Amsterdam Climate Patterns

Amsterdam has a temperate maritime climate, moderated by the North Sea and defined by wind.

Temperature

Mild in both directions. Summer highs average 21 to 23°C in July and August, with genuinely hot days occasional and short; winter highs sit around 6°C with nights just above freezing. Hard frosts are increasingly rare, which is why the canals seldom freeze thick enough to skate on — an event the city treats as a national occasion when it happens.

Rain and wind

Around 850 millimetres a year spread across roughly 200 days, so it rains often rather than heavily. The wind is the more significant factor: this is flat, open country facing the North Sea, and an umbrella is close to useless. A hooded waterproof is the local solution, and cycling into a headwind is a normal part of the day.

Light

The big seasonal variable at 52 degrees north. Light until after ten in late June; dark by half past four in December, often under continuous cloud.

Summer

The moment the sun appears, every terrace in the city fills within minutes. This is not an exaggeration.

Rising seas

A country with two-fifths of its land below sea level watches the projections closely, and Dutch water engineering is planned in centuries rather than decades. The Delta Works and the storm surge barriers are periodically reassessed against faster sea-level rise, and Amsterdam has begun designing new districts on floating and raised foundations.

Storms

Autumn and winter gales close the Maeslant barrier downstream and occasionally halt trains and ferries.