Translation guide
The amount of rain that falls over a period, or the event of rain falling. Japanese distinguishes between the phenomenon, measured quantity, and intensity.
Referring to the quantity of rain, often in weather reports or data.
Describing the occurrence of rain, often in general or descriptive statements.
Formal or technical term for rainfall as an event. Used in weather forecasts and reports.
Heavy rainfall is expected tomorrow.
General word for rain. Can be used for rainfall in everyday conversation.
Literal 'the falling of rain', used when defining or explaining rainfall conceptually.
Rainfall means the falling of rain.
Emphasizing the strength or volume of rain.
Common word for heavy rain. Often used in warnings and news.
The heavy rainfall caused the river to flood.
Torrential rain, often used for extreme rainfall events.
Technical term for intense rain, used in meteorology.
Both mean 'amount of rainfall'. 降水量 is the standard meteorological term and includes all forms of precipitation (rain, snow, etc.), while 雨量 specifically refers to rain. In everyday weather reports, 降水量 is more common.
The rainfall is about average.
It is measured with a rain gauge.
While 雨 means 'rain', it is not used for measured quantities. Saying '雨は50ミリです' is unnatural. Use 降水量 or 雨量 instead.
The annual rainfall in this region is high.
There was a lot of rainfall.
Record rainfall was observed.
Visibility is poor due to intense rainfall.