SA Weather Service · Updated 01:26 SAST
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Nancy

South Africa · -33.98°S, 25.51°E
☁️
17°
CloudyFeels like 0°C
High: 21° Low: 17°
Wind28 km/hE (F4)
Humidity93%Dry
Rain 1h0.0 mm
Pressure1025 hPaSteady
Synoptic Summary
Current observations indicate cloudy conditions with air temperature 17°C, wind chill reduces apparent temperature to 0°C, surface wind E at 28 km/h (Beaufort 4), RH 93% with dew point 0°C (depression 16.9°C), MSL pressure 1025 hPa.
Hourly Forecast Next 24h · Scroll →
Now
☁️
17°
28
05:00
☁️
17°
29
06:00
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17°
30
07:00
17°
29
08:00
17°
28
09:00
18°
25
10:00
☀️
19°
26
11:00
20°
28
12:00
☁️
20°
32
13:00
🌦️
20°
0.4mm
33
14:00
🌤️
20°
35
15:00
☀️
21°
37
16:00
🌤️
20°
37
17:00
☁️
19°
37
18:00
☁️
19°
36
19:00
🌙
19°
36
20:00
🌙
19°
34
21:00
🌙
19°
33
22:00
🌙
19°
34
23:00
🌙
18°
35
00:00
🌙
18°
36
01:00
🌙
18°
34
02:00
☁️
18°
33
03:00
☁️
17°
32
7-Day Forecast Detailed outlook
Today
🌤️
21°17°
3.4
37 km/h
Thu 21 May
☁️
22°16°
4.4
36 km/h
Fri 22 May
☀️
19°16°
0.5
31 km/h
Sat 23 May
☀️
19°14°
22 km/h
Sun 24 May
☀️
21°12°
12 km/h
Mon 25 May
☀️
20°14°
13 km/h
Tue 26 May
☁️
23°13°
6 km/h
Current Observations
Wind
28 km/h
E · Gusts 0 km/h · F4
UV Index
— · Burn time ~N/A
Humidity
93%
Dew point 0°C · Dry
Cloud Cover
94%
Overcast
Pressure
1025 hPa
Steady · →
Feels Like
Close to actual
Fire Danger
7.5
Low
Visibility
50 km
Good
Advanced Meteorology Expert analysis
Atmospheric State
Air Density (ρ)1.2229 kg/m³
Sat. Vapor Press. (es)19.3 hPa
Act. Vapor Press. (ea)17.9 hPa
Mixing Ratio (ω)11.05 g/kg
Dew Point Depression16.9 °C
Pressure Tendency→ Steady
Cloud Layers
High
0%
Medium
0%
Low
0%
Fog
0%
Total OVC94%
Stability & Wind
Atm. Stability➡️ Neutral
LCL AnalysisLCL 2113m – stable boundary layer
Beaufort ScaleF4 – Moderate breeze
Land EffectsDust raised, small branches move
Sea StateModerate waves
Precip & Fire
Rain 1h0.0 mm
Rain 6h0.1 mm
POP 1h / 6h— / —
Thunder Prob.0%
Fire Danger (FDI)7.5 Low
FDI GuidanceLow risk of fire ignition
Astronomy & Solar Sun & Moon data
🌅
07:06 SAST
Sunrise
🌇
17:23 SAST
Sunset
☀️
10h 17m
Day Length
Solar noon: 12:14 SAST
Declination: 19.71°
🌒
Waxing Crescent
Moon Phase
Illumination: 10.4%
Age: 3.1 days