Take 1d6 psychic and regular damage when slightly wet and ad one more d6 every minute spent like that
Take 2d6 (psychic and regular) damage when fully wet (swimming) and cannot move or do anything until next short rest, if longer than 2 minutes is spent in water can only recover after next long rest

When too hot (near lava, desert at day, or just out in the open when the sun is shining) lower movement and climbing speed by one until you have removed 10 speed off both or cool down, once cooled you regain your speed, if not cooled in time you pass out for one minute exactly but then you wake up cooler, movement speed is lowered by five from your original and cannot lower again for 10 minutes

When in a cool environment (shade, cold day, snow, mountain top, caves, etc) your movement speed is raised by five (all movement and you can also swim in small periods of time now that you are cooled down, don’t ask questions I’m just try a add things that make this species actually better instead of worse) also you get one more dice when rolling for any physical attacks