Method
How this works
This is not a weather forecast. It's a tool that scores locations across Iceland based on your personal weather preferences, to help you decide where to camp.
The idea in one sentence: you tell the tool how much you care about wind, rain, and temperature; it averages the forecast at every weather station across your chosen days and hours, compares stations to each other, and paints the map green where conditions best match your preferences — red where they don't.
How the score is built
- Per station, the tool averages wind speed, rain rate and temperature over your selected date range and hour window.
- Each station gets a "badness" score for each factor, combining how bad it is absolutely (e.g. 15 m/s wind is bad regardless of anything else) with how it compares to other stations in Iceland right now.
- Your W/R/T sliders decide how much each factor contributes to the final score.
- The heatmap interpolates scores between stations so you see a continuous picture of the country.
Important limitations
- Averages hide spikes. If a single 3-hour window has 10 mm of rain and the rest of your chosen days are dry, the average looks "moderate" — but you'd still get drenched that afternoon. Narrow the date or hour range to check.
- Forecasts get less accurate further out. Scores for day 7 are much less trustworthy than day 1. The model also switches from 3-hour to 6-hour steps for distant days, so the detail drops.
- Weather stations are sparse in the highlands. The heatmap colour in remote areas is interpolated from the nearest stations, which might be 50–120 km away. Treat those colours as a rough guide only.
- Local effects aren't captured. Valleys, coastlines and lee sides can have very different weather than the nearest station on the map.
- The score depends entirely on your preferences. Sliding wind to zero means wind stops mattering — the map will look very different. There's no "objectively best" location.
For anything that matters (driving, hiking, boating, any high-consequence plan), always check the official forecast at vedur.is.