Saint Helena Hospital Clearlake Heliport (CL53), California
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
St Helena Hospital Clearlake is a private-use hospital heliport near Clearlake, California, built around a single helideck rather than a runway. Traffic is light, consisting entirely of business aviation operations, and the facility is unattended with no onsite customs service.
Fuel and airfield services
The airport has no control tower.
Source: FAA Form 5010 / NASR.
Customs
Saint Helena Hospital Clearlake Heliport does not clear customs. The nearest port of entry is Sacramento International (KSMF), 50 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Saint Helena Hospital Clearlake Heliport recorded 106 business aviation movements in 2025. Traffic peaks in November. Business aviation traffic at St Helena Hospital Clearlake heliport is concentrated in a handful of months, with November and April showing the highest operation counts of the year.
Business jet movements, FAA TFMSC count. Peak month November, 20 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Saint Helena Hospital Clearlake Heliport averages 21.7 days above 90°F in July, 17.7 freeze days in January and 0.1 snow days in January. July is the warmest month, with average highs of 91.4°F, and January the coldest, at 54.8°F.
Weather station is 2.5 NM from the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Saint Helena Hospital Clearlake Heliport has published operating constraints in one category: other notes.
For clearance delivery, contact Oakland ARTCC.
Perimeter lights are pilot-activated on frequency 123.025.
Standard helicopter markings are in place.
Source: FAA Chart Supplement.
Nearby airfields
Saint Helena Hospital Clearlake Heliport has five airfields within 41 NM. The closest is Angwin-Parrett Field, 22.96 NM south.
Source: Skystar calculation from official coordinates.
Skystar at CL53
We arrange catering, fuel and trip support here. Supplier prices reach you unchanged; our coordination fee sits on its own line.
The same order, priced two ways.
$600.00 catering order at CL53.
Unchanged.
What the kitchen invoices us is what your quote reads.
One line, fixed.
The $75 minimum applies below $862.50.
At cost.
Passed on at the exact amount the processor took.
Market practice figures are industry averages, not a specific competitor.
Frequently asked questions
What kind of facility is CL53?
CL53 is the local identifier for St Helena Hospital Clearlake, a private-use heliport in Clearlake, California, with no ICAO or IATA code assigned. It has a single helideck landing area and no onsite customs service, making it unsuitable for international arrivals without prior arrangement elsewhere.
Is fuel available at St Helena Hospital Clearlake heliport?
Fuel type data is not published for St Helena Hospital Clearlake heliport (CL53). Operators should plan fuel stops at a nearby airport, since this unattended private heliport should not be assumed to carry jet or avgas supply.
Where would a flight to CL53 clear customs?
St Helena Hospital Clearlake heliport has no customs service onsite. The nearest customs facility is KSMF, located about 50 nautical miles away, so international operators must route their customs clearance through that airport instead.