Japan · 1991–2020

Best time to visit
Adachi

For Adachi, May has the most comfortable weather in our climate comparison. Typical daytime highs are 23.6°C, nights average 15.4°C, and rainfall totals about 141 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.

Best all-round monthMay

Typical daytime high23.6°C

Typical night-time low15.4°C

May rainfall141 mm

Overall comfort

May

Other strong months: October and April

78/100 weather score

Beach weather

July

Other strong months: August and June

55/100 weather score

Outdoor sightseeing

November

Other strong months: April and December

73/100 weather score

Make the answer personal

Choose the weather
that suits you.

Set the daytime temperature and rainfall you are comfortable with. We will show only the months that meet every choice, using the measured 1991–2020 averages below.

Daytime high: at least 18°CDaytime high: at most 28°CMonthly rain: no more than 150 mmWet days: no more than 10

1 month fits your choices for Adachi

May23.6°C day · 141 mm rain · 9.2 wet days

The lowest comfort score is 28 out of 100. January and February share that score. In January, that is mainly because days reach only 10.1°C, 14° below the 24°C the score treats as ideal.

Quick answers

Planning a trip to Adachi?

These answers come from the same measured monthly climate record shown on this page.

When is the best time to visit Adachi?

May is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 23.6°C and 141 mm of rain.

What is the hottest month in Adachi?

August is hottest in this record, with a typical daytime high of 31.4°C and a night-time low of 24.5°C.

Which month has the least rain?

January has the lowest monthly rainfall total at 49 mm.

Is this a weather forecast?

No. These are long-term measured averages from 1991–2020. Check a current forecast before you travel.

Month by month

See how the weather
changes through the year.

The bars combine daytime temperature, night-time temperature and rainfall. The figures are measured historical averages, not a forecast for a particular trip.

2810.1° / 1.9°

2810.9° / 2.6°

3314.2° / 5.5°

5419.4° / 10.4°

7823.6° / 15.4°

5426.1° / 19.2°

3630.2° / 23.2°

3431.4° / 24.5°

3427.7° / 21°

5522.4° / 15.2°

5417.2° / 9.6°

3712.5° / 4.6°

Monthly climate evidence for Adachi — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 17 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	10.1°C	1.9°C	49 mm	3.8	13.6°C	9 h 59	28	Good coverage
February	10.9°C	2.6°C	62 mm	6.2	12.5°C	10 h 50	28	Good coverage
March	14.2°C	5.5°C	117 mm	9.4	13.2°C	11 h 51	33	Good coverage
April	19.4°C	10.4°C	153 mm	9.9	15.0°C	13 h 03	54	Good coverage
May	23.6°C	15.4°C	141 mm	9.2	17.9°C	14 h 02	78	Good coverage
June	26.1°C	19.2°C	190 mm	13.3	20.9°C	14 h 34	54	Good coverage
July	30.2°C	23.2°C	170 mm	13.6	23.4°C	14 h 21	36	Good coverage
August	31.4°C	24.5°C	178 mm	8.1	25.9°C	13 h 30	34	Good coverage
September	27.7°C	21°C	268 mm	14.3	24.7°C	12 h 22	34	Good coverage
October	22.4°C	15.2°C	264 mm	10.6	21.6°C	11 h 13	55	Good coverage
November	17.2°C	9.6°C	106 mm	7.8	18.9°C	10 h 14	54	Good coverage
December	12.5°C	4.6°C	63 mm	5.6	16.0°C	9 h 45	37	Good coverage

Records at TOKYO, 1951–2025
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	22.6°C27 Jan 1969	-6.3°C28 Jan 1954	95 mm31 Jan 2009	145 mm1964 · driest 0 mm in 1963	74
February	24.5°C11 Feb 1962	-4.8°C20 Feb 1952	84 mm15 Feb 2014	157 mm2014 · driest 4 mm in 2000	74
March	25.3°C10 Mar 2013	-4.4°C4 Mar 1958	83 mm23 Mar 1986	221 mm2018 · driest 10 mm in 1973	74
April	28.9°C22 Apr 2004	0.3°C3 Apr 1952	178 mm27 Apr 1994	297 mm2020 · driest 28 mm in 1996	74
May	32.6°C26 May 2019	4.0°C3 May 1953	131 mm3 May 2012	400 mm1965 · driest 19 mm in 1991	74
June	36.4°C30 Jun 2022	10.3°C7 Jun 1963	226 mm28 Jun 1966	510 mm1966 · driest 37 mm in 1996	74
July	39.5°C20 Jul 2004	14.0°C2 Jul 1976	167 mm8 Jul 2000	354 mm1999 · driest 3 mm in 2001	74
August	39.1°C3 Aug 1994	15.9°C28 Aug 1953	244 mm27 Aug 1993	415 mm2024 · driest 7 mm in 2007	74
September	38.1°C3 Sep 1984	11.1°C28 Sep 1951	372 mm26 Sep 1958	671 mm1958 · driest 5 mm in 1962	73
October	32.6°C1 Oct 1979	5.9°C29 Oct 1958	222 mm6 Oct 2014	780 mm2004 · driest 1 mm in 1997	73
November	26.7°C1 Nov 1977	-0.7°C29 Nov 1951	113 mm20 Nov 1992	245 mm1975 · driest 11 mm in 1995	73
December	24.8°C5 Dec 2004	-4.2°C29 Dec 1952	83 mm24 Dec 1972	188 mm1968 · driest 0 mm in 1973	73

Typical days per month at TOKYO, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	2	2
February	0	0	2	2
March	<1	0	<1	4
April	2	0	0	4
May	12	<1	0	4
June	18	4	0	5
July	26	18	0	4
August	28	22	0	3
September	21	8	0	5
October	6	<1	0	5
November	0	0	0	3
December	0	0	<1	2

How often different weather occurs at TOKYO, based on its daily record
Month	Dry days reaching 20°C	Wet days	Days with heavy rain	Weeks with 3+ wet days	Typical high by year
January	<1%	16%	6%	10%	8.6–11.1°C
February	<1%	23%	8%	24%	8.8–12.0°C
March	4%	33%	15%	38%	11.9–14.9°C
April	29%	36%	16%	42%	17.4–20.3°C
May	60%	35%	17%	41%	21.6–24.6°C
June	56%	43%	19%	60%	23.8–27.1°C
July	64%	37%	15%	41%	27.2–31.8°C
August	71%	30%	13%	37%	29.5–32.8°C
September	59%	42%	19%	54%	25.5–29.1°C
October	51%	35%	19%	36%	20.5–23.0°C
November	14%	25%	10%	23%	15.6–17.9°C
December	<1%	16%	6%	9%	11.0–13.5°C

A dry day reaching 20°C records under 1 mm of rain. A wet day records at least 1 mm, while a heavy-rain day records at least 10 mm. The weekly figure is the share of seven-day periods containing three or more wet days. The final column shows the middle 80% of average daytime highs recorded for that month in individual years; a wider range means conditions have varied more from one year to another.

1951Each stripe is one year’s mean temperature against the 45-year average. Warmest: 1999. Coolest: 1965.2007

The evidence behind this page

Where these figures
come from.

Place identity: GeoNames 10987897
NOAA station: JA000047662 · TOKYO
Station distance: 9.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 16 usable years
Daylight: Calculated from latitude 35.76°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 17 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.

Next step

Choose your month.
Then plan the details.

The weather comparison for Adachi is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.

How travel partnerships will work

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