Seinäjoki Airport

EFSI / SJY

Seinäjoki / Ilmajoki, FI

Last Updated
Jul 5, 02:20Z

Current Weather

Display Units
Fresh 12 min ago
02:20Z

🌙 Night
VFR
Flight Rules
10°C
Temperature
Dewpoint: 10°C
2 kt
Variable
--
Visibility
Ceiling
Unlimited
--
QNH
Altimeter Setting

Raw METAR

METAR EFSI 050220Z AUTO VRB02KT CAVOK 10/10 Q1005

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 10°C (50°F) with a dewpoint of 10°C. The temperature-dewpoint spread is very narrow, indicating saturated or near-saturated air. Fog formation or low cloud development is likely.

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: Fog, Mist. Temporary LIFR conditions are forecast with Mist between 00:00Z and 03:00Z. Temporary MVFR conditions are forecast between 06:00Z and 09:00Z.

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. 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 042332Z 0500/0509 VRB01KT 0400 FG VV001 TEMPO 0500/0503 2000 BR BKN002 BECMG 0503/0505 9999 NSW SCT002 TEMPO 0506/0509 FEW025CB
Upcoming Changes (Next 12 Hours)
02:31Z BASE
+0h
LIFR VRB 1 kt
Visibility: 0.4 km
Ceiling: 100 ft
Fog
03:00Z BECMG
+1h
VFR
Visibility: 10+ km
06:00Z TEMPO
+4h
MVFR

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
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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
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

13,354 observations | Sep 2025 - Jul 2026

Flight Rules Distribution

VFR
57.8%
MVFR
14.4%
IFR
14.5%
LIFR
13.3%

Seinäjoki Airport is frequently affected by reduced visibility conditions, with VFR weather only 57.8% of the time and IFR/LIFR conditions occurring in 27.8% of observations. Prevailing winds are from the S averaging 6.7 knots. Temperature extremes range from -27°C to 26°C, reflecting significant seasonal variation. The best months for VFR flying are July, April, May.

Wind Analysis

Prevailing Direction: S (180°)
Average Speed: 6.7 kt
Maximum Recorded: 26 kt
Calm Winds: 0.4%
Direction Distribution:
E
7%
N
7.9%
S
24.2%
W
12.6%
NE
2.5%
NW
11.2%
SE
23%
SW
11.2%

Temperature Range

Average: 2.6°C
Range: -27°C to 26°C
-27°C 26°C

Visibility

Average: 10 SM
Below 3 SM: 0%
Fog Frequency: 5.9%

Best Months for VFR

July April May

Runway Wind Analysis

Runway 14/32
Favorable wind: 100%
Avg crosswind: 3.4 kt

Statistics computed from 13,354 METAR observations (Sep 2025 - Jul 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.