Binningen hits 33.4°C, 122nd hottest August day on record

August 9, 2026

Yesterday’s high of 33.4°C in Binningen was part of an unusually warm 30-day period and ranks as the 122nd hottest August day on record, far below the all-time August record of 38.7°C set in 1943.

Photo: birdeye.ch, Boat on Rhine River, Wettstein bridge, on https://chatgpt.com/c/69df12aa-40b4-8397-a5b8-de5a1ef96bb8, licensed under Unsplash License.

Yesterday was an exceptionally hot day in Binningen. The temperature reached a maximum of 33.4 degrees Celsius, with a minimum of 14.2 degrees and a mean of 24.0 degrees.

Looking at the last 30 days, the weather has been notably warm. The average air temperature over this period was 24.59 degrees, with a peak of 39.7 degrees and a low of 11.2 degrees. There were 31 summer days, 8 hot days, and 6 tropical nights recorded.

For the current season, the maximum temperature of 33.4 degrees ranks as the 29th hottest day in the last 365 days, while the mean temperature ranks 44th.

Considering all years for the month of August, the hottest day on record was August 21, 1943, with a maximum temperature of 38.7 degrees. This is followed by August 13, 2003, at 38.6 degrees. The top five hottest August days, as shown in Table 1, also include August 19, 1943, and two days from earlier this month: August 4, 2026, at 37.8 degrees, and August 3, 2026, at 37.6 degrees. The maximum temperature recorded yesterday ranks as the 122nd hottest August day in the station's history.


Table 1: Top 5 Maximum Temperatures in August since 1865
Date Max Temperature [°C]
1943-08-21 38.7
2003-08-13 38.6
1943-08-19 38.4
2026-08-04 37.8
2026-08-03 37.6

Figure 1: Min, Max and Average Temperatures in August

Data source: Opendata Basel-Stadt
Additional resources: meteostat

🤖 This text was generated with the assistance of AI. All quantitative statements are derived directly from the dataset listed under Data Source.