2021 Long Range Weather Forecast for Kahului, HI
See long range weather forecasts for the next 60 days from The Old Farmer’s Almanac! Our long range forecasts can be used to make more informed decisions about future plans that depend on the weather, from vacations and weddings to sporting events and outdoor activities.
To see long term forecasts for the entire year, pick up a copy of The 2021 Old Farmer’s Almanac, available online and in stores.
Note: Long range forecasts are regional, not city-specific.
Free 2-Month Weather Forecast
| Dates | Weather Conditions |
|---|---|
| Jan 1-7 | Rainy periods East and West, sunny Central; warm |
| Jan 8-21 | A few showers, cool |
| Jan 22-28 | Rain, then sunny, cool |
| Jan 29-31 | Heavy rain, cool |
| January | temperature 72.5° (0.5° below avg.) precipitation 2.5" (2" below avg. East, 3" above Central, 1" below West) |
| Dates | Weather Conditions |
|---|---|
| Feb 1-4 | Rainy periods, cool |
| Feb 5-16 | Heavy rain East; a few showers, cool Central and West |
| Feb 17-22 | Heavy rain East; sunny, cool Central and West |
| Feb 23-28 | Rainy periods, seasonable |
| February | temperature 73.5° (avg. East, 1° above West) precipitation 3.5" (6" above avg. East, 3" below West) |
Annual Weather Summary
November 2020 to October 2021
November 2020 to October 2021
Winter season temperatures will be below average in the east and above average in the west, with the coolest periods in early and mid-December, mid-January, early February, and early March. Rainfall will be above normal in the east and below normal in the west, with the stormiest periods in mid-November, from late January into early February, and in early to mid-March. April and May will be cooler than normal in the east and warmer than normal in the west. The months will be slightly drier than normal overall. Summer will be slightly cooler than normal, with the warmest period in late July. Rainfall will be below normal in the east and above normal in the west. September and October will be cooler than normal, with the hottest period in mid-September. Rainfall will be below normal in the east and near normal in the west.
About the Hawaii Region
The Hawaii long range weather region includes all or part of the following states: HAWAII (Hilo, Honolulu, Kahului, Kailua, ‘Ewa Beach).
Hawaii Neighboring Regions
Here are the regions that neighbor the Hawaii long range weather region:
Temperature and Precipitation November 2020 to October 2021
Reader Comments
Leave a Comment
Hawaii’s volcanoes and earthquakes
Do you have any foresight on the current volcanic eruptions and earthquakes on the big island going forward?
earthquakes
On the Right-Hand Calendar Pages of the print or digital edition, we note the days on which the Moon rides high or low (in the sky). Traditionally, the date of the high begins the most likely 5-day period of earthquakes in the Northern Hemisphere; the date of the low indicates a similar 5-day period in the Southern Hemisphere. Also noted are two days each month when the Moon is on the celestial equator, indicating the most likely time for earthquakes in either hemisphere. This month, May, the Moon rides high on May 18 (low on the 4th). The Moon is on the celestial equator on May 12 and May 24. All of this is based on the idea of the Moon’s “pull” on Earth.
Please note that the volcano introduces special circumstances/conditions.