What are the climatic characteristics of the autumnal equinox?

The climate of the autumnal equinox season is characterized by gradually decreasing temperature, dry weather and large temperature difference between morning and evening. Due to the influence of monsoon, rainfall decreases and cold air moves south.

1, the temperature gradually decreases.

With the arrival of the autumnal equinox, the temperature gradually drops and the temperature difference between day and night gradually increases. During the day, the time of direct sunlight on the ground decreases, and the temperature drops obviously at night. The average temperature in most areas began to decrease gradually, and people felt the coolness of autumn.

2. The weather is dry

At the autumnal equinox, the temperature drops, the water vapor content in the air is low, the relative humidity is small, and the air is relatively dry. At this time, pay attention to moisturizing, drink plenty of water and apply moisturizing cream.

There is a great temperature difference between morning and evening.

At the autumnal equinox, the time of direct sunlight on the ground during the day decreases, and the temperature drops obviously at night, resulting in an increase in the temperature difference between morning and evening. Get up in the morning, the temperature is low and I feel cool; The temperature is low when you sleep at night, so you need to cover yourself with a thicker quilt. At the autumnal equinox, people should pay attention to the temperature difference between morning and evening and increase or decrease clothes in time.

4. Affected by monsoon

At the autumnal equinox, the monsoon gradually weakens, the summer rainstorm gradually decreases, and the weather is relatively stable. In the southeast coastal areas of China, the climate at the autumnal equinox is characterized by sunny weather and suitable temperature; In the northern region, the climate at the autumnal equinox is characterized by low temperature, large temperature difference between morning and evening and dry weather.

5. Decreased rainfall

At the autumnal equinox, the rainfall in most areas gradually decreases and there is less rain. This is because the monsoon gradually weakened, the rainstorm decreased and the climate began to dry.

6. Cold air heading south

On the day of the autumnal equinox, the sun is located at longitude 180 degrees, and the sunlight is almost direct to the equator, and day and night are almost equal. At this time, the waiting temperature in the southern region has generally dropped below 22℃, and it has entered a cool autumn. "An autumn rain and a cold". The cold air from the south meets the warm and humid air that gradually decays, resulting in repeated rainfall and the temperature dropping again and again.

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