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Lunar phaseBelow horizon at event timeDefault location · London

Full Moon

Sunday, 31 May 2026 · 09:45 local in London

2026-05-31 08:45 UTC · Europe/London

Full Moon occurs at 09:45 local time in London on 31 May. The Moon is opposite the Sun and fully illuminated. It is easy to see all night, but surface contrast is lowest because sunlight is nearly head-on.

Moon altitude

-47°

At the exact phase

Illumination

100%

Full Moon

Local date

31 May

2026

Viewing tips

  • No dark adaptation is needed — the Moon is bright.
  • Use a moon filter if the glare is uncomfortable through a telescope.
  • Look for bright ray systems such as Tycho and Copernicus.

Visibility, honestly

Below the horizon at the exact moment — look near moonrise or moonset.

A phase is a global instant; whether it is above your horizon depends on location. Weather is not included here. Check the tonight outlook for cloud cover and a viewing score. No eclipse or conjunction claim is made on this page.

Phase times from Astronomy Engine. Rise/set and altitude use atmospheric refraction. Method