Lyon Bron Airport

LFLY / LYN

Chassieu, Lyon, FR

Last Updated
May 14, 20:30Z

Current Weather

Display Units
Fresh 14 min ago
20:30Z

🌙 Night
VFR
Flight Rules
9°C
Temperature
Dewpoint: 8°C
2 kt
Variable
--
Visibility
Ceiling
Unlimited
1002 hPa
QNH
Altimeter Setting

Raw METAR

METAR LFLY 142030Z AUTO VRB02KT CAVOK 09/08 Q1002 NOSIG

Weather Briefing

VFR

Lyon Bron Airport is currently reporting visual flight rules (VFR) conditions with clear skies.

Wind Analysis

Winds are calm, presenting no crosswind concerns for any runway.

Visibility & Ceiling

Skies are clear with unlimited ceiling.

Temperature & Moisture

Temperature is 9°C (48°F) with a dewpoint of 8°C. The temperature-dewpoint spread is very narrow, indicating saturated or near-saturated air. Fog formation or low cloud development is likely.

Forecast Outlook

The TAF forecast covers the next 22 hours. The forecast shows a transition between VFR and IFR conditions. Pilots should monitor the forecast closely and have an alternate airport plan. Expected weather includes: Showers Rain, Light Rain, RADZ, Thunderstorm RAGS. There is a 40% probability of IFR conditions with Showers Rain between 20:00Z and 00:00Z. Temporary IFR conditions are forecast with RADZ between 03:00Z and 09:00Z. There is a 30% probability of IFR conditions between 04:00Z and 07:00Z.

Pilot Recommendations

Conditions are favorable for visual flight. The narrow temperature-dewpoint spread creates risk of fog formation, particularly during evening and early morning hours. The forecast indicates conditions may deteriorate. Ensure you have fuel reserves and a viable alternate airport.

This briefing is generated from real-time METAR and TAF data. Always verify with official sources before flight.

QNH
1002 hPa
Sea Level Pressure
For altitude above MSL
QFE
980 hPa
Field Pressure
Height above aerodrome (659 ft)
Pressure Alt
997 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 435 ft
ISA Deviation: -4.7°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF AMD LFLY 142030Z 1420/1518 19007KT 9999 BKN050 PROB40 TEMPO 1420/1424 30012KT 4000 SHRA FEW030CB SCT040TCU BECMG 1500/1503 35008KT -RA OVC035 TEMPO 1503/1509 4500 RADZ BKN010 PROB30 TEMPO 1504/1507 BKN005 PROB40 TEMPO 1511/1518 35015G25KT 4000 SHRA FEW035CB SCT040TCU PROB30 TEMPO 1512/1516 2000 TSRAGS
Upcoming Changes (Next 12 Hours)
20:43Z BASE
+0h
VFR 190° 7 kt
Visibility: 10+ km
Ceiling: 5,000 ft
00:00Z BECMG
+4h
VFR 350° 8 kt
Ceiling: 3,500 ft
Light Rain
03:00Z TEMPO
+7h
IFR
Visibility: 4.5 km
Ceiling: 1,000 ft
RADZ
04:00Z PROB30 TEMPO
+8h
IFR
Ceiling: 500 ft

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
FLY
16
34

Runway Information

Runway Length Width Surface Heading Wind Component
16/34 5,971 ft 148 ft ASP 163° 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 - LFLY

11,253 observations | Sep 2025 - May 2026

Flight Rules Distribution

VFR
65.5%
MVFR
17.8%
IFR
10%
LIFR
6.7%

Lyon Bron Airport typically experiences VFR conditions 65.5% of the time, though instrument-rated pilots will find IFR weather present approximately 16.7% of observations. Prevailing winds are from the S averaging 6.9 knots. Temperature extremes range from -7°C to 31°C, reflecting significant seasonal variation. Fog is a notable factor, occurring in approximately 12.4% of observations, with visibility below 3 SM in 0% of reports. The best months for VFR flying are April, March, May.

Wind Analysis

Prevailing Direction: S (180°)
Average Speed: 6.9 kt
Maximum Recorded: 29 kt
Calm Winds: 6.8%
Direction Distribution:
N
20.2%
NE
3.8%
E
7.6%
SE
12.8%
S
28.3%
SW
3.4%
W
4%
NW
13.1%

Temperature Range

Average: 9.9°C
Range: -7°C to 31°C
-7°C 31°C

Visibility

Average: 10 SM
Below 3 SM: 0%
Fog Frequency: 12.4%

Best Months for VFR

April March May

Runway Wind Analysis

Runway 16/34
Favorable wind: 100%
Avg crosswind: 2.4 kt

Statistics computed from 11,253 METAR observations (Sep 2025 - May 2026). Data sourced from official aviation weather services. Updated daily.

Lyon Bron Airport - Airport Information

Airport Details

ICAO Code: LFLY
IATA Code: LYN
Type: medium airport
Status: active
Elevation: 659 ft MSL

Location

City: Chassieu, Lyon
Country: FR
Latitude: 45.727947°
Longitude: 4.943991°
Time Zone: Europe/Brussels

Runway Information

Runway 16/34
Length: 5,971 ft
Width: 148 ft
Surface: ASP
ILS: No

About Lyon Bron Airport

Overview

Lyon Bron Airport serves the Lyon metropolitan area in southeastern France, located in Chassieu near the city of Lyon. As a medium-sized airport with an elevation of 659 feet MSL, it provides critical aviation infrastructure for the region. The airport supports various aviation activities with its single runway 16/34, which measures 5,971 feet in length.

Flying Conditions

Weather conditions at Lyon Bron are predominantly VFR, with 55% of observations showing favorable visual flight rules. Seasonal temperature variations are significant, ranging from -7°C to 31°C with an average of 9.2°C. September, October, and November offer the most consistently favorable VFR conditions, while winter and early spring present more challenging meteorological environments.

Notable Features

The airport experiences predominantly southerly winds at an average speed of 6.9 knots, with occasional gusts up to 29 knots. Wind conditions are calm 6.6% of the time, which provides relatively stable approach and departure scenarios. The runway alignment allows for 100% favorable wind coverage, with an average crosswind component of just 2.4 knots.

Approach Considerations

Visibility at Lyon Bron is typically excellent, averaging 10 statute miles with fog occurring in only 13.6% of observations. Pilots should be prepared for potential reduced visibility during winter months, though complete low instrument flight rules (LIFR) conditions are rare, occurring in less than 10% of meteorological reports. Runway 16/34 offers consistent wind alignment, facilitating predictable landing and takeoff operations.

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.