Japan · 1991–2020

Best time to visit
Ashoro.

July leads for comfortable weather in Ashoro: typically 24.6°C by day, 15°C at night, with 116 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly

Typical high24.6°C

Typical low15°C

Rain in July116 mm

Comfort

July

July · August · September

79climate match

Beach

August

August · July · September

49climate match

Outdoors

June

June · May · September

73climate match

The weakest month is January, scoring 5 against July’s 79 — days reach only -1.4°C, 25° below the 24°C the score treats as ideal, and nights drop to -14°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

5-1.4° / -14°

Feb

5-0.1° / -13.6°

Mar

54.9° / -6.3°

Apr

2712.5° / 0.1°

May

5218.9° / 5.6°

Jun

6621.5° / 10.4°

Jul

7924.6° / 15°

Aug

6925.6° / 16.3°

Sep

6922.3° / 12°

Oct

4316.1° / 4.7°

Nov

128.5° / -1.7°

Dec

51° / -10°

Monthly climate evidence for Ashoro — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-1.4°C	-14°C	30 mm	4.8	9 h 18	5	Good coverage
February	-0.1°C	-13.6°C	30 mm	4.2	10 h 26	5	Good coverage
March	4.9°C	-6.3°C	51 mm	6	11 h 47	5	Good coverage
April	12.5°C	0.1°C	62 mm	7.9	13 h 20	27	Good coverage
May	18.9°C	5.6°C	95 mm	9.1	14 h 39	52	Good coverage
June	21.5°C	10.4°C	115 mm	9.9	15 h 22	66	Good coverage
July	24.6°C	15°C	116 mm	11	15 h 05	79	Good coverage
August	25.6°C	16.3°C	149 mm	10.7	13 h 57	69	Good coverage
September	22.3°C	12°C	131 mm	10.8	12 h 27	69	Good coverage
October	16.1°C	4.7°C	89 mm	7.8	10 h 57	43	Good coverage
November	8.5°C	-1.7°C	58 mm	7.2	9 h 38	12	Good coverage
December	1°C	-10°C	63 mm	6.4	9 h	5	Good coverage

What has changed

Ashoro runs +1.7°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

+1.4

Feb

+1.4

Mar

+3.0

Apr

+2.5

May

+2.0

Jun

+1.8

Jul

+3.0

Aug

+1.3

Sep

+1.9

Oct

+0.9

Nov

+1.0

Dec

+0.2

July daytime highs, 2011–2025. Last recorded: 29.7°C.

Records at OBIHIRO, 1951–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	8.0°C5 Jan 1991	-30.2°C8 Jan 1953	112 mm31 Jan 1970	135 mm1970 · driest 1 mm in 1994	75
February	14.7°C23 Feb 1967	-29.3°C4 Feb 1953	96 mm27 Feb 1972	213 mm1972 · driest 0 mm in 1998	75
March	17.9°C31 Mar 2021	-24.5°C6 Mar 1965	140 mm22 Mar 1975	279 mm1975 · driest 7 mm in 1993	75
April	31.7°C21 Apr 1998	-10.9°C1 Apr 1984	71 mm11 Apr 2000	155 mm2000 · driest 0 mm in 2025	75
May	38.8°C26 May 2019	-4.5°C2 May 1953	78 mm5 May 2012	226 mm1955 · driest 0 mm in 2025	74
June	36.0°C26 Jun 2010	0.2°C9 Jun 1954	105 mm29 Jun 1989	244 mm1974 · driest 0 mm in 2025	74
July	37.7°C24 Jul 2025	5.0°C4 Jul 1968	84 mm14 Jul 1999	260 mm1975 · driest 0 mm in 2025	75
August	37.0°C7 Aug 1994	7.3°C31 Aug 1958	146 mm5 Aug 1981	378 mm2016 · driest 0 mm in 2025	73
September	34.1°C8 Sep 2020	-0.9°C29 Sep 1969	120 mm16 Sep 1998	306 mm1994 · driest 0 mm in 2025	73
October	29.7°C1 Oct 2022	-5.2°C26 Oct 1961	94 mm19 Oct 1979	268 mm1955 · driest 0 mm in 2025	74
November	21.6°C4 Nov 1971	-17.9°C24 Nov 1953	174 mm24 Nov 1988	232 mm1972 · driest 0 mm in 1991	74
December	16.0°C2 Dec 1954	-24.0°C15 Dec 1969	78 mm1 Dec 1972	151 mm2012 · driest 0 mm in 2020	74

Typical days per month at OBIHIRO, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	15	1
February	0	0	16	<1
March	0	0	17	<1
April	<1	<1	8	1
May	3	<1	<1	3
June	8	1	0	3
July	14	4	0	3
August	16	5	0	4
September	7	<1	0	4
October	<1	0	2	3
November	0	0	11	2
December	0	0	16	2

How often, not how much — every day in OBIHIRO’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%	20%	4%	13%	-3.5–-0.3°C
February	0%	19%	3%	14%	-2.9–1.2°C
March	0%	22%	5%	16%	2.2–6.6°C
April	6%	26%	6%	23%	10.1–14.4°C
May	33%	29%	9%	28%	16.2–20.4°C
June	46%	32%	11%	39%	18.5–23.5°C
July	56%	33%	12%	38%	21.6–27.1°C
August	60%	36%	14%	45%	23.0–28.1°C
September	50%	34%	14%	36%	20.2–23.8°C
October	10%	26%	11%	22%	14.5–16.8°C
November	<1%	24%	7%	22%	6.4–9.9°C
December	0%	20%	5%	16%	-0.6–2.5°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 42-year average. Warmest: 2025. Coolest: 1953.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2130603
NOAA station: JA000047417 · OBIHIRO
Station distance: 44.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 15 usable years
Daylight: Calculated from latitude 43.24°, mid-month, sunrise to sunset including refraction. Not a station measurement.
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 OBIHIRO is what differs

Obihiro→Otofuke→Sarubetsu→Memuro-minami→Shimizu→Ikeda→

Or put two places side by side: Ashoro vs Obihiro

Best time to visitAshoro.