Byron
C83 · Byron, CA · Non-towered · Print kneeboard · Open on the map
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Weather
METAR observed
TAF forecast
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Sun & FAA night2026-09-18 · night begins 07:36 PM
| Event | Local (PDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:24 AM | 13:24Z |
| Sunrise | 06:51 AM | 13:51Z |
| Sunset | 07:10 PM | 02:10Z |
| Evening civil twilight Loggable night begins | 07:36 PM | 02:36Z |
Plan a flight from C83
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Full reports: nearest reporting station
Advisories
NOTAMs · Loading NOTAMs…
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Airspace hazards · Checking SIGMETs and G-AIRMETs…
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Runways
RWY 12LEFT traffic
- Heading
- 120° mag · 135° true
- Dimensions
- 4,500 × 100 ft
- TPA
- 1,100 ft MSL (≈1,000 AGL) · standard
- Surface
- Asphalt
- CTAF
- 123.05
Enter the left downwind (heading 300°) on the 45° at 1,100 ft MSL (≈1,000 AGL).
More details — RWY 12
- Threshold elev
- 64 ft
- Markings
- nonprecision
- Approach obstacle
- Pole, 61 ft, 1,591 ft from threshold, 261 ft R of centerline — 22:1 slope to clear
- TDZ elevation
- 64 ft
Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: FAA runway-end coordinates
| Runway | Length | Your margin |
|---|---|---|
| 12/30 | 4,500 ft | |
| 05/23 | 3,000 ft |
Prefer one flat page? Full runway details for C83 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the C83 kneeboard →
Comms & NavAids
Communication frequencies
Before taxi
Taxi & takeoff
Departure & arrival
“Norcal”ATC assigns the exact frequency (in your clearance or on handoff) — which one depends on your SID (departing) or STAR (arriving).
By procedure & sector (1 frequencies)
| Frequency | Used by |
|---|---|
| 278.3 | APCH/P DEP/P |
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
CCR 117.00 · OAK 116.80 · SUU 116.60 · +4
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| CCR · Concord | VOR/DME | 117.00 · 117X | Terminal | r106° / 23.7 NM |
| OAK · Oakland | VOR/DME | 116.80 · 115X | High | r061° / 29 NM |
| SUU · Travis | TACAN | 116.60 · 113X | — | r136° / 29.2 NM |
| SJC · San Jose | VOR/DME | 114.10 · 88X | Low | r013° / 31.2 NM |
| NUQ · Moffett | TACAN | 117.60 · 123X | — | r024° / 31.4 NM |
| LIN · Linden | VOR/DME | 114.80 · 95X | High | r227° / 32.9 NM |
| MOD · Modesto | VOR/DME | 114.60 · 93X | High | r274° / 33.9 NM |
Prefer one flat list? All C83 frequencies →
Charts & procedures
Airport info
Airport information
- FAA LID
- C83
- Coordinates
- 37.8284, -121.6258
- Elevation
- 78 ft MSL
- Magnetic variation
- 15E
- Sectional chart
- SAN FRANCISCO
- Airport use
- Public
- Control tower
- No
- Weather station
- AWOS-3 · 123.775 · ☎ 925-634-0906
- ARTCC
- OAKLAND (ZOA)
- Flight service (FSS)
- OAKLAND · 1-800-WX-BRIEF
- NOTAM facility
- OAK
- Attendance
- ALL 0700-1400
- Beacon
- white-green (SS-SR)
- Segmented circle
- Yes
- Activated
- 1994/11
- Distance from city
- 2 S
Activity & hazards NASR
- Parachute jumping — to 15,000 ft MSL · DAILY SR-SS
Night operations
- Airport lighting
- SEE RMK
- Rotating beacon
- white-green · SS-SR
- Pilot-controlled lighting
- PCL AVBL SS-SR. ACTVT REIL RWY 30; MIRL RWY 12/30 & 05/23 - CTAF. on 123.05 — Chart Supplement ↗
Runway lighting aids — 30: 2-light PAPI (left) · 23: 2-light PAPI (left).
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are under Sun & FAA night in the Weather section.
Services fuel · repairs · oxygen · attendance
- Fuel available
- 100LL
- Parking
- tiedowns
- Other services
- Glider, Parachute ops, Towing
Ownership & management 2 contacts
Remarks FAA · 14 notes
General
- ULTRALIGHT & SAILPLANE ACTIVITY ON & INVOF ARPT.
- RISING TERRAIN WITH NUMEROUS WINDMILLS ON RIDGES WEST OF ARPT.
- HANGAR APRON & TIEDOWN APRON 12500 LBS MAX.
- RY 30 CALM WIND RY.
- 200' TOWER 5600 FEET FROM RUNWAY 05.
- 100' TOWER 5100 FEET FROM RUNWAY 23.
- POWER PLANT 2.7 MILES SE OF AIRPORT PRODUCING THERMAL PLUMES; AVOID OVERLFIGHT BELOW 1,500 FT AGL.
- FOR CD CTC NORCAL APCH AT 916-361-0516.
- FREQ UAS DRONE ACT 7.8 NM DIAM ARND FLD UP TO 8000 FT.
- PRCHT ACT AT NW END OF ARPT.
Lighting
- PCL AVBL SS-SR. ACTVT REIL RWY 30; MIRL RWY 12/30 & 05/23 - CTAF.
Fuel
- FUEL AVBL 24 HRS BY CREDIT CARD.
Obstructions
- WIND TURBINES
Contact
- DIRECTOR OF ARPTS CONTRA COSTA COUNTY.
Nearby airports
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Also nearby: CN19 Las Serpientes (private) (6 NM) · 4CA2 Funny Farm (private) (7 NM) · 63CN Meadowlark Field (private) (11 NM) · CN95 Heritage Field (private) (12 NM)
About C83
Byron (C83) is an airport in Byron, CA, at 78 ft MSL. It has 2 runways, the longest 4,500 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for C83, refreshed from the Aviation Weather Center and FAA NASR.
Does C83 have a control tower?
No. Byron is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at C83?
Byron has 2 runways; the longest is 4,500 ft. See the Runways section for headings, surface, and lighting.
Where is C83?
Byron is in Byron, CA, at an elevation of 78 ft MSL. Coordinates: 37.8284, -121.6258.
More about C83
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 C83 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.
Something here wrong or out of date? Report a data problem.