Unmapped Dataworks

Free tools · Measured from space

Heat in Ward 27, Mnquma

Summer 2025/26: the ground in Ward 27, Mnquma reached about 35 °C on clear mornings. That is the ground (roofs, roads, soil), not the air. The third hottest summer since 2014. In summer the ground here reads −1.3 °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: 28.3 °CSummer 1994 to 95: 33.0 °CSummer 2001 to 02: 33.1 °CSummer 2002 to 03: 33.3 °CSummer 2006 to 07: 31.1 °CSummer 2011 to 12: 33.0 °CSummer 2012 to 13: 30.0 °CSummer 2013 to 14: 32.1 °CSummer 2014 to 15: 35.2 °CSummer 2016 to 17: 31.6 °CSummer 2017 to 18: 32.1 °CSummer 2018 to 19: 34.8 °CSummer 2019 to 20: 30.5 °CSummer 2021 to 22: 32.2 °CSummer 2022 to 23: 32.6 °CSummer 2023 to 24: 32.4 °CSummer 2024 to 25: 32.8 °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 8728.3 °C
Summer 1994 to 9533.0 °C
Summer 2001 to 0233.1 °C
Summer 2002 to 0333.3 °C
Summer 2006 to 0731.1 °C
Summer 2011 to 1233.0 °C
Summer 2012 to 1330.0 °C
Summer 2013 to 1432.1 °C
Summer 2014 to 1535.2 °C
Summer 2016 to 1731.6 °C
Summer 2017 to 1832.1 °C
Summer 2018 to 1934.8 °C
Summer 2019 to 2030.5 °C
Summer 2021 to 2232.2 °C
Summer 2022 to 2332.6 °C
Summer 2023 to 2432.4 °C
Summer 2024 to 2532.8 °C
Summer 2025 to 2634.8 °C

The shape of a year

January: 33.8 °CFebruary: 33.8 °CMarch: 28.5 °CApril: 26.0 °CMay: 21.8 °CJune: 19.5 °CJuly: 19.9 °CAugust: 23.1 °CSeptember: 26.3 °COctober: 28.4 °CNovember: 31.4 °CDecember: 31.8 °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
January33.8 °C
February33.8 °C
March28.5 °C
April26.0 °C
May21.8 °C
June19.5 °C
July19.9 °C
August23.1 °C
September26.3 °C
October28.4 °C
November31.4 °C
December31.8 °C

Month by month

MonthLand surface temperatureClear looks
October 202626.1 °C3.4
September 202624.7 °C2.5
August 202621.6 °C4.2
July 202617.6 °C3.6
June 202616.3 °C1.7
May 202624.8 °C6.7
April 202626.5 °C2.0
March 202627.7 °C1.7
February 202634.0 °C2.0
January 202637.3 °C3.1
December 202532.9 °C2.0
November 2025Seen too little0.0
October 202530.4 °C4.9
September 202525.8 °C2.4
August 202522.7 °C3.7
July 202520.4 °C5.1
June 202519.6 °C3.5
May 202521.3 °C6.1
April 202525.9 °C1.8
March 202525.2 °C3.7
February 202534.8 °C1.8
January 202531.9 °C1.8
December 202431.7 °C2.4
November 2024Seen too little0.0

“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.

Mnquma 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