Wind carries warmth away, so a windy day feels colder than the number on the forecast. The app works out how it feels and dresses for that.
What the app suggests on a windy day, from the skin out, for a baby of 6–12 months:
23–25°C: short-sleeve bodysuit, pants and socks. Warm — light single layers. 22°C: long-sleeve bodysuit, pants and socks. Mild — add a light mid layer. 18–21°C: long-sleeve bodysuit, pants, socks and light sweater. Mild — add a light mid layer. 17°C: long-sleeve bodysuit, pants, socks, light sweater and warm hat. Mild — add a light mid layer. 16°C: long-sleeve bodysuit, pants, socks, warm sweater and warm hat. Cool — a mid layer plus a hat. 15°C: long-sleeve bodysuit, warm pants, socks, warm sweater and warm hat. Cool — a mid layer plus a hat. 13–14°C: long-sleeve bodysuit, warm pants, warm socks, warm sweater and warm hat. Cool — a mid layer plus a hat. 9–12°C: long-sleeve bodysuit, warm pants, warm socks, warm sweater, jacket and warm hat. Cold — full outer layer and a hat. 5–8°C: long-sleeve bodysuit, warm pants, warm socks, warm sweater, jacket, warm hat and mittens. Cold — full outer layer and a hat. 4°C: long-sleeve bodysuit, warm pants, warm socks, warm sweater, winter jacket, warm hat and mittens. Freezing — everything on, cover the hands. −10 – 3°C: long-sleeve bodysuit, warm pants, warm socks, warm sweater, winter jacket, warm hat and warm mittens. Freezing — everything on, cover the hands.
The change is biggest in the cool and cold range, where one more layer comes on a few degrees earlier than on a still day, as the table shows.
Indoors, or in a warm car, bus or train, take the hat and outer layers off.
0–3 months, 8°C: long-sleeve bodysuit, warm pants, warm socks, warm sweater, jacket, warm hat and mittens. 3–6 months, 8°C: long-sleeve bodysuit, warm pants, warm socks, warm sweater, jacket, warm hat and mittens. 6–12 months, 8°C: long-sleeve bodysuit, warm pants, warm socks, warm sweater, jacket, warm hat and mittens. 1–3 years, 8°C: long-sleeve bodysuit, warm pants, warm socks, warm sweater, jacket and warm hat.
Indoors, or in a warm car, bus or train, take the hat and outer layers off.
Check the neck — warm but not sweaty means just right.