June
OK
21.3°C / 13.1°C
18 rain days
mild, very wet
- comfortable temperatures (avg high 21.3°C / 70°F)
Best time to visit Rotterdam
Rotterdam, Netherlands — ranked month by month from data: temperature, rainfall, snow, and peak hazard seasons. Every month has trade-offs — pick what you can tolerate.
Best · June & May
About Rotterdam
Rotterdam is the second-largest city in the Netherlands by population and the largest by area (319.4 km2). It is in the province of South Holland, part of the North Sea mouth of the Rhine–Meuse–Scheldt delta, via the New Meuse inland shipping channel, dug to connect to the Meuse at first and now to the Rhine.
— condensed from Wikipedia
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OK — shoulder months
May
OK
17.6°C / 9.2°C
18 rain days
mild, very wet
April
OK
13.7°C / 5.5°C
17 rain days
cool, very wet
March
OK
10.7°C / 3.4°C
18 rain days
cool, very wet
February
OK
8.1°C / 2.3°C
17 rain days
chilly, very wet
Months to skip
September
Skip
19.6°C / 12.4°C
19 rain days
mild, very wet
- extremely wet (19 rain days)
July
Skip
22.4°C / 14.6°C
22 rain days
warm, very wet
- extremely wet (22 rain days)
August
Skip
22.2°C / 14.6°C
22 rain days
warm, very wet
- extremely wet (22 rain days)
October
Skip
15.4°C / 9.7°C
20 rain days
cool, very wet
- extremely wet (20 rain days)
November
Skip
10.2°C / 5.5°C
21 rain days
cool, very wet
- extremely wet (21 rain days)
December
Skip
8°C / 3.8°C
19 rain days
chilly, very wet
- extremely wet (19 rain days)
January
Skip
6.9°C / 2.5°C
22 rain days
chilly, very wet
- extremely wet (22 rain days)
How we ranked these
Each month is scored on temperature comfort (18–27°C avg high is the sweet spot), rainfall (more rain days = lower score), snow days, and peak hazard seasons (hurricanes, monsoons, etc.). Green-tier months are within ideal range with no major issues. Yellow are workable but with trade-offs. Red has at least one significant problem — extreme heat or cold, heavy rain, or peak storm season.
🇳🇱 Dutch survival phrases
The 16 phrases that will earn you smiles, food, and help when you need it. English-speaking travellers — start with the first 4 and add the rest as needed.
Hello
Hallo
HAH-loh
Thank you
Dank je / Dank u
dank yuh / dank oo
Please
Alstublieft
ahl-stoo-BLEEFT
Yes / No
Ja / Nee
yah / nay
Excuse me
Pardon / Sorry
par-DOHN
Do you speak English?
Spreekt u Engels?
spraykt oo ENG-uls
I don't understand
Ik begrijp het niet
ik buh-GHRYP huht neet
How much?
Hoeveel?
HOO-vayl
The bill, please
De rekening, alstublieft
duh RAY-kun-ing
Water
Water
VAH-tur
Where is…?
Waar is…?
vahr is
Bathroom
Toilet
twah-LET
Help!
Help!
help
Call the police
Bel de politie
bel duh po-LEET-see
I need a doctor
Ik heb een dokter nodig
ik hep un DOK-ter NOH-dikh
I'm allergic to…
Ik ben allergisch voor…
ik ben ah-LEHR-ghees vor
Pronunciations are rough English approximations — they'll get you understood, even if your tones aren't perfect.