September 2025 brought cooler and slightly drier conditions to Flevoland compared to historical averages. The month was characterized by moderate temperatures and variable weather patterns typical of early autumn in the Netherlands.
Temperature Overview
The average temperature for September in Flevoland reached 15.0 degrees Celsius, which was 1.3 degrees below the normal average of 16.3 degrees. This cooler-than-average month saw significant temperature variation across the province. The warmest day occurred in Almere on September 7th, when temperatures climbed to 25.9 degrees Celsius, providing a pleasant early autumn day. In contrast, the coldest conditions were recorded in Dronten on September 24th, with a minimum of just 6.5 degrees Celsius, marking the transition toward winter weather patterns.
Precipitation Patterns
Flevoland experienced slightly below-normal rainfall during September, with an average total of 71.5 millimeters compared to the normal 78.3 millimeters, representing a 9 percent deficit. The wettest day of the month occurred in Almere on September 9th, when 20.3 millimeters of precipitation fell. Almere also recorded the highest total precipitation for the month at 72.1 millimeters, indicating that rainfall was concentrated in certain areas and periods rather than evenly distributed throughout the province.
Sunshine Duration
Sunshine hours were marginally below average, with 277.7 hours recorded against a normal of 283.3 hours, representing a 2 percent reduction. This slight deficit reflects the typical cloud cover and occasional rainy periods experienced during early autumn.
Notable Observations
The month demonstrated the characteristic variability of September weather in Flevoland, with warm early-month conditions giving way to cooler temperatures as the month progressed. The temperature range of 19.4 degrees between the warmest and coldest days underscores the dynamic nature of the season as summer transitions to autumn.