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San Nicolas Island Nolf Airport Private

NSI · KNSI · San Nicolas Island, CA · 506 ft elevation · var 12E · Towered

Airport information

ICAO / IATA
KNSI
Coordinates
33.2398, -119.4580
Elevation
506 ft MSL
Magnetic variation
12E
Sectional chart
LOS ANGELES
Airport use
Private
Control tower
Yes
ARTCC
LOS ANGELES (ZLA)
Flight service (FSS)
HAWTHORNE
NOTAM facility
NSI
Beacon
S-white-green (SS-SR)
Segmented circle
No
Activated
1941/05
Distance from city
0 E

Weather

METAR observed

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TAF forecast

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Sun & FAA night 2026-06-21

EventLocal (PDT)UTC
Morning civil twilight
Loggable night ends
05:20 AM12:20Z
Sunrise05:49 AM12:49Z
Sunset08:10 PM03:10Z
Evening civil twilight
Loggable night begins
08:39 PM03:39Z
Loggable night (§1.1)
08:39 PM → 05:20 AM
Night currency (§61.57)
09:10 PM → 04:49 AM

Plan a flight from KNSI

Night operations

Airport lighting
SEE RMK
Rotating beacon
S-white-green · SS-SR

Runway lighting aids — 30: 4-light PAPI (left).

FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.

Traffic pattern

12TPANSEW
LEFT traffic
Landing
Rwy 12 · 121°
Pattern
left (turns left)
TPA
1,500 ft MSL (≈1,000 AGL)

Enter the left downwind for Rwy 12 at 1,500 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).

Runway 12/30

10,002 ft × 200 ft · PEM

Edge lights: High.

12
Heading
121° mag · 133° true
Markings
nonprecision
Traffic pattern
Left
Displaced threshold
992 ft
30
Heading
301° mag · 313° true
Markings
nonprecision
VGSI
4-light PAPI (left) (3°)
Traffic pattern
Right
ft · ≥1.5× comfortable, under 1.25× tight · saved across airports

Communication frequencies

ServiceFrequencyNotes
MISC127.55PLEAD CON
TWR126.85

Nearby navigation aids

NavAidTypeFreqRadial / Dist magnetic
NSI · San Nicolas IslandTACAN110.20r345° / 0.3 NM

Airport diagram

Open PDF ↗
Preview diagram Open the airport diagram PDF

Procedures at a glance

Lowest mins: RNAV (GPS) · vertical guidance Takeoff mins / ODP ↗

Approaches2

Minimums & Hot Spots

Chart Supplement FAA A/FD

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Preview Chart Supplement Open the Chart Supplement PDF

VFR sectional

Open KNSI on the VFR sectional (SkyVector) ↗

Ownership & management

Owner
US NAVY
OCEANOGRAPHIC OFC - CODE 3142, WASHINGTON, DC
Manager

Remarks FAA

  • RSTD: OFFL BUS. PPR FOR ALL TSNT ACFT. 72 HR PN RQRD AND NOT EARLIER THAN 7 DAYS; NO SAME DAY PPR. MIN 24 HR PN RQRD; MIN 48 HR PN FOR LRG/HVY ACFT. PPR ISSUED MON-FRI 0600-1400L ONLY EXC HOL AND APVD BY AIRFIELD MGR. ACFT THAT FAIL TO ARR WI +/- 30 MIN OF ETA RISK BEING CNLD UNLESS PRIOR CDN/UPDATE IS MADE. SEND ALL PPR REQ VIA EMAIL TO NVBC_AFM@US.NAVY.MIL. NEW CIVIL AIRCRAFT LANDING PERMIT (CALP) RQRS 30 DAYS PRIOR NOTICE FOR CDN/LEGAL REVIEW. WT BRG WAIVERS RQR NBVC (PT MUGU) AFLD MGR APVL MIN 24 HRS PRIOR NOTICE. ALL MIL READINESS EXER/TRG EVENTS RQR CDN WITH NBVC AFLD MGR PRIOR TO PPR BEING ISSUED. NO FLEET SVC AVBL. ACFT PRKG SPACE EXTREMELY LTD. NO HNGR SPACE. 180-DEG TURNS ON POROUS FRICTION SFC PROHIBITED. MV-22 OPS PROHIBITED.
  • JASU: 1(GTC-85) 1(NC-10C) 1(NCPP-105)
  • TFC PAT: RGT TFC RWY 30.
  • CAUTION: POSS TURB SHORT FINAL RWY 30.
  • FUEL: J5 (MIL)
  • RSTD: RWY 12 TKOF AND LDG 9002 FT.
  • OPR 1500-2400Z++ MON-THU/ALTN FRI. CLSD ALTN FRI; ALL SAT, SUN AND HOL.
  • RSTD: POSSIBLE DIVERT ALL ACFT EXC EMERG TO PT MUGU NAWS DUE DRONE MISL OPR.
  • NS ABTMT: REMAIN AT LEAST 1 MILE OFFSHORE OR 1000 FT MSL.
  • MISC: CALL PLEAD CON 127.55/280.7 OR POINT MUGU APCH 128.65/325.0 PRIOR TO ENTERING W289.
  • CTN UNLIT WIND TURBINES APRX 160 FT TALL LCTD BTN 3930 FT & 6105 FT SOUTH OF THE RWY CNTRLN.
  • MISC: FIRST 500 FT RWY 12/30 CONC; REMAINDER POROUS FRICTION SFC.
  • CAUTION: RWY 30 PAPI U/S UFN.
  • CSTMS/AG/IMG - NOT A PORT OF ENTRY; SVCS NOT AVBL.
  • AVBL ONLY DURING HRS OF OPERATION.

Nearby airports

KNUC · San Clemente Island Naval Auxiliary Landing FieldPrivate (46 NM)44CA · Santa Cruz Ranch AirstripPrivate (46 NM)CA97 · Christy AirstripPrivate (51 NM)KAVX · Catalina Airport (53 NM)KSZN · Santa Cruz Island Airport (54 NM)KNTD · Point Mugu Naval Air Station (Naval Base Ventura Co)Private (55 NM)

Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open KNSI in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.

About KNSI

San Nicolas Island Nolf Airport (NSI · KNSI) is an airport in San Nicolas Island, CA, at 506 ft MSL. It has 1 runway, the longest 10,002 ft, with a control tower. This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for KNSI, refreshed from the Aviation Weather Center and FAA NASR.

Does KNSI have a control tower?

Yes. San Nicolas Island Nolf Airport has an operating FAA control tower. Check the Comms & NavAids tab for tower and ground frequencies.

What is the longest runway at KNSI?

San Nicolas Island Nolf Airport has 1 runway; the longest is 10,002 ft. See the Runways tab for headings, surface, and lighting.

Where is KNSI?

San Nicolas Island Nolf Airport is in San Nicolas Island, CA, at an elevation of 506 ft MSL. Coordinates: 33.2398, -119.4580.

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