Change in maximum river flow in Guernsey
Guernsey: Change in maximum river flow was 28.8% in 2024. β Volatile
Change in maximum river flow in Guernsey, 2005β2024
Source: United Nations Statistics Division, SDG Global Database. Measured in %.
Analysis
The most recent figure for change in maximum river flow in Guernsey is 28.8%, measured in 2024. That is the highest value across all 20 years on record.
That represents a change of up 33.9% on the previous year and up 3,812.0% over ten years.
Over the whole period, change in maximum river flow in Guernsey peaked at 28.8% in 2024 and was at its lowest, -21.1%, in 2009.
Guernsey ranks 33rd of 210 countries on this measure, in the top quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | -11.4% | -21.1% | 7.6% | 5 |
| 2010s | -1.1% | -18.2% | 15.8% | 10 |
| 2020s | 17.9% | 5.1% | 28.8% | 5 |
Countries ranked near Guernsey
- 30 Republic of Korea 30.1% compare
- 31 Sao Tome and Principe 29.8% compare
- 32 Togo 28.9% compare
- 34 Guyana 27.5% compare
- 35 Libya 27.5% compare
- 36 Democratic People's Republic of Korea 27.5% compare
More development goals data for Guernsey
- Red List Index 0.9474 index (2025)
- Change in minimum river flow -2.2% (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 Β΅g/mΒ³ (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 maximum river flow in Guernsey?
- Change in maximum river flow in Guernsey was 28.8% in 2024, according to United Nations Statistics Division, SDG Global Database.
- What is the highest change in maximum river flow recorded in Guernsey?
- The highest recorded value was 28.8% in 2024.
- What is the lowest change in maximum river flow recorded in Guernsey?
- The lowest recorded value was -21.1% in 2009.
- How does Guernsey rank for change in maximum river flow?
- Guernsey ranks 33rd out of 210 countries with data for 2024.
- Is change in maximum river flow rising or falling in Guernsey?
- Over the last ten years it is up 3,812.0%. 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 maximum river flow (%). Statizoid updates them automatically from the source API.
Download this data
CSV Β· JSON β 20 observations, free to reuse under UN SDG Global Database (open, attribution requested).