Hawaii County (Hilo)
December
Weather in Hawaii County, Hawaii for December 2025
Your guide to Hawaii County weather in December - trends and predictions
In general, the average temperature in Hawaii County at the beginning of December is 24 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 23.4 °F by the end of December.
Hawaii County in December brings notable rainfall, with an average of 20 rainy days and a total precipitation of 66.9 mm.
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Temperatures
Rain 🌧️
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11
Dry days
20
Rainy days
0
Snow days
24°/19°
Temperatures
15 km/h
Avg max wind
75 %
Avg humidity
Hawaii County Weather December
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Temperatures trend during December in Hawaii County
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December weather in Hawaii County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Dec. 1 |  Cloudy | 24° /18° | 0 mm | 5 | |
| Dec. 2 |  Moderate rain at times | 24° /18° | 0.7 mm | 5 | |
| Dec. 3 |  Patchy rain possible | 24° /18° | 0.5 mm | 5 | |
| Dec. 4 |  Overcast | 25° /20° | 0 mm | 6 | |
| Dec. 5 | Cloudy | 25° /20° | 0.2 mm | 6 | |
| Dec. 6 | Overcast | 23° /19° | 0 mm | 5 | |
| Dec. 7 | Overcast | 23° /17° | 0.6 mm | 5 | |
| Dec. 8 | Patchy rain possible | 23° /18° | 0.5 mm | 5 | |
| Dec. 9 | Patchy rain possible | 22° /18° | 3.1 mm | 5 | |
| Dec. 10 | Patchy rain possible | 23° /17° | 7.1 mm | 5 | |
| Dec. 11 |  Heavy rain at times | 22° /20° | 10.2 mm | 5 | |
| Dec. 12 | Heavy rain at times | 23° /19° | 5.8 mm | 5 | |
| Dec. 13 | Moderate or heavy rain shower | 23° /21° | 7.3 mm | 5 | |
| Dec. 14 | Patchy rain possible | 23° /19° | 0.8 mm | 5 | |
| Dec. 15 | Overcast | 24° /19° | 0.1 mm | 5 | |
| Dec. 16 | Patchy rain possible | 24° /18° | 0.9 mm | 5 | |
| Dec. 17 | Patchy rain possible | 25° /19° | 0.1 mm | 6 | |
| Dec. 18 | Cloudy | 26° /19° | 0 mm | 6 | |
| Dec. 19 | Patchy rain possible | 25° /19° | 0.4 mm | 6 | |
| Dec. 20 | Cloudy | 23° /18° | 0.2 mm | 5 | |
| Dec. 21 |  Sunny | 24° /18° | 0 mm | 6 | |
| Dec. 22 | Overcast | 25° /20° | 0.1 mm | 6 | |
| Dec. 23 | Heavy rain at times | 22° /18° | 9.6 mm | 5 | |
| Dec. 24 | Overcast | 22° /15° | 0.4 mm | 5 | |
| Dec. 25 | Patchy rain possible | 23° /16° | 0.3 mm | 5 | |
| Dec. 26 | Overcast | 24° /18° | 0.2 mm | 5 | |
| Dec. 27 | Overcast | 25° /20° | 1.1 mm | 6 | |
| Dec. 28 | Cloudy | 24° /20° | 3.7 mm | 5 | |
| Dec. 29 | Patchy rain possible | 22° /19° | 1.6 mm | 5 | |
| Dec. 30 | Patchy rain possible | 23° /19° | 6.4 mm | 5 | |
| Dec. 31 | Patchy rain possible | 23° /19° | 4.9 mm | 5 | |
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Important Notice
Our weather forecast for Hawaii County in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Hawaii County forecast closer to your planned date for the most up-to-date weather information.
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Hawaii County in December - FAQ
What are the expected maximum and minimum temperatures in Hawaii County during December?
During December, expect a variety of temperatures with highs around 24° and lows near 19°, suitable for diverse activities and preferences.
How much rainfall should be expected in Hawaii County during December?
Moderate rainfall is anticipated in Hawaii County during December, with a total of 66.9 mm spread over approximately 20 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Hawaii County during December?
The average wind speed in Hawaii County during December is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Hawaii County
Explore the daily rainfall trends and prepare for Hawaii Countys December weather 💧
UV exposure in Hawaii County during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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