20273–4 July 20270.00%
2 August 20271–2 August 20272.212%
31 August 202731 August 2027 – 1 September 20276.012%
30 September 202729–30 September 20278.317%

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 202640%55%6.859°
Geminids *13–14 December 202625%20%10.870°
Geminids *14–15 December 202630%29%9.770°
Quadrantids3–4 January 202728%13%12.772°
Lyrids22–23 April 202737%95%1.370°
Eta Aquariids *5–6 May 202727%0%5.58°
Eta Aquariids *6–7 May 202735%1%5.59°
Perseids *12–13 August 202720%84%3.367°
Perseids *13–14 August 202727%90%2.268°
Orionids21–22 October 202733%58%2.853°
Leonids *17–18 November 202740%82%1.559°
Leonids *18–19 November 202738%72%2.859°
Geminids14–15 December 202730%98%0.070°

* 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