Seinäjoki Airport

EFSI / SJY

Seinäjoki / Ilmajoki, FI

Last Updated
Jun 10, 04:20Z

Current Weather

Display Units
Fresh 15 min ago
04:20Z

☀️ Day
VFR
Flight Rules
17°C
Temperature
Dewpoint: 13°C
1 kt
Variable
--
Visibility
Ceiling
Unlimited
--
QNH
Altimeter Setting

Raw METAR

METAR EFSI 100420Z AUTO VRB01KT CAVOK 17/13 Q1003

Weather Briefing

VFR

Seinäjoki Airport is currently reporting visual flight rules (VFR) conditions with clear skies.

Wind Analysis

Winds are calm, presenting no crosswind concerns for any runway.

Visibility & Ceiling

Skies are clear with unlimited ceiling.

Temperature & Moisture

Temperature is 17°C (63°F) with a dewpoint of 13°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 9 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: Showers Rain. Expect variable wind speeds ranging from 1 to 15 knots. Temporary LIFR conditions are forecast between 03:00Z and 06:00Z. Temporary IFR conditions are forecast with Showers Rain between 06:00Z and 12:00Z. There is a 40% probability of VFR conditions between 10:00Z and 12:00Z.

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.

Forecast (TAF)

View Full TAF
Raw TAF
TAF EFSI 100227Z 1003/1012 VRB01KT CAVOK TEMPO 1003/1006 BKN009 FEW030CB TEMPO 1006/1012 SHRA BKN014 FEW030CB BECMG 1008/1010 23010KT PROB40 TEMPO 1010/1012 23015G25KT
Upcoming Changes (Next 12 Hours)
04:35Z BASE
+0h
VFR VRB 1 kt
Visibility: >10km
06:00Z TEMPO
+2h
IFR
Ceiling: 1,400 ft
Showers Rain
08:00Z BECMG
+4h
VFR 230° 10 kt
10:00Z PROB40 TEMPO
+6h
VFR 230° 15 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
  • • Hover for exact values and timestamps
  • • Click legend items to toggle data series
  • • Zoom and pan for detailed analysis
  • • Units automatically converted to preferences
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
FSI
14
32

Runway Information

Runway Length Width Surface Heading Wind Component
14/32 6,562 ft 148 ft ASP 136° 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 - EFSI

12,232 observations | Sep 2025 - Jun 2026

Flight Rules Distribution

VFR
55.7%
MVFR
14.8%
IFR
15.4%
LIFR
14.2%

Seinäjoki Airport is frequently affected by reduced visibility conditions, with VFR weather only 55.7% of the time and IFR/LIFR conditions occurring in 29.6% of observations. Prevailing winds are from the S averaging 6.7 knots. Temperature extremes range from -27°C to 25°C, reflecting significant seasonal variation. The best months for VFR flying are April, May, June.

Wind Analysis

Prevailing Direction: S (180°)
Average Speed: 6.7 kt
Maximum Recorded: 26 kt
Calm Winds: 0.4%
Direction Distribution:
E
7.5%
N
7.4%
S
25.1%
W
11.5%
NE
2.6%
NW
10.3%
SE
23.9%
SW
11.4%

Temperature Range

Average: 1.5°C
Range: -27°C to 25°C
-27°C 25°C

Visibility

Average: 10 SM
Below 3 SM: 0%
Fog Frequency: 6.2%

Best Months for VFR

April May June

Runway Wind Analysis

Runway 14/32
Favorable wind: 100%
Avg crosswind: 3.3 kt

Statistics computed from 12,232 METAR observations (Sep 2025 - Jun 2026). Data sourced from official aviation weather services. Updated daily.

Seinäjoki Airport - Airport Information

Airport Details

ICAO Code: EFSI
IATA Code: SJY
Type: medium airport
Status: active
Elevation: 302 ft MSL

Location

City: Seinäjoki / Ilmajoki
Country: FI
Latitude: 62.692101°
Longitude: 22.832300°
Time Zone: Europe/Athens

Runway Information

Runway 14/32
Length: 6,562 ft
Width: 148 ft
Surface: ASP
ILS: No

About Seinäjoki Airport

Overview

Seinäjoki Airport serves the central Ostrobothnia region of Finland, strategically positioned near the cities of Seinäjoki and Ilmajoki. As a medium-sized airport located at 302 feet above mean sea level, it provides essential aviation infrastructure for regional transportation and local aviation activities.

Flying Conditions

Weather conditions at Seinäjoki Airport demonstrate significant variability, with visual flight rules (VFR) conditions occurring 42% of the time. Pilots should anticipate challenging conditions, as instrument flight rules (IFR) and marginal VFR conditions comprise nearly 58% of observations. Temperature ranges from -26°C to 23°C, with an average of 1.3°C, indicating potential for significant seasonal weather variations.

Notable Features

The airport features a single runway (14/32) measuring 6,562 feet with an asphalt surface. Prevailing winds from the southeast (135°) average 6.7 knots, with maximum recorded speeds of 26 knots. Calm wind conditions are rare, occurring only 0.2% of the time, which suggests consistent wind activity in the region.

Approach Considerations

Runway 14/32 demonstrates favorable wind alignment, with 100% wind compatibility and an average crosswind of just 3.2 knots. Visibility averages 10 statute miles, with minimal instances of restricted visibility (below 3 miles). September, January, and October represent the most consistently favorable VFR months for operations at this airport.

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.