1.
temperature difference; temperature gap
The difference in air temperature between two times, places, or conditions.
When the temperature difference between indoors and outdoors is large, condensation forms.
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.
Related Words
Related:
寒暖差 (temperature difference)