AURSEEAursee
Wildfires in Solothurn
Detected · VIIRS 375 m · Suomi NPP, NOAA-20, NOAA-21 · last 24 hours · updated 2026-10-11 06:21 UTC
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Fire history, 2012–2025
Detected · VIIRS S-NPP 375 m · 0.01° cells (~1.1 km) · complete years 2012–2025 · built 2026-09-23
Between 2012 and 2025, VIIRS detected fire in 18 km² of Solothurn at least once. In an average year it detected fire in 3.2 km², ranking 8th of 26 regions of Switzerland.
Year by year
Detected area per year, km². Area of 0.01° cells with at least one detection in the year.
The busiest year was 2017, with 5.1 km² detected; the quietest was 2015, with 1.7 km². The 2021–2025 average is 29% lower than the 2012–2016 average.
Through the year
Share of all fire-days 2012–2025 by month. A fire-day is one cell with a detection on one day.
August, September and October together hold 35% of the fire-days in the record. The single busiest day was 2 August 2017, with detections in 4 cells.
Ground that burns again
Of the 18 km² with at least one detection, 14% had detections in three or more different years.
| Years with a detection | km² | Share |
|---|---|---|
| 1 year | 12 | 67% |
| 2 years | 3.4 | 19% |
| 3 to 5 years | 0.8 | 4.5% |
| 6 to 10 years | 0.0 | 0.0% |
| 11 years or more | 1.7 | 10% |
The half-degree square with the most fire-days is centred at 47.25, 7.75 and holds 100% of the region's fire-days.
The figures
Show the table
| Year | Detected km² | Fire-days |
|---|---|---|
| 2012 | 5.0 | 136 |
| 2013 | 5.0 | 96 |
| 2014 | 2.5 | 151 |
| 2015 | 1.7 | 148 |
| 2016 | 2.5 | 137 |
| 2017 | 5.1 | 155 |
| 2018 | 5.0 | 154 |
| 2019 | 2.5 | 160 |
| 2020 | 3.4 | 179 |
| 2021 | 1.7 | 147 |
| 2022 | 1.7 | 155 |
| 2023 | 2.5 | 119 |
| 2024 | 2.5 | 102 |
| 2025 | 3.4 | 121 |
Other regions of Switzerland
- Vaud10 km² in an average year
- Ticino6.6 km² in an average year
- Bern6.3 km² in an average year
- Zürich5.7 km² in an average year
- Fribourg5.4 km² in an average year
- Aargau5.2 km² in an average year
- How these figures are madeDetected area, cells, and the single-satellite record.
Detected area counts every 0.01° cell with at least one VIIRS detection, so a small fire counts as a whole cell and a fire missed by cloud or between passes is absent. Borders: Natural Earth 1:10m. 2012 begins on 20 January.
Nearby regions
- Lucerne37 km
- Baden-Württemberg, Germany166 km
- Varese, Italy183 km
- Meurthe-et-Moselle, France200 km
- Milano, Italy202 km
- Turin, Italy222 km