The difference between the day maximum and night minimum temperature. Smaller near the equator, larger in deserts.
measurementWhat is Diurnal Temperature Range?
The diurnal range in coastal Southeast Asia is typically only 6-8°C (e.g., Singapore: 24°C to 31°C). Inland and at elevation, ranges are larger: Bagan (Myanmar) can swing 18°C between pre-dawn and afternoon. Overcast skies reduce the diurnal range by trapping heat at night and blocking solar radiation by day. Clear dry nights produce the largest ranges.
Key points
- The difference between the day maximum and night minimum temperature. Smaller near the equator, larger in deserts.
- Category: measurement
Related terms
See also: diurnal-range is connected to other weather concepts. Browse the full glossary for related definitions.