Amsterdam averages about 830 mm (roughly 33 inches) of rain a year, distributed fairly evenly across the seasons with a slight peak in autumn, reflecting its exposure to a steady rotation of Atlantic and North Sea weather systems. Much of the city sits below sea level and relies on an extensive system of canals, pumps, and dikes to manage water, which generally handles routine rainfall well, but prolonged heavy rain combined with storm surge from the North Sea can still strain the system during the wetter months. Short, sharp showers are common year-round, often passing quickly but with enough intensity to catch cyclists and pedestrians off guard, which matters in a city where so much daily transport happens outdoors. Because conditions can change within the hour here, radar is a practical everyday tool rather than something reserved for storm season. The Royal Netherlands Meteorological Institute, KNMI, operates the national weather radar network.
Learn more: How Does Rain Radar Work? · Open the full Rain Map