Is this weather normal in Honolulu County?

Hawaii · county records since 1991, through September 2026.

Weather › Hawaii › Honolulu County

The last 12 months brought 88.7 inches of rain and snow to Honolulu County, 164% of the usual 54.1. 5.9 inches fell in September, the 6th-most for a September there in 36 years.

This week

Usual for Oct 28 to Nov 3: highs near 81°, lows near 68°

That is the 1991 to 2020 average for these dates in Honolulu County. The Weather Service forecast fills in below.

Loading the forecast...

usual high for the datewarmercooler

The last 12 months

Oct: +0.5°OctNov: +0.8°NovDec: +1.3°DecJan 2026: +0.9°JanFeb: -0.2°FebMar: +0.9°MarApr: +0.8°AprMay: -0.2°MayJun: 0.0°JunJul: -0.1°JulAug: +0.1°AugSep: +0.5°Sepwarmercooler

Each bar is a month's average temperature against the usual for that month (1991 to 2020). Ranks compare the same month in every year since 1991.

Every year since 1991

19912025

Rain and drought

Oct: -2.5 inOctNov: -2.5 inNovDec: +2.8 inDecJan 2026: -0.1 inJanFeb: +5.3 inFebMar: +20.8 inMarApr: +2.5 inAprMay: +2.2 inMayJun: +0.3 inJunJul: -0.5 inJulAug: +4.4 inAugSep: +2.0 inSepwetterdrier

Rain and melted snow against the usual for each month. The drought reading is NOAA's Palmer index for the county.

Month by month in Honolulu County

MonthUsual high / lowUsual rainWarmestColdest
January77° / 63°4.8 in72.2° 202167.8° 1993
February77° / 63°4.5 in72.4° 200467.2° 1993
March77° / 64°5.9 in72.9° 202268.6° 1991
April78° / 65°4.1 in73.5° 202569.8° 2009
May80° / 67°3.5 in75.1° 200571.2° 1998
June82° / 69°3.3 in76.9° 201973.1° 1998
July83° / 70°3.8 in78.0° 201974.3° 2011
August84° / 70°3.7 in79.4° 201975.4° 2010
September84° / 70°3.9 in79.2° 201974.8° 2012
October83° / 69°5.0 in77.4° 201974.6° 1999
November80° / 68°5.8 in75.7° 201971.8° 1996
December78° / 65°5.8 in73.7° 201968.8° 1996

Warmest and coldest are the month's whole-month average temperature, with the year it happened.

Towns in Honolulu County

Nearby counties