Sendai Airport

RJSS / SDJ

Natori, JP

Last Updated
Aug 12, 01:00Z

Current Weather

Display Units
Recent 44 min ago
01:00Z

🌙 Night
MVFR
Flight Rules
24°C
Temperature
Dewpoint: 22°C
13 kt
100°
10+ km
Visibility
2,000 ft
Ceiling
Above Ground Level
--
QNH
Altimeter Setting

Raw METAR

METAR RJSS 120100Z 10013KT 9999 FEW008 BKN020 24/22 Q1007

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 15 ft
FEW 800 ft AGL
BKN 2,000 ft AGL
🌤️
FEW
Few (1/8-2/8 sky coverage)
800 ft
AGL (Above Ground)
815 ft AMSL
☁️
BKN
Broken (5/8-7/8 sky coverage)
2,000 ft
AGL (Above Ground)
2,015 ft AMSL

Weather Briefing

MVFR

Sendai Airport is currently reporting marginal VFR (MVFR) conditions with broken clouds at 2,000 feet and 10 miles or greater visibility.

Wind Analysis

Winds are from the east (100°) at 13 knots. Runway 09/27 is favored with a 13-knot headwind and 2-knot crosswind component.

Visibility & Ceiling

Visibility is unrestricted. The ceiling is 2000 feet AGL (broken), placing conditions in the MVFR category.

Temperature & Moisture

Temperature is 24°C (75°F) with a dewpoint of 22°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 30 hours. IFR conditions are expected to persist or develop. An instrument rating and IFR flight plan are recommended. Expected weather includes: Light Showers Rain, Light Showers Rain, Mist, Thunderstorm Rain, Mist. Temporary LIFR conditions are forecast with Light Showers Rain, Mist between 00:00Z and 03:00Z. Temporary LIFR conditions are forecast with Thunderstorm Rain, Mist between 03:00Z and 12:00Z. Temporary LIFR conditions are forecast with Light Showers Rain, Mist between 12:00Z and 18:00Z.

Pilot Recommendations

VFR pilots should exercise caution. Consider filing IFR if instrument rated, or postponing the flight if conditions are expected to deteriorate further. 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 RJSS 112311Z 1200/1306 11010KT 6000 -SHRA FEW003 BKN012 TEMPO 1200/1203 3000 -SHRA BR FEW001 BKN003 TEMPO 1203/1212 2000 TSRA BR FEW001 BKN003 FEW015CB TEMPO 1212/1218 2000 -SHRA BR FEW001 BKN003 TEMPO 1218/1300 2000 TSRA BR FEW001 BKN003 FEW015CB TEMPO 1300/1306 3000 -SHRA BR FEW001 BKN003
Upcoming Changes (Next 12 Hours)
01:44Z BASE
+0h
IFR 110° 10 kt
Visibility: 6 km
Ceiling: 1,200 ft
Light Showers Rain
03:00Z TEMPO
+2h
LIFR
Visibility: 2 km
Ceiling: 300 ft
Thunderstorm Rain, Mist
12:00Z TEMPO
+11h
LIFR
Visibility: 2 km
Ceiling: 300 ft
Light Showers Rain, Mist

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
JSS
09 ✈️
27
12 ✈️
30

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 09/27
Active: 09
9,842 ft 150 ft ASP 82°
12.8 kt 2.3 kt
10° angle
✈️ 12/30
Active: 12
3,940 ft 150 ft ASP 117°
12.2 kt 4.4 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 - RJSS

6,572 observations | Sep 2025 - Aug 2026

Flight Rules Distribution

VFR
78.1%
MVFR
10.5%
IFR
7.2%
LIFR
4.2%

Sendai Airport typically experiences VFR conditions 78.1% of the time, though instrument-rated pilots will find IFR weather present approximately 11.4% of observations. Prevailing winds are from the SE averaging 7.7 knots, with gusts recorded up to 34 knots. Temperature extremes range from -8°C to 34°C, reflecting significant seasonal variation. The best months for VFR flying are November, January, December.

Wind Analysis

Prevailing Direction: SE (135°)
Average Speed: 7.7 kt
Maximum Recorded: 34 kt
Calm Winds: 0.9%
Direction Distribution:
E
11.4%
N
14.7%
S
9.1%
W
15.3%
NE
5.4%
NW
16.6%
SE
18.9%
SW
7.8%

Temperature Range

Average: 13.8°C
Range: -8°C to 34°C
-8°C 34°C

Visibility

Average: 10 SM
Below 3 SM: 0%
Fog Frequency: 1.2%

Best Months for VFR

November January December

Runway Wind Analysis

Runway 09/27
Favorable wind: 100%
Avg crosswind: 4.6 kt
Runway 12/30
Favorable wind: 100%
Avg crosswind: 3.6 kt

Statistics computed from 6,572 METAR observations (Sep 2025 - Aug 2026). Data sourced from official aviation weather services. Updated daily.

Sendai Airport - Airport Information

Airport Details

ICAO Code: RJSS
IATA Code: SDJ
Type: large airport
Status: active
Elevation: 15 ft MSL

Location

City: Natori
Country: JP
Latitude: 38.139702°
Longitude: 140.917007°
Time Zone: Europe/Moscow

Runway Information

Runway 09/27
Length: 9,842 ft
Width: 150 ft
Surface: ASP
ILS: No
Runway 12/30
Length: 3,940 ft
Width: 150 ft
Surface: ASP
ILS: No

About Sendai Airport

Overview

Sendai Airport is a significant international airport located in Natori, Miyagi Prefecture, Japan. Serving the Sendai metropolitan area, this large airport operates at an elevation of 15 feet above mean sea level. Its strategic location and two asphalted runways make it an important transportation hub for the Tohoku region.

Flying Conditions

The airport's low elevation of 15 ft MSL suggests minimal terrain-related weather challenges. Situated at coordinates 38.139702, 140.917007, Sendai experiences typical maritime climate conditions characteristic of northern Japan. Pilots should anticipate potential seasonal variations in wind and visibility that are common to coastal airport environments.

Notable Features

Sendai Airport features two runways: a primary 9,842-foot runway (09/27) and a secondary 3,940-foot runway (12/30), both constructed with asphalt surfaces. The dual-runway configuration provides operational flexibility for different wind conditions and aircraft types. Its coastal location near 38°N latitude indicates potential for complex local meteorological interactions.

Approach Considerations

The runway orientation (09/27 and 12/30) offers multiple approach options depending on prevailing wind conditions. The substantial length of the primary runway (9,842 ft) accommodates a wide range of aircraft types and provides ample landing and takeoff capabilities. Pilots should carefully assess wind direction and runway conditions when planning arrivals and departures.

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.