It was an exceptionally hot day at the NBCN weather station in Binningen. The minimum temperature was 19.5 degrees Celsius, the maximum reached 38.0 degrees, and the average temperature for the day was 29.5 degrees.

Over the last 30 days, the average temperature has been 21.63 degrees, with a minimum of 9.4 degrees and a maximum of 38.0 degrees. This period included 21 summer days, 13 hot days, and one tropical night. For the current season, this day ranks as the hottest day for both maximum and mean temperature compared to the last 365 days. Looking at all years for this season, the hottest day in June remains June 27, 1947, with a maximum temperature of 38.4 degrees. The hottest day for all years is also that same date. The top five hottest June days are listed in Table 1. The maximum temperature of 38.0 degrees on June 25, 2026, is the second-highest June temperature on record.