Long-Range Weather Forecast for Hilo, HI
Annual Weather Summary
Winter temperatures will be warmer than normal, with the coolest periods in mid- to late December and mid- to late March. Rainfall will be below normal, with the stormiest periods in early December, late January, and early March. April and May will be warmer and rainier than normal. Summer will be warmer than normal, with the hottest periods from mid-July into early August and in late August. Rainfall will be below normal E and above normal W. September and October will be warmer than normal, with the hottest periods in early September and from late September into early October. Rainfall will be below normal despite a stormy period in mid-October.
November 2021 to October 2022
KEY: east (E), central (C), west (W). Note: Temperature and precipitation are substantially based upon topography. The detailed forecast focuses on the Honolulu–Waikiki area and provides general trends elsewhere.
Key: north (N), central (C), south (S), panhandle (P), elsewhere (EW).
Free 2-Month Weather Forecast
|Aug 1-5||A few t-storms East and West, sunny Central; hot|
|Aug 6-9||Sunny, hot|
|Aug 10-17||Rainy periods East, sunny Central and West; warm|
|Aug 18-31||Rainy periods East and West, a few showers Central; hot|
|August||temperature 82.5° (1° above avg.)|
precipitation 0.6" (3" below avg. East, 3" above West)
|Sep 1-8||Showers East and West, sunny Central; hot|
|Sep 9-15||Showers East, sunny Central and West; warm|
|Sep 16-22||Showers East and West, sunny Central; warm|
|Sep 23-30||Rainy periods East, a few showers Central and West; hot|
|September||temperature 82.5° (1° above avg.)|
precipitation 0.2" (0.6" below avg.)