Japan · 1991–2020

Best time to visit
Suginami.

June leads for comfortable weather in Suginami: typically 24.7°C by day, 16.6°C at night, with 156 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high24.7°C

Typical low16.6°C

Rain in June156 mm

Comfort

June

June · May · September

69climate match

Beach

August

August · July · September

69climate match

Outdoors

November

November · April · May

66climate match

The weakest month is February, scoring 17 against June’s 69 — days reach only 9.9°C, 14° below the 24°C the score treats as ideal, and nights drop to -2°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

189.2° / -2.7°

Feb

179.9° / -2°

Mar

2413.1° / 1.1°

Apr

4418° / 6.2°

May

6622.2° / 11.9°

Jun

6924.7° / 16.6°

Jul

4528.8° / 20.6°

Aug

4830° / 22°

Sep

5626.4° / 18.2°

Oct

5421.2° / 11.9°

Nov

4616.3° / 5.3°

Dec

2711.5° / -0.1°

Monthly climate evidence for Suginami — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 32 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	9.2°C	-2.7°C	41 mm	3.8	14.6°C	9 h 57	18	Good coverage
February	9.9°C	-2°C	58 mm	6.4	13.0°C	10 h 48	17	Good coverage
March	13.1°C	1.1°C	100 mm	8.9	13.1°C	11 h 51	24	Good coverage
April	18°C	6.2°C	131 mm	10.9	14.5°C	13 h 04	44	Good coverage
May	22.2°C	11.9°C	146 mm	10.9	17.0°C	14 h 04	66	Good coverage
June	24.7°C	16.6°C	156 mm	12.4	19.5°C	14 h 36	69	Good coverage
July	28.8°C	20.6°C	176 mm	13.7	21.7°C	14 h 24	45	Good coverage
August	30°C	22°C	140 mm	9	24.0°C	13 h 32	48	Good coverage
September	26.4°C	18.2°C	189 mm	12.3	23.3°C	12 h 22	56	Good coverage
October	21.2°C	11.9°C	211 mm	10	20.8°C	11 h 12	54	Good coverage
November	16.3°C	5.3°C	88 mm	7.7	18.8°C	10 h 12	46	Good coverage
December	11.5°C	-0.1°C	52 mm	5.6	16.3°C	9 h 42	27	Good coverage

Records at MITO, 1951–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	23.8°C27 Jan 1969	-11.0°C17 Jan 1970	82 mm27 Jan 2002	133 mm2002 · driest 0 mm in 2026	75
February	24.3°C14 Feb 2009	-12.7°C5 Feb 1952	86 mm15 Feb 2014	194 mm1985 · driest 0 mm in 2026	75
March	25.2°C29 Mar 2007	-8.1°C6 Mar 1977	84 mm30 Mar 1969	189 mm2018 · driest 0 mm in 2026	75
April	29.3°C28 Apr 2015	-3.5°C6 Apr 1965	116 mm29 Apr 1971	231 mm2010 · driest 0 mm in 2025	75
May	33.4°C26 May 2019	-0.1°C3 May 1953	124 mm25 May 1997	346 mm2012 · driest 0 mm in 2025	75
June	36.2°C25 Jun 2022	7.6°C3 Jun 1958	226 mm28 Jun 1966	490 mm1961 · driest 0 mm in 2025	75
July	38.4°C5 Jul 1997	7.8°C20 Jul 2026	164 mm8 Jul 2000	335 mm2006 · driest 0 mm in 2025	75
August	38.4°C15 Aug 1996	13.4°C10 Aug 1980	244 mm4 Aug 1986	398 mm2016 · driest 0 mm in 2025	73
September	36.8°C2 Sep 2000	8.4°C28 Sep 1962	204 mm19 Sep 1991	429 mm1991 · driest 0 mm in 2025	73
October	33.1°C1 Oct 1979	0.7°C31 Oct 1984	177 mm8 Oct 1952	489 mm2004 · driest 0 mm in 2025	74
November	26.2°C1 Nov 1977	-4.2°C30 Nov 1976	169 mm20 Nov 1970	217 mm1970 · driest 0 mm in 1998	74
December	25.0°C5 Dec 2004	-7.8°C25 Dec 1973	83 mm5 Dec 1968	193 mm1968 · driest 0 mm in 2025	74

Typical days per month at MITO, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	15	1
February	0	0	13	1
March	<1	0	6	3
April	1	0	<1	4
May	7	<1	0	4
June	13	2	0	4
July	23	12	0	3
August	26	16	0	3
September	18	5	0	5
October	3	<1	0	4
November	0	0	1	3
December	0	0	10	1

How often, not how much — every day in MITO’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	<1%	16%	6%	9%	7.6–10.4°C
February	<1%	23%	7%	24%	8.0–11.5°C
March	3%	31%	12%	34%	10.8–14.1°C
April	20%	37%	15%	44%	16.2–19.0°C
May	46%	39%	17%	48%	20.5–23.3°C
June	54%	42%	17%	57%	22.2–26.2°C
July	62%	38%	13%	44%	25.5–30.7°C
August	71%	30%	12%	35%	27.8–31.9°C
September	59%	41%	19%	54%	24.2–27.7°C
October	43%	34%	17%	35%	19.5–22.0°C
November	10%	24%	9%	23%	14.9–17.2°C
December	<1%	17%	6%	9%	10.0–12.7°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 41-year average. Warmest: 2025. Coolest: 1984.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 11836117
NOAA station: JA000047629 · MITO
Station distance: 26 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 16 usable years
Daylight: Calculated from latitude 36.20°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 32 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 MITO is what differs

Mito→Tsukuba→Hitachi→Hitachi-Naka→Katsuta→Tsuchiura→

Or put two places side by side: Suginami vs Mito

Best time to visitSuginami.