SA Weather Service · Updated 23:28 SAST
Jan Cilliers South Africa · -33.93°S, 18.86°E
☁️
16°
Partly Cloudy Feels like 0°C
High: 15°
Low: 15°
Wind 5 km/h E (F1)
Humidity 84% Dry
Rain 1h 0.0 mm
Pressure 1017 hPa Steady
15°
19°
17°
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15°
13°
12°
9°
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Synoptic Summary
Current observations indicate partly cloudy conditions with air temperature 16°C, wind chill reduces apparent temperature to 0°C, surface wind E at 5 km/h (Beaufort 1), RH 84% with dew point 0°C (depression 15.8°C), MSL pressure 1017 hPa.
Solar Position
07:33
17:49
Solar Noon 12:41
10h 16m daylight
Declination 19.91°
Meteogram 48-hour trend analysis
Temperature & Rain
Wind & Gust
Cloud & Humidity
UV Index
Temperature (°C)
Precipitation (mm)
POP (%)
Hourly Forecast Next 48h · Scroll →
Current Observations
Wind
5 km/h
E · Gusts 0 km/h · F1
UV Index
—
— · Burn time ~N/A
Humidity
84%
Dew point 0°C · Dry
Pressure
1017 hPa
Steady · →
Feels Like
0°
Close to actual
Advanced Meteorology Expert analysis
Atmospheric State
Air Density (ρ) 1.2193 kg/m³
Sat. Vapor Press. (es) 18 hPa
Act. Vapor Press. (ea) 15 hPa
Mixing Ratio (ω) 9.32 g/kg
Dew Point Depression 15.8 °C
Pressure Tendency → Steady
Cloud Layers
Total OVC 83%
Stability & Wind
Atm. Stability ↕️ Conditionally Unstable
LCL Analysis LCL 1975m – conditional instability, triggering needed
Beaufort Scale F1 – Light air
Land Effects Smoke drifts
Sea State Ripple-like
Precip & Fire
Rain 1h 0.0 mm
Rain 6h 0.0 mm
POP 1h / 6h — / —
Thunder Prob. 0%
Fire Danger (FDI) 2.9 Low
FDI Guidance Low risk of fire ignition
Astronomy & Solar Sun & Moon data
☀️
10h 16m
Day Length
Solar noon: 12:41 Declination: 19.91°
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Waxing Crescent
Moon Phase
Illumination: 17.1% Age: 4 days