Juan Santamaría International Airport

MROC / SJO

San José (Alajuela), CR

Last Updated
Mar 4, 09:00Z

Current Weather

Display Units
Fresh 27 min ago
09:00Z

☀️ Day
VFR
Flight Rules
21°C
Temperature
Dewpoint: 15°C
15 kt
110° G25 kt
10+ km
Visibility
Ceiling
Unlimited
1014 hPa
QNH
Altimeter Setting

Raw METAR

METAR MROC 040900Z 11015G25KT 9999 FEW040 21/15 A2993 NOSIG

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 3,021 ft
FEW 4,000 ft AGL
🌤️
FEW
Few (1/8-2/8 sky coverage)
4,000 ft
AGL (Above Ground)
7,021 ft AMSL
QNH
1014 hPa
Sea Level Pressure
For altitude above MSL
QFE
913 hPa
Field Pressure
Height above aerodrome (3,021 ft)
Pressure Alt
2,999 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 4,444 ft
ISA Deviation: +12.0°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF MROC 040612Z 0406/0506 10016KT 9999 FEW040 TX30/0419Z TN20/0410Z TEMPO 0406/0412 11020G30KT TEMPO 0414/0420 09018G28KT
Upcoming Changes (Next 12 Hours)
09:26Z BASE
+0h
VFR 100° 16 kt
Visibility: 10+ km
14:00Z TEMPO
+5h
VFR 90° 18 kt

24-Hour Weather Evolution

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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
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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
ROC
07 ✈️
25

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 07/25
Active: 07
9,882 ft 151 ft ASP 69°
11.5 kt 9.6 kt
40° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - MROC

4,426 observations | Sep 2025 - Mar 2026

Flight Rules Distribution

VFR
86.9%
MVFR
7.6%
IFR
3.3%
LIFR
2.2%

Juan Santamaría International Airport enjoys predominantly VFR conditions, with visual flight rules prevailing 86.9% of the time. Prevailing winds are from the E averaging 9.5 knots. The climate is relatively stable with temperatures averaging 22.6°C (range: 16°C to 31°C). The best months for VFR flying are March, January, February.

Wind Analysis

Prevailing Direction: E (90°)
Average Speed: 9.5 kt
Maximum Recorded: 29 kt
Calm Winds: 0.8%
Direction Distribution:
N
2.4%
NE
11.2%
E
55%
SE
5.7%
S
1.3%
SW
11.2%
W
10.1%
NW
2.3%

Temperature Range

Average: 22.6°C
Range: 16°C to 31°C
16°C 31°C

Visibility

Average: 10 SM
Below 3 SM: 0%
Fog Frequency: 7.4%

Best Months for VFR

March January February

Runway Wind Analysis

Runway 07/25
Favorable wind: 100%
Avg crosswind: 3.9 kt

Statistics computed from 4,426 METAR observations (Sep 2025 - Mar 2026). Data sourced from official aviation weather services. Updated daily.

Juan Santamaría International Airport - Airport Information

Airport Details

ICAO Code: MROC
IATA Code: SJO
Type: large airport
Status: active
Elevation: 3,021 ft MSL

Location

City: San José (Alajuela)
Country: CR
Latitude: 9.993860°
Longitude: -84.208801°
Time Zone: Etc/GMT+6

Runway Information

Runway 07/25
Length: 9,882 ft
Width: 151 ft
Surface: ASP
ILS: No

About Juan Santamaría International Airport

Overview

Juan Santamaría International Airport serves as Costa Rica's primary international aviation hub, located near San José in the Alajuela province. As a large airport situated at 3021 feet mean sea level, it provides critical aviation infrastructure for both commercial and regional air transportation in Central America.

Flying Conditions

The airport's elevation of 3021 feet means pilots should anticipate higher density altitude conditions, particularly during warmer periods which can affect aircraft performance. Its geographic location in Central America suggests potential for variable weather patterns, with potential rapid atmospheric changes typical of mountainous tropical environments.

Notable Features

The single runway 07/25 measures 9882 feet in length, constructed with asphalt surface, providing substantial operational flexibility for a wide range of aircraft types. Its orientation suggests potential crosswind considerations, with runway heading aligned approximately east-west and positioned at coordinates 9.993860, -84.208801.

Approach Considerations

Pilots should be prepared for potential terrain-influenced wind variations given the airport's mountainous regional context. The substantial 9882-foot runway length provides significant margin for most commercial and regional aircraft operations, allowing flexible approach and landing strategies across various meteorological conditions.

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.