Japan · 1991–2020

Best time to visit
Asahi.

May leads for comfortable weather in Asahi: typically 22.9°C by day, 12.4°C at night, with 121 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high22.9°C

Typical low12.4°C

Rain in May121 mm

Comfort

May

May · June · October

73climate match

Beach

June

June · August · September

48climate match

Outdoors

May

May · April · October

64climate match

The weakest month is January, scoring 5 against May’s 73 — days reach only 6.3°C, 18° below the 24°C the score treats as ideal, and 297 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

56.3° / -0.2°

Feb

57.3° / -0.4°

Mar

511.6° / 1.9°

Apr

4017.6° / 6.8°

May

7322.9° / 12.4°

Jun

6425.7° / 17.3°

Jul

2229.9° / 21.9°

Aug

2331.5° / 22.9°

Sep

4427.1° / 18.8°

Oct

5621.5° / 12.6°

Nov

1415.6° / 6.9°

Dec

59.4° / 2.1°

Monthly climate evidence for Asahi — 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	6.3°C	-0.2°C	297 mm	24.6	12.9°C	9 h 53	5	Good coverage
February	7.3°C	-0.4°C	209 mm	20.7	10.7°C	10 h 46	5	Good coverage
March	11.6°C	1.9°C	194 mm	19.1	10.0°C	11 h 51	5	Good coverage
April	17.6°C	6.8°C	143 mm	12.9	11.3°C	13 h 05	40	Good coverage
May	22.9°C	12.4°C	121 mm	10.1	15.2°C	14 h 07	73	Good coverage
June	25.7°C	17.3°C	171 mm	10.7	19.9°C	14 h 41	64	Good coverage
July	29.9°C	21.9°C	286 mm	15.5	23.8°C	14 h 28	22	Good coverage
August	31.5°C	22.9°C	256 mm	11	26.9°C	13 h 34	23	Good coverage
September	27.1°C	18.8°C	250 mm	13.4	25.4°C	12 h 22	44	Good coverage
October	21.5°C	12.6°C	191 mm	13.3	21.9°C	11 h 11	56	Good coverage
November	15.6°C	6.9°C	248 mm	19	18.7°C	10 h 08	14	Good coverage
December	9.4°C	2.1°C	322 mm	24.9	15.6°C	9 h 38	5	Good coverage

What has changed

Asahi runs +1.7°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

+1.4

Feb

+1.3

Mar

+2.5

Apr

+1.4

May

+1.9

Jun

+2.3

Jul

+2.4

Aug

+1.9

Sep

+1.7

Oct

+1.5

Nov

+1.5

Dec

+0.1

May daytime highs, 2011–2025. Last recorded: 22.1°C.

Records at TOYAMA, 1951–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	20.9°C25 Jan 1972	-9.6°C16 Jan 1977	65 mm9 Jan 1956	543 mm1963 · driest 113 mm in 1974	75
February	22.5°C25 Feb 2010	-8.9°C17 Feb 1978	57 mm17 Feb 2021	338 mm2010 · driest 62 mm in 2003	75
March	27.7°C27 Mar 2025	-6.0°C4 Mar 1977	54 mm17 Mar 2006	270 mm2014 · driest 51 mm in 2025	75
April	32.4°C19 Apr 1972	-2.2°C1 Apr 1987	78 mm29 Apr 2021	260 mm2003 · driest 0 mm in 2025	75
May	33.3°C30 May 2017	2.5°C3 May 1953	124 mm28 May 2024	273 mm2004 · driest 0 mm in 2025	74
June	37.2°C29 Jun 2022	7.7°C1 Jun 1978	151 mm25 Jun 1996	420 mm1961 · driest 0 mm in 2025	74
July	38.8°C31 Jul 1999	13.0°C5 Jul 1966	204 mm18 Jul 1964	602 mm2017 · driest 0 mm in 2025	75
August	39.5°C22 Aug 2018	14.1°C20 Aug 1956	124 mm24 Aug 2013	489 mm1976 · driest 0 mm in 2025	73
September	38.3°C1 Sep 2002	8.9°C30 Sep 1966	182 mm1 Sep 2018	610 mm2018 · driest 0 mm in 2025	73
October	32.8°C6 Oct 2018	1.9°C31 Oct 1983	105 mm21 Oct 2004	293 mm2004 · driest 0 mm in 2025	74
November	29.2°C1 Nov 1977	-2.0°C29 Nov 1983	73 mm21 Nov 2013	402 mm1985 · driest 0 mm in 2025	74
December	24.8°C4 Dec 2018	-8.5°C31 Dec 1967	89 mm26 Dec 1966	527 mm2014 · driest 0 mm in 2025	74

Typical days per month at TOYAMA, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	8	10
February	0	0	10	6
March	<1	0	4	6
April	2	<1	0	4
May	10	1	0	4
June	16	3	0	5
July	26	15	0	6
August	29	20	0	5
September	20	6	0	5
October	4	<1	0	5
November	<1	0	0	8
December	0	0	3	10

How often, not how much — every day in TOYAMA’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	0%	75%	36%	96%	3.9–7.7°C
February	<1%	69%	24%	91%	4.3–8.9°C
March	3%	55%	20%	76%	9.0–12.8°C
April	19%	43%	18%	59%	15.7–19.1°C
May	48%	36%	15%	42%	20.5–24.0°C
June	56%	42%	20%	58%	23.4–27.0°C
July	56%	44%	23%	53%	26.9–31.7°C
August	66%	34%	18%	43%	29.1–33.1°C
September	54%	46%	24%	63%	24.8–28.6°C
October	36%	46%	20%	63%	19.4–22.3°C
November	7%	57%	28%	84%	13.7–16.7°C
December	<1%	72%	36%	96%	7.3–11.2°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 43-year average. Warmest: 2025. Coolest: 1974.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 13665338
NOAA station: JA000047607 · TOYAMA
Station distance: 40.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 16 usable years
Daylight: Calculated from latitude 36.95°, 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 TOYAMA is what differs

Toyama→Uozu→Kurobe-shi→Namerikawa→Nyūzen→Gohyakkoku→

Or put two places side by side: Asahi vs Toyama

Best time to visitAsahi.

May

June

May

The whole year,without the guesswork.

Asahi runs +1.7°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Asahi.

The whole year,
without the guesswork.

Asahi runs +1.7°C
on the 1961–1990 baseline.

Nearby, measured,
and named.