King Shaka International Airport turbulence forecast
Durban, South Africa
DUR (Durban, South Africa) sits at 29.61°S, 31.12°E, 295 ft elevation — with the Drakensberg nearby.
About DUR
Major airport serving Durban, South Africa.
- Climate
- Subtropical inland — hot summers, seasonal rains
- Nearby terrain
- Drakensberg
What to expect on departures
Computed from DUR's geography and climate
The jet stream meanders across this latitude seasonally — DUR sees its strongest CAT exposure in June–August, when the polar jet pushes equatorward and routes intersect it more often. December-onwards departures climb into cleaner upper-level flow. The Drakensberg sit upwind of DUR on prevailing flow days, generating mountain-wave turbulence that can extend several hundred kilometres downwind at cruise level. The lee-wave risk is highest when June–August winds at FL300 cross the Drakensberg at near-perpendicular angles. Warm-season convection (December–February) drives the dominant turbulence pattern from DUR — afternoon thunderstorm cells are routed around but their wake turbulence and gust fronts can still affect arrivals and departures.
Climbout notes
Standard Instrument Departures (SIDs) often route around terrain; on strong-wind days, low-level turbulence in the lee of the hills is common in the first few thousand feet.
Seasonal pattern
Southern Hemisphere winter (June–August) is when the subtropical jet strengthens, and that's when long-haul CAT is most likely. Southern summer (December–February) is the main convective window. Mountain-wave activity near the Drakensberg peaks in the cold season when upper-level winds blow hardest across the range.
- Peak turbulence
- June–August (Southern Hemisphere winter jet)
- Typically calmest
- November–February
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DUR turbulence FAQ
Is turbulence common on flights from DUR?
King Shaka International Airport is best described as a mountain-wave sensitive airport. The jet stream meanders across this latitude seasonally — DUR sees its strongest CAT exposure in June–August, when the polar jet pushes equatorward and routes intersect it more often.
When is turbulence worst for Durban flights?
Southern Hemisphere winter (June–August) is when the subtropical jet strengthens, and that's when long-haul CAT is most likely. Peak turbulence window: June–August (Southern Hemisphere winter jet). Typically calmest: November–February.
Does the terrain around Durban affect turbulence?
Yes — the Drakensberg lie close enough to generate mountain-wave turbulence on days with strong upper-level winds. These waves can propagate hundreds of kilometres downwind, so they sometimes affect cruise even after you've left the immediate area.
How accurate are Turbcast forecasts?
We combine live NOAA Aviation Weather Center data (PIREPs, SIGMETs, AIRMETs) with physics-based Ellrod and Richardson-number calculations derived from Open-Meteo pressure-level wind and temperature data. If a source is unavailable for a waypoint we show an em dash rather than invent a number.
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