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Surface water in Breede Valley

In 2025, Breede Valley had 47.3 km² of open water on average, 41.4 km² of it nearly all year. The wettest year since 1984 was 1984 (55.2 km²); the driest 2017 (34.4 km²).

Open water seen on the ground from space: dams, lakes, rivers wide enough to see, pans, wetlands with open water and flooded fields. Each year, the Landsat satellites look at every 30 m spot many times; where the sky is clear, each look says water or not. The average water area counts each spot for the share of its clear looks that were wet. Permanent water was wet in more than 80% of the clear looks; seasonal water was wet at least once but less often than that.

What it isn’t: not how full a dam is (that is the Department of Water and Sanitation’s weekly level, by volume), not groundwater, not rain, and not water in pipes or tanks. Narrow rivers, water under trees or bridges and anything smaller than about 30 m are missed. A year with few clear looks (cloud, or the early years when fewer satellites flew) is less sure, and 1988 is missing everywhere because Digital Earth Africa does not have it: a missing year is left out, never counted as dry.

2025

The wettest and driest years

Among the 40 years in which at least 90% as much of the place was seen as in its best year (1 less well seen year is left out), so a cloudy year cannot pass for a dry one.

Every year since 1984

1984: 55.2 km² on average, 35.0 km² permanent1985: 32.5 km² on average, 32.5 km² permanent1986: 44.8 km² on average, 41.0 km² permanent1987: 39.5 km² on average, 35.5 km² permanent1988: not held1989: 42.9 km² on average, 32.0 km² permanent1990: 50.8 km² on average, 36.7 km² permanent1991: 46.4 km² on average, 35.1 km² permanent1992: 50.3 km² on average, 38.4 km² permanent1993: 51.0 km² on average, 38.2 km² permanent1994: 43.6 km² on average, 32.5 km² permanent1995: 44.5 km² on average, 33.2 km² permanent1996: 49.1 km² on average, 37.1 km² permanent1997: 47.1 km² on average, 38.1 km² permanent1998: 44.6 km² on average, 36.5 km² permanent1999: 43.5 km² on average, 38.1 km² permanent2000: 44.0 km² on average, 36.0 km² permanent2001: 44.9 km² on average, 30.2 km² permanent2002: 46.1 km² on average, 39.3 km² permanent2003: 41.8 km² on average, 35.2 km² permanent2004: 34.8 km² on average, 27.2 km² permanent2005: 45.4 km² on average, 30.5 km² permanent2006: 48.4 km² on average, 38.3 km² permanent2007: 46.1 km² on average, 36.0 km² permanent2008: 51.9 km² on average, 43.0 km² permanent2009: 49.4 km² on average, 41.2 km² permanent2010: 46.4 km² on average, 39.7 km² permanent2011: 44.0 km² on average, 36.0 km² permanent2012: 46.2 km² on average, 37.8 km² permanent2013: 49.3 km² on average, 39.3 km² permanent2014: 51.8 km² on average, 43.9 km² permanent2015: 45.3 km² on average, 38.0 km² permanent2016: 41.3 km² on average, 31.8 km² permanent2017: 34.4 km² on average, 27.4 km² permanent2018: 37.3 km² on average, 23.7 km² permanent2019: 40.4 km² on average, 31.4 km² permanent2020: 41.8 km² on average, 31.6 km² permanent2021: 47.3 km² on average, 37.9 km² permanent2022: 46.5 km² on average, 40.0 km² permanent2023: 53.1 km² on average, 42.0 km² permanent2024: 52.0 km² on average, 42.8 km² permanent2025: 47.3 km² on average, 41.4 km² permanent198519901995200020052010201520202025
The average water area each year (the whole bar), and the part that was water nearly all year (darker). A gap is a year Digital Earth Africa does not have.
Show the numbers
The average water area each year, 1984 to 2025: every figure
When or whatFigure
198455.2 km² on average, 35.0 km² permanent
198532.5 km² on average, 32.5 km² permanent
198644.8 km² on average, 41.0 km² permanent
198739.5 km² on average, 35.5 km² permanent
1988not held
198942.9 km² on average, 32.0 km² permanent
199050.8 km² on average, 36.7 km² permanent
199146.4 km² on average, 35.1 km² permanent
199250.3 km² on average, 38.4 km² permanent
199351.0 km² on average, 38.2 km² permanent
199443.6 km² on average, 32.5 km² permanent
199544.5 km² on average, 33.2 km² permanent
199649.1 km² on average, 37.1 km² permanent
199747.1 km² on average, 38.1 km² permanent
199844.6 km² on average, 36.5 km² permanent
199943.5 km² on average, 38.1 km² permanent
200044.0 km² on average, 36.0 km² permanent
200144.9 km² on average, 30.2 km² permanent
200246.1 km² on average, 39.3 km² permanent
200341.8 km² on average, 35.2 km² permanent
200434.8 km² on average, 27.2 km² permanent
200545.4 km² on average, 30.5 km² permanent
200648.4 km² on average, 38.3 km² permanent
200746.1 km² on average, 36.0 km² permanent
200851.9 km² on average, 43.0 km² permanent
200949.4 km² on average, 41.2 km² permanent
201046.4 km² on average, 39.7 km² permanent
201144.0 km² on average, 36.0 km² permanent
201246.2 km² on average, 37.8 km² permanent
201349.3 km² on average, 39.3 km² permanent
201451.8 km² on average, 43.9 km² permanent
201545.3 km² on average, 38.0 km² permanent
201641.3 km² on average, 31.8 km² permanent
201734.4 km² on average, 27.4 km² permanent
201837.3 km² on average, 23.7 km² permanent
201940.4 km² on average, 31.4 km² permanent
202041.8 km² on average, 31.6 km² permanent
202147.3 km² on average, 37.9 km² permanent
202246.5 km² on average, 40.0 km² permanent
202353.1 km² on average, 42.0 km² permanent
202452.0 km² on average, 42.8 km² permanent
202547.3 km² on average, 41.4 km² permanent
YearWater on averagePermanentSeasonalWet at some pointSeen
202547.3 km²41.4 km²42.7 km²84.2 km²61%
202452.0 km²42.8 km²124 km²166 km²61%
202353.1 km²42.0 km²102 km²144 km²61%
202246.5 km²40.0 km²90.8 km²131 km²61%
202147.3 km²37.9 km²117 km²155 km²61%
202041.8 km²31.6 km²71.9 km²104 km²61%
201940.4 km²31.4 km²58.1 km²89.5 km²61%
201837.3 km²23.7 km²65.1 km²88.8 km²61%
201734.4 km²27.4 km²54.8 km²82.2 km²61%
201641.3 km²31.8 km²55.5 km²87.3 km²61%
201545.3 km²38.0 km²54.7 km²92.6 km²61%
201451.8 km²43.9 km²110 km²154 km²61%
201349.3 km²39.3 km²58.4 km²97.7 km²61%
201246.2 km²37.8 km²38.4 km²76.2 km²61%
201144.0 km²36.0 km²37.7 km²73.7 km²61%
201046.4 km²39.7 km²32.0 km²71.7 km²61%
200949.4 km²41.2 km²36.4 km²77.6 km²61%
200851.9 km²43.0 km²47.5 km²90.6 km²61%
200746.1 km²36.0 km²55.3 km²91.3 km²61%
200648.4 km²38.3 km²64.2 km²103 km²61%
200545.4 km²30.5 km²94.7 km²125 km²61%
200434.8 km²27.2 km²36.9 km²64.1 km²61%
200341.8 km²35.2 km²42.8 km²78.0 km²61%
200246.1 km²39.3 km²41.4 km²80.7 km²61%
200144.9 km²30.2 km²82.7 km²113 km²61%
200044.0 km²36.0 km²39.4 km²75.4 km²61%
199943.5 km²38.1 km²19.7 km²57.9 km²61%
199844.6 km²36.5 km²43.3 km²79.9 km²61%
199747.1 km²38.1 km²60.4 km²98.6 km²61%
199649.1 km²37.1 km²67.7 km²105 km²61%
199544.5 km²33.2 km²53.9 km²87.1 km²61%
199443.6 km²32.5 km²46.5 km²79.0 km²61%
199351.0 km²38.2 km²99.1 km²137 km²61%
199250.3 km²38.4 km²86.8 km²125 km²61%
199146.4 km²35.1 km²94.9 km²130 km²61%
199050.8 km²36.7 km²113 km²149 km²61%
198942.9 km²32.0 km²54.7 km²86.7 km²61%
198739.5 km²35.5 km²7.63 km²43.1 km²61%
198644.8 km²41.0 km²8.14 km²49.1 km²61%
198532.5 km²32.5 km²none32.5 km²38%
198455.2 km²35.0 km²62.6 km²97.6 km²61%

A year missing from the table is one Digital Earth Africa does not have for this place (1988 everywhere, 1985 in some places).

Each ward

Places in each ward: © OpenStreetMap contributors.

Every municipality, ranked · Everything we hold for Breede Valley · On the explore map

Source

Measured from space by the American Landsat satellites: not a survey on the ground.

Credits and how we worked this out

Water Observations from Space, Digital Earth Africa (CC BY 4.0), modified: we counted each 30 m pixel over every 2026 ward and added the wards up into municipalities, districts and provinces. Under CC BY 4.0, from the AWS Registry of Open Data.

Landsat imagery courtesy of the U.S. Geological Survey.

Mueller, N. and others (2016): Water observations from space: mapping surface water from 25 years of Landsat imagery across Australia, Remote Sensing of Environment 174, 341 to 352.

Dataset: surface water by ward, release of 12 November 2026.

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