Weather Guide

Belgium Average Monthly Weather

Weather score31Poor annual avg

Best months: August, July, June

Across the year, average daytime temperatures are around 14°C, sunshine averages 4.4h per day, and rainfall totals about 785mm. Sea temperatures average 7°C across the year.

Brussels, Belgium, Belgium travel weather guide
Photo by François Genon on Unsplash

Annual weather

Annual averages

Temp

14°C

Rain

785mm

Annual total

Sun

4.4h

Sea

7°C

Weather score

31

Poor avg

Seasonal climate calendar

Trip feel

Cool

Average highs are around 15°C, so pack for cooler days.

Drier

Rainfall averages 74mm, which is relatively low for holiday planning.

Limited sun

Sunshine averages 3.6h per day, so this is not one of the brighter months.

Cool sea

Sea temperatures average 9°C, so the water can feel cool.

Map

Weather map

Compare Belgium with nearby places by weather score, rain, sun, temperature, and swim conditions.

Temperature

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October15°C average high

October is close to Belgium's yearly temperature average, giving a typical read on daytime heat.

Warmest monthsJune to September

This stretch sets the upper range for average daytime heat.

October74mm average rain

October is close to Belgium's usual rainfall pattern, with little seasonal change across the year.

Driest monthsAll year

Rainfall stays comparatively low through the year.

October3.6 hours average sun

October sits close to Belgium's yearly sunshine average, so it is a middle-of-the-pack month for bright days.

Brightest monthsMay to August

This stretch has the strongest sunshine in the monthly averages.

Sea temperature

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October9°C average sea

October sits in the warmer sea-temperature season, usually making swimming easier to enjoy.

Warmest seaJuly to September

Sea temperatures are usually near 11°C in this stretch, so swimming comfort is at its strongest.

Weather score

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October23 weather score

October scores below Belgium's yearly average, so the weather trade-offs are more noticeable.

Best weather monthsJune to August

These months have the strongest weather score in the monthly averages.

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