Early October Heat Reaches 24.6°C, Among Warmest on Record

October 7, 2026

Today was unusually warm for early October at 24.6 °C, though not a Hot Day, and it ranks among the warmer October days historically but well outside the top five. Over the last 30 days, temperatures ranged from 5.8 °C to 32.6 °C, with 13 summer days and 3 Hot Days recorded.

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

Today was an unusually hot day for early October, with a maximum temperature of 24.6 °C, a minimum of 9.6 °C, and a daily mean of 16.2 °C. Although this did not qualify as a Hot Day, which requires a maximum of at least 30 °C, the warmth was still notable for the season. Over the last 30 days, the average air temperature was 18.0 °C, with a minimum of 5.8 °C and a maximum of 32.6 °C. During that period there were 13 summer days, 3 Hot Days, and no tropical nights, where the temperature would have remained at or above 20 °C overnight.

Looking at the current season, today’s maximum temperature ranked 110th among the last 365 days, while the mean temperature ranked 126th, indicating that many warmer days occurred during the summer months. For all years in October, today’s maximum of 24.6 °C ranks 70th historically, while the mean temperature ranks 164th. The hottest October day ever recorded at this station was 3 October 1985, with 29.6 °C, followed by 3 October 1929 at 29.2 °C. Table 1 lists the top five hottest October days, with the most recent entry being 13 October 2023 at 28.7 °C. Today’s maximum temperature therefore sits well outside the top five but still among the warmer October days on record.


Table 1: Top 5 Maximum Temperatures in October since 1865
Date Max Temperature [°C]
1985-10-03 29.6
1929-10-03 29.2
2023-10-13 28.7
1876-10-05 28.5
2009-10-07 28.2

Figure 1: Min, Max and Average Temperatures [°C] in October

Figure 2: Incremental Number of Heat-Days (≥ 30 °C)

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.