I bought a Casio mountaineering watch, but I don’t know how to judge weather conditions from changes in air pressure.

This mountaineering watch has an LCD display, which is easy to judge. You can see the air pressure value, pressure trend chart and temperature on the screen by pressing the "BARO" key. If the curve in the barometric pressure trend chart rises, it means the weather has gotten better. If the barometric pressure curve has dropped, it means the weather has changed. broken. And your watch has a very good function, which is the storm warning function. It will remind you if the air pressure rises and falls too much, or if the weather changes suddenly.

In this way, you can play outdoors without being disappointed by unexpected weather conditions