Antwerp Weather & Climate: A Year-Round Expert Guide

Antwerp’s climate is defined as sub-oceanic, a temperate regime heavily moderated by the North Sea and the Atlantic. While temperatures rarely reach extreme highs or lows, the city is famous for its atmospheric volatility and "four seasons in one day" potential.

Seasonal Breakdown

Spring (March to May)

Spring is the driest season in Antwerp, though "dry" is relative. Late March and April are known for "Aprilse grillen" (April’s whims), where sunny skies can instantly vanish behind sudden hail or rain showers. Temperatures rise from a brisk 9°C (48°F) in March to a pleasant 18°C (64°F) by late May. This is the period of the "first terrace days," when locals flock to outdoor cafes at the slightest hint of sunshine.

Summer (June to August)

Summers are mild and comfortably warm, with average highs ranging between 21°C and 24°C (70°F–75°F). However, Antwerp has seen a recent trend of short-lived heatwaves, pushing temperatures above 35°C (95°F). Summer is also one of the rainier periods; precipitation often arrives as heavy, dramatic afternoon thunderstorms that clear quickly rather than the persistent drizzle seen in winter.

Autumn (September to November)

September often provides a "Golden October" feel with mild, crisp days. By November, the maritime influence takes hold, bringing frequent winds and increased humidity. Daytime highs drop from 19°C (66°F) in September to roughly 9°C (48°F) in November. This is the season of the "Beiaardweer" (carillon weather)—overcast, slightly mystical, and damp.

Winter (December to February)

Antwerp winters are rarely freezing but frequently "raw." High humidity and steady winds from the west/southwest make even 5°C (41°F) feel significantly colder. Snow is rare and usually melts within hours, though occasional cold snaps fueled by Siberian air masses can drop temperatures well below freezing and provide a few days of "ice fun" on frozen city ponds.

Daily Rhythms and the "Feels Like" Factor

• The Grey Gold: Locals often refer to the pervasive overcast sky as "grey gold." The light is soft and diffused, which is world-renowned among photographers and fashion designers for the way it renders color.
• Wind Chill: Because Antwerp is a port city on the flat Flemish plains, wind is a constant factor. A moderate temperature can feel biting if the wind is coming off the Scheldt river.
• Diurnal Shift: In summer, the sun stays up until after 10:00 PM (22:00), providing long, cool evenings. In winter, the dampness makes the nights feel particularly heavy and cold.

Microclimates and Regional Variations

• The River Effect: The Scheldt River acts as a temperature regulator. Areas directly along the Quays (Kaaien) often feel windier and a degree or two cooler than the sheltered, narrow streets of the historical center.
• Urban Heat Island: The densest parts of the city, such as the Meir and the Diamond District, can stay 3-4°C warmer at night during summer compared to the greener outskirts like Wilrijk or Schoten.

Local Wisdom

Antwerpenaars (Antwerpians) are resilient to rain. You will see locals cycling through light drizzle without a second thought. The typical weather experience is defined by changeability; the sky is rarely one color for more than an hour. The most authentic local weather experience is the "terrasje"—sitting outdoors under a heated awning even when the temperature is cool, enjoying the brisk maritime air with a strong Belgian beer.