WxDecoder

US-0188 Weather Coast Guard Air Station San Francisco

San Francisco, CaliforniaElevation 8 ftHeliport
OFF-FIELD REFERENCE
Nearest report: KSFO · 1 NM SE · More than 1 hour old
Ceiling 20,000 ft, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KSFO
WIND
290@9
steady
VISIBILITY
10 SM
16.1 km
CEILING
20,000 ft
lowest BKN/OVC
ACTIVE NWS ALERTS

Active weather alerts

Coastal Flood AdvisoryMinor · Expected · Likely
25 1606Z to 29 2200Z
San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
* WHAT...Up to 1.9ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. * WHERE...Bay Shoreline locations of San Francisco Bay, Monterey Bay and Big Sur Coast. * WHEN...Until 3 PM PDT Thursday. * IMPACTS...High tides will result in flooding of low-lying infrastructure, isolated road closures, and coastal erosion. Rising tides will bring water an…
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.

Alerts from the National Weather Service. For situational awareness only; always confirm against an official briefing.

FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

No aviation METAR is published for this airport. The nearest National Weather Service station reports visibility 10 SM, temperature 18C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight partly cloudy, low near 56F, 1% chance of precipitation. Key risks: no significant hazards are highlighted right now, but always confirm against an official briefing.

DayConditionsTemp FWindGustsPrecipPilot note
Tonight Partly Cloudy 56 W 4 kt – 1%
Monday Sunny 64/55 WNW 13 kt 21 kt 0%
Tuesday Mostly Sunny 62/55 WNW 14 kt 23 kt 0%
Wednesday Mostly Sunny 63/56 NNW 9 kt – 0%
Thursday Partly Sunny 61/55 WNW 15 kt – 12%
Friday Mostly Sunny then Slight Chance Light Rain 60/53 WNW 13 kt – 39%
Saturday Chance Light Rain 59/52 NW 7 kt – 39%
Sunday Slight Chance Light Rain 59 NNW 9 kt – 22%

Source: National Weather Service (office MTR). Forecast issued 0259Z.

Radar

Radar data: NOAA/NWS MRMS composite reflectivity. For situational awareness only, not a substitute for an official weather briefing.

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RUNWAYS & WIND
Crosswind calculator
No runway layout is available for US-0188. Enter a runway number or heading to estimate wind components.
FIELD CONDITIONS

Field elevation

Field elevation
8 ft MSL

Density and pressure altitude need a current temperature and altimeter from the METAR.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
0119Z 6:19 PM
Sunrise
1428Z 7:28 AM
Loggable night
0146Z (6:46 PM local) → 1401Z (7:01 AM local)
end of evening to start of morning civil twilight
Position lights required
0119Z (6:19 PM local) → 1428Z (7:28 AM local)
sunset to sunrise (91.209)
Night passenger currency
0219Z (7:19 PM local) → 1328Z (6:28 AM local)
1 hr after sunset to 1 hr before sunrise (61.57(b))

FAA definitions, shown in Zulu with airport-local time. Verify for your operation.

AIRPORT INFORMATION

Facility & services

Coast Guard Air Station San Francisco is in San Francisco, California. Field elevation 8 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
TypeHeliport
CHARTS & AIRSPACE
ICAO / IATAUS-0188
RegionCalifornia
CountryUnited States
Coordinates37.6321, -122.3897
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

US-0188 traffic patterns

2026-06-12 to 2026-10-23, 70 days observed · data 2026-10-23

High confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
50.2
AVG OPS/DAY
52.4
Activity trend over 18 days: rising, from 56 to 64 operations per dayOperations trend (18 days)

Busiest day: Thu · Busiest month: Sep

FLEET MIX
Unknown 86%Airliner 10%Helicopter 4%

Fleet composition unclear from available data.

TOP AIRCRAFT TYPES
›UNKN (Unknown) · ~763 landings/mo
›SERV (Unknown) · ~208 landings/mo
›B763 (Airliner) · ~50 landings/mo
›AS65 (Helicopter) · ~41 landings/mo
›B77L (Airliner) · ~18 landings/mo
LIKELY BASED AIRCRAFT
Low-confidence estimate

Aircraft likely based near this airport (estimate), mostly rotorcraft.

›AS65 (Helicopter)
›EC35 (Helicopter)

This is an estimate based on repeated flight patterns, not registration data. Do not rely on it to identify specific aircraft or owners.

Data limitations (4)
›ADS-B coverage is incomplete; counts are an observed lower bound, not official totals.
›Some aircraft do not transmit usable ADS-B and are not counted.
›Aircraft types and based estimates are inferred and may be wrong.
›This is not official ATC, FAA, or airport data.
NEARBY AIRPORTS

Weather reference stations

US-0188 has no on-field report. Nearest reporting station: KSFO (1 NM SE, VFR).

KSFO San Francisco International Airport
1 NM SE
VFR
KHAF Half Moon Bay Airport
9 NM SW
VFR
KOAK Oakland San Francisco Bay Airport
10 NM NE
VFR
KSQL San Carlos Airport
10 NM SE
VFR
KHWD Hayward Executive Airport
13 NM E
VFR
KPAO Palo Alto Airport
17 NM SE
VFR
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗Wikipedia
↗US-0188 on OurAirports
FREQUENTLY ASKED
Does US-0188 have a METAR?
No on-field METAR is issued for US-0188. This page uses the nearest reporting station as a reference.
Does US-0188 have a TAF?
No TAF is issued directly for US-0188. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at US-0188?
US-0188 sits at 8 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for US-0188?
No. wxdecoder.com is for education and situational awareness only. It is not an official weather briefing or a substitute for official sources, NOTAM review, and pilot judgment.
This app is for aviation weather education, training, and situational awareness only. It is not a substitute for an official weather briefing, approved flight-planning software, flight service, dispatch procedures, current FAA regulations, or pilot judgment. Always verify weather with official sources before flight.