Average Rainfall for Hawaii in December





The tables below give monthly averages for rainfall during December at cities, towns, resorts, parks and beaches in Hawaii.

Each place has a total for the amount of precipitation it usually receives this month. There is also a count of the number of days with wet weather, when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

The rainfall totals are averages based on weather data collected from 1991 to 2020 for the US National Centers for Environmental Information.

You can jump to a separate table for each island: Hawaii Big Island, Kauai, Lanai, Maui, Molokai and Oahu

Hawaii Big Island

Places with weather information on Hawaii's Big Island include Kailua Kona in South Kona and Puukohola Heiau in the Kohala region at the north end. Plus there are rainfall data from two stations high on the slopes of mountains: the Hawaii Volcanoes Park Visitor Center at 3,970 feet (1,210 metres) and the Mauna Loa Slope Observatory at 11,152 feet (3,399 metres) elevation.

Average December rainfall
Days Place Inches Milli­metres
25 Hawaii Volcanoes Park 11.4 289
22 Hilo 12.1 307
4 Kailua Kona 1.1 27
24 Kapoho Beach 8.8 224
6 Mauna Loa Observatory 1.3 34
8 Opihihale 2.5 64
4 Puukohola Heiau 1.2 31

Kauai

Average monthly precipitation in December
Days Place Inches Milli­metres
7 Barking Sands 3.5 88
22 Kilauea 6.5 165
18 Lihue 4.6 118
9 Makaweli 4.2 106
22 Princeville Ranch 8.0 204

Lanai

December averages for total rainfall
Days Place Inches Milli­metres
5 Lanai Airport 2.2 55

Maui

Precipitation information for Maui include Kaanapali and Kapalua in West Maui, Makena on the South Shore, and Hana and Ohe'o Gulch Pools at the island's east end. The weather station in Haleakala National Park is located 6,959 feet (2,121 metres) up the mountain.

Average amount of rain in December
Days Place Inches Milli­metres
12 Haleakala 5.3 134
11 Kaanapali 3.2 81
10 Kahului 2.8 71
15 Kapalua 3.9 98
7 Kula 2.6 67
7 Makena State Park 2.4 60
22 Ohe'o Gulch Pools 7.3 185
11 Puukolii 3.2 81

Molokai

Rainfall totals for December
Days Place Inches Milli­metres
4 Kaunakakai 1.6 41
11 Molokai Airport 2.9 73

Oahu

Total precipitation during December
Days Place Inches Milli­metres
10 Ewa Beach 2.6 65
9 Honolulu 2.2 55
18 Kahuku 4.0 100
21 Kaneohe 5.6 141
14 Waikiki 3.0 77
19 Waimanalo 5.5 138
25 Waimea Falls Park 5.5 139
Reference

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

Hawaii Rainfall
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