Fishermen all know that air temperature and water temperature affect the activities of fish. Simply knowing this is not enough. The changing trends of air and water temperatures have a significant impact on fish activities and are crucial to the number of fish caught. Changes in air and water temperatures are reflected in the monthly and daily average air temperature differences and water temperature differences, day and night air temperature differences, water layer temperature differences, etc.

1. The impact of nighttime temperature difference on fishing

The nighttime temperature difference is closely related to fishing. In late autumn, winter and early spring, when the night temperature difference is greater than 5 degrees Celsius, it is difficult to fish and fishing is likely to be a waste. When I go to ponds or rivers, I often see that the murky water on the shore has become clear, and it is even clear to the bottom. This is because the temperature drops a lot at night, which is particularly cold. Fish hide in deep water and remain motionless and will not swim to the shore, so the water on the shore is particularly clear.

The fish still felt cold on the second day and were too lazy to move or speak. After a day of fishing, there is often no movement of the float. On the contrary, the temperature difference at night is less than 2 degrees Celsius, and the temperature drops very little at night. The fish do not feel particularly cold, they still swim around at night, and they feed normally the next day. Fishing in such weather will be fruitful.

Although nighttime temperature difference is not the only determining factor, it does play an important role. It has been verified many times that it is not suitable to fish when the temperature difference is greater than 5 degrees. Fishing is not just a blank slate, but it is also difficult to catch a few fish. When the temperature difference at night is less than 2 degrees, it is not necessarily a good harvest because there are many influencing factors. But you can go fishing and get more or less harvest.

2. The impact of the temperature difference between day and night on fishing

The impact of the large and small temperature difference between day and night on fishing. The highest 24-hour temperature is around 2-3 pm, and the lowest temperature is around 5-6 pm before dawn. The greater the difference between the highest and lowest temperatures within 24 hours, the harder it is to fish. The main reason for the large temperature difference is sunny days and strong sun. The red sun is shining brightly, which causes the surface temperature of the water to rise rapidly, causing the temperature difference between the surface and the bottom of the water to widen, affecting the foraging activities of fish.

In winter, it is easy to catch fish on cloudy days with no cold wind or cloudy days with only bright sunshine (slight sunshine) because the temperature difference between day and night is small. On the contrary, the sun is shining so brightly that people take off their clothes, and the temperature difference between day and night is large, making it difficult for fish to bite the hook. In summary, if the temperature difference at night is large and the temperature difference between day and night is also large, it is almost impossible to catch fish.

Time has entered mid-autumn, that is, the period from "White Dew" to "Autumnal Equinox". As the temperature gradually drops, the appetite of fish begins to increase, and the food intake increases significantly, showing obvious omnivorous characteristics (carnivorous fish Except), it is suitable for both meat and vegetables. This provides us with convenience in using bait. We can catch fish with both meat and fish baits and plain baits. In particular, omnivorous fish such as crucian carp, carp, bream, grass carp (how to catch grass carp), etc., all show the characteristic of not rejecting both meat and vegetables.