May 2025 brought relatively mild and notably dry conditions to Noord-Holland, with temperatures hovering close to seasonal norms while sunshine exceeded expectations. The month presented a mixed weather pattern typical of late spring in the Netherlands, with early warmth giving way to cooler periods and scattered rainfall.
Temperature Overview
The province experienced an average temperature of 13.5 degrees Celsius, marginally below the normal value of 13.7 degrees, representing a slight anomaly of minus 0.2 degrees. The warmest day occurred on May 1st in Amsterdam, where temperatures reached 26.5 degrees Celsius, providing an early taste of summer conditions. In stark contrast, Oostzaan recorded the month's coldest temperature of just 2.6 degrees on May 5th, illustrating the considerable temperature variability that can occur within a single week during spring months.
Precipitation Patterns
May proved significantly drier than normal across Noord-Holland. The province received an average of 50.8 millimeters of precipitation, substantially below the normal monthly total of 81.5 millimeters, representing a deficit of 38 percent. The wettest day occurred on May 27th in Haarlemmermeer, where 31.6 millimeters fell in a single day. This location also recorded the highest total precipitation for the month at 64.2 millimeters, though this remained below seasonal expectations.
Sunshine and Notable Conditions
A bright spot in May's weather was the abundance of sunshine. The province enjoyed 385.3 hours of sunshine, exceeding the normal value of 368.8 hours by approximately 4 percent. This above-average sunshine, combined with the dry conditions, created favorable conditions for outdoor activities and agricultural development throughout the month. The combination of below-normal rainfall and above-normal sunshine suggests that May 2025 was a relatively pleasant spring month for Noord-Holland residents.