Seoul Gimpo (RKSS) Temperature Market Guide

RKSI • Incheon International Airport
Polymarket

Seoul Gimpo Airport (RKSS) offers a Polymarket temperature market. Seoul experiences one of the most extreme continental monsoon climates of any major world city.

Quick Facts

Station Code RKSI
Location Seoul, SK
Coordinates 37.5585°N, 126.7906°E
Elevation 59 ft (18 m)
Timezone KST (Asia/Seoul)
NWS Office KMA

About the RKSS Weather Station

The RKSS weather station is located at Gimpo International Airport on the western edge of Seoul, along the Han River. At 59 feet elevation, Gimpo sits on the flat Han River plain.

Seoul Climate & Temperature Patterns

Seoul experiences a humid continental climate (Koppen: Dwa) with extreme seasonal variation.

Key Climate Factors:

Extreme Seasonality: One of the largest annual temperature ranges of any major city.

East Asian Monsoon: Summer monsoon brings heat and rain; winter monsoon brings cold from Siberia.

Yellow Dust: Spring often brings dust storms from China/Mongolia.

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Seasonal Trading Considerations

Winter (December - February):
Cold with average highs in the mid-30s°F. Siberian air masses can bring sub-zero temperatures.

Spring (March - May):
Rapid warming with yellow dust events.

Summer (June - August):
Hot and humid with the Jangma rainy season in late June-July.

Fall (September - November):
Pleasant - October is often the best month.

Seoul-Specific Trading Tips

Time Zone: Seoul is UTC+9, 14 hours ahead of U.S. Eastern Time.

Monsoon Season: The Jangma brings heavy rain and moderates temperatures.

Siberian Outbreaks: Winter cold waves can be intense.

Celsius Reporting: Korean data is in Celsius.

Data Release Schedule

Typical release times for key data products at RKSI. Times shown in UTC.

Data Type Typical Time (UTC) Variability
METAR
Hourly observations
Hourly at :53 ±1 min

6-Hour High/Low Reports

These METARs include 6-hour maximum and minimum temperatures, useful for tracking intraday temperature trends.

00:53 UTC
06:53 UTC
12:53 UTC
18:53 UTC

Note: Times are approximate and may vary. CLI reports are the official resolution source for temperature markets. See NWS Data Guide for more information.

Forecasting Challenges

Time Zone Complexity: Significant time zone differences from North America.

Monsoon Timing: Exact onset and intensity varies yearly.

Historical Temperature Records

Record High: 104°F (40.0°C) recorded in August 2018.

Record Low: -14°F (-25.6°C) recorded in January 1927.

Annual Range: Approximately 118°F (65°C) - among the largest of any major world city.

📡 Official Data Sources

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