Hawaii Temperatures in September





Typical temperatures for cities, towns, parks and beaches across the Hawaiian Islands during the month of September are listed below in degrees Fahrenheit and Celsius.

You'll find separate tables for each island: Hawaii (Big Island), Kauai, Lanai, Maui, Molokai and Oahu.

The tables give the normal maximum and minimum daily temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.

Island of 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 records from two stations high on the mountain slopes where temperatures are cooler, 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 September temperatures
High °F Low °F Place High °C Low °C
73 55 Hawaii Volcanoes Park 23 13
83 70 Hilo 29 21
87 75 Kailua Kona 31 24
57 41 Mauna Loa Observatory 14 5
77 63 Opihihale 25 17
88 75 Puukohola Heiau 31 24

Kauai

Normal daily temperatures for September
High °F Low °F Place High °C Low °C
87 72 Barking Sands 31 22
84 71 Kilauea 29 22
85 75 Lihue 30 24
89 73 Mahaulepu 31 23
87 72 Makaweli 31 22
85 70 Princeville Ranch 29 21
87 69 Waimea 31 21

Lanai

September temperature averages
High °F Low °F Place High °C Low °C
83 67 Lanai Airport 28 19

Maui

Temperature records 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 Haleakala weather station, at 6,960 feet (2,121 metres) elevation, is higher and cooler than the rest.

Normal temperatures for September
High °F Low °F Place High °C Low °C
65 48 Haleakala 18 9
83 70 Hana 28 21
85 70 Kaanapali 29 21
90 71 Kahului 32 22
87 72 Kapalua 30 22
75 59 Kula 24 15
78 69 Makena State Park 26 21
83 72 Ohe'o Gulch Pools 28 22
85 70 Puukolii 29 21

Molokai

Average September temperatures
High °F Low °F Place High °C Low °C
84 71 Halawa 29 22
87 73 Molokai Airport 30 23

Oahu

Average daily temperatures in September
High °F Low °F Place High °C Low °C
87 70 Ewa Beach 31 21
88 75 Honolulu 31 24
83 74 Kahuku 28 23
85 74 Kaneohe 30 23
88 74 Waikiki 31 23
85 74 Waimanalo 30 23
86 70 Waimea Falls Park 30 21
Reference

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

Hawaii Temperatures
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