North Island Naval Air Station-Halsey Field

KNZY / NZY

San Diego, US

Last Updated
Mar 5, 00:52Z

Military Airport

Restricted

This is a U.S. military installation. Civil aircraft operations are generally prohibited without prior authorization.

Access Notes:

Most military airfields closed to civil traffic; some joint-use exceptions exist

Consult official AIP (FAA AIP GEN 3.3) for current access procedures and restrictions.

Current Weather

Display Units
Recent 43 min ago
00:52Z

🌙 Night
VFR
Flight Rules
17°C
Temperature
Dewpoint: 12°C
3 kt
Variable
10 SM
Visibility
Ceiling
Unlimited
1014 hPa
QNH
Altimeter Setting

Raw METAR

METAR KNZY 050052Z VRB03KT 10SM SCT019 SCT250 17/12 A2994 RMK AO2 SLP137 T01670117

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 26 ft
SCT 1,900 ft AGL
SCT 25,000 ft AGL
SCT
Scattered (3/8-4/8 sky coverage)
1,900 ft
AGL (Above Ground)
1,926 ft AMSL
SCT
Scattered (3/8-4/8 sky coverage)
25,000 ft
AGL (Above Ground)
25,026 ft AMSL
QNH
1014 hPa
Sea Level Pressure
For altitude above MSL
QFE
1013 hPa
Field Pressure
Height above aerodrome (26 ft)
Pressure Alt
4 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 250 ft
ISA Deviation: +2.1°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF COR KNZY 0423/0523 27008KT 9999 FEW010 BKN015 BKN250 QNH2988INS BECMG 0501/0503 VRB05KT 9999 FEW007 BKN016 BKN025 QNH2989INS TEMPO 0504/0508 SCT018 FM051600 VRB06KT 9999 SCT025 SCT250 QNH2988INS FM052000 33010KT 9999 SCT025 QNH2984INS TX19/0520Z TN13/0513Z COR 0035 FS30222
Upcoming Changes (Next 12 Hours)
01:35Z BASE
+0h
MVFR 270° 8 kt
Visibility: 10+ km
Ceiling: 1,500 ft
04:00Z TEMPO
+3h
VFR

24-Hour Weather Evolution

Loading weather data...
Data Sources
  • • Current conditions from METAR observations
  • • Historical data from past 24 hours
  • • No forecast or predicted data included
  • • Data updated with each new METAR report
Chart Features
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Note: Future values beyond current TAF validity are estimates based on climatological data and trends. Always verify with current forecasts before flight operations.

Airport Runway Layout

N
NZY
11
29
18
36

Runway Information

Runway Length Width Surface Heading Wind Component
11/29 7,500 ft 300 ft PEM 122° No wind data
18/36 8,000 ft 200 ft PEM 195° No wind data
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KNZY

6,890 observations | Sep 2025 - Mar 2026

Flight Rules Distribution

VFR
70.7%
MVFR
18.3%
IFR
7%
LIFR
4%

North Island Naval Air Station-Halsey Field typically experiences VFR conditions 70.7% of the time, though instrument-rated pilots will find IFR weather present approximately 11% of observations. Prevailing winds are from the NW averaging 6.6 knots. Calm conditions occur 23.2% of the time. Temperatures typically range between 7°C and 34°C with an average of 16.5°C. The best months for VFR flying are March, February, October.

Wind Analysis

Prevailing Direction: NW (315°)
Average Speed: 6.6 kt
Maximum Recorded: 30 kt
Calm Winds: 23.2%
Direction Distribution:
N
13.8%
NE
3.6%
E
6.9%
SE
5.7%
S
11.7%
SW
4.5%
W
10.3%
NW
20.4%

Temperature Range

Average: 16.5°C
Range: 7°C to 34°C
7°C 34°C

Visibility

Average: 8.8 SM
Below 3 SM: 2.2%
Fog Frequency: 3.6%

Best Months for VFR

March February October

Runway Wind Analysis

Runway 11/29
Favorable wind: 100%
Avg crosswind: 3.8 kt
Runway 18/36
Favorable wind: 100%
Avg crosswind: 3.9 kt

Statistics computed from 6,890 METAR observations (Sep 2025 - Mar 2026). Data sourced from official aviation weather services. Updated daily.

North Island Naval Air Station-Halsey Field - Airport Information

Airport Details

ICAO Code: KNZY
IATA Code: NZY
Type: medium airport
Status: active
Elevation: 26 ft MSL

Location

City: San Diego
Country: US
Latitude: 32.699200°
Longitude: -117.214996°
Time Zone: Etc/GMT+8

Runway Information

Runway 11/29
Length: 7,500 ft
Width: 300 ft
Surface: PEM
ILS: No
Runway 18/36
Length: 8,000 ft
Width: 200 ft
Surface: PEM
ILS: No

About North Island Naval Air Station-Halsey Field

North Island Naval Air Station-Halsey Field is a military facility. Civilian access may be restricted or require Prior Permission (PPR). Pilots should consult the US AIP for current access procedures and restrictions.

Overview

North Island Naval Air Station-Halsey Field is a medium-sized airport located in San Diego, California, serving naval aviation operations. Situated at 26 feet above mean sea level, the base is strategically positioned on the western edge of the continental United States. The airport features two substantial runways capable of supporting various military and potential civilian aircraft operations.

Flying Conditions

Weather conditions at KNZY are predominantly favorable for flying, with Visual Flight Rules (VFR) conditions present 65.9% of the time. Pilots can expect northwest winds averaging 6.4 knots, with occasional stronger gusts up to 30 knots. Temperature ranges from 7°C to 34°C, with best VFR conditions typically occurring in October, November, and January.

Notable Features

Both runways (11/29 and 18/36) offer excellent wind alignment, with 100% favorable wind coverage and minimal average crosswind conditions (3.7-3.8 knots). The airport's proximity to the Pacific Ocean influences its microclimate, with occasional fog events affecting 4% of observations and visibility dropping below 3 statute miles in 2.6% of recorded conditions.

Approach Considerations

Runway selection should consider the prevailing northwest winds, which dominate the local wind pattern. Both 7,500-foot (11/29) and 8,000-foot (18/36) runways provide substantial landing options with consistent wind characteristics. Pilots should be prepared for potential marine layer influences and verify current weather conditions before approach, given the airport's coastal location.

Data Sources & Accuracy: Airport information sourced from OurAirports.com, a collaborative database of worldwide airport data. Weather data from official aviation weather services including NOAA Aviation Weather Center and international METAR/TAF providers. Information is updated regularly but pilots should always verify current conditions and NOTAMs through official channels before flight operations.

Official Data Sources

Weather NOAA Aviation Weather Center • International METAR/TAF Network
Airports OurAirports.com • Public domain airport database
NOTAMs FAA NOTAM System • ICAO NOTAM Distribution
Last updated: Jan 1, 1970 12:00 AM UTC

Disclaimer: Data is provided for informational purposes only. Pilots must verify all information through official sources before flight operations. Weather conditions change rapidly; always obtain a current briefing from approved weather services.