The annoying thing is having these wet/dry back to back and seeing the AI doing their standard optimal tyre times, if you choose Dry tyres thinking based on the information that it's going to be 2 Dry stages you could find yourself a good 20 seconds off the pace when you hit that wet stage, yet the AI won't pay that same penalty because they don't follow the tyre rules.
I just went from having a massive lead to having to do a wet stage on worn dry tyres, it feels like if the game is going to not tell you the weather conditions at Spain that you're better off just choosing Wet tyres and risking not having a wet stage, since you lose less time with wet tyres on dry stages than if you run a wet stage on dry tyres.
It'd all be fine if the AI suffered the same compromises, there is a bit of an artificial difficulty bump on tarmac because of this oversight.