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KNUC ·

San Clemente Island Naval Auxiliary Landing Field

33.02270°N
-118.58800°W
ARR / DAY
8
▼ 33.3%
DEP / DAY
7
▼ 30.0%

San Clemente Island Naval Auxiliary Landing Field (KNUC) is a small general aviation airport located in San Clemente Island, CA, 56 mi south west of Huntington Beach. It features 1 runway measuring 9,301 feet. SkyMeter has observed roughly 8 arrivals and 7 departures per day on average over the last 1 days.

Safety incidents

Last 1 days · 0 total

NORMAL
↻
Go-arounds
0
✕
Rejected takeoffs
0
△
Unstable approaches
0
↺
Return to field
0

Current weather

Latest METAR observation

16h ago
Temp
73°F
Wind
4 kts
270°
Visib
10+ km
Ceil
—
METAR KNUC 160056Z 27004KT 10SM BKN025 23/18 A2992 RMK SLPNO LAST T02280183

Runways

1 installed

9,301 FT MAX
05/23
9,301 ft × 200
CON● LIT

Runway intelligence

Which runway carries the operations, observed over the last 30 days

24
52% of ops
131 land · 53 TO
23
47% of ops
117 land · 55 TO
06
1% of ops
2 land · 60 TO
05
0% of ops
0 land · 49 TO
Runway 24 carries 52% of operations (131 landings, 53 takeoffs) over the last 30 days. The next most-used is 23 at 47%.

Approach quality

Per-runway unstable-approach, go-around, and long-rollout rates

24 131 landings
UA 12%GA 0.8%
23 117 landings
UA 12%GA 1.7%
06 2 landings
UA 0%
05 0 landings
UA 0%
Approaches to 24 show a 12% unstable-approach rate (16 UA events from 131 landings).Phase B will add wind-correlation: which crosswind band produces most UA events.

Traffic behavior

When the field is busy: hourly + weekday vs weekend

Daily avg
10.8
flights/day · 323 total
Busy hour (local)
3pm
also 5pm · 9pm
Day vs night
63%
06:00–20:00 local
Traffic concentrates around 3pm–9pm local, averaging 10.8 flights/day. Weekend volume runs 0.0× weekday (0.0 vs 15.4 daily).

Aircraft character

What's actually flying here: top types over the last 30 days

143 · 44%
87 · 27%
28 · 9%
14 · 4%
13 · 4%
11 · 3%
Activity is led by (44% of 322 flights). Top three types: , , .

Communications Frequencies

2026-06-11
Type Freq (MHz) Hours
TWR 126.750 0800-1800 MON-THU; 0800-1600 FRI; CLSD WKEND & HOL, OTHER TIMES BY NOTAM.
TWR 278.800 0800-1800 MON-THU; 0800-1600 FRI; CLSD WKEND & HOL, OTHER TIMES BY NOTAM.
TWR 340.200 0800-1800 MON-THU; 0800-1600 FRI; CLSD WKEND & HOL, OTHER TIMES BY NOTAM.
GND 119.550 0800-1800 MON-THU; 0800-1600 FRI; CLSD WKEND & HOL, OTHER TIMES BY NOTAM.
GND 251.050 0800-1800 MON-THU; 0800-1600 FRI; CLSD WKEND & HOL, OTHER TIMES BY NOTAM.
ATIS 268.600 0800-1800 MON-THU; 0800-1600 FRI; CLSD WKEND & HOL, OTHER TIMES BY NOTAM.
APCH 127.050 0800-1800 MON-THU; 0800-1600 FRI; CLSD WKEND & HOL, OTHER TIMES BY NOTAM.
APCH 292.150 0800-1800 MON-THU; 0800-1600 FRI; CLSD WKEND & HOL, OTHER TIMES BY NOTAM.
EMERG 121.500 0800-1800 MON-THU; 0800-1600 FRI; CLSD WKEND & HOL, OTHER TIMES BY NOTAM.
LCL/P 126.750 0800-1800 MON-THU; 0800-1600 FRI; CLSD WKEND & HOL, OTHER TIMES BY NOTAM.
EMERG 243.000 0800-1800 MON-THU; 0800-1600 FRI; CLSD WKEND & HOL, OTHER TIMES BY NOTAM.
LCL/P 278.800 0800-1800 MON-THU; 0800-1600 FRI; CLSD WKEND & HOL, OTHER TIMES BY NOTAM.
LCL/S 340.200 0800-1800 MON-THU; 0800-1600 FRI; CLSD WKEND & HOL, OTHER TIMES BY NOTAM.
Airport operations
ARTCC:
ZLA
Mag var:
12° E

Hourly traffic

Avg movements per hour · local time · last 30 days

12a 1a 2a 3a 4a 5a 6a 7a 8a 9a 10a 11a 12p 1p 2p 3p 4p 5p 6p 7p 8p 9p 10p 11p
© SkyMeter · All flight data subject to ODbL attribution · Updated 17:21 UTC