Amsterdam Temperature Market Guide

EHAM • Amsterdam Airport Schiphol

Polymarket

Amsterdam, the capital of the Netherlands, offers a maritime temperate climate heavily influenced by the North Sea. Located below sea level, the city experiences mild summers and cool winters with frequent cloud cover.

Quick Facts

Station Code	`EHAM`
Location	Amsterdam, Netherlands
Coordinates	52.3086°N, 4.7639°E
Elevation	-11 ft (-3 m)
Timezone	CET (Europe/Amsterdam)
NWS Office	KNMI

About EHAM Weather Station

Amsterdam Airport Schiphol (EHAM) serves as the primary weather observation station for the Amsterdam area. Notably located at -11 feet (-3 meters) below sea level, it's one of the world's lowest major airports.

The Netherlands' position on the North Sea coast creates a strongly maritime climate. KNMI (Royal Netherlands Meteorological Institute) maintains official observations.

Climate Patterns

Amsterdam has an oceanic climate (Koppen: Cfb) with cool summers and mild winters. The North Sea moderates temperature extremes year-round.

Summer highs typically reach 21-23�C (70-73�F), occasionally exceeding 30�C during heat waves. Winters are mild with highs around 5-7�C (41-45�F).

The city is known for frequent cloud cover and consistent precipitation throughout the year.

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Seasonal Trading Considerations

Winter (December - February): Mild and damp with highs 5-7�C (41-45�F). Frost possible but extended cold rare. North Sea prevents extremes.

Spring (March - May): Gradual warming with variable conditions. Late frosts possible into April.

Summer (June - August): Mild with highs 20-23�C (68-73�F). Heat waves occasionally bring 30�C+.

Autumn (September - November): Cooling gradually with increasing rain and wind.

Trading Tips for Amsterdam

The North Sea keeps Amsterdam temperatures remarkably stable - extreme heat and cold are both rare compared to continental Europe.

Summer heat waves occur when continental air masses override the maritime influence.

Winter cold spells happen when easterly winds bring Siberian air, bypassing the North Sea's moderating effect.

KNMI and ECMWF (headquartered nearby in Reading) provide excellent forecasts.

Data Release Schedule

Typical release times for key data products at EHAM. 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

Maritime vs Continental: Wind direction determines whether maritime or continental air dominates.

Heat Wave Intensity: Predicting how hot summers will get requires tracking high pressure over central Europe.

North Sea Influence: The sea's moderating effect varies with wind patterns.