Japan · 1991–2020

Best time to visit
Susaki.

May leads for comfortable weather in Susaki: typically 22.9°C by day, 13.9°C at night, with 146 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high22.9°C

Typical low13.9°C

Rain in May146 mm

Comfort

May

May · July · April

73climate match

Beach

July

July · August · September

68climate match

Outdoors

April

April · November · May

63climate match

The weakest month is February, scoring 21 against May’s 73 — days reach only 11.8°C, 12° below the 24°C the score treats as ideal, and nights drop to 0.8°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

2311.3° / 0.3°

Feb

2111.8° / 0.8°

Mar

2314.6° / 4.4°

Apr

4719.1° / 8.7°

May

7322.9° / 13.9°

Jun

4625.5° / 17.9°

Jul

4829.1° / 22.2°

Aug

4730.9° / 23.5°

Sep

3927.9° / 19.8°

Oct

4323.2° / 14.1°

Nov

4418.4° / 8.4°

Dec

3213.8° / 2.8°

Monthly climate evidence for Susaki — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 15 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	11.3°C	0.3°C	76 mm	5.8	17.1°C	10 h 02	23	Good coverage
February	11.8°C	0.8°C	98 mm	7.5	16.0°C	10 h 52	21	Good coverage
March	14.6°C	4.4°C	172 mm	11.2	16.2°C	11 h 52	23	Good coverage
April	19.1°C	8.7°C	171 mm	10	17.2°C	13 h 01	47	Good coverage
May	22.9°C	13.9°C	146 mm	9.2	19.4°C	13 h 59	73	Good coverage
June	25.5°C	17.9°C	280 mm	13.6	21.6°C	14 h 30	46	Good coverage
July	29.1°C	22.2°C	164 mm	8.1	23.9°C	14 h 17	48	Good coverage
August	30.9°C	23.5°C	117 mm	6.9	26.1°C	13 h 28	47	Good coverage
September	27.9°C	19.8°C	255 mm	12.3	25.6°C	12 h 21	39	Good coverage
October	23.2°C	14.1°C	344 mm	13	23.6°C	11 h 14	43	Good coverage
November	18.4°C	8.4°C	176 mm	9.9	21.5°C	10 h 17	44	Good coverage
December	13.8°C	2.8°C	96 mm	6.9	19.1°C	9 h 49	32	Good coverage

What has changed

Susaki runs +1.3°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

+0.5

Feb

+0.9

Mar

+2.4

Apr

+1.3

May

+1.4

Jun

+1.5

Jul

+1.9

Aug

+1.4

Sep

—

Oct

+1.2

Nov

+1.0

Dec

+0.4

May daytime highs, 2012–2025. Last recorded: 22.1°C.

Records at TATEYAMA, 1969–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	23.2°C27 Jan 1969	-6.7°C31 Jan 1985	100 mm30 Jan 1979	207 mm2020 · driest 0 mm in 2026	58
February	22.7°C14 Feb 2009	-6.5°C3 Feb 1996	122 mm9 Feb 1985	222 mm1985 · driest 0 mm in 2026	58
March	24.9°C30 Mar 1998	-5.7°C8 Mar 1971	120 mm27 Mar 1976	328 mm1977 · driest 18 mm in 1973	58
April	26.4°C20 Apr 1998	-1.2°C1 Apr 2001	121 mm5 Apr 2010	325 mm2010 · driest 0 mm in 2025	58
May	31.1°C29 May 2026	4.3°C2 May 1993	131 mm10 May 1992	249 mm1986 · driest 0 mm in 2025	57
June	34.2°C27 Jun 1991	8.5°C4 Jun 2004	137 mm18 Jun 2024	402 mm2008 · driest 0 mm in 2025	57
July	36.3°C21 Jul 2004	9.3°C2 Jul 1976	219 mm13 Jul 1999	428 mm2020 · driest 0 mm in 2025	58
August	36.6°C3 Aug 1994	15.2°C27 Aug 1975	175 mm15 Aug 2003	343 mm1989 · driest 0 mm in 2025	56
September	34.5°C2 Sep 2023	10.0°C23 Sep 2003	315 mm22 Sep 1996	510 mm1982 · driest 0 mm in 2025	56
October	30.9°C1 Oct 2023	4.0°C30 Oct 1976	233 mm28 Oct 1973	641 mm2019 · driest 0 mm in 2025	57
November	26.2°C1 Nov 1977	-1.5°C30 Nov 1976	135 mm30 Nov 2003	453 mm2003 · driest 0 mm in 2025	57
December	23.5°C4 Dec 2018	-6.4°C25 Dec 1973	184 mm26 Dec 2006	212 mm2006 · driest 0 mm in 2025	57

Typical days per month at TATEYAMA, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	8	2
February	0	0	7	2
March	0	0	2	5
April	<1	0	<1	4
May	6	0	0	4
June	17	<1	0	5
July	27	12	0	4
August	29	23	0	2
September	23	8	0	5
October	7	<1	0	5
November	<1	0	0	3
December	0	0	3	2

How often, not how much — every day in TATEYAMA’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%	23%	9%	17%	9.9–12.5°C
February	<1%	29%	12%	31%	10.3–13.2°C
March	3%	38%	20%	42%	12.8–16.1°C
April	26%	39%	19%	45%	17.7–20.2°C
May	61%	36%	17%	37%	21.5–23.9°C
June	57%	44%	23%	60%	23.9–26.3°C
July	71%	30%	15%	27%	26.9–31.0°C
August	76%	25%	11%	29%	29.3–32.1°C
September	62%	40%	20%	50%	26.3–29.4°C
October	52%	41%	22%	48%	21.7–24.1°C
November	20%	34%	15%	40%	16.8–19.7°C
December	<1%	22%	9%	17%	12.3–14.9°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.

1969Each stripe is one year’s mean temperature against the 22-year average. Warmest: 2025. Coolest: 1984.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 1851389
NOAA station: JA000047672 · TATEYAMA
Station distance: 10.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 15 usable years
Daylight: Calculated from latitude 34.97°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 15 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 TATEYAMA is what differs

Tateyama→Minamibōsō→Wada→Motona→Higashiemi→Tenjingō→

Or put two places side by side: Susaki vs Tateyama

Best time to visitSusaki.

May

July

April

The whole year,without the guesswork.

Susaki runs +1.3°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Susaki.

The whole year,
without the guesswork.

Susaki runs +1.3°C
on the 1961–1990 baseline.

Nearby, measured,
and named.