| Table 2. Tropical climate regimes and degree of seasonality based on the number of consecutive wet months per year (modified from Thornthwaite, 1948, and Cecil, 2003). | ||
Average number of wet months |
Climate regime |
Degree of seasonality |
|---|---|---|
| 0 | Arid | Nonseasonal |
| 1–2 | Semiarid | Minimal |
| 3–5 | Dry subhumid | Maximum |
| 6–8 | Moist subhumid | Medial |
| 9–11 | Humid | Minimal |
| 12 | Perhumid | Nonseasonal |