Japan · 1991–2020

Best time to visit
Tsugaruishi.

June leads for comfortable weather in Tsugaruishi: typically 21.6°C by day, 12.7°C at night, with 138 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high21.6°C

Typical low12.7°C

Rain in June138 mm

Comfort

June

June · July · May

67climate match

Beach

August

August · July · June

41climate match

Outdoors

May

May · October · June

75climate match

The weakest month is January, scoring 5 against June’s 67 — days reach only 5.3°C, 19° 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

55.3° / -4.1°

Feb

55.6° / -4.3°

Mar

99.1° / -1.5°

Apr

3215.1° / 3.3°

May

5719.7° / 8.6°

Jun

6721.6° / 12.7°

Jul

6124.9° / 17.2°

Aug

4826.5° / 19°

Sep

5423.6° / 15°

Oct

4818.8° / 8.5°

Nov

3613.6° / 2.5°

Dec

87.7° / -1.8°

Monthly climate evidence for Tsugaruishi — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 18 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	5.3°C	-4.1°C	59 mm	4.8	9.7°C	9 h 39	5	Good coverage
February	5.6°C	-4.3°C	43 mm	4.7	7.4°C	10 h 38	5	Good coverage
March	9.1°C	-1.5°C	94 mm	7.3	6.3°C	11 h 49	9	Good coverage
April	15.1°C	3.3°C	117 mm	9.4	7.9°C	13 h 11	32	Good coverage
May	19.7°C	8.6°C	120 mm	8.7	10.6°C	14 h 20	57	Good coverage
June	21.6°C	12.7°C	138 mm	10	14.8°C	14 h 57	67	Good coverage
July	24.9°C	17.2°C	191 mm	14.9	18.2°C	14 h 42	61	Good coverage
August	26.5°C	19°C	233 mm	13.1	21.2°C	13 h 43	48	Good coverage
September	23.6°C	15°C	289 mm	13.1	20.9°C	12 h 24	54	Good coverage
October	18.8°C	8.5°C	169 mm	8.2	18.2°C	11 h 05	48	Good coverage
November	13.6°C	2.5°C	69 mm	5.9	15.4°C	9 h 57	36	Good coverage
December	7.7°C	-1.8°C	84 mm	4.9	12.6°C	9 h 23	8	Good coverage

What has changed

Tsugaruishi runs +1.5°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

+0.8

Feb

+1.3

Mar

+2.6

Apr

+2.2

May

+2.1

Jun

+2.3

Jul

+1.9

Aug

+1.1

Sep

+1.4

Oct

+0.8

Nov

+1.0

Dec

+0.1

June daytime highs, 2011–2025. Last recorded: 25.2°C.

Records at MIYAKO, 1951–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	18.9°C5 Jan 1960	-13.6°C27 Jan 1985	117 mm7 Jan 2007	209 mm2007 · driest 0 mm in 2026	75
February	20.6°C25 Feb 2010	-12.9°C16 Feb 1978	152 mm16 Feb 1991	267 mm1958 · driest 0 mm in 2026	75
March	23.8°C28 Mar 2018	-10.8°C5 Mar 1952	168 mm23 Mar 1952	283 mm1952 · driest 6 mm in 2013	74
April	32.1°C21 Apr 1998	-4.6°C2 Apr 1978	163 mm20 Apr 1984	242 mm1984 · driest 0 mm in 2025	75
May	32.9°C20 May 1988	-0.8°C6 May 1987	168 mm16 May 1977	305 mm1955 · driest 0 mm in 2003	74
June	34.7°C26 Jun 2022	2.9°C10 Jun 1954	138 mm28 Jun 2015	392 mm1954 · driest 0 mm in 2025	74
July	35.6°C31 Jul 2023	4.9°C1 Jul 1976	312 mm8 Jul 2000	384 mm1999 · driest 0 mm in 2025	75
August	36.6°C11 Aug 2020	9.9°C19 Aug 2001	241 mm5 Aug 1986	513 mm1980 · driest 0 mm in 2025	74
September	34.3°C2 Sep 2000	5.8°C29 Sep 1981	218 mm26 Sep 1981	494 mm2020 · driest 0 mm in 2025	73
October	30.5°C4 Oct 2021	-0.6°C31 Oct 1983	159 mm1 Oct 1998	360 mm1991 · driest 0 mm in 2025	74
November	25.8°C3 Nov 2023	-5.7°C30 Nov 1960	160 mm20 Nov 1970	265 mm1964 · driest 0 mm in 2025	74
December	22.8°C4 Dec 2018	-11.1°C16 Dec 1985	210 mm26 Dec 1958	433 mm2010 · driest 0 mm in 1988	74

Typical days per month at MIYAKO, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	16	2
February	0	0	15	1
March	0	0	12	2
April	<1	0	3	3
May	4	<1	0	3
June	6	<1	0	3
July	12	5	0	4
August	16	6	0	4
September	8	1	0	4
October	<1	0	0	3
November	0	0	4	2
December	0	0	14	1

The best month has moved. On the 1961–1990 numbers the strongest month here was July (scoring 84); on 2011–2025 it is June (81). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in MIYAKO’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%	18%	6%	14%	3.5–6.4°C
February	<1%	22%	7%	20%	3.1–7.0°C
March	1%	26%	9%	24%	6.5–10.8°C
April	13%	28%	10%	25%	12.6–16.6°C
May	37%	29%	10%	26%	17.4–21.5°C
June	41%	35%	13%	44%	18.9–23.3°C
July	53%	40%	14%	48%	21.4–27.3°C
August	63%	38%	16%	46%	24.4–29.5°C
September	57%	39%	19%	48%	22.1–25.2°C
October	23%	29%	13%	27%	17.5–19.4°C
November	3%	21%	7%	16%	11.9–14.8°C
December	<1%	17%	5%	11%	6.3–9.2°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.

1951Each stripe is one year’s mean temperature against the 44-year average. Warmest: 2025. Coolest: 1984.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2110696
NOAA station: JA000047585 · MIYAKO
Station distance: 9.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 15 usable years
Daylight: Calculated from latitude 39.57°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 18 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 MIYAKO is what differs

Miyako→Yamada→Ōtsuchi→Iwaizumi→Tanohata→Fudai→

Or put two places side by side: Tsugaruishi vs Miyako

Best time to visitTsugaruishi.

June

August

May

The whole year,without the guesswork.

Tsugaruishi runs +1.5°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Tsugaruishi.

The whole year,
without the guesswork.

Tsugaruishi runs +1.5°C
on the 1961–1990 baseline.

Nearby, measured,
and named.