1.
temperature difference; temperature gap
The difference in air temperature between two times, places, or conditions.
朝晩の気温差が激しい。
The temperature difference between morning and evening is extreme.
気温差で体調を崩しやすい。
Temperature fluctuations make it easy to get sick.
室内と室外の気温差が大きいと結露が発生する。
When the temperature difference between indoors and outdoors is large, condensation forms.
春は一日の気温差が十度を超えることもある。
In spring, the daily temperature difference can exceed ten degrees.
Composed of 気温 (air temperature) + 差 (difference). Very common in weather forecasts, health advice, and daily conversation, especially during seasonal transitions when large temperature swings can cause health issues.
COMMON COLLOCATIONS:
- 気温差が激しい: the temperature difference is extreme
- 気温差が大きい: the temperature gap is large
- 一日の気温差: daily temperature range
- 朝晩の気温差: morning-evening temperature difference
- 気温差で風邪を引く: catch a cold due to temperature changes
USAGE:
Often appears in health-related contexts. Japanese weather reports frequently warn about 寒暖差 (hot-cold difference), which is synonymous. The concept of 寒暖差疲労 (fatigue from temperature swings) is commonly discussed in health media.