United States · 1991–2020

Best time to visit
Honolulu.

February leads for comfortable weather in Honolulu: typically 27°C by day, 18.8°C at night, with 50 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortFebruary

Typical high27°C

Typical low18.8°C

Rain in February50 mm

Comfort

February

February · January · April

79climate match

Beach

May

May · April · June

96climate match

Outdoors

January

January · February · April

57climate match

The weakest month is August, scoring 60 against February’s 79 — days average 31.2°C, 7° above the 24°C the score treats as ideal, and nights stay at 23.6°C.

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

7826.8° / 18.5°

Feb

7927° / 18.8°

Mar

7027.4° / 19.5°

Apr

7328.5° / 20.6°

May

7029.3° / 21.3°

Jun

6530.3° / 22.6°

Jul

6130.7° / 23.3°

Aug

6031.2° / 23.6°

Sep

6031.1° / 23.1°

Oct

6130.3° / 22.6°

Nov

6428.7° / 21.5°

Dec

6927.5° / 20°

Monthly climate evidence for Honolulu — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 8 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	26.8°C	18.5°C	58 mm	6.2	24.4°C	10 h 58	78	Strong coverage
February	27°C	18.8°C	50 mm	5.8	24.0°C	11 h 25	79	Strong coverage
March	27.4°C	19.5°C	80 mm	7.4	24.0°C	11 h 58	70	Strong coverage
April	28.5°C	20.6°C	29 mm	5.2	24.4°C	12 h 37	73	Strong coverage
May	29.3°C	21.3°C	27 mm	4.7	25.0°C	13 h 08	70	Strong coverage
June	30.3°C	22.6°C	16 mm	3.4	25.7°C	13 h 25	65	Strong coverage
July	30.7°C	23.3°C	17 mm	4.7	26.0°C	13 h 19	61	Strong coverage
August	31.2°C	23.6°C	19 mm	4.2	26.5°C	12 h 52	60	Strong coverage
September	31.1°C	23.1°C	26 mm	5.2	26.8°C	12 h 14	60	Strong coverage
October	30.3°C	22.6°C	50 mm	6	26.7°C	11 h 37	61	Strong coverage
November	28.7°C	21.5°C	67 mm	7.7	26.0°C	11 h 06	64	Strong coverage
December	27.5°C	20°C	76 mm	8	25.1°C	10 h 50	69	Strong coverage

What has changed

Honolulu runs -0.1°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan

-0.2

Feb

0.0

Mar

-0.3

Apr

+0.3

May

0.0

Jun

+0.2

Jul

+0.1

Aug

0.0

Sep

-0.1

Oct

-0.2

Nov

-0.4

Dec

-0.4

February daytime highs, 2011–2020. Last recorded: 27.2°C.

Records at WAIKIKI 717.2, 1965–2023
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	31.7°C24 Jan 1973	6.1°C18 Jan 2009	105 mm20 Jan 1982	394 mm1982 · driest 3 mm in 2018	55
February	32.2°C29 Feb 1984	10.6°C27 Feb 1987	100 mm4 Feb 1979	225 mm1979 · driest 1 mm in 2000	55
March	33.3°C18 Mar 1986	11.7°C12 Mar 1976	102 mm6 Mar 2012	449 mm2006 · driest 3 mm in 2019	56
April	32.2°C24 Apr 2015	10.6°C28 Apr 2008	79 mm1 Apr 2006	120 mm2023 · driest 3 mm in 1990	56
May	33.9°C11 May 1995	11.7°C28 May 2018	144 mm3 May 1965	236 mm1965 · driest 1 mm in 2012	56
June	33.9°C26 Jun 1987	15.0°C8 Jun 2018	76 mm26 Jun 2019	134 mm2019 · driest 1 mm in 2010	56
July	35.0°C12 Jul 1987	15.0°C27 Jul 2008	53 mm25 Jul 1986	95 mm1986 · driest 2 mm in 2001	55
August	34.4°C17 Aug 2015	15.6°C1 Aug 2008	46 mm27 Aug 2001	103 mm1967 · driest 1 mm in 2003	53
September	36.1°C24 Sep 2019	13.3°C15 Sep 2017	65 mm22 Sep 1991	101 mm2015 · driest 1 mm in 1966	54
October	35.0°C5 Oct 1984	11.7°C14 Oct 2008	155 mm31 Oct 1978	192 mm1965 · driest 3 mm in 2012	54
November	33.3°C6 Nov 1980	13.3°C27 Nov 1972	149 mm29 Nov 1973	332 mm1996 · driest 5 mm in 1994	54
December	32.2°C13 Dec 1977	10.6°C21 Dec 2008	209 mm18 Dec 1967	369 mm1987 · driest 2 mm in 1976	54

Typical days per month at WAIKIKI 717.2, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	27	<1	2
February	25	<1	1
March	28	<1	2
April	29	4	<1
May	30	12	<1
June	29	22	<1
July	30	26	<1
August	30	29	<1
September	30	27	<1
October	30	22	1
November	29	5	2
December	29	<1	2

The best month has moved. On the 1961–1990 numbers the strongest month here was February (scoring 79); on 2011–2025 it is January (83). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in WAIKIKI 717.2’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	76%	24%	6%	25%	26.1–28.1°C
February	78%	22%	6%	24%	26.1–28.5°C
March	77%	23%	6%	24%	26.7–28.7°C
April	81%	19%	2%	15%	27.4–29.7°C
May	84%	15%	3%	12%	28.4–30.4°C
June	89%	11%	1%	7%	29.3–31.3°C
July	85%	14%	1%	10%	29.9–31.9°C
August	88%	12%	1%	7%	30.4–32.1°C
September	84%	16%	2%	13%	30.5–32.4°C
October	81%	19%	4%	17%	29.8–31.3°C
November	74%	25%	6%	28%	28.4–30.1°C
December	74%	26%	7%	28%	26.9–28.4°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.

1965Each stripe is one year’s mean temperature against the 50-year average. Warmest: 2015. Coolest: 1975.2017

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5856195
NOAA station: USC00519397 · WAIKIKI 717.2
Station distance: 5.8 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 21.31°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 8 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 WAIKIKI 717.2 is what differs

McCully - Moiliili→Mō‘ili‘ili→Kaimukī→Waikīkī→Diamond Head / Kapahulu / Saint Louis Heights→Ala Moana - Kakaʻako→

Or put two places side by side: Honolulu vs McCully - Moiliili

Best time to visitHonolulu.

February

May

January

The whole year,without the guesswork.

Honolulu runs -0.1°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Honolulu.

The whole year,
without the guesswork.

Honolulu runs -0.1°C
on the 1961–1990 baseline.

Nearby, measured,
and named.