Change in minimum river flow in Guernsey
Guernsey: Change in minimum river flow was -2.2% in 2024. ◆ Volatile
Change in minimum river flow in Guernsey, 2005–2024
Source: United Nations Statistics Division, SDG Global Database. Measured in %.
Analysis
The most recent figure for change in minimum river flow in Guernsey is -2.2%, measured in 2024.
The figure is up 70.0% on the previous year and up 88.5% over ten years.
Over the whole period, change in minimum river flow in Guernsey peaked at 39.1% in 2017 and was at its lowest, -39.3%, in 2008.
That places Guernsey 124th out of 226 countries with data for 2024, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Change in minimum river flow in Guernsey, year by year
| Year | % | Change |
|---|---|---|
| 2005 | 20.1% | — |
| 2006 | -8.9% | -144.2% |
| 2007 | -36.4% | +309.0% |
| 2008 | -39.3% | +8.0% |
| 2009 | -23.0% | -41.7% |
| 2010 | -30.1% | +31.0% |
| 2011 | -18.4% | -38.7% |
| 2012 | -22.9% | +24.1% |
| 2013 | -13.8% | -39.8% |
| 2014 | -19.0% | +38.0% |
| 2015 | 3.8% | -119.9% |
| 2016 | 29.0% | +668.4% |
| 2017 | 39.1% | +34.7% |
| 2018 | 34.1% | -12.6% |
| 2019 | 23.6% | -30.8% |
| 2020 | 6.1% | -74.0% |
| 2021 | -15.0% | -343.3% |
| 2022 | -2.0% | -86.9% |
| 2023 | -7.3% | +271.7% |
| 2024 | -2.2% | -70.0% |
Biggest year-on-year movements
Years where Change in minimum river flow in Guernsey changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 2016 | +668.4% | 3.8% | 29.0% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | -17.5% | -39.3% | 20.1% | 5 |
| 2010s | 2.5% | -30.1% | 39.1% | 10 |
| 2020s | -4.0% | -15.0% | 6.1% | 5 |
Countries ranked near Guernsey
More development goals data for Guernsey
- Red List Index 0.9474 index (2025)
- Change in maximum river flow 28.8% (2024)
- River flow maximum 3.16 m3 per sec (2024)
- River flow minimum 0.0285 m3 per sec (2024)
- Chlorophyll-a deviations, remote sensing 0.5% (2022)
- Annual mean levels of fine particulate matter (population-weighted) 8.3 µg/m³ (2023)
- Prevalence of hepatitis B surface antigen (HBsAg), 2026 methodology 0.0% (2024)
- Countries with death registration data that are at least 75 percent 1 (2024)
- Land area 6.35 ha th (2025)
- Chlorophyll-a anomaly, remote sensing 0.2% (2022)
Frequently asked questions
- What is change in minimum river flow in Guernsey?
- Change in minimum river flow in Guernsey was -2.2% in 2024, according to United Nations Statistics Division, SDG Global Database.
- What is the highest change in minimum river flow recorded in Guernsey?
- The highest recorded value was 39.1% in 2017.
- What is the lowest change in minimum river flow recorded in Guernsey?
- The lowest recorded value was -39.3% in 2008.
- How does Guernsey rank for change in minimum river flow?
- Guernsey ranks 124th out of 226 countries with data for 2024.
- Is change in minimum river flow rising or falling in Guernsey?
- Over the last ten years it is up 88.5%. The long-run trend across the full record is volatile.
- Where does this Guernsey data come from?
- The figures come from United Nations Statistics Division, SDG Global Database, published as part of Change in minimum river flow (%). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 20 observations, free to reuse under UN SDG Global Database (open, attribution requested).