Umbrella for the boat.
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Nothing like a hot convective upstream wind to row against all afternoon to dehydrate the sh*t out of you.
Dunking the dorky hat helps a lot too. That’s one thing where the straw hat is at a disadvantage vs a fabric hat.
Ice makes everything better.
Boy is this good timing! As I write this, I'm in the middle of a 2-day tarpon fishing bonanza in Islamorada. In two words, it's frigging hot. High temps in the mid-upper 80s, but the heat index is right near 100, and it doesn't get below 80 at night. (No, I haven't caught any tarpon yet, despite very intentional follows from three absolute giants... leave me alone!)
Anyway, re-apply the sunscreen to exposed skin frequently, and drink more water than you think you need to. Worked to keep me alive today, but dammit, it didn't catch me any tarpon. Tomorrow's another day, and I will be packing sunscreen and as much water as I can carry. I recommend you do the same. The buff is also a good idea. You may or may not slay them, but you will live to fish another day.
I'm heading out for a four day float in a couple of days and the forecast is for high 90s. Here's what I'm doing to deal with the heat and sun but I'm wondering what you might add?
Liquid IV powder in water bottle and drink way more than I think I'll need
Hooded long sleeve shirts/gloves
Long pants
Hat
Sunglasses
Sunscreen
Fish mornings and evenings and try to find shade mid day
Am I missing anything?
Block ice too. Lasts way longer than crushed. If you have the freezer room, freeze some gallons of water. Way cheaper, convenient to handle, and you then also have a back-up water source towards the end of the trip.Ice makes everything better.

Not troutsfloat means river could be western states for trout? All I can add is keep them in the water. If it's hot for you it is hotter for the fish. Watch those water temps!