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Consensus Weather Forecasting 6 Weathermen in one - Averaged.
6 independent models, averaged ยท Updated 14 October 2026
Overcast
20°
Overcast

Tomorrow's Weather Cape Town

Mixed agreement. The models are split. The shape of the day is clearer than the exact number.

Mixed spread 3.4°C (18° to 22°) low 13°C rain 0.0 mm

Mild with overcast.

58%model confidence
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Where the models agree, and where they do not

ICONGerman weather serviceECMWFEuropean centreGFSUS national weather serviceAROMEMeteo-FranceUKMOUK Met OfficeGEMCanadian model
13°18°23°28°Thu15 OctFri16 OctSat17 OctSun18 OctMon19 OctTue20 OctWed21 OctThu22 OctFri23 Oct

Each coloured line is one independent forecast model. The white line is their average, weighted so that the models which have actually been accurate here count for more and with each model's excess bias already removed, which is why it does not sit exactly in the middle of the band. The grey band is the disagreement between them: a narrow band means the forecast is trustworthy, a wide one means the shape will hold but the numbers will not. Average spread across the 9 days: 3.7°C.

-sunrise
-sunset
-sunshine
8UV index
18°feels like
0%rain chance
39gusts km/h
18wind km/h

9 day weather forecast for Cape Town

Thursday
15 October
Overcast
20°
Overcast · low 13°
Mixed · spread 3.4°C · 6 models
rain 0.0 mm
Mild with overcast.
Friday
16 October
Light rain
21°
Light rain · low 14°
Mixed · spread 3.8°C · 6 models
rain 0.2 mm
Mild with light rain.
Saturday
17 October
Rain
18°
Rain · low 13°
Mixed · spread 3.2°C · 6 models
rain 7.1 mm
Cool with rain; about 7 mm of rain is likely.
Sunday
18 October
Light rain
16°
Light rain · low 12°
Mixed · spread 2.8°C · 5 models
rain 3.8 mm
Cool with light rain; a little rain is possible.
Monday
19 October
Overcast
19°
Overcast · low 11°
Mixed · spread 3.1°C · 5 models
rain 0.0 mm
Cool with overcast.
Tuesday
20 October
Overcast
19°
Overcast · low 11°
Mixed · spread 3.9°C · 5 models
rain 0.4 mm
Cool with overcast; a little rain is possible.
Wednesday
21 October
Light rain
17°
Light rain · low 13°
Mixed · spread 3.0°C · 3 models
rain 10.7 mm
Cool with light rain; about 11 mm of rain is likely.
Thursday
22 October
Light rain
18°
Light rain · low 14°
Low · spread 5.5°C · 3 models
rain 7.4 mm
Cool with light rain; about 7 mm of rain is likely.
Friday
23 October
Overcast
24°
Overcast · low 13°
Mixed · spread 5.0°C · 3 models
rain 0.2 mm
Mild with overcast.

Which model is actually best here

ModelSourceMean errorErrorBias
UKMO UK Met Office 0.82°C -0.08°C
ICON German weather service 0.97°C -0.14°C
ECMWF European centre 0.97°C -0.54°C
AROME Meteo-France 0.99°C -0.79°C
GEM Canadian model 1.02°C +0.66°C
GFS US national weather service 1.13°C +0.58°C

Population 4,772,846 on the municipal figures. Station distance: 17 km. Scored against 174 days of real hourly observations at Cape Town International, comparing each model's forecast of the daily maximum with what the airport actually measured. The models are queried at the station's own coordinates for this comparison, not the city centre, so the score describes the same piece of ground the measurements came from. Mean error is the average size of the mistake; bias shows whether the model runs warm or cold. Best here is UKMO at 0.82°C. The headline average is weighted by these errors, so a model that has been wrong by three degrees here carries a fraction of the vote of one that has been wrong by half a degree. Rainfall is a plain mean, because one dry model should not be allowed to cancel a wet one. No model has run more than a degree off at this station over the scored period, so no bias correction is applied here. No model is far enough behind to be dropped at this station, so all six count towards the average.

Weather near Cape Town