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Surface water in Mnquma

In 2025, Mnquma had 9.54 km² of open water on average, 6.78 km² of it nearly all year. The wettest year since 1984 was 2023 (11.6 km²); the driest 2017 (6.10 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 38 years in which at least 90% as much of the place was seen as in its best year (3 less well seen years are left out), so a cloudy year cannot pass for a dry one.

Every year since 1984

1984: 3.46 km² on average, 3.25 km² permanent1985: 0.77 km² on average, 0.77 km² permanent1986: 10.5 km² on average, 8.59 km² permanent1987: 2.19 km² on average, 2.10 km² permanent1988: not held1989: 10.4 km² on average, 6.90 km² permanent1990: 11.5 km² on average, 6.78 km² permanent1991: 9.11 km² on average, 6.69 km² permanent1992: 8.55 km² on average, 5.88 km² permanent1993: 7.14 km² on average, 3.68 km² permanent1994: 8.53 km² on average, 4.65 km² permanent1995: 7.50 km² on average, 4.36 km² permanent1996: 9.47 km² on average, 4.14 km² permanent1997: 9.72 km² on average, 5.64 km² permanent1998: 10.2 km² on average, 6.14 km² permanent1999: 8.27 km² on average, 5.83 km² permanent2000: 9.46 km² on average, 6.29 km² permanent2001: 9.27 km² on average, 6.63 km² permanent2002: 9.31 km² on average, 7.24 km² permanent2003: 8.92 km² on average, 6.68 km² permanent2004: 9.14 km² on average, 6.35 km² permanent2005: 8.28 km² on average, 6.21 km² permanent2006: 9.97 km² on average, 6.82 km² permanent2007: 8.39 km² on average, 5.89 km² permanent2008: 8.42 km² on average, 5.68 km² permanent2009: 8.47 km² on average, 5.93 km² permanent2010: 6.38 km² on average, 4.25 km² permanent2011: 8.43 km² on average, 5.39 km² permanent2012: 9.46 km² on average, 6.79 km² permanent2013: 8.16 km² on average, 5.71 km² permanent2014: 8.84 km² on average, 6.40 km² permanent2015: 8.40 km² on average, 5.88 km² permanent2016: 6.16 km² on average, 4.34 km² permanent2017: 6.10 km² on average, 4.15 km² permanent2018: 6.77 km² on average, 3.88 km² permanent2019: 6.31 km² on average, 3.48 km² permanent2020: 6.60 km² on average, 3.47 km² permanent2021: 8.21 km² on average, 4.09 km² permanent2022: 11.4 km² on average, 7.11 km² permanent2023: 11.6 km² on average, 7.12 km² permanent2024: 8.72 km² on average, 6.25 km² permanent2025: 9.54 km² on average, 6.78 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
19843.46 km² on average, 3.25 km² permanent
19850.77 km² on average, 0.77 km² permanent
198610.5 km² on average, 8.59 km² permanent
19872.19 km² on average, 2.10 km² permanent
1988not held
198910.4 km² on average, 6.90 km² permanent
199011.5 km² on average, 6.78 km² permanent
19919.11 km² on average, 6.69 km² permanent
19928.55 km² on average, 5.88 km² permanent
19937.14 km² on average, 3.68 km² permanent
19948.53 km² on average, 4.65 km² permanent
19957.50 km² on average, 4.36 km² permanent
19969.47 km² on average, 4.14 km² permanent
19979.72 km² on average, 5.64 km² permanent
199810.2 km² on average, 6.14 km² permanent
19998.27 km² on average, 5.83 km² permanent
20009.46 km² on average, 6.29 km² permanent
20019.27 km² on average, 6.63 km² permanent
20029.31 km² on average, 7.24 km² permanent
20038.92 km² on average, 6.68 km² permanent
20049.14 km² on average, 6.35 km² permanent
20058.28 km² on average, 6.21 km² permanent
20069.97 km² on average, 6.82 km² permanent
20078.39 km² on average, 5.89 km² permanent
20088.42 km² on average, 5.68 km² permanent
20098.47 km² on average, 5.93 km² permanent
20106.38 km² on average, 4.25 km² permanent
20118.43 km² on average, 5.39 km² permanent
20129.46 km² on average, 6.79 km² permanent
20138.16 km² on average, 5.71 km² permanent
20148.84 km² on average, 6.40 km² permanent
20158.40 km² on average, 5.88 km² permanent
20166.16 km² on average, 4.34 km² permanent
20176.10 km² on average, 4.15 km² permanent
20186.77 km² on average, 3.88 km² permanent
20196.31 km² on average, 3.48 km² permanent
20206.60 km² on average, 3.47 km² permanent
20218.21 km² on average, 4.09 km² permanent
202211.4 km² on average, 7.11 km² permanent
202311.6 km² on average, 7.12 km² permanent
20248.72 km² on average, 6.25 km² permanent
20259.54 km² on average, 6.78 km² permanent
YearWater on averagePermanentSeasonalWet at some pointSeen
20259.54 km²6.78 km²13.3 km²20.1 km²75%
20248.72 km²6.25 km²15.5 km²21.7 km²75%
202311.6 km²7.12 km²60.0 km²67.1 km²75%
202211.4 km²7.11 km²55.1 km²62.2 km²75%
20218.21 km²4.09 km²54.0 km²58.1 km²75%
20206.60 km²3.47 km²20.8 km²24.3 km²75%
20196.31 km²3.48 km²32.2 km²35.6 km²75%
20186.77 km²3.88 km²16.3 km²20.2 km²75%
20176.10 km²4.15 km²10.2 km²14.3 km²75%
20166.16 km²4.34 km²8.49 km²12.8 km²75%
20158.40 km²5.88 km²16.6 km²22.4 km²75%
20148.84 km²6.40 km²8.57 km²15.0 km²75%
20138.16 km²5.71 km²12.5 km²18.2 km²75%
20129.46 km²6.79 km²10.1 km²16.9 km²75%
20118.43 km²5.39 km²9.15 km²14.5 km²75%
20106.38 km²4.25 km²5.79 km²10.0 km²75%
20098.47 km²5.93 km²12.8 km²18.7 km²75%
20088.42 km²5.68 km²8.57 km²14.3 km²75%
20078.39 km²5.89 km²11.5 km²17.4 km²75%
20069.97 km²6.82 km²16.5 km²23.4 km²75%
20058.28 km²6.21 km²6.87 km²13.1 km²75%
20049.14 km²6.35 km²11.2 km²17.5 km²75%
20038.92 km²6.68 km²5.39 km²12.1 km²75%
20029.31 km²7.24 km²8.60 km²15.8 km²75%
20019.27 km²6.63 km²10.2 km²16.8 km²75%
20009.46 km²6.29 km²14.3 km²20.5 km²75%
19998.27 km²5.83 km²6.30 km²12.1 km²75%
199810.2 km²6.14 km²18.2 km²24.3 km²75%
19979.72 km²5.64 km²16.5 km²22.1 km²75%
19969.47 km²4.14 km²28.8 km²32.9 km²75%
19957.50 km²4.36 km²14.2 km²18.5 km²75%
19948.53 km²4.65 km²18.0 km²22.6 km²75%
19937.14 km²3.68 km²10.1 km²13.8 km²75%
19928.55 km²5.88 km²12.9 km²18.8 km²75%
19919.11 km²6.69 km²9.37 km²16.1 km²75%
199011.5 km²6.78 km²14.9 km²21.7 km²75%
198910.4 km²6.90 km²10.0 km²16.9 km²75%
19872.19 km²2.10 km²0.19 km²2.29 km²18%
198610.5 km²8.59 km²4.14 km²12.7 km²75%
19850.77 km²0.77 km²none0.77 km²8%
19843.46 km²3.25 km²0.50 km²3.75 km²65%

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 Mnquma · 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.

Unmapped Dataworks