The outdoor temperature is 9 degrees. What's the temperature in Hanoi?

What is the outdoor temperature of 10 degrees?

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Outdoor temperature 10 degrees, water temperature is about 6 degrees.

The outdoor temperature of 10 degrees is usually around 6 or 7 degrees. Under the same conditions, the temperature of water is lower than that of air.

If the weather is about 3m 10℃, the water temperature is about 4℃. Generally speaking, fish will eat slowly below 10℃. If it is winter, the temperature under water is generally 3 or 4 degrees higher than that on land. Generally speaking, fish eat slowly when the temperature is below 10.

Understanding of fishing water temperature

Because the speed of water transferring cold and heat is slower than that of air, the surface temperature and bottom temperature of water are also different. The deeper the water, the greater the difference in water temperature. It is best to fish in the waters with small water temperature difference in summer. For example, the water surface is 20 degrees, and the bottom temperature is only 10 degrees. At this time, the fish will float, so it is difficult to catch fish at the bottom.

If the water temperature is 20 degrees and the water temperature is 30 degrees, then the water will lack oxygen. At this time, the fish will not eat, and it is difficult to catch fish. So fishing in winter and summer is just the opposite. In summer, it is best to choose a water area with a relatively small difference between the upper and lower water temperatures, and in winter, it is most suitable to choose a water area with a relatively large difference between the upper and lower water temperatures.