Complete 2016 Long-Range Weather Forecast for the Hawaii Region, November 2015 to October 2016 includes week-by-week details.
Free 2-Month Weather Forecast
OCTOBER 2015: temperature 79.5° (0.5° below avg.); precipitation 4" (2" above avg.); Oct 1-7: Showers, then sunny cool; Oct 8-10: Sunny, cool; Oct 11-20: Scattered showers, warm E+W; daily showers and scattered heavy t-storms, cool C. 21-31 Showers, cool.
NOVEMBER 2015: temperature 77.5° (avg.); precipitation 7.5" (5" above avg.); Nov 1-3: T-storms, cool; Nov 4-8: Showers, warm; Nov 9-12: Sunny, nice C; a few t-storms, cool E+W. 13-18 A few t-storms, turning cool; Nov 19-22: A few showers, warm C; t-storms, turning warm E+W. 23-30 Rainy periods and heavy t-storms, seasonable.
Annual Weather Summary: November 2015 to October 2016
Winter season temperatures will be below normal on the Big Island and Maui; near normal on Molokai, Oahu, Lanai, and Kahoolawe; and above normal on Kauai. The coolest periods will be in late December, early and mid-January, mid-February, and early March. Winter will be much rainier than normal, especially from November into mid-January.
April and May will be much rainier than normal, with temperatures close to normal.
Summer temperatures will be cooler than normal, on average, with slightly below-normal rainfall. The warmest period will be from the latter half of August into early September.
September and October temperatures will be slightly cooler than normal, with near-normal rainfall.
NOTE: Temperature and precipitation vary substantially based upon topography. The detailed forecast focuses on the Honolulu?Waikiki area and provides general trends elsewhere.
KEY: East (E), Central (C), West (W)