Best time to visit Rotterdam
The best months to visit Rotterdam are July, August and June, based on month-by-month temperature and rainfall data. The full year of weather, daylight, holidays, and festival timing is below.
July, August and June score best for Rotterdam weather:
- June21° / 11°CJune is mild and changeable, with long light for Erasmus Bridge and Katendrecht evenings.
- July23° / 13°CJuly is the warmest month, but showers still affect waterbus and terrace plans.
- August23° / 13°CAugust is warm and wet, so keep indoor architecture and food-hall stops ready.
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By TripSapien Research · Updated May 20, 2026
Rotterdam weather by month
| Month | High | Low | Rain (mm) | Rainy days | Daylight | Sea |
|---|---|---|---|---|---|---|
| January | 6° | 1° | 71 | 13 | 8h | 6° |
| February | 7° | 1° | 66 | 11 | 10h | 5° |
| March | 10° | 3° | 56 | 10 | 12h | 7° |
| April | 14° | 5° | 42 | 9 | 14h | 11° |
| May | 18° | 8° | 56 | 9 | 15h | 14° |
| JuneBest weather | 21° | 11° | 69 | 10 | 16h | 19° |
| JulyBest weather | 23° | 13° | 79 | 10 | 16h | 21° |
| AugustBest weather | 23° | 13° | 92 | 11 | 14h | 21° |
| September | 19° | 11° | 90 | 11 | 12h | 18° |
| October | 15° | 8° | 87 | 12 | 10h | 15° |
| November | 10° | 4° | 88 | 14 | 9h | 11° |
| December | 7° | 2° | 86 | 14 | 8h | 8° |
Temperatures in °C. Long-term monthly averages.
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Rotterdam month by month
January
Rotterdam in January: 6.4°C high, 1.3°C low, 71mm rain over 13 days, 8h daylight. Cold and wet — bundle up, museum and pool weather.
February
Rotterdam in February: 7.1°C high, 1.1°C low, 66mm rain over 11 days, 9.7h daylight. Mild and dry — shoulder-season sweet spot.
IFFR · Art Rotterdam · World tennis Tournament
March
Rotterdam in March: 10.3°C high, 2.7°C low, 56mm rain over 10 days, 11.5h daylight. Mild and dry — shoulder-season sweet spot.
April
Rotterdam in April: 14.3°C high, 4.8°C low, 42mm rain over 9 days, 13.6h daylight. Mild and dry — shoulder-season sweet spot.
Motel Mozaique
May
Rotterdam in May: 17.9°C high, 8.1°C low, 56mm rain over 9 days, 15.4h daylight. Mild and dry — shoulder-season sweet spot.
JuneBest weather
Rotterdam in June: 20.6°C high, 11°C low, 69mm rain over 10 days, 16.4h daylight. Mild and dry — shoulder-season sweet spot.
Poetry International · Summer Carnival
JulyBest weather
Rotterdam in July: 22.7°C high, 13.4°C low, 79mm rain over 10 days, 16h daylight. Mild and dry — shoulder-season sweet spot.
Summer Carnival
AugustBest weather
Rotterdam in August: 22.6°C high, 13.2°C low, 92mm rain over 11 days, 14.4h daylight. Mild and dry — shoulder-season sweet spot.
Summer Carnival · Heerlijk Rotterdam
September
Rotterdam in September: 19.3°C high, 10.7°C low, 90mm rain over 11 days, 12.4h daylight. Mild and dry — shoulder-season sweet spot.
October
Rotterdam in October: 14.9°C high, 7.6°C low, 87mm rain over 12 days, 10.3h daylight. Mild and dry — shoulder-season sweet spot.
November
Rotterdam in November: 10.2°C high, 4.4°C low, 88mm rain over 14 days, 8.5h daylight. Mild but rainy — flexible plans pay off.
December
Rotterdam in December: 7°C high, 1.9°C low, 86mm rain over 14 days, 7.5h daylight. Cold and wet — bundle up, museum and pool weather.
Six Days of Rotterdam
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