Belgium

Best time to visit Brussels

Based on 0 years of real historical weather data (2015–2026). Sunshine hours, rainfall, and temperature — week by week.

⭐ Best week

W34 · Aug 19–25

🌡 23.7°C avg☀️ 10.9h sun/day🌧 0.9mm/day

Weather score: 92/100

22.9°C

Avg summer temp

7.5°C

Avg winter temp

7.8h

Avg sunshine / day

2.1mm

Avg rainfall / day

Month-by-month weather

January42/100

🌡 6.2°C☀️ 3.5h🌧 Light showers

February54/100

🌡 8.1°C☀️ 5.5h🌧 Light showers

March63/100

🌡 11.1°C☀️ 7.3h🌧 Light showers

April80/100

🌡 14.2°C☀️ 10.0h🌧 Light showers

May86/100

🌡 18.5°C☀️ 11.0h🌧 Light showers

June89/100

🌡 22.2°C☀️ 11.4h🌧 Light showers

July89/100

🌡 23.3°C☀️ 11.5h🌧 Light showers

August92/100

🌡 23.3°C☀️ 10.8h🌧 Light showers

September88/100

🌡 19.9°C☀️ 8.8h🌧 Light showers

October68/100

🌡 15.1°C☀️ 6.1h🌧 Light showers

November57/100

🌡 9.5°C☀️ 4.3h🌧 Light showers

December41/100

🌡 8.2°C☀️ 3.3h🌧 Light showers

All weeks ranked by weather score

Week	Dates	Avg temp	Range	Sun / day	Rain / day	Score
W34	Aug 19–25	23.7°C	12.0°–27.8°	10.9h	0.9mm	92
W32	Aug 5–11	24.2°C	11.7°–28.2°	11.7h	1.3mm	90
W26	Jun 24–30	22.5°C	10.9°–26.0°	11.3h	2.1mm	89
W27	Jul 1–7	23.4°C	11.3°–26.3°	12.7h	1.7mm	89
W35	Aug 26–Sep 1	22.5°C	10.8°–26.2°	10.4h	2.0mm	89
W36	Sep 2–8	21.6°C	10.4°–25.7°	9.6h	1.7mm	88
W24	Jun 10–16	22.1°C	10.1°–25.9°	12.2h	2.4mm	87
W28	Jul 8–14	22.1°C	10.8°–25.8°	11.5h	2.3mm	87
W31	Jul 29–Aug 4	22.7°C	11.8°–26.7°	11.1h	2.4mm	87
W22	May 27–Jun 2	21.1°C	8.7°–25.5°	11.3h	2.1mm	86
W23	Jun 3–9	21.8°C	9.7°–26.4°	11.5h	2.3mm	86
W21	May 20–26	19.7°C	7.1°–23.3°	12.0h	1.5mm	85
W25	Jun 17–23	22.2°C	10.8°–26.8°	10.4h	2.7mm	85
W29	Jul 15–21	23.9°C	12.4°–28.1°	11.1h	2.2mm	85
W30	Jul 22–28	23.6°C	12.5°–26.8°	10.8h	2.5mm	85
W33	Aug 12–18	23.3°C	12.9°–26.7°	9.8h	2.5mm	84
W37	Sep 9–15	20.6°C	9.6°–23.7°	9.2h	1.8mm	83
W16	Apr 15–21	15.8°C	2.1°–19.7°	11.2h	0.6mm	80
W38	Sep 16–22	19.9°C	8.5°–23.2°	8.8h	2.0mm	80
W20	May 13–19	17.7°C	5.4°–22.0°	11.0h	1.7mm	79
W19	May 6–12	18.1°C	5.5°–21.6°	10.7h	2.2mm	78
W15	Apr 8–14	14.4°C	2.2°–17.8°	9.8h	1.2mm	74
W18	Apr 29–May 5	15.8°C	3.1°–20.8°	10.1h	1.9mm	74
W17	Apr 22–28	14.6°C	2.6°–18.7°	10.7h	1.7mm	73
W40	Sep 30–Oct 6	16.4°C	7.2°–19.4°	7.7h	2.3mm	68
W41	Oct 7–13	16.6°C	5.6°–20.4°	6.6h	2.0mm	67
W39	Sep 23–29	17.7°C	7.7°–20.7°	7.7h	3.4mm	66
W12	Mar 18–24	11.8°C	0.5°–15.1°	7.9h	1.3mm	63
W14	Apr 1–7	11.9°C	0.2°–16.6°	8.4h	1.7mm	63
W13	Mar 25–31	12.1°C	-0.0°–16.8°	7.8h	1.9mm	61
W42	Oct 14–20	15.0°C	5.5°–18.9°	5.7h	2.3mm	60
W43	Oct 21–27	15.1°C	6.6°–17.6°	4.5h	2.0mm	57
W45	Nov 4–10	11.6°C	2.0°–14.3°	5.6h	1.7mm	57
W44	Oct 28–Nov 3	12.6°C	4.0°–15.5°	5.8h	2.1mm	56
W7	Feb 12–18	10.0°C	-0.5°–13.4°	6.5h	1.8mm	54
W8	Feb 19–25	8.9°C	-1.3°–11.4°	6.5h	1.6mm	53
W11	Mar 11–17	10.5°C	0.3°–13.0°	6.5h	2.3mm	52
W9	Feb 26–Mar 3	8.2°C	-2.1°–12.1°	6.0h	2.3mm	48
W10	Mar 4–10	10.0°C	-0.7°–13.2°	6.8h	3.5mm	47
W46	Nov 11–17	10.8°C	2.6°–13.1°	4.1h	2.5mm	47
W6	Feb 5–11	5.6°C	-3.4°–8.3°	5.1h	2.0mm	43
W47	Nov 18–24	9.0°C	1.0°–12.1°	3.8h	2.6mm	43
W3	Jan 15–21	5.6°C	-2.4°–8.6°	4.5h	2.0mm	42
W50	Dec 9–15	6.5°C	-0.0°–9.0°	3.5h	2.1mm	41
W52	Dec 23–29	9.3°C	1.2°–12.6°	3.1h	2.5mm	41
W48	Nov 25–Dec 1	6.7°C	-1.6°–10.3°	3.5h	2.3mm	40
W51	Dec 16–22	9.5°C	2.4°–11.9°	2.9h	3.0mm	39
W4	Jan 22–28	5.9°C	-2.3°–9.6°	3.0h	2.0mm	38
W49	Dec 2–8	7.4°C	-0.2°–10.0°	3.5h	2.8mm	38
W1	Jan 1–7	6.6°C	0.1°–9.0°	3.0h	2.5mm	37
W2	Jan 8–14	6.8°C	-0.8°–9.4°	3.6h	3.2mm	35
W5	Jan 29–Feb 4	7.7°C	-0.4°–10.3°	3.2h	3.4mm	34

Explore Brussels weather interactively

Dive deeper — compare individual weeks, see year-by-year variation, and download the data as Excel.

Search Brussels →