Wadder is the Shetland dialect word for weather. This app puts wind first — because in Shetland, that's always the first question.
Forecasts cover 9 carefully chosen locations across Shetland, reflecting real microclimatic differences — including the classic east-coast haar vs west-side sunshine split that no national forecast bothers to distinguish.
Specialist displays for Sumburgh Airport visibility, North Isles ferry conditions at Sellaness, and launch conditions at Saxavord Space Hub.
Data source
Weather data from Open-Meteo — free, open-source, ECMWF-backed. Forecasts updated hourly. Data is cached locally for offline use.
Beaufort scale
| B0–2 | Calm to light breeze |
| B3–4 | Gentle to moderate — good working wind |
| B5–6 | Fresh to strong breeze — take care |
| B7 | Near gale — exposed areas risky |
| B8–9 | Gale to severe gale — ferries likely affected |
| B10+ | Storm — significant disruption |