Indira Gandhi International Airport turbulence forecast
Delhi, India
DEL (Delhi, India) sits at 28.57°N, 77.10°E, 777 ft elevation — coastal with the Himalayas nearby.
About DEL
Major airport serving Delhi, India.
- Climate
- Subtropical coastal — mild winters, humid summers
- Nearby terrain
- Himalayas
- Geography
- Coastal — marine-influenced airmass
What to expect on departures
Computed from DEL's geography and climate
The jet stream meanders across this latitude seasonally — DEL sees its strongest CAT exposure in December–February, when the polar jet pushes equatorward and routes intersect it more often. June-onwards departures climb into cleaner upper-level flow. The Himalayas sit upwind of DEL 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 December–February winds at FL300 cross the Himalayas at near-perpendicular angles. Monsoon months pump moisture and instability into the local airmass — expect significantly more convective turbulence during the wet season at DEL, with much smoother cruise during dry-season operations. DEL's coastal position means departures often transit from the cool marine boundary layer into warmer continental air within minutes of takeoff — a brief but reliable bumpy transition on warm-season afternoons when the sea breeze is set up.
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
Winter (December–February) brings the strongest jet-stream activity — that's when long-haul departures most often log clear-air turbulence at cruise. Summer (June–August) is peak thunderstorm season — convective turbulence is the dominant warm-season risk. Mountain-wave activity near the Himalayas peaks in the cold season when upper-level winds blow hardest across the range.
- Peak turbulence
- Monsoon months (varies by hemisphere)
- Typically calmest
- Dry season
Departing from DEL?
Get a live turbulence forecast for any flight out of Indira Gandhi International Airport — departure airport already filled in. Free, no signup.
Popular routes from DEL
DEL turbulence FAQ
Is turbulence common on flights from DEL?
Indira Gandhi International Airport is best described as a mountain-wave sensitive airport. The jet stream meanders across this latitude seasonally — DEL sees its strongest CAT exposure in December–February, when the polar jet pushes equatorward and routes intersect it more often.
When is turbulence worst for Delhi flights?
Winter (December–February) brings the strongest jet-stream activity — that's when long-haul departures most often log clear-air turbulence at cruise. Peak turbulence window: Monsoon months (varies by hemisphere). Typically calmest: Dry season.
Does the terrain around Delhi affect turbulence?
Yes — the Himalayas 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.
Articles
More on Delhi turbulence
Background reading on the factors that shape your flight.
When Is Flight Turbulence Worst? A Month-by-Month Global Guide
Winter over the Atlantic, monsoon over Asia, summer over the US — turbulence has a calendar. Here's the month-by-month pattern for every major flight corridor, and the best months to book a smoother flight.
Read moreWill Turbulence Crash a Plane? What the Aviation Safety Data Actually Shows
Short answer: almost certainly not. Here's the full engineering, historical, and statistical picture of how modern aircraft handle turbulence — including what the Singapore Airlines SQ321 incident really tells us.
Read moreClear Air Turbulence (CAT): Why Planes Shake in Clear Skies
Understanding Clear Air Turbulence - what causes it, where it occurs, and why it's the hardest type of turbulence to predict. Essential reading for frequent flyers.
Read more