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San Clemente Island Naval Auxiliary Landing Field (KNUC) Aviation Weather: METAR & ATIS

A current METAR is not available for KNUC right now.

Live aviation weather for San Clemente Island Naval Auxiliary Landing Field in San Clemente Island, CA, including METAR, ATIS, flight category, wind, visibility, ceiling, altimeter and runway crosswinds.

San Clemente Island Naval Auxiliary Landing Field (KNUC) is a general aviation airport serving pilots in and around San Clemente Island, CA at a field elevation of 184 ft. KNUC reports its own METAR, decoded live on this page as flight category, wind, visibility, ceiling and altimeter. It has one runway (06/24), the longest 9,301 ft. The official FAA airport diagram is at the bottom of the page.

Ask ATIS AIAsk anything about KNUC's weather, runways or delays, or search another airport.
No data
Awaiting observationlive · refreshes every 60s
Wind
-
Visibility
-
Ceiling
Unlimited
Altimeter
-
Temp / Dew
-

What changed at KNUC?

Since the 0709Z (12:09 AM PDT) report, compared automatically against the latest METAR.

  • Flight category improved from MVFR to VFR.
  • The 2,200 ft ceiling dissipated, no ceiling now.

The latest report is an off-schedule special (SPECI), issued because conditions changed significantly. What is a SPECI? →

Current pilot readout for KNUC

A current METAR is not available for KNUC right now. Check back shortly, review a nearby reporting station, and always confirm with an official briefing before flight.

New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →

Runway wind check

Estimated head/tailwind and crosswind for each runway end from the current reported wind.

Current wind is calm: calm wind is not a factor for runway selection, and with no wind there is no head/tail or crosswind component to compute. Live numbers return automatically once a report includes a wind direction.

RunwayHead / TailCrosswind
06--
24--

Open the crosswind calculator to try your own wind and runway numbers →

KNUC runways

1 physical runway · 2 runway ends. Each card opens the runway's intelligence page: equipment and lighting, LAHSO, frequencies, today's configuration, predicted use, history and approaches.

  • Runway 06/24
    9,301 × 200 ft · CON
    Status not monitored
    Current use
    no stated-runway source at KNUC
    Wind
    06
    no steady wind
    24
    no steady wind
    no active equipment NOTAM receivedView Runway Intelligence →

“Current use” is what the facilitystates; wind components are arithmetic on the current METAR against TRUE headings; status reflects NOTAMs received through SWIM, the tower's TFDM record and the D-ATIS — a runway reads “Open” only with a complete NOTAM picture.

24-hour trend

Wind, ceiling and flight category over the last 24 hours.

Wind (kt)Gusts (kt)Bottom strip, flight category:VFRMVFRIFRLIFRNo report
0102010Z20Z08Z

Over the last 23 h: wind 0→5 kt, ceiling 1,400 ft → unlimited.

KNUC weather radar

Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.

Loading…
Loading radar…

Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap

NOAA NEXRAD composite and lightning, updated about every five minutes; amber frames are HRRR model guidance, not observed radar. Not for navigation.

Recent aviation weather trends at KNUC

From ATIS Alerts' hourly weather history.

Over the past 24 hours, KNUC reported mostly VFR across 28 observations, with 11 flight-category changes. The strongest gust reached 17 kt, the lowest ceiling was 1,400 ft. Wind most often came from the SW.

Last 24 hours
VFR 61%MVFR 39%
Wind avg/max: 7/9 kt
Max gust: 17 kt
Lowest ceiling: 1,400 ft
Lowest vis: -
Prevailing wind: SW
Category changes: 11

Most recent change: MVFR → VFR

Last 7 days
VFR 76%MVFR 23%IFR 1%
Wind avg/max: 9/19 kt
Max gust: 30 kt
Lowest ceiling: 1,200 ft
Lowest vis: 2 sm
Prevailing wind: W
Category changes: 18

Most recent change: VFR → MVFR

Wind-favored runway - past 30 days

Share of hours each runway had the most headwind. From wind reports, not ATC assignments.

24
90%
06
10%

TAF | Terminal Aerodrome Forecast

Issued 2300Z (4:00 PM PDT)

TAF KNUC 272300Z 2723/2823 28009KT 9999 BKN020 QNH2993INS FM280500 VRB06KT 9999 BKN015 QNH2991INS FM282000 VRB06KT 9999 SCT015 QNH2988INS LAST NO AMDS AFT 2801 NEXT 2815 TX22/2822Z TN16/2814Z FS30226

New to TAFs? How to read one →

Get KNUC weather alerts in Telegram

Stop refreshing aviation weather manually. Track KNUC in ATIS Alerts and get notified when a new METAR changes the picture: a category drop, or wind and ceiling moving toward your minimums.

Track KNUC free on Telegram

Live KNUC Weather

Live crosswind meter

Measured by KNUC's own weather station.

N0624wind calm / variable

Wind is calm or variable. Either end works.

Concrete · 9,301 ft. Headings from FAA runway data. Not for navigation.

Field aerial

North up

Aerial photo of San Clemente Island Naval Auxiliary Landing Field (KNUC) with runway 06/24 marked
N ↑

Runway 06/24 drawn from FAA threshold coordinates.

Imagery: USGS The National Map (public domain). Something off? ✏️ Suggest an edit

Airport info

From the FAA airport record (cycle 2026-10-01) and OurAirports.

Services

Attended
Mon 1500-0200Z+ local; Tue-Thu 1600-0200Z+ local; Fri 1600-0000Z+ local; Clsd Sat, Sun And Hol. all day
Control tower
Yes

Airport

Type
General aviation airport
ICAO
KNUC
FAA LID
NUC
City
San Clemente Island
State
California
Country
United States
Elevation
184 ft
Coordinates
33.0227, -118.5880
Runways
1 physical runway · 2 runway ends
Longest runway
9,301 ft
Weather reporting
Reports METAR
TAF
Published
ATIS
26.86 MHz
Time zone
America/Los_Angeles
Next sunset
16h 10m

Run a flight school, FBO, or club here? Embed KNUC's live status on your website, free →

Nearby airports

Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.

VFRMVFRIFRLIFRNo report
See all California airports →

KNUC airport diagram

Official FAA taxiway and runway layout. Tap to zoom.

Official FAA airport diagram · d-TPP cycle 2611 · Not for navigation. Download the official FAA PDF ↗

Customize your NUC shirt or mug

NUC's real runway layout on the back, elevation and tower frequency on the front. Add your tail number on the sleeve.

Shop NUC merch

Pilot PIREPs for San Clemente Island Naval Auxiliary Landing Field (KNUC)

Community-submitted

Community-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.

Read recent community-submitted pilot notes for San Clemente Island Naval Auxiliary Landing Field, including runway conditions, wildlife activity, FBO/fuel notes, turbulence, ramp access, and local airport tips.

⚠️ Pilot PIREPs on ATIS Alerts are community-submitted airport notes for situational awareness only. They are not official FAA PIREPs, NOTAMs, weather briefings, airport advisories, or flight-planning guidance. Always verify with official FAA/NWS sources, airport management, ATC, and current publications.

No Pilot PIREPs have been submitted for KNUC yet. Recently flew here? Help the next pilot by leaving a quick airport note.

Pilot PIREPs are community pilot notes for situational awareness only, not official FAA PIREPs or advisories. Verify with official sources. Notes are moderated before they appear; helpful marks and reports help us keep them useful.

⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.

No D-ATIS at this airport, showing METAR. METAR source temporarily unavailable.

Spotted incorrect airport info? ✏️ Suggest an edit

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