Japan · 1991–2020

Best time to visit
Miyanoura.

April leads for comfortable weather in Miyanoura: typically 21.5°C by day, 13.5°C at night, with 347 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortApril

Typical high21.5°C

Typical low13.5°C

Rain in April347 mm

Comfort

April

April · November · October

37climate match

Beach

August

August · October · July

21climate match

Outdoors

December

December · April · February

27climate match

The weakest month is January, scoring 5 against April’s 37 — 341 mm of rain falls, and days reach only 14.6°C, 9° below the 24°C the score treats as ideal.

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

514.6° / 8.3°

Feb

1215.4° / 8.7°

Mar

1018.1° / 10.9°

Apr

3721.5° / 13.5°

May

1824.7° / 17°

Jun

527.2° / 20.8°

Jul

530.6° / 23.7°

Aug

931° / 24.3°

Sep

529° / 22.8°

Oct

3525.3° / 19.2°

Nov

3721.3° / 14.9°

Dec

1816.7° / 10.5°

Monthly climate evidence for Miyanoura — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 8 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	14.6°C	8.3°C	341 mm	17.3	20.6°C	10 h 23	5	Good coverage
February	15.4°C	8.7°C	309 mm	14.4	19.9°C	11 h 04	12	Good coverage
March	18.1°C	10.9°C	397 mm	16.8	20.4°C	11 h 54	10	Good coverage
April	21.5°C	13.5°C	347 mm	12	21.4°C	12 h 52	37	Good coverage
May	24.7°C	17°C	505 mm	14.8	23.3°C	13 h 40	18	Good coverage
June	27.2°C	20.8°C	990 mm	20.9	25.1°C	14 h 06	5	Good coverage
July	30.6°C	23.7°C	402 mm	11.7	27.6°C	13 h 56	5	Good coverage
August	31°C	24.3°C	318 mm	15.7	28.6°C	13 h 15	9	Good coverage
September	29°C	22.8°C	471 mm	15.5	27.9°C	12 h 19	5	Good coverage
October	25.3°C	19.2°C	347 mm	13.2	26.2°C	11 h 23	35	Good coverage
November	21.3°C	14.9°C	347 mm	13.7	24.2°C	10 h 35	37	Good coverage
December	16.7°C	10.5°C	311 mm	15.6	22.2°C	10 h 11	18	Good coverage

Records at YAKUSHIMA, 1953–2025
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	25.3°C31 Jan 2024	1.0°C25 Jan 2016	242 mm27 Jan 2020	605 mm1980 · driest 58 mm in 2019	61
February	26.1°C27 Feb 1954	0.7°C27 Feb 1981	254 mm26 Feb 2010	614 mm2014 · driest 88 mm in 1956	61
March	27.9°C31 Mar 2007	1.5°C6 Mar 2005	248 mm9 Mar 1980	779 mm1981 · driest 1 mm in 1991	62
April	28.9°C29 Apr 1983	6.1°C5 Apr 1962	298 mm29 Apr 2001	827 mm1983 · driest 0 mm in 1991	62
May	31.9°C17 May 2009	10.1°C5 May 1981	328 mm30 May 1977	964 mm1980 · driest 0 mm in 1976	60
June	34.7°C28 Jun 2003	13.8°C6 Jun 1993	405 mm7 Jun 1985	1227 mm2012 · driest 15 mm in 1991	61
July	35.1°C4 Jul 2005	18.3°C1 Jul 1986	257 mm8 Jul 2016	939 mm2015 · driest 12 mm in 2013	61
August	35.4°C16 Aug 2016	19.6°C31 Aug 1986	333 mm30 Aug 2004	713 mm1957 · driest 2 mm in 1998	60
September	34.7°C3 Sep 1995	15.8°C27 Sep 1987	330 mm10 Sep 1957	1113 mm1957 · driest 10 mm in 2023	60
October	31.3°C1 Oct 2015	11.0°C30 Oct 1978	240 mm6 Oct 1959	949 mm1987 · driest 24 mm in 2006	61
November	32.2°C2 Nov 2024	7.0°C15 Nov 1979	259 mm26 Nov 1997	593 mm2009 · driest 2 mm in 1990	61
December	26.6°C4 Dec 2018	2.4°C16 Dec 1985	149 mm8 Dec 2006	582 mm2002 · driest 30 mm in 2020	60

Typical days per month at YAKUSHIMA, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	0	0	7
February	0	0	6
March	<1	0	7
April	2	0	6
May	13	<1	7
June	21	4	12
July	28	20	6
August	29	23	5
September	26	9	7
October	16	<1	6
November	2	0	6
December	<1	0	6

How often, not how much — every day in YAKUSHIMA’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	2%	58%	25%	79%	12.5–15.8°C
February	4%	56%	27%	80%	13.2–17.3°C
March	13%	57%	31%	79%	16.4–19.4°C
April	38%	52%	30%	70%	20.4–22.6°C
May	51%	54%	33%	70%	23.4–25.3°C
June	39%	66%	43%	85%	26.0–28.1°C
July	59%	46%	25%	54%	29.4–31.6°C
August	49%	53%	24%	63%	29.9–32.0°C
September	49%	54%	30%	72%	27.6–29.6°C
October	55%	47%	25%	54%	23.7–26.1°C
November	34%	50%	24%	65%	19.4–22.4°C
December	8%	52%	24%	70%	14.8–17.8°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.

1955Each stripe is one year’s mean temperature against the 20-year average. Warmest: 1991. Coolest: 1984.1991

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 1856741
NOAA station: JA000047836 · YAKUSHIMA
Station distance: 10.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 15 usable years
Daylight: Calculated from latitude 30.43°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 8 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 YAKUSHIMA is what differs

Koseda→Nakanokami→Yudomari→Kurio→Koshima→Nagata→

Or put two places side by side: Miyanoura vs Koseda

Best time to visitMiyanoura.