Unmapped Dataworks

Free tools · Measured from space

Heat in Ward 43, Polokwane

Summer 2025/26: the ground in Ward 43, Polokwane reached about 34 °C on clear mornings. That is the ground (roofs, roads, soil), not the air. The 11th hottest of 12 summers 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 1992

Summer 1991 to 92: 34.3 °CSummer 1994 to 95: 35.2 °CSummer 1997 to 98: 41.0 °CSummer 2000 to 01: 37.5 °CSummer 2001 to 02: 36.9 °CSummer 2002 to 03: 38.2 °CSummer 2013 to 14: 37.0 °CSummer 2014 to 15: 39.1 °CSummer 2015 to 16: 43.3 °CSummer 2016 to 17: 37.2 °CSummer 2017 to 18: 37.6 °CSummer 2018 to 19: 37.1 °CSummer 2019 to 20: 35.2 °CSummer 2021 to 22: 33.1 °CSummer 2022 to 23: 33.8 °CSummer 2023 to 24: 36.6 °CSummer 2024 to 25: 39.6 °CSummer 2025 to 26: 33.7 °C19952000200520102015202020252026
Each summer (December to February, named by the year it ends) on clear mornings. Bars start at 31 °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, 1992 to 2026: every figure
When or whatFigure
Summer 1991 to 9234.3 °C
Summer 1994 to 9535.2 °C
Summer 1997 to 9841.0 °C
Summer 2000 to 0137.5 °C
Summer 2001 to 0236.9 °C
Summer 2002 to 0338.2 °C
Summer 2013 to 1437.0 °C
Summer 2014 to 1539.1 °C
Summer 2015 to 1643.3 °C
Summer 2016 to 1737.2 °C
Summer 2017 to 1837.6 °C
Summer 2018 to 1937.1 °C
Summer 2019 to 2035.2 °C
Summer 2021 to 2233.1 °C
Summer 2022 to 2333.8 °C
Summer 2023 to 2436.6 °C
Summer 2024 to 2539.6 °C
Summer 2025 to 2633.7 °C

The shape of a year

January: 35.5 °CFebruary: 36.0 °CMarch: 34.5 °CApril: 31.2 °CMay: 27.2 °CJune: 24.5 °CJuly: 24.8 °CAugust: 31.0 °CSeptember: 36.4 °COctober: 42.3 °CNovember: 42.4 °CDecember: 38.7 °CJanFebMarAprMayJunJulAugSepOctNovDec
Each month’s average since 2014, clear mornings. Bars start at 22 °C.
Show the numbers
Land surface temperature by calendar month, since 2014: every figure
When or whatFigure
January35.5 °C
February36.0 °C
March34.5 °C
April31.2 °C
May27.2 °C
June24.5 °C
July24.8 °C
August31.0 °C
September36.4 °C
October42.3 °C
November42.4 °C
December38.7 °C

Month by month

MonthLand surface temperatureClear looks
October 202643.9 °C3.8
September 202631.4 °C1.1
August 202628.0 °C6.6
July 202625.4 °C7.1
June 202623.8 °C3.1
May 202625.3 °C3.3
April 202634.0 °C0.4
March 2026Seen too little0.0
February 202633.2 °C2.9
January 202631.4 °C1.1
December 202536.5 °C0.5
November 202531.1 °C2.6
October 202539.9 °C3.2
September 202538.4 °C5.6
August 202527.8 °C7.4
July 202523.6 °C7.5
June 202523.3 °C3.8
May 202524.3 °C5.7
April 202525.4 °C2.8
March 2025Seen too little0.0
February 202536.3 °C0.9
January 202532.4 °C2.5
December 202450.1 °C2.6
November 202448.8 °C5.1

“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.

Polokwane 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