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Heat in Ward 6, Richtersveld

Summer 2024/25: the ground in Ward 6, Richtersveld reached about 40 °C on clear mornings. That is the ground (roofs, roads, soil), not the air. The 5th hottest of 9 summers since 2014. In summer the ground here reads −5.5 °C against its municipality’s average (since 2014).

Land surface temperature is how hot the ground itself is: roofs, roads, bare soil and leaves, as a satellite sees them from above. Landsat passes at about 10 in the morning and sees only through clear skies. It is not the air temperature a weather station gives: on a sunny day the ground is often 10 to 20 degrees hotter than the air, and hard, dark, dry surfaces heat up most while trees, grass and water stay cooler.

What it is not: not the afternoon peak, not the night, not the air you feel in the shade, and not a reading at any one house. A month with clouds rests on few clear looks.

Summer 2024/25

Every summer since 2003

Summer 2002 to 03: 38.4 °CSummer 2011 to 12: 36.7 °CSummer 2012 to 13: 38.5 °CSummer 2014 to 15: 41.8 °CSummer 2016 to 17: 37.7 °CSummer 2017 to 18: 39.0 °CSummer 2018 to 19: 38.0 °CSummer 2020 to 21: 37.9 °CSummer 2021 to 22: 41.0 °CSummer 2022 to 23: 40.0 °CSummer 2023 to 24: 40.3 °CSummer 2024 to 25: 39.7 °C20052010201520202025
Each summer (December to February, named by the year it ends) on clear mornings. Bars start at 34 °C, not zero. Darker: Landsat 8 and 9 (from 2014); lighter: Landsat 5 and 7. A gap is a summer seen too little.
Show the numbers
Land surface temperature each summer, 2003 to 2025: every figure
When or whatFigure
Summer 2002 to 0338.4 °C
Summer 2011 to 1236.7 °C
Summer 2012 to 1338.5 °C
Summer 2014 to 1541.8 °C
Summer 2016 to 1737.7 °C
Summer 2017 to 1839.0 °C
Summer 2018 to 1938.0 °C
Summer 2020 to 2137.9 °C
Summer 2021 to 2241.0 °C
Summer 2022 to 2340.0 °C
Summer 2023 to 2440.3 °C
Summer 2024 to 2539.7 °C

The shape of a year

January: 39.7 °CFebruary: 36.3 °CMarch: 40.3 °CApril: 31.7 °CMay: 25.7 °CJune: 22.1 °CJuly: 23.6 °CAugust: 24.0 °CSeptember: 29.3 °COctober: 38.5 °CNovember: 40.2 °CDecember: 39.9 °CJanFebMarAprMayJunJulAugSepOctNovDec
Each month’s average since 2014, clear mornings. Bars start at 20 °C.
Show the numbers
Land surface temperature by calendar month, since 2014: every figure
When or whatFigure
January39.7 °C
February36.3 °C
March40.3 °C
April31.7 °C
May25.7 °C
June22.1 °C
July23.6 °C
August24.0 °C
September29.3 °C
October38.5 °C
November40.2 °C
December39.9 °C

Month by month

MonthLand surface temperatureClear looks
October 202639.6 °C0.5
September 2026Seen too little0.0
August 202625.1 °C0.8
July 202626.2 °C0.4
June 202621.6 °C0.5
May 2026Seen too little0.0
April 2026Seen too little0.0
March 202637.3 °C0.6
February 2026Seen too little0.2
January 2026Seen too little0.1
December 202540.8 °C0.5
November 202539.3 °C0.3
October 202537.2 °C0.5
September 202525.3 °C0.3
August 2025Seen too little0.0
July 202520.3 °C0.6
June 2025Seen too little0.0
May 202529.6 °C0.6
April 202531.7 °C0.3
March 202539.6 °C0.3
February 2025Seen too little0.1
January 202541.2 °C1.3
December 202438.1 °C0.4
November 202437.6 °C0.8

“Clear looks” is how many times the average 240 m patch of the place was seen through clear sky that month. Under one, part of the place was not seen at all, so the figure leans on the part that was.

Richtersveld and its wards · Every municipality, ranked

Source

Measured from space by the American Landsat satellites: the ground, not the air.

How we worked this out

Landsat 5 to 2011, Landsat 7 to bridge the gaps, Landsat 8 and 9 from 2013: different satellites pass at slightly different times, so compare summers within the same years first.

What we changed: we kept only the clear land cells (no cloud, cloud shadow, snow or water, with a margin round each cloud), read them at 480 m, and averaged them over each 2026 ward each month; larger places are the sums of their wards.

Landsat imagery courtesy of the U.S. Geological Survey (Landsat Collection 2 surface temperature, through Digital Earth Africa’s copy).

Dataset: land surface temperature by ward, release of 13 November 2026.

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