Translation guide
A period of abnormally cold weather, often sudden and severe. In Japanese, this is typically expressed with specific meteorological terms or descriptive phrases.
A sudden, large drop in temperature over a short period, often associated with weather forecasts.
A sudden period of cold weather in everyday conversation.
A natural, everyday way to say 'it suddenly gets cold'. Not a noun, but a common verbal expression.
The direct translation '冷たい波' (tsumetai nami) means a 'cold wave' in the sense of an ocean wave that is cold, not a weather phenomenon. Do not use this for meteorological cold waves.
今週末、強い寒波が到来する見込みです。
A strong cold wave is expected to arrive this weekend.
Due to the cold wave, temperatures will drop nationwide.
記録的な大寒波が日本列島を襲った。
A record-breaking severe cold wave hit the Japanese archipelago.
There is a strong influx of cold air aloft, which may bring heavy snow.
It was warm until yesterday, but it suddenly got cold, huh?
Refers to a return of cold weather in early spring, similar to a 'cold snap' after a warm spell.
The cherry blossoms bloomed, but with this cold snap it feels like winter again.