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Harvest Supermoon Brightens Oct. 6–7 Skies Worldwide

NASA and national observatories said the full moon aligned near perigee, modestly boosting its apparent size and brightness even as the closest approach occurred roughly a day later in some calculations.

Overview

  • Skywatchers across the Americas and Europe reported clear views on Oct. 6–7, marking the first of three supermoons in 2025, with the next events on November 5 and December 4.
  • Published estimates said the moon appeared about 6.6% larger and roughly 13% brighter than a typical full moon, consistent with the perigee-enhanced effect.
  • Timing varied by region: EarthSky listed maximum illumination around 11:47 p.m. ET on Oct. 6, while Spain’s IGN put the peak at 05:47 on Oct. 7 (peninsular time).
  • Some services noted the closest approach occurs on Oct. 8, leading outlets to describe a ‘near’ supermoon in locales where perigee followed the full phase by about a day.
  • Regional forecasters highlighted stronger coastal tides around the event, with MeteoGalicia expecting pronounced ranges in Galicia, including up to 3.8 meters between low and high tide in Vigo on Wednesday.