Hawaii Weather In December 2025. Explore comprehensive december 2025 weather forecasts for honolulu, including daily high and low temperatures, precipitation risks, and monthly temperature trends. Hawaii will see four of the five outgoing mwc programs in the 2025 campaign โ.
Temperatures in december for hawaii drop to 70 to 81 degrees f and rain is common. A typical december day in hawaii sees temperatures sitting in the low 80s.