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Weather in Johannesburg Today

Johannesburg Weather Forecast – Live 24-Hour Highveld Plateau Tracker

Stay updated with the most accurate tracking for the weather in Johannesburg today on WeatherTomorrow.pk. Whether you are navigating your morning commute along the M1 highway, planning corporate meetings in Sandton, or arranging a weekend visit to the Maboneng Precinct, our live portal tracks essential atmospheric shifts across South Africa’s primary economic engine.

Johannesburg’s high-altitude plateau geography (nearly 1,750 meters above sea level) creates dynamic microclimates marked by sharp temperature drops and sudden convective summer storm cells. Use our integrated interactive dashboard below to track real-time temperatures, exact feels-like indices, precipitation metrics, and localized weather warnings:

 

Johannesburg

Gauteng, South Africa
17°
Light rain shower
Light rain shower
Feels Like 13°
Humidity 67%
Wind 18 km/h
Wind Direction NNE (21°)
Pressure 1020 mb
Visibility 10 km
UV Index 0
Cloud Cover 100%

Hourly Forecast

12:00 AM
Light rain shower
14°
Light rain shower
💧 68% 🌧 35% 💨 22.3 km/h
1:00 AM
Patchy rain nearby
14°
Patchy rain nearby
💧 67% 🌧 22% 💨 18.7 km/h
2:00 AM
Light rain shower
14°
Light rain shower
💧 70% 🌧 34% 💨 19.8 km/h
3:00 AM
Light rain shower
13°
Light rain shower
💧 74% 🌧 36% 💨 19.8 km/h
4:00 AM
Light rain shower
13°
Light rain shower
💧 77% 🌧 38% 💨 16.2 km/h
5:00 AM
Light rain shower
13°
Light rain shower
💧 76% 🌧 45% 💨 15.5 km/h
6:00 AM
Light rain shower
12°
Light rain shower
💧 79% 🌧 63% 💨 15.8 km/h
7:00 AM
Light rain shower
13°
Light rain shower
💧 80% 🌧 40% 💨 16.9 km/h
8:00 AM
Light rain shower
14°
Light rain shower
💧 75% 🌧 48% 💨 17.3 km/h
9:00 AM
Light rain shower
15°
Light rain shower
💧 67% 🌧 44% 💨 19.8 km/h
10:00 AM
Overcast
17°
Overcast
💧 60% 🌧 15% 💨 22.3 km/h
11:00 AM
Light rain shower
15°
Light rain shower
💧 72% 🌧 55% 💨 20.5 km/h
12:00 PM
Thundery outbreaks in nearby
17°
Thundery outbreaks in nearby
💧 65% 🌧 17% 💨 21.2 km/h
1:00 PM
Thundery outbreaks in nearby
17°
Thundery outbreaks in nearby
💧 65% 🌧 17% 💨 20.9 km/h
2:00 PM
Thundery outbreaks in nearby
17°
Thundery outbreaks in nearby
💧 63% 🌧 16% 💨 21.6 km/h
3:00 PM
Thundery outbreaks in nearby
18°
Thundery outbreaks in nearby
💧 60% 🌧 10% 💨 21.6 km/h
4:00 PM
Thundery outbreaks in nearby
18°
Thundery outbreaks in nearby
💧 58% 🌧 14% 💨 21.2 km/h
5:00 PM
Light rain shower
18°
Light rain shower
💧 59% 🌧 47% 💨 20.5 km/h
6:00 PM
Light rain shower
17°
Light rain shower
💧 67% 🌧 66% 💨 17.6 km/h
7:00 PM
Light rain shower
16°
Light rain shower
💧 69% 🌧 54% 💨 20.5 km/h
8:00 PM
Light rain shower
15°
Light rain shower
💧 76% 🌧 68% 💨 19.8 km/h
9:00 PM
Light rain shower
14°
Light rain shower
💧 80% 🌧 42% 💨 20.5 km/h
10:00 PM
Patchy rain nearby
14°
Patchy rain nearby
💧 80% 🌧 33% 💨 19.8 km/h
11:00 PM
Light rain shower
14°
Light rain shower
💧 81% 🌧 47% 💨 19.1 km/h

📈 Weather Trends

Temperature

Chance of Rain

Wind Speed

Humidity

3-Day Forecast

Sunday
2026-09-06
Light rain shower
18° / 12°
🌧 82%
💨 22.3 km/h
💧 70%
☀ UV 5.2
Monday
2026-09-07
Patchy rain nearby
15° / 13°
🌧 78%
💨 21.2 km/h
💧 82%
☀ UV 3.9
Tuesday
2026-09-08
Overcast
21° / 11°
🌧 17%
💨 16.2 km/h
💧 60%
☀ UV 8.6

🌿 Air Quality

US EPA Index
1
Good
Air quality is satisfactory and poses little or no health risk.
Air Quality Level
1 Good Low risk ● Current
2 Moderate Acceptable
3 Sensitive Sensitive groups
4 Unhealthy Everyone
5 Very Unhealthy Increased risk
6 Hazardous Emergency
US EPA Index 1
UK DEFRA Index 2
PM2.5 13.8 µg/m³
PM10 14.1 µg/m³
CO 344 µg/m³
O₃ 91 µg/m³
NO₂ 12.9 µg/m³
SO₂ 16.4 µg/m³
AQI categories are based on the US EPA air quality index supplied by the weather provider.

Sun & Moon

🌅
Sunrise
06:14 AM
🌇
Sunset
05:57 PM
🌙
Moonrise
02:11 AM
🌘
Moonset
12:36 PM
🌕
Moon Phase
Waning Crescent
Illumination
32%

Johannesburg Weather Today – Live 24-Hour Urban Trends & Graphs

Before planning your outdoor business routines, daily commutes, or transit schedules across the city, checking the live weather in johannesburg today gives you a decisive advantage. Our platform features an intuitive, rolling 24-hour hourly forecast timeline. Because afternoon air masses can drop temperatures sharply or spark swift lightning storms unexpectedly, relying on generic daily averages can leave your schedule vulnerable.

  • Interactive Trend Charts: Deep-dive into active, visual graphs detailing shifting percentages for Chance of Rain, Wind Speed velocities, and dynamic Humidity levels over a rolling 24-hour period.
  • High-Altitude Thermal Profiles: Monitor precise ambient mercury readings alongside the actual calculated “feels-like” temperature index, which balances comfortably lower than the coast due to altitude tracking.
  • Astronomical Intervals: Access high-precision daily schedules tracking exact sunrise, sunset, moonrise, and moonset times.

Understanding Jo’burg’s Climate: Crisp Dry Winters & Convective Summer Storms

Johannesburg features a subtropical highland climate strongly modified by its altitude. Summers (December to February) are warm and pleasant, rarely breaching 30°C. However, intense midday solar radiation triggers rapid convective instability, generating famous afternoon lightning storms and sudden downpours that clear the air quickly.

Conversely, the winter season from June to August delivers exceptionally dry, sunny afternoons but crisp, freezing nights, where temperatures routinely drop near single digits, requiring heavy insulation layers.

Advanced Highveld Air Quality & Environmental Monitoring

WeatherTomorrow.pk integrates live air quality monitoring data directly inside our Johannesburg tracker. Due to regional wind patterns carrying dust and urban emissions trapping particulate matter within the plateau basin, checking environmental air factors is critical. Our panel tracks detailed pollutant metrics including fine particulate matter (PM2.5 and PM10), Nitrogen Dioxide (NO2), Sulfur Dioxide (SO2), Carbon Monoxide (CO), and Ozone (O3) concentrations, allowing residents to verify air cleanliness accurately in real time.

Frequently Asked Questions (FAQs)

Why does Johannesburg receive almost all its rain in the summer?

During the summer months, warm, moist air currents pull in from the Indian Ocean, heating up over the continental interior before hitting the high plateau and condensing into rapid afternoon thunderstorms.

Where can I check active thunderstorm warnings for Johannesburg?

Emergency notices regarding heavy downpours, severe lightning hazards, or sudden temperature drops will display instantly at the very top of this page for public safety.