August 2026 in Binningen was an exceptionally warm month, with an average temperature of 23.7 degrees Celsius, making it the warmest August in the last 20 years. The highest temperature reached 38.1 degrees Celsius on August 20, which is the hottest August day recorded at the NBCN station in the last 20 years, surpassing the previous record of 37.0 degrees set in 2015. The lowest temperature of the month was 10.3 degrees on August 23. There were 27 summer days, 18 hot days, and 4 tropical nights, all well above the 20-year averages of 17 summer days, 6 hot days, and 1 tropical night. No ice days or frost days occurred.

Precipitation totaled 52.3 millimeters, which is considerably drier than the 20-year average of 93.9 millimeters. This ranks as the 17th wettest August out of the last 20 years, meaning it was the 4th driest. The wettest day was August 21 with 16.3 millimeters, which does not meet the threshold for a notable single-day precipitation event. The driest August on record in the last 20 years was 2024 with only 26.1 millimeters, and the wettest was 2007 with 196.6 millimeters.

Compared to historical trends, August 2026 stands out primarily for its heat. The average temperature of 23.7 degrees was 3.4 degrees above the 20-year average, and the number of hot days was three times the historical norm. The maximum temperature of 38.1 degrees was a full 1.1 degrees higher than the previous record from 2015. Precipitation, while below average, was not historically extreme, as three other Augusts in the last 20 years were drier. Overall, August 2026 was a record-breaking hot and relatively dry month, marking it as the warmest August in Binningen over the past two decades.