Japan · 1991–2020

Best time to visit
Aomori.

June leads for comfortable weather in Aomori: typically 22.1°C by day, 13.7°C at night, with 71 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high22.1°C

Typical low13.7°C

Rain in June71 mm

Comfort

June

June · September · July

82climate match

Beach

July

July · August · June

57climate match

Outdoors

May

May · June · October

80climate match

The weakest month is January, scoring 5 against June’s 82 — days reach only 1.9°C, 22° below the 24°C the score treats as ideal.

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

51.9° / -3.7°

Feb

52.9° / -3.8°

Mar

57.1° / -1.3°

Apr

3013.9° / 3.4°

May

6119.1° / 8.9°

Jun

8222.1° / 13.7°

Jul

6426.2° / 18.3°

Aug

4827.7° / 19.8°

Sep

7224.5° / 15.2°

Oct

4318.3° / 8.6°

Nov

511.3° / 2.7°

Dec

54.8° / -1.6°

Monthly climate evidence for Aomori — 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	1.9°C	-3.7°C	148 mm	23.1	10.2°C	9 h 33	5	Good coverage
February	2.9°C	-3.8°C	112 mm	20.4	8.2°C	10 h 34	5	Good coverage
March	7.1°C	-1.3°C	89 mm	17.4	7.6°C	11 h 49	5	Strong coverage
April	13.9°C	3.4°C	81 mm	12.9	7.9°C	13 h 14	30	Good coverage
May	19.1°C	8.9°C	74 mm	10.1	10.8°C	14 h 26	61	Good coverage
June	22.1°C	13.7°C	71 mm	7.8	15.2°C	15 h 05	82	Good coverage
July	26.2°C	18.3°C	142 mm	11	19.1°C	14 h 50	64	Good coverage
August	27.7°C	19.8°C	198 mm	12.1	22.6°C	13 h 48	48	Good coverage
September	24.5°C	15.2°C	172 mm	10.9	22.3°C	12 h 25	72	Good coverage
October	18.3°C	8.6°C	153 mm	14.7	19.1°C	11 h 03	43	Good coverage
November	11.3°C	2.7°C	165 mm	19.8	15.2°C	9 h 51	5	Good coverage
December	4.8°C	-1.6°C	185 mm	23	12.3°C	9 h 15	5	Good coverage

Records at AOMORI, 1956–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	12.0°C22 Jan 1988	-15.5°C16 Jan 1967	65 mm7 Jan 2007	266 mm1966 · driest 64 mm in 1993	70
February	17.1°C25 Feb 2010	-18.4°C11 Feb 1956	48 mm12 Feb 1958	191 mm1965 · driest 33 mm in 1990	69
March	21.4°C28 Mar 2018	-16.0°C2 Mar 1957	53 mm29 Mar 1966	196 mm1970 · driest 0 mm in 2026	70
April	28.3°C21 Apr 1998	-6.9°C5 Apr 1970	104 mm26 Apr 1994	223 mm1964 · driest 0 mm in 2025	70
May	33.6°C26 May 2019	-1.4°C6 May 1987	131 mm26 May 1994	190 mm1982 · driest 0 mm in 2025	70
June	33.5°C7 Jun 1987	4.0°C15 Jun 1985	57 mm20 Jun 1979	200 mm1979 · driest 0 mm in 2025	70
July	35.9°C21 Jul 2017	6.5°C1 Jul 1976	134 mm25 Jul 2000	258 mm2009 · driest 0 mm in 2025	70
August	36.7°C12 Aug 1994	9.7°C24 Aug 1972	153 mm5 Aug 1977	595 mm2022 · driest 0 mm in 2025	69
September	36.1°C18 Sep 2012	3.0°C29 Sep 1957	122 mm17 Sep 2013	389 mm1958 · driest 0 mm in 2025	68
October	28.2°C4 Oct 2025	-1.7°C26 Oct 1961	141 mm28 Oct 1999	228 mm2006 · driest 0 mm in 2025	69
November	23.8°C3 Nov 2003	-7.5°C30 Nov 1960	70 mm15 Nov 2013	231 mm1977 · driest 0 mm in 2025	69
December	18.6°C4 Dec 2018	-12.7°C27 Dec 1966	130 mm31 Dec 2013	471 mm2013 · driest 0 mm in 2025	69

Typical days per month at AOMORI, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	15	4
February	0	0	14	2
March	0	0	12	2
April	<1	0	2	2
May	2	<1	0	2
June	6	<1	0	3
July	18	4	0	4
August	23	7	0	4
September	12	2	0	4
October	<1	0	0	3
November	0	0	3	5
December	0	0	12	5

How often, not how much — every day in AOMORI’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	0%	75%	16%	95%	0.0–3.4°C
February	0%	69%	12%	89%	0.2–4.1°C
March	<1%	50%	7%	64%	4.6–8.7°C
April	5%	36%	8%	43%	11.7–15.2°C
May	30%	33%	8%	34%	17.3–20.6°C
June	51%	32%	10%	32%	20.3–23.5°C
July	68%	32%	13%	35%	23.2–27.5°C
August	66%	34%	15%	40%	25.6–29.7°C
September	57%	40%	15%	50%	22.3–25.6°C
October	19%	45%	12%	56%	16.5–19.2°C
November	<1%	59%	17%	83%	9.0–12.5°C
December	0%	73%	19%	95%	2.5–6.3°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.

1956Each stripe is one year’s mean temperature against the 35-year average. Warmest: 2025. Coolest: 1965.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2130658
NOAA station: JA000047575 · AOMORI
Station distance: 2.8 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 16 usable years
Daylight: Calculated from latitude 40.82°, 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 AOMORI is what differs

Hirosaki→Towada→Goshogawara→Kuroishi→Hirakawa→Tsugaru→

Or put two places side by side: Aomori vs Hirosaki

Best time to visitAomori.

June

July

May

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Aomori.

The whole year,
without the guesswork.

Nearby, measured,
and named.