August 2025 in South Holland presented a relatively mild and notably dry weather pattern across the province. The month unfolded with temperatures staying remarkably close to historical norms, while precipitation fell significantly below average, creating conditions that were drier than typical for this time of year.
Temperature Overview
The average temperature for August in South Holland reached 18.4 degrees Celsius, which is virtually identical to the normal value of 18.5 degrees, representing an anomaly of just minus 0.1 degrees. Despite this overall stability, the province experienced considerable temperature variation between locations and dates. The warmest conditions were recorded on August 12 in Goeree-Overflakkee, where temperatures climbed to 30.8 degrees Celsius. In sharp contrast, the coldest reading of the month occurred on August 24 in Alphen aan den Rijn, where temperatures dropped to just 8.1 degrees Celsius, illustrating the significant temperature range experienced throughout the month.
Precipitation Patterns
August proved to be considerably drier than normal across South Holland. The province received an average total of 45.1 millimeters of precipitation, representing a substantial 36 percent below the normal value of 70.6 millimeters. The wettest single day occurred on August 2 in Leidschendam-Voorburg, which recorded 15.1 millimeters of rainfall. When examining total precipitation by location, Noordwijk emerged as the wettest area with 64.1 millimeters accumulated over the month.
Sunshine and Notable Observations
Sunshine hours proved slightly above average, with the province recording 348.4 hours compared to the normal 346.0 hours, representing a one percent positive anomaly. This modest surplus in sunshine, combined with below-average rainfall, created conditions that favored drier weather patterns throughout the month. The combination of near-normal temperatures, significantly reduced precipitation, and slightly enhanced sunshine hours characterized August 2025 as a relatively pleasant and dry summer month for residents of South Holland.