Rotterdam Climate and Weather
Like most of the Netherlands, Rotterdam has a temperate oceanic climate, though its position on the coast gives it slightly milder weather than cities further inland.
Summers (June to August) are warm but rarely get too hot, with average temperatures staying between lows of 54°F (12°C) and highs of 72°F (22°C). The city sees roughly ten rainy days per month. Days are long and sunny, and many residents head to the beach.
The temperature cools off a bit as autumn gives way to winter, but it stays fairly mild and doesn't often dip below 32°F (0°C). Late autumn and early winter (October to December) tend to be the wettest months, while April and May are the driest.
The best time to visit Rotterdam is in late spring (May and June). However, the weather is usually unpredictable and visitors should always be prepared for sudden showers or swings in temperature.