Places › Kailua-Kona, HI › September

Kailua-Kona in September

One of the best months — score 98 of 100

Typical September days in Kailua-Kona reach about 87°F with nights near 75°F.

Avg high

87°F

1991–2020 normal

Avg low

75°F

1991–2020 normal

Rain total

0.54 in

in a typical September

Rain days

days with at least 0.01 in

Daylight

12h 14m

at mid-September, computed

What to pack for Kailua-Kona in September

Swimsuit, sandals, and reef-safe sunscreen.

Every packing line is triggered by a number on this page — the rules are on How we pick.

September vs. the alternatives

This month

September · 98

High 87°F · rain 5 days

Best month

January · 98

High 81°F · rain 3 days

Neighbors

August (98) · October (98) · 98

High 87°F · rain 4 days

The whole year in Kailua-Kona

JAN
81°F
★ Best
Rain 3 days
Daylight 11h 04m FEB
82°F
★ Best
Rain 3 days
Daylight 11h 28m MAR
82°F
★ Best
Rain 5 days
Daylight 11h 59m APR
83°F
Rain 4 days
Daylight 12h 34m MAY
84°F
Rain 6 days
Daylight 13h 03m JUN
85°F
Rain 5 days
Daylight 13h 19m JUL
86°F
Rain 4 days
Daylight 13h 13m AUG
87°F
Rain 4 days
Daylight 12h 48m SEP
87°F
Rain 5 days
Daylight 12h 14m OCT
86°F
Rain 4 days
Daylight 11h 40m NOV
84°F
Rain 3 days
Daylight 11h 11m DEC
82°F
Rain 4 days
Daylight 10h 57m

Averages are the 1991–2020 climate normals (NOAA National Centers for Environmental Information) for the station named on each page. Rain days = days with at least 0.01 in of precipitation. Daylight is computed for the middle of the month.