How many days does it take for the weather forecast to be accurate?

The weather forecast of 2 1 13 is the most accurate within 7 days.

Limited by the scientific and technological development level of 526 1, the weather forecast within 4 1027 days still holds 1653 to a certain extent, and the closer the time is, the greater the reliability, so the weather forecast released to the public in China is generally within one week. Warm winter or cold winter refers to the general trend of temperature throughout winter (usually 65438+February-February). The temperature in China is low in 65438+February this year, whether it is cold winter or warm winter depends on the situation in 65438+ 10 and February next year.

Extended data:

Weather forecast (measurement) or meteorological forecast (measurement) is to use modern science and technology to predict the state of the earth's atmosphere in a certain place in the future. Since prehistoric times, human beings have begun to predict the weather and arrange their work and life accordingly (such as agricultural production and military operations). Today's weather forecast mainly uses the collection of a large number of data (temperature, humidity, wind direction and speed, air pressure, etc. ), and then use the current understanding of atmospheric processes (meteorology) to determine future air changes. Because of the chaos of the atmospheric process and the fact that science has not fully understood the atmospheric process today, there will always be some errors in the weather forecast.

References:

Weather forecast-Baidu Encyclopedia