Full Moon
Thursday, 20 September 2040 · 18:43 local in London
2040-09-20 17:43 UTC · Europe/London
Full Moon occurs at 18:43 local time in London on 20 September. 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
-7°
At the exact phase
Illumination
100%
Full Moon
Local date
20 Sep
2040
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
Full Moon · 100% lit
Phase at 18:43 local · orientation schematic
Next moonrise
19:25
Next moonset
07:18
Next events
Calendar →Sept 2040
28
Last Quarter Moon
Above horizon05:41 local · Fri, Fri 28 Sept · Moon 61°
Oct 2040
6
New Moon
Not visible06:26 local · Sat, Sat 6 Oct · Moon -6°
Oct 2040
13
First Quarter Moon
Below horizon09:41 local · Sat, Sat 13 Oct · Moon -51°
Oct 2040
20
Full Moon
Above horizon05:50 local · Sat, Sat 20 Oct · Moon 15°