Cerro Largo International Airport

SUMO / MLZ

Melo, UY

Last Updated
Mar 4, 09:00Z

Current Weather

Display Units
Recent 42 min ago
09:00Z
☀️ Day
VFR
Flight Rules
22°C
Temperature
Dewpoint: 18°C
6 kt
50°
--
Visibility
∞
Ceiling
Unlimited
--
QNH
Altimeter Setting

Raw METAR

METAR SUMO 040900Z AUTO 05006KT //// ////// 22/18 Q1010

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
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
↑
UMO
07 ✈️
25

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 07/25
Active: 07
 4,573 ft 98 ft UNK 0°
↑ 5.6 kt • ↔ 2.1 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 - SUMO

3,873 observations | Sep 2025 - Mar 2026

Flight Rules Distribution

VFR
100%
MVFR
0%
IFR
0%
LIFR
0%

Cerro Largo International Airport enjoys predominantly VFR conditions, with visual flight rules prevailing 100% of the time. Prevailing winds are from the E averaging 7.9 knots. Temperature extremes range from 3°C to 37°C, reflecting significant seasonal variation. The best months for VFR flying are January, February, March.

Wind Analysis

Prevailing Direction: E (90°)
Average Speed: 7.9 kt
Maximum Recorded: 30 kt
Calm Winds: 0.4%
Direction Distribution:
N
10.2%
NE
8.9%
E
26.2%
SE
21.4%
S
14.8%
SW
5.5%
W
6.7%
NW
5.8%

Temperature Range

Average: 20.6°C
Range: 3°C to 37°C
3°C 37°C

Visibility

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

Best Months for VFR

January February March

Runway Wind Analysis

Runway 07/25
Favorable wind: 100%
Avg crosswind: 5 kt

Statistics computed from 3,873 METAR observations (Sep 2025 - Mar 2026). Data sourced from official aviation weather services. Updated daily.

Cerro Largo International Airport - Airport Information

Airport Details

ICAO Code: SUMO
IATA Code: MLZ
Type: small airport
Status: active
Elevation: 364 ft MSL

Location

City: Melo
Country: UY
Latitude: -32.337898°
Longitude: -54.216702°
Time Zone: Etc/GMT+4

Runway Information

Runway 07/25
Length: 4,573 ft
Width: 98 ft
Surface: UNK
ILS: No

Flight Planning Tools

Crosswind
50°@6kt
Density Alt
364ft, 22°C
Performance
Takeoff/Landing
Regions
Browse airports

Nearby Airports

SBBG VFR
Comandante Gustavo Kraemer Airport
57nm
106km
VFR MVFR IFR LIFR No Data

About Cerro Largo International Airport

Cerro Largo International Airport (SUMO/MLZ) is located in Melo, UY at an elevation of 364 feet MSL. The airport has 1 runway (07/25), with the longest at 4,573 feet.

Weather Profile

Based on 3,873 weather observations, SUMO experiences excellent VFR conditions 100% of the time, making it one of the more weather-reliable airports in its region.

Wind Patterns & Runway Selection

Prevailing winds at SUMO come from the E (90°) with an average speed of 7.9 knots and recorded gusts up to 30 knots. Calm winds are rare (0.4%), so crosswind considerations are a regular factor. Runway 07/25 offers the lowest average crosswind component at 5 knots, making it the preferred choice in typical wind conditions.

Seasonal Considerations

The best months for VFR operations are January, February, March, when clear skies are most prevalent. Temperatures at the field range from 3°C (37°F) to 37°C (99°F), averaging 20.6°C (69°F). High temperatures can significantly impact aircraft performance through increased density altitude. Altimeter settings typically range from 29 to 31 inHg (982-1050 hPa).

Data Sources: Airport data from OurAirports.com. Weather statistics derived from 3,873 official METAR observations (Sep 2025 - Mar 2026). Pilots should always verify current conditions through official channels before flight.

Learn More

Relevant guides based on current conditions at SUMO

How to Read METAR Reports
Decode aviation weather observations
Pre-Flight Weather Briefing
Complete briefing checklist
View all learning resources →

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.