Ilopango International Airport

MSSS / ILS

San Salvador, SV

Last Updated
Jul 4, 00:00Z

Current Weather

Display Units
Stale 11 hours ago
00:00Z

☀️ Day
VFR
Flight Rules
27°C
Temperature
Dewpoint: 24°C
4 kt
190°
--
Visibility
Ceiling
Unlimited
1016 hPa
QNH
Altimeter Setting

Raw METAR

METAR MSSS 040000Z 19004KT 160V220 27/24 Q1015 A2999 NOSIG

Weather Briefing

VFR

Ilopango International Airport is currently reporting visual flight rules (VFR) conditions with clear skies. Note: This observation is 10.7 hours old and conditions may have changed.

Wind Analysis

Winds are from the south (190°) at 4 knots.

Visibility & Ceiling

Skies are clear with unlimited ceiling.

Temperature & Moisture

Temperature is 27°C (81°F) with a dewpoint of 24°C. The narrow temperature-dewpoint spread suggests high humidity and potential for visibility restrictions, especially during cooling periods.

Forecast Outlook

The TAF forecast covers the next 24 hours. Conditions are expected to remain VFR throughout the forecast period. Temporary VFR conditions are forecast between 20:00Z and 00:00Z.

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.

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

QNH
1016 hPa
Sea Level Pressure
For altitude above MSL
QFE
948 hPa
Field Pressure
Height above aerodrome (2,027 ft)
Pressure Alt
1,945 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 3,871 ft
ISA Deviation: +16.1°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF MSSS 040325Z 0406/0506 34006KT CAVOK TX33/0420 TN23/0412Z TEMPO 0420/0424 32005KT 9999 FEW030 FM050000 34005KT CAVOK
Upcoming Changes (Next 12 Hours)
10:43Z BASE
+0h
VFR 340° 6 kt
Visibility: >10km
20:00Z TEMPO
+10h
VFR 320° 5 kt
Visibility: 10+ km

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
SSS
15 ✈️
33

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 15/33
Active: 15
7,349 ft 148 ft ASP 153°
3.1 kt 2.6 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 - MSSS

3,580 observations | Sep 2025 - Jul 2026

Flight Rules Distribution

VFR
92.1%
MVFR
6.1%
IFR
1.2%
LIFR
0.7%

Ilopango International Airport enjoys predominantly VFR conditions, with visual flight rules prevailing 92.1% of the time. Prevailing winds are from the N averaging 7 knots. Temperatures typically range between 14°C and 34°C with an average of 26.6°C. The best months for VFR flying are July, February, January.

Wind Analysis

Prevailing Direction: N (0°)
Average Speed: 7 kt
Maximum Recorded: 17 kt
Calm Winds: 0.8%
Direction Distribution:
E
3.1%
N
42.6%
S
24.7%
W
0.4%
NE
2.1%
NW
15.1%
SE
10.2%
SW
1%

Temperature Range

Average: 26.6°C
Range: 14°C to 34°C
14°C 34°C

Visibility

Average: 10 SM
Below 3 SM: 0%
Fog Frequency: 0.7%

Best Months for VFR

July February January

Runway Wind Analysis

Runway 15/33
Favorable wind: 100%
Avg crosswind: 2.2 kt

Statistics computed from 3,580 METAR observations (Sep 2025 - Jul 2026). Data sourced from official aviation weather services. Updated daily.

Ilopango International Airport - Airport Information

Airport Details

ICAO Code: MSSS
IATA Code: ILS
Type: medium airport
Status: active
Elevation: 2,027 ft MSL

Location

City: San Salvador
Country: SV
Latitude: 13.699500°
Longitude: -89.119904°
Time Zone: Etc/GMT+6

Runway Information

Runway 15/33
Length: 7,349 ft
Width: 148 ft
Surface: ASP
ILS: No

About Ilopango International Airport

Overview

Ilopango International Airport serves San Salvador, El Salvador, situated at an elevation of 2027 ft MSL. The medium-sized airport provides critical aviation infrastructure in a Central American urban setting, supporting regional transportation needs with its 7349-foot asphalted runway 15/33.

Flying Conditions

Weather conditions at Ilopango are predominantly VFR, with 91.1% of observations supporting visual flight rules. The airport experiences consistent temperatures averaging 25.8°C, with a range from 17°C to 34°C. Wind patterns are northerly (0°) with an average speed of 6.6 knots, rarely exceeding 16 knots.

Notable Features

The airport's geographical position near San Salvador introduces potential terrain considerations for pilots. Its elevation of 2027 ft MSL suggests potential density altitude effects, particularly during warmer months. The consistent wind profile indicates minimal turbulence risk during standard operations.

Approach Considerations

Runway 15/33 demonstrates favorable wind alignment, with 100% wind compatibility and minimal average crosswind of 1.9 knots. Pilots can expect optimal VFR conditions, particularly during January, November, and December. Visibility consistently averages 10 statute miles, with negligible instances of restricted visibility.

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.