Unmapped Dataworks

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Heat in Victor Khanye

Summer 2025/26: the ground in Victor Khanye reached about 32 °C on clear mornings. That is the ground (roofs, roads, soil), not the air. The 9th hottest of 11 summers 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 2025/26

Every summer since 1987

Summer 1986 to 87: 32.0 °CSummer 1991 to 92: 30.6 °CSummer 1995 to 96: 27.3 °CSummer 1998 to 99: 31.0 °CSummer 2000 to 01: 32.2 °CSummer 2001 to 02: 32.3 °CSummer 2002 to 03: 30.2 °CSummer 2011 to 12: 33.6 °CSummer 2013 to 14: 33.3 °CSummer 2014 to 15: 35.2 °CSummer 2015 to 16: 36.4 °CSummer 2018 to 19: 38.6 °CSummer 2019 to 20: 34.6 °CSummer 2020 to 21: 30.5 °CSummer 2021 to 22: 30.8 °CSummer 2022 to 23: 32.2 °CSummer 2023 to 24: 35.8 °CSummer 2024 to 25: 35.7 °CSummer 2025 to 26: 32.2 °C199019952000200520102015202020252026
Each summer (December to February, named by the year it ends) on clear mornings. Bars start at 25 °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, 1987 to 2026: every figure
When or whatFigure
Summer 1986 to 8732.0 °C
Summer 1991 to 9230.6 °C
Summer 1995 to 9627.3 °C
Summer 1998 to 9931.0 °C
Summer 2000 to 0132.2 °C
Summer 2001 to 0232.3 °C
Summer 2002 to 0330.2 °C
Summer 2011 to 1233.6 °C
Summer 2013 to 1433.3 °C
Summer 2014 to 1535.2 °C
Summer 2015 to 1636.4 °C
Summer 2018 to 1938.6 °C
Summer 2019 to 2034.6 °C
Summer 2020 to 2130.5 °C
Summer 2021 to 2230.8 °C
Summer 2022 to 2332.2 °C
Summer 2023 to 2435.8 °C
Summer 2024 to 2535.7 °C
Summer 2025 to 2632.2 °C

The shape of a year

January: 34.3 °CFebruary: 31.7 °CMarch: 30.3 °CApril: 26.1 °CMay: 23.4 °CJune: 20.1 °CJuly: 20.6 °CAugust: 28.2 °CSeptember: 35.2 °COctober: 38.7 °CNovember: 39.5 °CDecember: 35.9 °CJanFebMarAprMayJunJulAugSepOctNovDec
Each month’s average since 2014, clear mornings. Bars start at 18 °C.
Show the numbers
Land surface temperature by calendar month, since 2014: every figure
When or whatFigure
January34.3 °C
February31.7 °C
March30.3 °C
April26.1 °C
May23.4 °C
June20.1 °C
July20.6 °C
August28.2 °C
September35.2 °C
October38.7 °C
November39.5 °C
December35.9 °C

Warmest and coolest wards

Each ward’s summers against Victor Khanye’s average, since 2014. Where the ground is mostly roofs, roads and bare earth it reads hotter; where there are trees, grass, gardens or water it reads cooler.

Every ward

Places in each ward: © OpenStreetMap contributors.

Month by month

MonthLand surface temperatureClear looks
October 202641.1 °C2.2
September 202632.6 °C1.3
August 202624.9 °C2.8
July 202621.0 °C2.8
June 202620.1 °C1.9
May 202620.2 °C1.9
April 2026Seen too little0.2
March 202630.6 °C0.8
February 202630.7 °C1.9
January 202632.5 °C1.3
December 202533.4 °C0.8
November 202531.6 °C1.3
October 202531.9 °C1.2
September 202534.4 °C2.3
August 202525.1 °C2.3
July 202519.7 °C2.6
June 202520.1 °C1.5
May 202520.9 °C2.9
April 202522.2 °C0.7
March 2025Seen too little0.2
February 2025Seen too little0.0
January 202535.6 °C0.9
December 202435.8 °C0.9
November 202442.9 °C1.7

“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.

Every municipality, ranked · Everything we hold for Victor Khanye

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.

Unmapped Dataworks