Flying weather
Every weather service tells you the forecast. None of them tell you whether you can fly in it — that is a different question, and it has a different answer. Skydex reads wind, gusts, precipitation and cold against the limits that actually ground a drone, and says good, marginal or poor.
What the verdict means
No black box — these are the exact thresholds, the same ones the simulator uses in flight and every city page uses on the ground.
| Condition | Marginal from | Poor from | Why |
|---|---|---|---|
| Gusts | 25 km/h | 40 km/h | A gust is what flips a light airframe — weighted above sustained wind. |
| Sustained wind | 15 km/h | 30 km/h | Eats range and battery long before it becomes unflyable. |
| Precipitation | 0.1 mm/h | 0.5 mm/h | Drizzle is survivable; real rain is not, for most airframes. |
| Cold | — | −5°C | LiPo territory: voltage sags and the pack gives up mid-flight. |
The same rules run on daily climate normals to produce the “share of days good for flying” figure on every city page — so a month, a season and a moment are all scored the same way.
Flying conditions right now
- 🇯🇵 TokyoGood
- 🇺🇸 New YorkGood
- 🇲🇽 Mexico CityGood
- 🇮🇳 MumbaiGood
- 🇧🇷 São PauloMarginal — gusty
- 🇮🇳 DelhiGood
- 🇨🇳 ShanghaiGood
- 🇮🇳 KolkataGood
- 🇧🇩 DhakaGood
- 🇦🇷 Buenos AiresGood
- 🇺🇸 Los AngelesGood
- 🇵🇰 KarachiGood
Read at 2026-11-11 00:22 UTC. Each city page carries its own live reading and a 7-day outlook.
Where the flying year is kindest
Share of days without strong wind, real rain or hard frost, averaged across the year — major cities only.
- 🇪🇬 Cairo99% of days flyable
- 🇦🇪 Dubai97% of days flyable
- 🇵🇪 Lima96% of days flyable
- 🇸🇩 Khartoum96% of days flyable
- 🇸🇩 Omdurman96% of days flyable
- 🇸🇦 Riyadh95% of days flyable
- 🇪🇬 Alexandria95% of days flyable
- 🇾🇪 Sanaa95% of days flyable
- 🇮🇷 Isfahan95% of days flyable
- 🇮🇷 Shiraz95% of days flyable
- 🇸🇦 Medina95% of days flyable
- 🇵🇰 Karachi94% of days flyable
Where you see it
- In flight — the city you are over, its local time and its current conditions, live in the HUD. There is a day/night toggle next to it if you want the sun to follow the real time where you are flying.
- On every city page — current verdict, 7-day outlook, and a month-by-month table of temperature, wind, rain days and flyable days. Browse them from the globe.
Where the data comes from
Live conditions and the outlook come from a self-hosted Open-Meteo instance running the ECMWF IFS025 model — our own server, not a shared public endpoint. The month-by-month figures come from ERA5 reanalysis. Both are Copernicus data under CC BY 4.0.
The verdict on top of it is ours.