A supermoon rises above the downtown San Diego cityscape on Dec. 3, 2017. (File photo by Chris Stone/Times of San Diego)
The last full moon of 2025 — and the year’s final “supermoon” — will be visible Thursday night in San Diego.
The Moon will rise at 3:28 p.m., before it’s dark, and be clearly visible in the eastern sky after sunset at 4:42 p.m.
The National Weather Service forecast calls for partly cloudy conditions along the coast in inland, but clear skies over the mountains and deserts.
According to NASA, a supermoon occurs when the Moon is full at its closest approach to Earth. During every 27-day elliptical orbit around Earth, the Moon’s distance varies from 226,000 miles to 251,000 miles.
While the Moon will appear 14% larger than normal — about the difference between a nickel and a quarter — don’t expect a dramatic change in appearance.
“You probably won’t notice a big difference in size,” NASA says, but “it will appear a bit brighter than usual.”
Supermoons happen three to four times a year, and always appear consecutively. There will be another supermoon in January, and then again next November and December.
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