The weather temperature is about 15 degrees. Will the fish lack oxygen if it rains again?

When the temperature is 15 degrees, you can fish. First of all, what kind of fish did you catch? Your temperature is 15 degrees, and the water temperature may not be 15 degrees. Without 15 degrees, it may be difficult to catch carp. I've tried many times. The temperature here is below 15 degrees, so carp don't eat it. Secondly, it depends on the air pressure. You said it would rain, which has nothing to do with fishing. As long as the air pressure is high, people can go fishing without feeling depressed, but pay attention to safety and physical factors when it rains.