Sendai Airport

RJSS / SDJ

Natori, JP

Last Updated
Jul 4, 06:00Z

Current Weather

Display Units
Recent 57 min ago
06:00Z

☀️ Day
MVFR
Flight Rules
21°C
Temperature
Dewpoint: 18°C
9 kt
130°
10+ km
Visibility
1,500 ft
Ceiling
Above Ground Level
--
QNH
Altimeter Setting

Raw METAR

METAR RJSS 040600Z 13009KT 9999 FEW010 BKN015 BKN025 21/18 Q1012

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 15 ft
FEW 1,000 ft AGL
BKN 1,500 ft AGL
BKN 2,500 ft AGL
🌤️
FEW
Few (1/8-2/8 sky coverage)
1,000 ft
AGL (Above Ground)
1,015 ft AMSL
☁️
BKN
Broken (5/8-7/8 sky coverage)
1,500 ft
AGL (Above Ground)
1,515 ft AMSL
☁️
BKN
Broken (5/8-7/8 sky coverage)
2,500 ft
AGL (Above Ground)
2,515 ft AMSL

Weather Briefing

MVFR

Sendai Airport is currently reporting marginal VFR (MVFR) conditions with broken clouds at 1,500 feet and 10 miles or greater visibility.

Wind Analysis

Winds are from the southeast (130°) at 9 knots. Runway 12/30 is favored with a 9-knot headwind and 2-knot crosswind component.

Visibility & Ceiling

Visibility is unrestricted. The ceiling is 1500 feet AGL (broken), placing conditions in the MVFR category.

Temperature & Moisture

Temperature is 21°C (70°F) with a dewpoint of 18°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 30 hours. IFR conditions are expected to persist or develop. An instrument rating and IFR flight plan are recommended. Temporary IFR conditions are forecast between 09:00Z and 18:00Z. Temporary IFR conditions are forecast between 18:00Z and 00:00Z.

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 040505Z 0406/0512 14010KT 9999 FEW008 BKN015 TEMPO 0409/0418 FEW003 BKN008 TEMPO 0418/0500 FEW001 BKN005
Upcoming Changes (Next 12 Hours)
06:56Z BASE
+0h
MVFR 140° 10 kt
Visibility: 10+ km
Ceiling: 1,500 ft
09:00Z TEMPO
+3h
IFR
Ceiling: 800 ft
18:00Z TEMPO
+12h
IFR
Ceiling: 500 ft

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
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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°
6.9 kt 5.8 kt
40° angle
✈️ 12/30
Active: 12
3,940 ft 150 ft ASP 117°
8.9 kt 1.6 kt
10° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - RJSS

5,631 observations | Sep 2025 - Jul 2026

Flight Rules Distribution

VFR
82%
MVFR
8.5%
IFR
6%
LIFR
3.5%

Sendai Airport enjoys predominantly VFR conditions, with visual flight rules prevailing 82% of the time. Prevailing winds are from the NW averaging 7.9 knots, with gusts recorded up to 34 knots. Temperature extremes range from -8°C to 32°C, reflecting significant seasonal variation. The best months for VFR flying are November, January, December.

Wind Analysis

Prevailing Direction: NW (315°)
Average Speed: 7.9 kt
Maximum Recorded: 34 kt
Calm Winds: 0.8%
Direction Distribution:
E
10.4%
N
14.9%
S
8.6%
W
16.9%
NE
5.3%
NW
18.5%
SE
16%
SW
8.5%

Temperature Range

Average: 12.1°C
Range: -8°C to 32°C
-8°C 32°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: 4.7 kt
Runway 12/30
Favorable wind: 100%
Avg crosswind: 3.7 kt

Statistics computed from 5,631 METAR observations (Sep 2025 - Jul 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.