UAP sightings near San Diego, CA

The Council's standing reference for unidentified aerial phenomena in the San Diego, CA metropolitan area: estimated public report counts, sky conditions, the nearest low-light-pollution observation site, and how to file a sighting that the Council can review.

The Council notes that the San Diego, CA metropolitan area — population approximately 3,286,069 — has produced an estimated 330 publicly logged unidentified aerial phenomena reports through the National UFO Reporting Center (NUFORC) and the Mutual UFO Network (MUFON) databases between 1947 and 2025. That figure is approximate. NUFORC and MUFON record only voluntary submissions, and a substantial — and unknowable — share of observations is never filed. The number functions as a floor, not a ceiling.

The San Diego metro sits at 32.7157 degrees N, 117.1611 degrees W. It is one of fifty United States metropolitan areas the Council maintains a standing sightings reference for. The page below summarises what is publicly known, what the standing data says, and how a credible local observation can be added to the record.

Notable cases

• Case #00088 — USS Omaha Go Fast

Sighting density

Across the modern record, the San Diego metro accounts for an estimated 330 publicly logged reports. Normalised to its metro population of approximately 3,286,069, that works out to roughly 10.0 reports per 100,000 residents — a rate the Council treats as broadly typical of U.S. metropolitan areas of this size.

Two things are worth saying honestly. First, per-city peak years cannot be cited with the precision that headline writers prefer; NUFORC and MUFON’s public datasets are not granular enough at the metro level to support definitive year-by-year peaks for most cities. Second, the modern UAP wave — broadly the period between the 2017 New York Times AATIP disclosures and the 2024 AARO Historical Record Report — produced a measurable national uptick in filings. The Council treats 2017-2024 as the most-cited modern reporting window across the United States as a whole. Whether that pattern is mirrored exactly in San Diego is not something we will assert without local data we cannot verify.

Local sky conditions

The San Diego core sits inside a Bortle 8-9 light-pollution zone — the standard reading for any major U.S. metro. Conventional astronomy is constrained, and routine sky-watching from inside the metro is largely confined to the brightest objects: the Moon, Venus, Jupiter, Mars, and the brighter satellite passes. Most reports filed from within the metro core are of low-altitude lights, formations, or aircraft-adjacent anomalies rather than deep-sky phenomena.

The nearest publicly recognised dark-sky observation site is Anza-Borrego Desert State Park, CA, generally a Bortle 1-3 location on clear nights. Observers willing to drive to a designated dark-sky park materially improve both the quality of what they can see and the credibility of any submission they later file.

The most usable sky-condition window for the broader region is generally October-April, when high pressure dominates and humidity, smoke, and persistent overcast are at their lowest. The Council does not recommend filing reports from observation sessions conducted in marginal weather; ambiguous conditions produce ambiguous data.

What to do next

If you have observed something in the San Diego-area sky that you cannot account for, the Council asks two things.

First, file the sighting — either to NUFORC, to MUFON, or directly to the Council via /sighting/new. The Council’s Filing a Sighting field guide covers what data to capture: time-stamp, exact coordinates, bearing, elevation, duration, witness count, weather, and any photographic or video record. Reports filed without those fields are not dismissed, but they are weighted lower by the verdict engine.

Second, carry recording gear next time. The single most-cited gap in submitted reports is the absence of corroborating media. The Council’s standing recommendation for San Diego-area observers is the SiOnyx Aurora Pro digital night vision camera — selected on the basis that it pairs directly with the sky conditions described above and produces the kind of evidence the Council can review.

The record of unidentified aerial phenomena is a public archive built one credible filing at a time. The San Diego metro’s contribution to it is, at present, what its observers have made it.