Japan · 1991–2020

Best time to visit
Shimokawaguchi.

May leads for comfortable weather in Shimokawaguchi: typically 23.5°C by day, 17.3°C at night, with 248 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high23.5°C

Typical low17.3°C

Rain in May248 mm

Comfort

May

May · November · April

57climate match

Beach

July

July · August · May

35climate match

Outdoors

December

December · November · January

63climate match

The weakest month is June, scoring 5 against May’s 57 — 512 mm of rain falls.

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

3512.3° / 4.9°

Feb

3113.3° / 5.8°

Mar

3316.2° / 8.7°

Apr

5220.1° / 13°

May

5723.5° / 17.3°

Jun

525.6° / 20.6°

Jul

2329° / 24.4°

Aug

2030.4° / 25.4°

Sep

1228.4° / 22.8°

Oct

5024.4° / 18.3°

Nov

5519.6° / 13°

Dec

4314.6° / 7.6°

Monthly climate evidence for Shimokawaguchi — 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	12.3°C	4.9°C	81 mm	4.9	19.8°C	10 h 12	35	Good coverage
February	13.3°C	5.8°C	123 mm	8.4	18.9°C	10 h 58	31	Good coverage
March	16.2°C	8.7°C	197 mm	11.7	19.1°C	11 h 53	33	Good coverage
April	20.1°C	13°C	213 mm	10.2	20.3°C	12 h 57	52	Good coverage
May	23.5°C	17.3°C	248 mm	11.3	22.1°C	13 h 49	57	Good coverage
June	25.6°C	20.6°C	512 mm	16.7	24.1°C	14 h 18	5	Good coverage
July	29°C	24.4°C	294 mm	11.4	26.6°C	14 h 07	23	Good coverage
August	30.4°C	25.4°C	261 mm	12.1	28.1°C	13 h 21	20	Good coverage
September	28.4°C	22.8°C	388 mm	14.5	27.5°C	12 h 20	12	Good coverage
October	24.4°C	18.3°C	299 mm	9.9	25.7°C	11 h 19	50	Good coverage
November	19.6°C	13°C	188 mm	9.4	23.7°C	10 h 26	55	Good coverage
December	14.6°C	7.6°C	108 mm	5.9	21.5°C	10 h 00	43	Good coverage

What has changed

Shimokawaguchi runs +1.2°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

+0.8

Mar

+2.0

Apr

+1.3

May

+1.3

Jun

+1.3

Jul

+1.0

Aug

+1.5

Sep

+1.2

Oct

+1.7

Nov

+1.1

Dec

+0.1

May daytime highs, 2011–2025. Last recorded: 22.4°C.

Records at SHIMIZU, 1951–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	22.5°C16 Jan 2002	-4.3°C16 Jan 1967	128 mm19 Jan 2012	243 mm1972 · driest 0 mm in 2011	75
February	22.5°C20 Feb 2024	-5.0°C26 Feb 1981	157 mm27 Feb 1956	329 mm1985 · driest 0 mm in 2026	75
March	25.2°C15 Mar 2022	-3.4°C4 Mar 1977	149 mm11 Mar 1998	415 mm1983 · driest 26 mm in 2013	75
April	26.9°C25 Apr 1998	3.2°C1 Apr 1972	148 mm8 Apr 1952	452 mm2006 · driest 0 mm in 2025	75
May	31.3°C27 May 2007	9.5°C3 May 1991	228 mm23 May 1971	508 mm2011 · driest 0 mm in 2025	74
June	31.7°C30 Jun 2007	14.6°C5 Jun 1951	343 mm9 Jun 2024	947 mm1954 · driest 0 mm in 2025	74
July	35.2°C21 Jul 2004	17.4°C4 Jul 1979	284 mm28 Jul 1973	696 mm2007 · driest 0 mm in 2025	75
August	37.2°C16 Aug 2024	20.7°C6 Aug 1981	421 mm4 Aug 1980	973 mm1980 · driest 0 mm in 2025	74
September	33.8°C2 Sep 1994	14.0°C27 Sep 1987	300 mm1 Sep 1974	788 mm1990 · driest 0 mm in 2025	74
October	31.3°C1 Oct 2021	7.3°C25 Oct 1982	341 mm16 Oct 1987	844 mm2017 · driest 0 mm in 2025	74
November	27.7°C2 Nov 2024	2.4°C30 Nov 1985	151 mm8 Nov 1989	417 mm2003 · driest 0 mm in 2025	74
December	23.9°C15 Dec 2023	-2.0°C17 Dec 1965	144 mm23 Dec 1972	196 mm1972 · driest 0 mm in 2025	74

Typical days per month at SHIMIZU, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	<1	2
February	0	0	<1	3
March	0	0	<1	5
April	<1	0	0	5
May	6	<1	0	5
June	17	<1	0	8
July	28	10	0	5
August	29	19	0	5
September	26	6	0	6
October	12	0	0	5
November	<1	0	0	4
December	0	0	0	2

How often, not how much — every day in SHIMIZU’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%	21%	9%	18%	10.5–13.4°C
February	1%	30%	15%	35%	10.7–14.8°C
March	5%	37%	20%	45%	14.3–17.1°C
April	30%	42%	24%	56%	18.6–20.9°C
May	58%	42%	24%	54%	21.9–24.0°C
June	52%	51%	32%	68%	24.2–26.2°C
July	63%	38%	21%	44%	27.4–29.9°C
August	63%	38%	19%	48%	28.7–31.3°C
September	57%	45%	25%	59%	26.6–29.3°C
October	63%	34%	19%	37%	22.6–25.1°C
November	30%	28%	14%	26%	18.0–20.8°C
December	2%	21%	9%	14%	12.5–16.0°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 58-year average. Warmest: 1998. Coolest: 1984.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 1852287
NOAA station: JA000047898 · SHIMIZU
Station distance: 17.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 15 usable years
Daylight: Calculated from latitude 32.78°, 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 SHIMIZU is what differs

Shimoda→Tosashimizu→Tsuro→Shimonokae→Shimizu→Saga→

Or put two places side by side: Shimokawaguchi vs Shimoda

Best time to visitShimokawaguchi.

May

July

December

The whole year,without the guesswork.

Shimokawaguchi runs +1.2°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Shimokawaguchi.

The whole year,
without the guesswork.

Shimokawaguchi runs +1.2°C
on the 1961–1990 baseline.

Nearby, measured,
and named.