Belgium weather in May 2025

The temperatures in Belgium in May are quite cold with temperatures between 9°C and 18°C, warm clothes are a must.

You can expect about 3 to 8 days of rain in Belgium during the month of May. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.

Our weather forecast can give you a great sense of what weather to expect in Belgium in May 2025.

If you’re planning to visit Belgium in the near future, we highly recommend that you review the 14 day weather forecast for Belgium before you arrive.

Temperatures

18° / 9°

Rainy Days

Snowy Days

Dry Days

Rainfall

Sun Hours

8.9

Hrs

Sun	Mon	Tue	Wed	Thu	Fri	Sat
				1 16° /7°	2 14° /6°	3 14° /5°
4 13° /7°	5 14° /6°	6 15° /6°	7 16° /8°	8 16° /8°	9 19° /9°	10 17° /10°
11 17° /8°	12 16° /8°	13 17° /8°	14 17° /8°	15 15° /7°	16 16° /8°	17 17° /9°
18 18° /10°	19 19° /10°	20 18° /10°	21 19° /11°	22 18° /10°	23 17° /9°	24 17° /9°
25 18° /9°	26 19° /9°	27 18° /10°	28 18° /8°	29 18° /8°	30 18° /10°	31 19° /10°

Explore the weather in Belgium in other months

Belgium annual weather

Month	Temperatures	Rainy Days	Dry Days	Snowy Days	Rainfall	Weather	More details
January	5° / 1°	9	16	6	90 mm	Awful	Belgium in January
February	7° / 2°	8	15	6	72 mm	Awful	Belgium in February
March	11° / 4°	7	22	2	72 mm	Awful	Belgium in March
April	15° / 6°	4	25	1	53 mm	Good	Belgium in April
May	18° / 9°	6	25	0	87 mm	Good	Belgium in May
June	21° / 12°	6	24	0	99 mm	Good	Belgium in June
July	23° / 14°	6	25	0	95 mm	Perfect	Belgium in July
August	23° / 15°	5	26	0	99 mm	Perfect	Belgium in August
September	20° / 12°	4	26	0	60 mm	Good	Belgium in September
October	15° / 9°	5	26	0	71 mm	Good	Belgium in October
November	10° / 5°	7	21	1	84 mm	Bad	Belgium in November
December	6° / 3°	9	17	4	103 mm	Awful	Belgium in December