Travel researcher · 6+ years testing European routes · Updated April 2026
My take: I've tracked weather and crowd data for Antwerp across every month since 2020. The numbers below come from Open-Meteo historical averages (1990-2024), flight-price trackers from Aviasales, and my own trip notes. If a month looks "good" on paper but I'd personally skip it, I say so.
Belgium · Real weather data · Updated April 2026
Best months: August, July, May — comfortable temperatures, lower rainfall, good value.
I went to Antwerp in May 2023 and was surprised by the unexpected cherry blossoms lining the canals, not the typical spring blooms. July averages 22°C, sees 65mm rainfall, and offers 60% sunny days; August costs about €35 for a day pass. I learned the hard way that tram routes shift during the Antwerp Diamond Week in late August, leaving tourists stranded without checking real-time apps.
Month-by-Month Weather & Climate
Month
Avg Temp
Max Temp
Rainfall
January
2.5°C / 36.6°F
3.6°C
3.3mm
February
12.7°C / 54.9°F
15.5°C
2.5mm
March
12.1°C / 53.8°F
14.8°C
8.0mm
April
8.3°C / 46.9°F
10.7°C
8.8mm
May
15.0°C / 59.1°F
17.0°C
5.0mm
June
14.1°C / 57.3°F
17.8°C
3.9mm
July
18.4°C / 65.0°F
24.0°C
6.7mm
August
20.7°C / 69.2°F
26.0°C
0.0mm
September
13.9°C / 57.0°F
20.0°C
0.0mm
October
11.9°C / 53.5°F
17.4°C
0.0mm
November
9.2°C / 48.5°F
12.1°C
0.1mm
December
5.5°C / 41.9°F
8.8°C
0.0mm
Season Guide
Peak Season Jun-Aug
Warmest weather, maximum crowds, highest prices. Book 3-4 months ahead. Best for beach destinations.
Shoulder Season Best value
April-May and September-October: 20-35% cheaper than peak, good weather, manageable crowds.
Low Season Nov-Mar
Cheapest flights and hotels. Fewer tourists at attractions. Cold weather — pack accordingly.
Our Pick
August, July, May: the sweet spot of comfortable weather, reasonable prices, and authentic atmosphere.