Thermograph

How unusual is the weather? Graded against ~45 years of local climate history.

Germiston, Gauteng, South Africa weather records

Record high and low temperatures for Germiston, Gauteng, South Africa, by month, by season, and all-time, with the dates they occurred, across 1981–2026 of daily climate history. Its hottest day on record reached 39°C on 2016-01-07; its coldest fell to -5°C on 2000-07-21.

Records by month

The warmest (▲) and coldest (▼) both the daytime high and the overnight low have ever been in each calendar month, so each column shows its record high and its record low. Tap a month for its full averages and typical range.

MonthDaytime highOvernight low
January
39°C2016-01-07
17°C1991-01-09
20°C2025-01-31
7°C2017-01-18
February
36°C1984-02-15
18°C1996-02-15
21°C2025-02-01
9°C2007-02-13
March
35°C1999-03-01
14°C2008-03-17
19°C1984-03-03
6°C1986-03-25
April
31°C2003-04-07
12°C2013-04-20
17°C1987-04-05
1°C1982-04-19
May
29°C2012-05-05
10°C2017-05-13
14°C1983-05-01
-4°C2007-05-23
June
26°C1998-06-25
7°C1994-06-30
11°C2005-06-04
-5°C1994-06-30
July
26°C2005-07-25
7°C2023-07-10
10°C2006-07-26
-5°C2000-07-21
August
30°C2015-08-29
7°C2012-08-07
13°C2015-08-29
-4°C2003-08-21
September
34°C1997-09-29
12°C1999-09-11
16°C1997-09-28
-2°C1981-09-03
October
37°C2011-10-24
13°C2023-10-31
19°C2016-10-30
2°C2023-10-31
November
37°C2015-11-11
13°C2009-11-20
20°C2015-11-12
4°C2023-11-01
December
38°C2024-12-13
16°C2019-12-05
20°C2020-12-28
4°C1998-12-04

Records by season

The warmest (▲) and coldest (▼) both the daytime high and the overnight low have reached in each meteorological season (Southern Hemisphere, each a three-month span).

SeasonDaytime highOvernight low
Summer (Dec–Feb)
39°C2016-01-07
16°C2019-12-05
21°C2025-02-01
4°C1998-12-04
Autumn (Mar–May)
35°C1999-03-01
10°C2017-05-13
19°C1984-03-03
-4°C2007-05-23
Winter (Jun–Aug)
30°C2015-08-29
7°C2012-08-07
13°C2015-08-29
-5°C2000-07-21
Spring (Sep–Nov)
37°C2015-11-11
12°C1999-09-11
20°C2015-11-12
-2°C1981-09-03

All-time records

The most extreme value Germiston has recorded for each metric across its entire history.

High

Highest 39°C 2016-01-07
Lowest 7°C 2012-08-07

Low

Highest 21°C 2025-02-01
Lowest -5°C 2000-07-21

Feels-like

Highest 44°C 1984-02-15
Lowest -13°C 1994-06-30

Humidity

Highest 16.9 g/m³ 2019-01-15
Lowest 1.5 g/m³ 1993-09-19

Wind

Highest 57 km/h 2004-09-25
Lowest 5 km/h 2004-02-27

Precip

Wettest 62 mm 2019-01-01
Driest 126-day dry spell 2010-05-31

For rainfall, the “driest” figure is the longest run of consecutive days without measurable rain, dated to when that dry spell began.

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