11-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Rain showers
19°
Feels like 19°
Wind↑ N 11 km/h
Humidity 59 %
💧 0.2 mm
Evening
Clear sky
24°
Feels like 25°
Wind↑ NW 6 km/h
Gusts14 km/h
Humidity 42 %
12-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Partly cloudy
23°
Feels like 24°
Wind↑ NNW 11 km/h
Gusts23 km/h
Humidity 48 %
Evening
Clear sky
27°
Feels like 28°
Wind↑ NW 9 km/h
Gusts25 km/h
Humidity 33 %
13-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Clear sky
26°
Feels like 26°
Wind↑ NNW 9 km/h
Humidity 34 %
Evening
Clear sky
29°
Feels like 29°
Wind↑ SSW 6 km/h
Gusts12 km/h
Humidity 18 %
14-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Clear sky
26°
Feels like 26°
Wind↑ N 6 km/h
Humidity 26 %
Thembisa forecast in charts · next 7 days
The week ahead: highs and lows
▲ This week runs +3.5° warmer than usual
Highs Lows Usual for the season (1991–2020 average)
Hourly detail
Temperature (°C) Rain (mm) Wind (km/h)
Thembisa climate: what a normal year looks like
Day and night differ most in June: 19 °C in the afternoon against 5 °C before dawn, a 14 °C swing.
From June to August, rain is scarce: under 10 mm a month on average.
The hottest stretch is January, when afternoons average 27 °C; the coldest is July, when nights average 4 °C.
A normal year brings roughly 680 mm of rain — less than 76% of the towns of 20,000+ people we compared it with.
Forecast highs for the coming week average 30 °C, 4 °C warmer than a normal October (26 °C).
30-year averages (1991–2020)
Month
Typical high
Typical low
Rainfall
Jan
27 °C
17 °C
115 mm
Feb
26 °C
16 °C
103 mm
Mar
25 °C
15 °C
85 mm
Apr
23 °C
12 °C
40 mm
May
22 °C
8 °C
16 mm
Jun
19 °C
5 °C
7 mm
Jul
18 °C
4 °C
3 mm
Aug
22 °C
8 °C
9 mm
Sep
25 °C
12 °C
21 mm
Oct
26 °C
14 °C
69 mm
Nov
26 °C
15 °C
93 mm
Dec
26 °C
16 °C
123 mm
Whole year
24 °C
12 °C
680 mm
Source: our own processing of the ERA5 reanalysis (Copernicus/ECMWF) for 26.00° S, 28.23° E, 1991–2020. ERA5 averages over a 0.25° grid (about 25 km): hills, a coastline or the heat of the city itself can shift local values by a degree or two.
Air you breathe in Thembisa: pollution and pollen
4/6
Poor
European Air Quality Index (EAQI), from Copernicus CAMS
PM2.532µg/m³
PM1032µg/m³
Copernicus CAMS model, updated several times a day.
Rain radar around Thembisa
Rain observed over the last two hours by official weather radars around Thembisa, followed by the radar forecast for the next hour where the weather service provides one.
--:--
Rain radarLast two hours, then forecast where available · drag the timeline
No open weather radar covers Thembisa yet: the map shows our hour-by-hour rain forecast (ICON, GFS).
Moon over Thembisa
Waning gibbous
87 % illuminated · 18.3 days
Rise 06:03 Set 16:39
Fri30/1079%
Sat31/1069%
Sun1/1159%
Mon2/1149%Last quarter
Tue3/1138%
Wed4/1128%
Thu5/1119%
Fri6/1112%
Sat7/116%
Sun8/112%
Mon9/110%
Tue10/111%New moon
Moonrise and moonset in local time (Africa/Johannesburg); phase and lit fraction from a synodic calculation.
Look up a past day in Thembisa
Curious about the weather in Thembisa on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.
Thembisa weather at a glance
This page gathers everything about the weather in Thembisa, Gauteng: conditions now, the forecast for each part of the day and the trend for the coming week. At the moment the sky is “clear sky”, it is 28 °C (feels like 29 °C) and the wind blows at 5 km/h.
Expected range today: 19 °C to 30 °C and a dry sky; keep an eye on thunderstorms. The forecast comes from the AtmoAtlas engine, which combines ECMWF-AIFS, NOAA GFS and DWD ICON, adjusts cloud cover with METAR reports and uses convective energy (CAPE) to flag storms.
Use the Thembisa forecast in your own website or app: one JSON call returns weather, air quality, tides and sun and moon times. The free key needs no card.
