Rennes-Saint-Jacques Airport

LFRN / RNS

Saint-Jacques-de-la-Lande, Ille-et-Vilaine, FR

Last Updated
Jul 4, 10:00Z

Current Weather

Display Units
Fresh 19 min ago
10:00Z

☀️ Day
VFR
Flight Rules
24°C
Temperature
Dewpoint: 13°C
4 kt
Variable
--
Visibility
Ceiling
Unlimited
1030 hPa
QNH
Altimeter Setting

Raw METAR

METAR LFRN 041000Z AUTO VRB04KT CAVOK 24/13 Q1030 NOSIG

Weather Briefing

VFR

Rennes-Saint-Jacques Airport is currently reporting visual flight rules (VFR) conditions with clear skies.

Wind Analysis

Winds are from the variable directions at 4 knots.

Visibility & Ceiling

Skies are clear with unlimited ceiling.

Temperature & Moisture

Temperature is 24°C (75°F) with a dewpoint of 13°C, indicating relatively dry conditions.

Forecast Outlook

The TAF forecast covers the next 24 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: Mist. Temporary IFR conditions are forecast between 22:00Z and 06:00Z. There is a 40% probability of LIFR conditions with Mist between 00:00Z and 05:00Z.

Pilot Recommendations

Conditions are favorable for visual flight. 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
1030 hPa
Sea Level Pressure
For altitude above MSL
QFE
1026 hPa
Field Pressure
Height above aerodrome (124 ft)
Pressure Alt
-379 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 731 ft
ISA Deviation: +9.2°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF LFRN 040500Z 0406/0506 35004KT 3000 BR OVC004 BECMG 0406/0408 9999 NSW SCT020 BECMG 0415/0417 36010KT BECMG 0422/0424 VRB05KT TEMPO 0422/0506 BKN008 PROB40 TEMPO 0500/0505 4000 BR BKN004
Upcoming Changes (Next 12 Hours)
10:18Z BASE
+0h
LIFR 350° 4 kt
Visibility: 3 km
Ceiling: 400 ft
Mist
15:00Z BECMG
+5h
VFR 360° 10 kt
22:00Z BECMG
+12h
VFR VRB 5 kt
22:00Z TEMPO
+12h
IFR
Ceiling: 800 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
FRN
10
28
14
32

Runway Information

Runway Length Width Surface Heading Wind Component
10/28 6,890 ft 148 ft ASP 101° No wind data
14/32 2,788 ft 98 ft ASP 142° 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 - LFRN

13,749 observations | Sep 2025 - Jul 2026

Flight Rules Distribution

VFR
43%
MVFR
20.4%
IFR
24.2%
LIFR
12.3%

Rennes-Saint-Jacques Airport is frequently affected by reduced visibility conditions, with VFR weather only 43% of the time and IFR/LIFR conditions occurring in 36.5% of observations. Prevailing winds are from the S averaging 7.6 knots. Temperature extremes range from -6°C to 41°C, reflecting significant seasonal variation. Fog is a notable factor, occurring in approximately 13% of observations, with visibility below 3 SM in 0% of reports. The best months for VFR flying are June, April, September.

Wind Analysis

Prevailing Direction: S (180°)
Average Speed: 7.6 kt
Maximum Recorded: 26 kt
Calm Winds: 1.7%
Direction Distribution:
E
10.6%
N
11.9%
S
20%
W
12.9%
NE
4.9%
NW
7.6%
SE
11.3%
SW
19.1%

Temperature Range

Average: 12.3°C
Range: -6°C to 41°C
-6°C 41°C

Visibility

Average: 10 SM
Below 3 SM: 0%
Fog Frequency: 13%

Best Months for VFR

June April September

Runway Wind Analysis

Runway 10/28
Favorable wind: 100%
Avg crosswind: 5.2 kt
Runway 14/32
Favorable wind: 100%
Avg crosswind: 4.9 kt

Statistics computed from 13,749 METAR observations (Sep 2025 - Jul 2026). Data sourced from official aviation weather services. Updated daily.

Rennes-Saint-Jacques Airport - Airport Information

Airport Details

ICAO Code: LFRN
IATA Code: RNS
Type: medium airport
Status: active
Elevation: 124 ft MSL

Location

City: Saint-Jacques-de-la-Lande, Ille-et-Vilaine
Country: FR
Latitude: 48.069500°
Longitude: -1.734790°
Time Zone: Europe/Brussels

Runway Information

Runway 10/28
Length: 6,890 ft
Width: 148 ft
Surface: ASP
ILS: No
Runway 14/32
Length: 2,788 ft
Width: 98 ft
Surface: ASP
ILS: No

About Rennes-Saint-Jacques Airport

Overview

Rennes-Saint-Jacques Airport serves the Brittany region in northwestern France, located near the city of Rennes in Ille-et-Vilaine. As a medium-sized airport with an elevation of 124 feet MSL, it provides critical aviation infrastructure for regional and commercial operations. The airport features two asphalted runways capable of supporting diverse aircraft types.

Flying Conditions

Weather conditions at Rennes-Saint-Jacques demonstrate significant variability, with visual flight rules (VFR) conditions present 36.7% of the time and instrument conditions (IFR/LIFR) occurring 41.4% of observations. Temperature ranges from -6°C to 29°C, with an average of 10.3°C, indicating potential seasonal temperature challenges. Prevailing winds from the south (180°) average 7.8 knots, with occasional gusts up to 26 knots.

Notable Features

The airport's two runways offer flexibility for different wind conditions, with both 10/28 and 14/32 experiencing 100% favorable wind alignments. Crosswind components remain relatively moderate, averaging 5-5.6 knots across runways. The airport's location in Brittany suggests potential maritime weather influences and complex local terrain interactions.

Approach Considerations

Pilots should anticipate mixed meteorological conditions, with fog occurring in 13.4% of observations and average visibility around 10 statute miles. September through November represent the most consistently favorable VFR months. The longer runway 10/28 at 6,890 feet provides substantial landing and takeoff options for most aircraft types.

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.