Below what air pressure is not suitable for fishing, below what temperature is not suitable for fishing.

Air pressure below 990 hectopascals is not suitable for fishing. Because the air pressure will affect the oxygen content in the water, and then affect the activity and appetite of fish, it is necessary to know the air pressure clearly before fishing and choose the most suitable time for fishing. When the air pressure is too low, below 990 hectopascals, the oxygen in the water is insufficient, which is not conducive to fishing. Fishing is not recommended. Of course, if you must fish, you also need to pay attention to the depth. At this time, the fish will go to the shallow layer to breathe, and shallow fishing can be adopted. First, the air pressure is not suitable for fishing. Because air pressure is an important factor affecting fish activities, it is necessary to know the air pressure the day before fishing and choose the most suitable time according to the air pressure. From the important aspect of air pressure, if it is too shallow, the fish in the water will become very inactive. This is because oxygen in water is closely related to air pressure. When the air pressure decreases, the dissolved oxygen content in water will also decrease. In this case, the fish is not active and it is not easy to catch.

So when the air pressure is particularly low, you need to avoid it. Judging from the specific values, it is not suitable for fishing when the air pressure is lower than 990 hectopascals. Fish belonging to China people are generally not very active at this time. Fishing is easier to succeed only if the air pressure is slightly higher. Of course, if you must fish when the air pressure is low, you need to pay attention to many factors, such as depth is a very important factor. When the air pressure is low and there is little oxygen in the water, the fish in the water generally choose to move in the shallow layer, so if you fish at this time, it must be in the shallow position.

Second, the temperature is much lower than that which is not suitable for fishing. As mentioned above, if the air pressure is very low, it is not suitable for fishing. It is better to have a hook when the air pressure is relatively high. Moreover, so is the temperature. If the temperature is very low, the fish in the water will become very inactive and cannot fish. In general, it is necessary to fish when the temperature is higher than 15℃, and the effect is good. If it is below 15℃, or even below 10℃, it is difficult to catch fish in the waters.

So in winter, fishing is more limited. Generally speaking, noon is more suitable for fishing, because the temperature at noon is the most suitable. But if it is in the morning or at night, it is not good to fish and needs to be avoided. Of course, the higher the temperature, the better. It is not recommended to fish when the temperature is higher than 30℃. In other words, when fishing in midsummer, you need to pay special attention to the choice of time.