United States · 1991–2020

Best time to visit
Kapaau.

February leads for comfortable weather in Kapaau: typically 23.9°C by day, 17.3°C at night, with 90 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortFebruary

Typical high23.9°C

Typical low17.3°C

Rain in February90 mm

Comfort

February

February · January · May

82climate match

Beach

September

September · October · August

78climate match

Outdoors

February

February · January · May

58climate match

The weakest month is July, scoring 57 against February’s 82 — rain falls on 17 days, and 122 mm of rain falls.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

7924.2° / 17.3°

Feb

8223.9° / 17.3°

Mar

6824.1° / 18°

Apr

7124.4° / 18.6°

May

7425.2° / 19.3°

Jun

6725.8° / 20.2°

Jul

5726.3° / 20.7°

Aug

6026.7° / 21.1°

Sep

6627° / 20.9°

Oct

6426.7° / 20.6°

Nov

6825.3° / 19.6°

Dec

6524.5° / 18.4°

Monthly climate evidence for Kapaau — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 14 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	24.2°C	17.3°C	109 mm	9.3	24.7°C	11 h 02	79	Good coverage
February	23.9°C	17.3°C	90 mm	9.7	24.4°C	11 h 27	82	Good coverage
March	24.1°C	18°C	152 mm	14.2	24.4°C	11 h 58	68	Good coverage
April	24.4°C	18.6°C	112 mm	14.5	24.7°C	12 h 35	71	Good coverage
May	25.2°C	19.3°C	78 mm	12.3	25.2°C	13 h 05	74	Good coverage
June	25.8°C	20.2°C	86 mm	14.8	25.7°C	13 h 21	67	Good coverage
July	26.3°C	20.7°C	122 mm	17.4	26.2°C	13 h 15	57	Good coverage
August	26.7°C	21.1°C	101 mm	14.8	26.7°C	12 h 49	60	Good coverage
September	27°C	20.9°C	75 mm	11.3	26.9°C	12 h 14	66	Good coverage
October	26.7°C	20.6°C	99 mm	12.1	26.8°C	11 h 39	64	Good coverage
November	25.3°C	19.6°C	114 mm	12.3	26.2°C	11 h 09	68	Good coverage
December	24.5°C	18.4°C	155 mm	13.9	25.4°C	10 h 55	65	Good coverage

Records at HAWI 168, 1993–2019
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	28.3°C30 Jan 1997	12.8°C25 Jan 2000	74 mm31 Jan 1996	155 mm2015 · driest 16 mm in 2001	23
February	27.2°C7 Feb 2005	8.3°C10 Feb 1994	81 mm2 Feb 2007	127 mm2007 · driest 7 mm in 2010	24
March	28.9°C5 Mar 1993	12.2°C30 Mar 1994	84 mm2 Mar 2004	257 mm2004 · driest 8 mm in 2003	24
April	28.3°C6 Apr 2016	13.9°C2 Apr 2013	65 mm8 Apr 2016	238 mm2016 · driest 0 mm in 2010	24
May	31.7°C13 May 2004	15.6°C18 May 1998	51 mm12 May 2015	134 mm2015 · driest 14 mm in 1999	23
June	31.1°C17 Jun 2008	15.6°C8 Jun 1995	49 mm20 Jun 2012	153 mm2012 · driest 6 mm in 2008	23
July	30.0°C21 Jul 2017	15.6°C12 Jul 1993	65 mm9 Jul 1997	212 mm1997 · driest 3 mm in 2013	24
August	31.1°C25 Aug 2015	17.2°C2 Aug 1999	49 mm4 Aug 2015	152 mm1994 · driest 9 mm in 2008	25
September	30.0°C11 Sep 2015	15.6°C2 Sep 1993	32 mm22 Sep 2015	108 mm2015 · driest 9 mm in 1996	24
October	31.1°C4 Oct 1993	16.1°C26 Oct 1993	97 mm16 Oct 2017	295 mm2017 · driest 0 mm in 2013	24
November	31.1°C10 Nov 1997	15.0°C29 Nov 2012	85 mm28 Nov 2001	169 mm2009 · driest 8 mm in 1995	22
December	30.0°C30 Dec 1996	13.3°C3 Dec 2009	154 mm24 Dec 1996	225 mm2016 · driest 7 mm in 2013	21

Typical days per month at HAWI 168, 1991–2020
Month	Days 25°C+	Heavy rain (10 mm+)
January	7	2
February	5	2
March	6	3
April	8	2
May	14	1
June	17	1
July	18	2
August	20	2
September	19	<1
October	19	2
November	12	2
December	8	3

How often, not how much — every day in HAWI 168’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	63%	37%	13%	42%	22.9–25.2°C
February	61%	37%	11%	45%	23.0–25.1°C
March	55%	45%	14%	59%	23.6–25.1°C
April	50%	50%	14%	63%	23.1–25.5°C
May	58%	42%	7%	52%	24.5–26.3°C
June	49%	44%	7%	53%	25.1–26.7°C
July	42%	50%	11%	64%	25.5–27.8°C
August	54%	46%	10%	58%	25.7–27.9°C
September	60%	35%	5%	39%	25.7–28.0°C
October	60%	35%	7%	41%	25.9–27.6°C
November	52%	43%	12%	53%	24.5–26.2°C
December	54%	42%	14%	50%	23.6–25.8°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5848308
NOAA station: USC00511339 · HAWI 168
Station distance: 3.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 16 usable years
Daylight: Calculated from latitude 20.23°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 14 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from HAWI 168 is what differs

Hāwī→Hala‘ula→Māhukona→Makapala→Niuli‘i→Hikapoloa→

Or put two places side by side: Kapaau vs Hāwī

Best time to visitKapaau.

February

September

February

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Kapaau.

The whole year,
without the guesswork.

Nearby, measured,
and named.