The feature of the spring weather is that change of temperature is drastic. There are vestiges of the cold air of winter, and by the strong sunlight of the cold air and spring being mixed, change of the weather is sharp and can see the clouds of varieties.

□Weather phenomenon
・Yellow sand phenomenon : the phenomenon in which sand rides on westerlies from China or Mongolian's desert.
・Cloudy weather during the cherry blossom season: The state where empty is becoming thinly cloudy when a cherry tree blooms.
・spring Urara : the reverse sides,the state which cumulus is in empty plentifully and is easy to pass warmly.
・First strong south wind of the year: The strong wind from south blown at the beginning of spring.

　As the weather by which summer of Japan is characterized, there are a drought, intense heat, etc. depending on a rainy season, thunderstorm, and a year. Thunder appears during the rainy season and showers on a lot of rain violently for a short time. It lets one year pass and many meteorological disasters occur in summer. Moreover, although it is very sultry and temperature in the daytime is 30 ℃ ～ about 35 ℃ about in summer of Japan, since it is humid, physical feeling temperature is felt high.

□Weather phenomenon
・Rainy season: The phenomenon in which many days of cloudy weather or rain appear summer from the end of spring.
・Tropical day: The time of the maximum temperature in the daytime exceeding 30 degrees.
・Sultry night: The time of there being the 25 lowest temperature or more of night.
・Shower: The phenomenon which happens at the time of the distribution of atmospheric pressure of summer.
・Intense heat: When the state of a tropical day or a sultry night continues.

　The feature of the weather of autumn resembles spring and the feature is changeable. Since a typhoon approaches well, frontal activity may become active and this time may become heavy rain. Otherwise, if a migratory anticyclone comes to pass, it may become cold and it may often frost toward morning openly.

□Weather phenomenon
・Lingering summer heat: The heat between the first day of fall and the autumnal equinox.
・Autumn rain: The long rain of autumn brought about by the stationary front (autumnal rain front) of autumn.
・Fine autumn day: One which is the feature of autumn in the thing of the fine weather over which autumn became clear and it went.
・Thick fog: The deep fog which is easy to generate when the temperature difference of the morning and evening is large.
・Early sunset: The state whose day is early depressed in it being unexpected from the evening.
・Early frost: The frost from which it gets down earlier than an ordinary year in autumn.

　It is the coldest season among all the year rounds, and especially, it will apply first in February from the end of January, and temperature will fall most in winter. Moreover, sunrise is late and sunset dries more often openly by the snow and Pacific Ocean side by a monsoon early at the Sea of Japan side.

□Weather phenomenon
・Indian summer day: While cold becomes severe from the late autumn to early winter day by day, say the thing of the quiet and warm weather.
・Freezing: When temperature becomes below the freezing point, the water surface of a pond should begin to freeze.
・Fog deposit: What the grain of fog or clouds adhered to the tree at the time of the freezing point, and froze.