Unmapped Dataworks

Free tools · Measured from space

Heat in Ward 24, Ingquza Hill

Summer 2025/26: the ground in Ward 24, Ingquza Hill reached about 35 °C on clear mornings. That is the ground (roofs, roads, soil), not the air. Only the summer of 2022/23 was hotter since 2014. In summer the ground here reads −0.7 °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 2025/26

Every summer since 1987

Summer 1986 to 87: 33.8 °CSummer 1990 to 91: 29.7 °CSummer 1994 to 95: 32.8 °CSummer 1996 to 97: 33.0 °CSummer 1998 to 99: 28.8 °CSummer 1999 to 00: 31.1 °CSummer 2000 to 01: 34.4 °CSummer 2001 to 02: 30.1 °CSummer 2007 to 08: 34.0 °CSummer 2012 to 13: 32.5 °CSummer 2017 to 18: 31.2 °CSummer 2018 to 19: 32.3 °CSummer 2019 to 20: 32.6 °CSummer 2020 to 21: 34.5 °CSummer 2021 to 22: 32.8 °CSummer 2022 to 23: 34.9 °CSummer 2023 to 24: 32.7 °CSummer 2024 to 25: 34.7 °CSummer 2025 to 26: 34.8 °C199019952000200520102015202020252026
Each summer (December to February, named by the year it ends) on clear mornings. Bars start at 26 °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 8733.8 °C
Summer 1990 to 9129.7 °C
Summer 1994 to 9532.8 °C
Summer 1996 to 9733.0 °C
Summer 1998 to 9928.8 °C
Summer 1999 to 0031.1 °C
Summer 2000 to 0134.4 °C
Summer 2001 to 0230.1 °C
Summer 2007 to 0834.0 °C
Summer 2012 to 1332.5 °C
Summer 2017 to 1831.2 °C
Summer 2018 to 1932.3 °C
Summer 2019 to 2032.6 °C
Summer 2020 to 2134.5 °C
Summer 2021 to 2232.8 °C
Summer 2022 to 2334.9 °C
Summer 2023 to 2432.7 °C
Summer 2024 to 2534.7 °C
Summer 2025 to 2634.8 °C

The shape of a year

January: 33.2 °CFebruary: 34.2 °CMarch: 30.3 °CApril: 25.1 °CMay: 22.7 °CJune: 19.1 °CJuly: 19.4 °CAugust: 23.1 °CSeptember: 27.0 °COctober: 32.4 °CNovember: 32.6 °CDecember: 34.5 °CJanFebMarAprMayJunJulAugSepOctNovDec
Each month’s average since 2014, clear mornings. Bars start at 17 °C.
Show the numbers
Land surface temperature by calendar month, since 2014: every figure
When or whatFigure
January33.2 °C
February34.2 °C
March30.3 °C
April25.1 °C
May22.7 °C
June19.1 °C
July19.4 °C
August23.1 °C
September27.0 °C
October32.4 °C
November32.6 °C
December34.5 °C

Month by month

MonthLand surface temperatureClear looks
October 202630.4 °C1.1
September 202625.1 °C1.3
August 202623.3 °C1.8
July 202620.4 °C2.4
June 202621.3 °C1.4
May 202625.5 °C1.5
April 202630.1 °C3.2
March 202632.1 °C1.1
February 202635.8 °C2.3
January 202636.7 °C1.7
December 202532.0 °C1.1
November 202532.7 °C0.7
October 202534.1 °C2.7
September 202530.0 °C1.1
August 202522.1 °C2.4
July 202520.8 °C1.7
June 202519.1 °C2.4
May 202521.8 °C2.9
April 202524.1 °C1.3
March 202529.3 °C3.7
February 2025Seen too little0.1
January 202532.4 °C1.0
December 202437.0 °C1.2
November 2024Seen too little0.2

“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.

Ingquza Hill 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.

Unmapped Dataworks