Hawaii County (Hilo)
January
Weather in Hawaii County, Hawaii for January 2026
Your guide to Hawaii County weather in January - trends and predictions
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Until now, January 2026 in Hawaii County is slightly cooler than the historical average by -0.8 °F.
The forecast for the next days in Hawaii County predicts temperatures to be around 23 °F, close to the historical average.
In general, the average temperature in Hawaii County at the beginning of January is 22.3 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 24.1 °F by the end of January.
Hawaii County experiences heavy rainfall in January, with over 20 rainy days and an average total precipitation 121.2 mm.
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Temperatures
Rain 🌧️
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9
Dry days
22
Rainy days
0
Snow days
23°/18°
Temperatures
16 km/h
Avg max wind
74 %
Avg humidity
Hawaii County Weather January
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Temperatures trend during January in Hawaii County
See the weather trend as well as the moving average line
January weather in Hawaii County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jan. 1 |  Patchy rain possible | 23° /18° | 2.4 mm | 4 | |
| Jan. 2 | Patchy rain possible | 22° /19° | 4.8 mm | 3 | |
| Jan. 3 | Patchy rain possible | 23° /18° | 3.1 mm | 4 | |
| Jan. 4 |  Overcast | 22° /19° | 7.8 mm | 4 | |
| Jan. 5 | Patchy rain possible | 22° /16° | 103.5 mm | 3 | |
| Jan. 6 | Overcast | 22° /17° | 72.7 mm | 4 | |
| Jan. 7 |  Sunny | 22° /16° | 1.9 mm | 4 | |
| Jan. 8 | Overcast | 24° /17° | 0.9 mm | 4 | |
| Jan. 9 |  Moderate or heavy rain shower | 22° /18° | 8.1 mm | 4 | |
| Jan. 10 |  Heavy rain at times | 23° /18° | 7.2 mm | 5 | |
| Jan. 11 | Moderate or heavy rain shower | 24° /18° | 5.6 mm | 5 | |
| Jan. 12 | Moderate rain at times | 24° /19° | 6.4 mm | 5 | |
| Jan. 13 | Moderate or heavy rain shower | 23° /19° | 8.1 mm | 3 | |
| Jan. 14 | Patchy rain possible | 24° /19° | 2.9 mm | 5 | |
| Jan. 15 | Patchy rain possible | 23° /18° | 1.8 mm | 5 | |
| Jan. 16 | Heavy rain at times | 23° /18° | 3.4 mm | 5 | |
| Jan. 17 | Patchy rain possible | 21° /17° | 1.2 mm | 1.3 | |
| Jan. 18 | Patchy rain possible | 21° /18° | 1.6 mm | 1.2 | |
| Jan. 19 | Patchy rain possible | 23° /20° | 1.6 mm | 0 | |
| Jan. 20 | Patchy rain possible | 24° /20° | 0.4 mm | 5 | |
| Jan. 21 | Patchy rain possible | 24° /20° | 0.3 mm | 5 | |
| Jan. 22 | Patchy rain possible | 22° /20° | 1.7 mm | 5 | |
| Jan. 23 | Patchy rain possible | 22° /20° | 0.7 mm | 5 | |
| Jan. 24 | Patchy rain possible | 22° /20° | 0.6 mm | 5 | |
| Jan. 25 | Patchy rain possible | 24° /19° | 0.2 mm | 5 | |
| Jan. 26 | Patchy rain possible | 24° /20° | 0.1 mm | 5 | |
| Jan. 27 |  Partly cloudy | 25° /19° | 0.1 mm | 6 | |
| Jan. 28 | Patchy rain possible | 23° /20° | 0.1 mm | 5 | |
| Jan. 29 | Patchy rain possible | 25° /20° | 0.2 mm | 5 | |
| Jan. 30 | Moderate rain at times | 25° /19° | 1.9 mm | 6 | |
| Jan. 31 | Light rain shower | 23° /19° | 6.2 mm | 5 | |
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Important Notice
Our weather forecast for Hawaii County in January 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 January - FAQ
What are the expected maximum and minimum temperatures in Hawaii County during January?
During January, expect a variety of temperatures with highs around 23° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in Hawaii County during January?
Significant rainfall exceeding 121.2 mm is expected in Hawaii County during January, occurring over more than 22 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Hawaii County during January?
The average wind speed in Hawaii County during January is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
January rainfall patterns in Hawaii County
Explore the daily rainfall trends and prepare for Hawaii Countys January weather 💧
Typically, Hawaii County has 22 rainy days in January with a total of 121.2 mm of rainfall.
UV exposure in Hawaii County during January
Stay informed about UV levels for safe outdoor activities throughout the month of January ☀️
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Where is Hawaii County?Get accurate weather forecasts for Hawaii County, located at latitude 19.73 and longitude -155.091. Stay updated with localized weather information tailored for Hawaii County.
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