Rotterdam weather in May
May is one of the best months to visit Rotterdam: highs of 16°C (61°F) and about 56 mm (2.2 in) of rain on average. Nights average 9°C (49°F) and cloud cover 65% (NASA POWER, 2001–2025 averages). It is the 3rd driest month of the year and the 5th warmest. Compared with April, it is warmer and wetter; June brings highs of 19°C (66°F) and 62 mm (2.4 in) of rain.
Is May a good time to visit Rotterdam?
best month Weather score 66/100.
Yes. May is one of the best months for weather in Rotterdam.
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Does it rain a lot in Rotterdam in May?
No, it is usually dry: about 56 mm (2.2 in) falls in an average May. It is the 3rd driest month of the year.
How warm is Rotterdam in May?
Days average 16°C (61°F) and nights 9°C (49°F).
Rotterdam weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 6°C (42°F) | 2°C (36°F) | 77 mm | 74% | least pleasant |
| February | 6°C (43°F) | 2°C (35°F) | 66 mm | 72% | least pleasant |
| March | 9°C (47°F) | 3°C (38°F) | 55 mm | 66% | least pleasant |
| April | 13°C (55°F) | 6°C (42°F) | 38 mm | 61% | fair |
| May | 16°C (61°F) | 9°C (49°F) | 56 mm | 65% | best |
| June | 19°C (66°F) | 13°C (55°F) | 62 mm | 67% | best |
| July | 21°C (70°F) | 15°C (59°F) | 78 mm | 64% | best |
| August | 21°C (71°F) | 15°C (59°F) | 87 mm | 64% | best |
| September | 19°C (66°F) | 13°C (55°F) | 70 mm | 61% | best |
| October | 15°C (58°F) | 10°C (49°F) | 79 mm | 68% | fair |
| November | 10°C (50°F) | 6°C (43°F) | 81 mm | 73% | least pleasant |
| December | 7°C (44°F) | 3°C (38°F) | 85 mm | 74% | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
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