UFO Sightings in San Mateo, California
19 documented UFO sightings in San Mateo, California since 1970, peaking in 1999 (2 reports); most often described as light.
- Total sightings
- 19
- Span
- 1970–2021
- Peak year
- 1999 (2 reports)
- Dominant shape
- Light
1970–2021 · peak 1999 (2 reports)
Best documented case here
One strong report — not the whole list. Open it, then hop to related signals on the case page.
San Mateo, CA, USA
Light in the sky flashing 11 seconds as if rotating about the craft the same way a lighthouse does. object/light high in the sky moving
Open full caseSan Mateo · CA, USA
420 morning zig zag white light
San Mateo · CA, USA
Plane like object splitting into 4 pieces on fire, then coming straight down in sky together, seen by other plane which turned around,
San Mateo · CA, USA
Fireball with long tail gliding through the sky very slowly and l low in the sky. ((NUFORC Note: Chinese rocket re-entry. PD))
San Mateo · CA, USA
Fast moving light on 4th of July.
San Mateo · CA, USA
A new scooter shaped aircraft like something from the Jetsons, but more likea hemi police bike.
San Mateo · CA, USA
Star-like lights and "shooting stars" moving high across the sky.
San Mateo · CA, USA
Strange light orb over lake.
San Mateo · CA, USA
Yellow stationary light in the sky low on the horizon that was stationary for at least 10 seconds and then disappeared suddenly.
San Mateo · CA, USA
Large, dark triangular stealth aircraft with no lighting traveling south at 1500 ft just after dark.
San Mateo · CA, USA
UFO sighting and Flashing lights over San Mateo California
San Mateo · CA, USA
2 bright streaks of light with dark object above them observed in clear, cloudless sky.
San Mateo · CA, USA
Black saucer, hovering 200-300 feet from ground.
San Mateo · CA, USA
A spherical craft shot into the air from a large patch of intensely bright light.
San Mateo · CA, USA
I saw a dark triangle shaped craft with three red dots on the bottom of the craft moving at a fast speed.
San Mateo · CA, USA
Long overdue addtional info, glowing saucer shape rush hour traffic
San Mateo · CA, USA
The object was in the northern sky for approximately 1.5 hours on the evening of 10/16/99. It was saucer-like shape with a very bright
San Mateo · CA, USA
Silent Close Range White Light seen on Highway 280 south of Highway 92. Witnessed by 3.
San Mateo · CA, USA
Schools kids witness UFO