Lihue, Kauai weather in December
Temperature, sea and sunshine in December: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in December
Good
Best time to visit: January – December
What is the weather like in Lihue, Kauai in December?
In December, Lihue, Kauai is warm: daytime highs average 25 °C, and even at night it stays warm at around 22 °C. The sea averages 25.1 °C – pleasant for swimming. The sun shines for around 7 hours a day. Rain is frequent, with about 13 rainy days and 78 mm in total. The air is often humid and muggy. All in all, December is a good month for a holiday in Lihue, Kauai.
December compared
How the weather changes from November to January. Tap a month to open it.
| NovemberNov | DecemberDec | JanuaryJan | |
|---|---|---|---|
| Score | 79 | 77 | 77 |
| Day | 26° | 25° | 24° |
| Night | 23° | 22° | 21° |
| Sea | 26° | 25° | 25° |
| Sun | 7 h | 7 h | 7 h |
| Rain days | 13 | 13 | 11 |
More details for December
- Daylight
- 10 h 48 min07:08 – 17:57
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 23 daysdew point 18 °C or moreAll months
- Wind
- 16 km/haverage daily peakAll months
- Cloud cover
- 50 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC−10Pacific/Honolulu
How the score comes together
- Temperatureweight 35 %93 %
- Seaweight 25 %100 %
- Sunshineweight 20 %58 %
- Few rainy daysweight 20 %39 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in December
- Swimwear
- Sunscreen
- Insect repellent
- Rain jacket or umbrella
Lihue, Kauai in December: quick answers
Is Lihue, Kauai hot in December?
Warm rather than hot: in December, daytime highs in Lihue, Kauai average 25 °C and nights cool to about 22 °C.
Can you swim in Lihue, Kauai in December?
Yes. In December the sea averages 25.1 °C – pleasant for swimming.
Does it rain much in Lihue, Kauai in December?
Rain is frequent, with about 13 rainy days and 78 mm in total.
Lihue, Kauai month by month
The whole year in Lihue, KauaiAll destinations: USAHawaii weather in DecemberWhere to go in DecemberSea temperature in December
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences