Thermograph

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

Weather in Welkom in September

In an average September, Welkom sees a daily high around 25°C and a low around 9°C, based on 1980–2026 of local climate records.

Average high25°C
Typical high range19°C to 30°C
Average low9°C
Typical low range5°C to 13°C
Average daily precipitation0 mm

September records

The most extreme September on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total September accumulation.

High

Highest 35°C 1997-09-29
Lowest 8°C 2024-09-21

Low

Highest 19°C 1992-09-19
Lowest -1°C 2013-09-02

Feels-like

Highest 35°C 1997-09-28
Lowest -6°C 1981-09-01

Humidity

Highest 12.1 g/m³ 2025-09-28
Lowest 2.0 g/m³ 2009-09-18

Wind

Highest 45 km/h 2004-09-18
Lowest 7 km/h 1990-09-03

Gust

Highest 86 km/h 2004-09-18
Lowest 17 km/h 2002-09-01

Precip

Wettest 135 mm 1987
Driest 0 mm 2010

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