Harvested the rest of the oats today. The photo is taken by Jussi on the last field. Got two loads, neither of them full, but the area was larger than yesterday, so the yield is really as bad as thought.
A warmer day, it may have been up to +20°C, though I didn't have much to time watch the thermometer. The moisture was a little higher than yesterday in the first load, but lower in the second, so at least drying costs will be down.