Local forecast

Gauteng, South Africa

Johannesburg

16°

Clear sky

Feels like 15°25°15°

Thursday, September 17 · 2:30 AM local time

Open-Meteo · weather model (not a station observation) · 2:30 AM

A clearer view of what's ahead.

Plan hour by hour

The next 48 hours

Open-Meteo · weather model (not a station observation) · 2:30 AM

Hourly forecast, local time. Missing values shown as a dash.
Time	Conditions	Temp.	Feels	Rain chance	Precip.	Wind
Thu 3:00 AM	Clear sky	16°	15°	0%	0 mm	7 km/h
Thu 4:00 AM	Clear sky	17°	15°	0%	0 mm	11 km/h
Thu 5:00 AM	Mainly clear	16°	14°	0%	0 mm	13 km/h
Thu 6:00 AM	Overcast	16°	13°	0%	0 mm	17 km/h
Thu 7:00 AM	Overcast	16°	14°	0%	0 mm	18 km/h
Thu 8:00 AM	Partly cloudy	18°	16°	0%	0 mm	15 km/h
Thu 9:00 AM	Clear sky	20°	17°	0%	0 mm	17 km/h
Thu 10:00 AM	Clear sky	22°	19°	0%	0 mm	21 km/h
Thu 11:00 AM	Clear sky	23°	21°	0%	0 mm	22 km/h
Thu 12:00 PM	Clear sky	24°	22°	3%	0 mm	23 km/h
Thu 1:00 PM	Partly cloudy	25°	22°	7%	0 mm	24 km/h
Thu 2:00 PM	Light drizzle	25°	22°	12%	0.1 mm	24 km/h
Thu 3:00 PM	Light drizzle	25°	20°	15%	0.1 mm	24 km/h
Thu 4:00 PM	Mainly clear	25°	20°	19%	0 mm	22 km/h
Thu 5:00 PM	Mainly clear	24°	20°	27%	0 mm	20 km/h
Thu 6:00 PM	Partly cloudy	22°	19°	43%	0 mm	14 km/h
Thu 7:00 PM	Light drizzle	18°	17°	63%	0.1 mm	11 km/h
Thu 8:00 PM	Light drizzle	16°	15°	78%	0.4 mm	12 km/h
Thu 9:00 PM	Dense drizzle	15°	15°	84%	1 mm	6 km/h
Thu 10:00 PM	Moderate drizzle	15°	15°	85%	0.8 mm	7 km/h
Thu 11:00 PM	Moderate drizzle	15°	13°	80%	0.7 mm	15 km/h
Fri 12:00 AM	Light drizzle	14°	13°	67%	0.1 mm	14 km/h
Fri 1:00 AM	Mainly clear	13°	12°	48%	0 mm	15 km/h
Fri 2:00 AM	Partly cloudy	13°	12°	33%	0 mm	14 km/h
Fri 3:00 AM	Mainly clear	13°	11°	25%	0 mm	16 km/h
Fri 4:00 AM	Overcast	13°	11°	20%	0 mm	16 km/h
Fri 5:00 AM	Partly cloudy	13°	11°	16%	0 mm	16 km/h
Fri 6:00 AM	Mainly clear	13°	11°	10%	0 mm	15 km/h
Fri 7:00 AM	Mainly clear	13°	12°	5%	0 mm	12 km/h
Fri 8:00 AM	Clear sky	14°	13°	2%	0 mm	13 km/h
Fri 9:00 AM	Partly cloudy	16°	14°	2%	0 mm	20 km/h
Fri 10:00 AM	Mainly clear	18°	15°	4%	0 mm	19 km/h
Fri 11:00 AM	Partly cloudy	20°	18°	8%	0 mm	20 km/h
Fri 12:00 PM	Partly cloudy	21°	19°	12%	0 mm	19 km/h
Fri 1:00 PM	Partly cloudy	21°	19°	18%	0 mm	18 km/h
Fri 2:00 PM	Dense drizzle	20°	18°	25%	1 mm	15 km/h
Fri 3:00 PM	Light drizzle	20°	17°	36%	0.4 mm	16 km/h
Fri 4:00 PM	Light drizzle	20°	17°	49%	0.2 mm	15 km/h
Fri 5:00 PM	Mainly clear	20°	18°	59%	0 mm	9 km/h
Fri 6:00 PM	Moderate drizzle	15°	13°	68%	0.5 mm	18 km/h
Fri 7:00 PM	Light drizzle	14°	11°	74%	0.4 mm	18 km/h
Fri 8:00 PM	Light drizzle	13°	10°	73%	0.1 mm	19 km/h
Fri 9:00 PM	Clear sky	12°	9°	59%	0 mm	20 km/h
Fri 10:00 PM	Clear sky	11°	8°	38%	0 mm	18 km/h
Fri 11:00 PM	Clear sky	11°	8°	20%	0 mm	16 km/h
Sat 12:00 AM	Clear sky	10°	7°	10%	0 mm	16 km/h
Sat 1:00 AM	Clear sky	10°	7°	4%	0 mm	16 km/h

Coming up

Hour by hour

48 hours

Precipitation in the forecast from Thu 2:00 PM.

3:00 AM16°0%

4:00 AM17°0%

5:00 AM16°0%

6:00 AM16°0%

7:00 AM16°0%

8:00 AM18°0%

9:00 AM20°0%

10:00 AM22°0%

Open-Meteo · weather model (not a station observation) · 2:30 AM

View accessible hourly data

Hourly forecast, local time. Missing values shown as a dash.
Time	Conditions	Temp.	Feels	Rain chance	Precip.	Wind
Thu 3:00 AM	Clear sky	16°	15°	0%	0 mm	7 km/h
Thu 4:00 AM	Clear sky	17°	15°	0%	0 mm	11 km/h
Thu 5:00 AM	Mainly clear	16°	14°	0%	0 mm	13 km/h
Thu 6:00 AM	Overcast	16°	13°	0%	0 mm	17 km/h
Thu 7:00 AM	Overcast	16°	14°	0%	0 mm	18 km/h
Thu 8:00 AM	Partly cloudy	18°	16°	0%	0 mm	15 km/h
Thu 9:00 AM	Clear sky	20°	17°	0%	0 mm	17 km/h
Thu 10:00 AM	Clear sky	22°	19°	0%	0 mm	21 km/h
Thu 11:00 AM	Clear sky	23°	21°	0%	0 mm	22 km/h
Thu 12:00 PM	Clear sky	24°	22°	3%	0 mm	23 km/h
Thu 1:00 PM	Partly cloudy	25°	22°	7%	0 mm	24 km/h
Thu 2:00 PM	Light drizzle	25°	22°	12%	0.1 mm	24 km/h
Thu 3:00 PM	Light drizzle	25°	20°	15%	0.1 mm	24 km/h
Thu 4:00 PM	Mainly clear	25°	20°	19%	0 mm	22 km/h
Thu 5:00 PM	Mainly clear	24°	20°	27%	0 mm	20 km/h
Thu 6:00 PM	Partly cloudy	22°	19°	43%	0 mm	14 km/h
Thu 7:00 PM	Light drizzle	18°	17°	63%	0.1 mm	11 km/h
Thu 8:00 PM	Light drizzle	16°	15°	78%	0.4 mm	12 km/h
Thu 9:00 PM	Dense drizzle	15°	15°	84%	1 mm	6 km/h
Thu 10:00 PM	Moderate drizzle	15°	15°	85%	0.8 mm	7 km/h
Thu 11:00 PM	Moderate drizzle	15°	13°	80%	0.7 mm	15 km/h
Fri 12:00 AM	Light drizzle	14°	13°	67%	0.1 mm	14 km/h
Fri 1:00 AM	Mainly clear	13°	12°	48%	0 mm	15 km/h
Fri 2:00 AM	Partly cloudy	13°	12°	33%	0 mm	14 km/h
Fri 3:00 AM	Mainly clear	13°	11°	25%	0 mm	16 km/h
Fri 4:00 AM	Overcast	13°	11°	20%	0 mm	16 km/h
Fri 5:00 AM	Partly cloudy	13°	11°	16%	0 mm	16 km/h
Fri 6:00 AM	Mainly clear	13°	11°	10%	0 mm	15 km/h
Fri 7:00 AM	Mainly clear	13°	12°	5%	0 mm	12 km/h
Fri 8:00 AM	Clear sky	14°	13°	2%	0 mm	13 km/h
Fri 9:00 AM	Partly cloudy	16°	14°	2%	0 mm	20 km/h
Fri 10:00 AM	Mainly clear	18°	15°	4%	0 mm	19 km/h
Fri 11:00 AM	Partly cloudy	20°	18°	8%	0 mm	20 km/h
Fri 12:00 PM	Partly cloudy	21°	19°	12%	0 mm	19 km/h
Fri 1:00 PM	Partly cloudy	21°	19°	18%	0 mm	18 km/h
Fri 2:00 PM	Dense drizzle	20°	18°	25%	1 mm	15 km/h
Fri 3:00 PM	Light drizzle	20°	17°	36%	0.4 mm	16 km/h
Fri 4:00 PM	Light drizzle	20°	17°	49%	0.2 mm	15 km/h
Fri 5:00 PM	Mainly clear	20°	18°	59%	0 mm	9 km/h
Fri 6:00 PM	Moderate drizzle	15°	13°	68%	0.5 mm	18 km/h
Fri 7:00 PM	Light drizzle	14°	11°	74%	0.4 mm	18 km/h
Fri 8:00 PM	Light drizzle	13°	10°	73%	0.1 mm	19 km/h
Fri 9:00 PM	Clear sky	12°	9°	59%	0 mm	20 km/h
Fri 10:00 PM	Clear sky	11°	8°	38%	0 mm	18 km/h
Fri 11:00 PM	Clear sky	11°	8°	20%	0 mm	16 km/h
Sat 12:00 AM	Clear sky	10°	7°	10%	0 mm	16 km/h
Sat 1:00 AM	Clear sky	10°	7°	4%	0 mm	16 km/h

The nearby picture

Weather radar

Explore the radar

US radar coverage only. Other regions are not supported.

Illustrative map · not live radar

Radar shows precipitation, not a forecast. Coverage and observations may be delayed.

Make room for the outdoors

10-day forecast

Details

10-day forecast. Daily precipitation probabilities, low and high temperatures.
Day	Conditions	Rain	Low	High
Today	Dense drizzle	85%	15°	25°
Fri	Dense drizzle	74%	11°	21°
Sat	Clear sky	10%	8°	21°
Sun	Overcast	4%	10°	22°
Mon	Overcast	4%	12°	23°
Tue	Mainly clear	18%	13°	23°
Wed	Moderate drizzle	27%	14°	24°
Thu	Moderate drizzle	55%	13°	22°
Fri	Light drizzle	49%	12°	21°
Sat	Slight rain showers	38%	12°	15°

Open-Meteo · weather model (not a station observation) · 2:30 AM

The weather, made simple

Your day,
at a glance.

Model temperature is 16°C: clear sky.
Highest available rain probability in the next 12 forecast hours: 7%.
Model sea-level pressure rises by 1 hPa across the next three hours.
Official alert status is not current; absence of warnings cannot be confirmed.

A rules-based summary of this forecast. Not AI-generated.

Open-Meteo · weather model (not a station observation) · 2:30 AM

A little time outside

Official alerts are unavailable or stale here. Outdoor recommendations are paused; the forecast is not a safety assessment.

Open-Meteo · weather model (not a station observation) · 2:30 AM

The details that matter

Beyond the temperature

Local conditions

Feels like

15°

Actual temperature 16°

What affects this?

Apparent temperature combines air temperature, humidity, wind and radiation.

Open-Meteo · weather model (not a station observation) · 2:30 AM

Precipitation

3.2 mm

85% daily probability

Next wet hour: Thu 2:00 PM · 0.1 mm

Open-Meteo · weather model (not a station observation) · 2:30 AM

Wind

6 km/h

Gusts 11 km/h

From 52°

Open-Meteo · weather model (not a station observation) · 2:30 AM

Humidity

62%

Dew point 9°

Dew point valid 2:00 AM

Open-Meteo · weather model (not a station observation) · 2:30 AM

Air quality

114US AQI

Unhealthy for sensitive groups

Particles & scale

US EPA AQI scale. PM2.5: 74 µg/m³. PM10: 75.9 µg/m³. European AQI: 72.

Open-Meteo / CAMS · US/EU AQI; species pollen available only in Europe · 2:00 AM

UV index

8daily max

High · use sun protection

Open-Meteo · weather model (not a station observation) · 2:30 AM

Pressure & visibility

1018.5hPa

Forecast trend: rising

34.3 km visibility

Visibility valid 2:00 AM

Open-Meteo · weather model (not a station observation) · 2:30 AM

Sun & daylight

6:03 AM6:01 PM

11h 59m of daylight

Open-Meteo · weather model (not a station observation) · 2:30 AM

Moon phase

First quarter

32.9% illuminated

Astronomical calculation, not an observation.

Calculated with SunCalc · 2:30 AM

Pollen

Not available here

Pollen coverage varies by region. No estimated scores are shown.

Open-Meteo / CAMS · US/EU AQI; species pollen available only in Europe · 2:00 AM

Official alerts

Outside US alert coverage

This does not mean there are no alerts. Check your local meteorological authority.

Coverage & sources

Unavailable · Coverage unavailable

Sources, freshness & how to read this forecast

Times are local to Johannesburg (Africa/Johannesburg). Forecasts and modeled environmental data are not on-site observations. A dash means a value is unavailable. Cached results are labeled; longer-range forecasts are less certain.

Forecast: Open-Meteo · weather model (not a station observation) · fresh · Fetched Sep 17, 2026, 2:44 AM

Air quality & pollen: Open-Meteo / CAMS · US/EU AQI; species pollen available only in Europe · fresh · Fetched Sep 17, 2026, 2:44 AM

Official alerts: Provider data is not supported for this region.

Read our methodology →

Johannesburg

The next 48 hours

Hour by hour

Weather radar

10-day forecast

Your day,at a glance.

A little time outside

Beyond the temperature

Feels like

Precipitation

Wind

Humidity

Air quality

UV index

Pressure & visibility

Sun & daylight

Moon phase

Pollen

Official alerts

Your day,
at a glance.