Guanacaste Airport

MRLB / LIR

Liberia, CR

Last Updated
Mar 4, 04:00Z

Current Weather

Display Units
Fresh 11 min ago
04:00Z

🌙 Night
VFR
Flight Rules
28°C
Temperature
Dewpoint: 19°C
19 kt
90°
--
Visibility
Ceiling
Unlimited
--
QNH
Altimeter Setting

Raw METAR

METAR MRLB 040400Z 09019KT CAVOK 28/19 A2979

Forecast (TAF)

View Full TAF
Raw TAF
TAF MRLB 032333Z 0400/0424 08015KT CAVOK TX35/0420Z TN23/0411Z TEMPO 0400/0404 09020G31KT BECMG 0405/0408 VRB05KT BECMG 0414/0416 08018KT
Upcoming Changes (Next 12 Hours)
04:10Z BASE
+0h
VFR 80° 15 kt
Visibility: >10km
05:00Z BECMG
+1h
VFR VRB 5 kt
14:00Z BECMG
+10h
VFR 80° 18 kt

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
RLB
07 ✈️
25

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 07/25
Active: 07
9,022 ft 148 ft ASP 70°
17.9 kt 6.5 kt
20° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - MRLB

3,193 observations | Sep 2025 - Mar 2026

Flight Rules Distribution

VFR
95.3%
MVFR
2.9%
IFR
1%
LIFR
0.8%

Guanacaste Airport enjoys predominantly VFR conditions, with visual flight rules prevailing 95.3% of the time. Prevailing winds are from the E averaging 9.7 knots, with gusts recorded up to 32 knots. Temperatures typically range between 17°C and 38°C with an average of 27.9°C. The best months for VFR flying are February, March, January.

Wind Analysis

Prevailing Direction: E (90°)
Average Speed: 9.7 kt
Maximum Recorded: 32 kt
Calm Winds: 1.9%
Direction Distribution:
N
3%
NE
9.4%
E
52.9%
SE
7.8%
S
6.6%
SW
4.1%
W
10.4%
NW
4%

Temperature Range

Average: 27.9°C
Range: 17°C to 38°C
17°C 38°C

Visibility

Average: 10 SM
Below 3 SM: 0%
Fog Frequency: 5.6%

Best Months for VFR

February March January

Runway Wind Analysis

Runway 07/25
Favorable wind: 100%
Avg crosswind: 3.3 kt

Statistics computed from 3,193 METAR observations (Sep 2025 - Mar 2026). Data sourced from official aviation weather services. Updated daily.

Guanacaste Airport - Airport Information

Airport Details

ICAO Code: MRLB
IATA Code: LIR
Type: large airport
Status: active
Elevation: 270 ft MSL

Location

City: Liberia
Country: CR
Latitude: 10.593300°
Longitude: -85.544403°
Time Zone: Etc/GMT+6

Runway Information

Runway 07/25
Length: 9,022 ft
Width: 148 ft
Surface: ASP
ILS: No

About Guanacaste Airport

Overview

Guanacaste Airport serves as a primary international gateway located in Liberia, Costa Rica, situated at 270 feet above mean sea level. The airport plays a critical role in supporting regional air transportation for the Guanacaste province, offering a large airport infrastructure with significant runway capabilities. Its strategic location provides essential aviation services for both commercial and potentially charter/private operations in northwestern Costa Rica.

Flying Conditions

The airport's tropical coastal location suggests variable weather conditions typical of Central American maritime environments. Elevation at 270 ft MSL indicates relatively low-altitude operations with minimal terrain interference. Pilots should anticipate potential thermal activity and potential convective weather patterns common to the region's latitude and coastal proximity.

Notable Features

The single runway 07/25 extends 9,022 feet with an asphaltic surface, providing substantial operational flexibility for diverse aircraft types. Its geographical coordinates at 10.593300, -85.544403 place the airport in a coastal region with potential wind gradient considerations. The lengthy runway suggests capability for handling wide-body and long-haul aircraft configurations.

Approach Considerations

Runway orientation at 070/250 degrees suggests potential crosswind scenarios depending on prevailing maritime wind patterns. The extensive 9,022-foot runway length offers significant margin for approach and landing variations. Pilots should anticipate potential wind shear or thermal turbulence typical of coastal tropical airport environments during approach and departure phases.

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.