Now I've seen a lot of speculation on weather effects, affecting chocobos. Rain destorying fair weather ones and so on. But I'm looking for some solid info that bad weather chocobos are better than fair.

From all of the testing I've done with a friend of mine, I don't see a real differance between the 2. Fair chocobos like Clear/Sunshine/Heatwaves, Foul like Clouds/Rain/Thunderstorms. All of my findings have nothing to do with speed boosts or who wins or who doesn't win, I only looked at speed coming out of the gate. Before you say "Well thats silly because ... " both of our chocobo's have headstart so we generally come out of the gate at the same time.

With all of this in mind, without using chocodash or any other skill we would race to the first chest in Sagoli. When the weather Was clear, which is the minor fair weather chocobo buff, I would pull in front, but beat him by only a small margin to the chest. When sunshine was out, I would beat him by almost a chocobo length and a half. If Heatwave was out, I'd just blaze away as I'd assume his stats would hit rock bottom it seemed. He would burn through more stamina and it seemed like his bird ran sluggish. Which could be the same for me. Whenever it was cloudy, we'd be fairly even to the chest, but he would usually be in the lead. When it rained, I'd really feel the pain, and my speed and stamina would hurt pretty bad if it rained for a prolonged period of time.

so for the skeptics saying foul weather is better? Hard to say to me. I feel like it depends on the track you play on for the most part. If you have a fair weather, stay on Sagoli or Costa. If you have a foul, stay to Tranquil or costa, Costa being in the middle I think. RNG will be RNG, but honestly its just chocobo kart, try to have fun.

P.S: If anybody has any actual information to back up what I said here feel free to post it, because this is just from what I see, and notice while trying out different things. Thanks