‹ Kailua-Kona weather by month
Typical December weather
Kailua-Kona
Hawaii · December
82° days
70° nights
about 2 rainy days · 11 hours of daylight · ocean 79°
What to pack
- Swimsuit
- Sunscreen
What December feels like
December fills up between the holidays and the whale boats start running again. Mauna Kea often has snow on top by now, so you can be swimming in the morning and looking at a white summit in the afternoon.
Real rain shows up about 2 days all month; the rest stay dry.
Can you swim?
The ocean runs about 79° — bath-warm.
The numbers
| Typical high | 82° |
|---|---|
| Typical low | 70° |
| Days with real rain | 2 |
| Total rain | 1.1 in |
| Water temperature | 79° |
| Sunrise / sunset (mid-month) | 6:50 am / 5:47 pm |