Japan · 1991–2020

Best time to visit
Saikū.

May leads for comfortable weather in Saikū: typically 23.3°C by day, 15°C at night, with 152 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high23.3°C

Typical low15°C

Rain in May152 mm

Comfort

May

May · October · November

76climate match

Beach

August

August · July · September

56climate match

Outdoors

November

November · April · December

78climate match

The weakest month is February, scoring 24 against May’s 76 — days reach only 10.1°C, 14° 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

269.6° / 1.9°

Feb

2410.1° / 2.1°

Mar

3113.5° / 4.6°

Apr

5318.7° / 9.7°

May

7623.3° / 15°

Jun

5126.4° / 19.5°

Jul

3330.6° / 23.8°

Aug

3631.7° / 24.6°

Sep

3728.1° / 21.1°

Oct

6422.7° / 14.9°

Nov

5817.2° / 9.3°

Dec

3612.1° / 4.1°

Monthly climate evidence for Saikū — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 10 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	9.6°C	1.9°C	45 mm	4.7	14.3°C	10 h 04	26	Good coverage
February	10.1°C	2.1°C	63 mm	6.8	13.5°C	10 h 53	24	Good coverage
March	13.5°C	4.6°C	106 mm	9.1	13.7°C	11 h 52	31	Good coverage
April	18.7°C	9.7°C	142 mm	8.7	15.4°C	13 h 00	53	Good coverage
May	23.3°C	15°C	152 mm	9.1	18.5°C	13 h 57	76	Good coverage
June	26.4°C	19.5°C	212 mm	12.1	21.8°C	14 h 27	51	Good coverage
July	30.6°C	23.8°C	184 mm	11.9	25.4°C	14 h 15	33	Good coverage
August	31.7°C	24.6°C	142 mm	9.8	27.4°C	13 h 27	36	Good coverage
September	28.1°C	21.1°C	254 mm	12.2	25.7°C	12 h 21	37	Good coverage
October	22.7°C	14.9°C	220 mm	9.7	22.5°C	11 h 15	64	Good coverage
November	17.2°C	9.3°C	79 mm	6.9	19.6°C	10 h 19	58	Good coverage
December	12.1°C	4.1°C	54 mm	5.7	16.7°C	9 h 51	36	Good coverage

Records at TSU, 1951–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	18.3°C10 Jan 1954	-6.3°C23 Jan 1963	94 mm31 Jan 2009	141 mm2009 · driest 0 mm in 2011	73
February	22.8°C11 Feb 1962	-6.0°C8 Feb 1966	66 mm15 Feb 2021	150 mm1972 · driest 0 mm in 2026	73
March	24.1°C30 Mar 1973	-4.5°C1 Mar 1967	99 mm30 Mar 1977	219 mm1977 · driest 0 mm in 2026	74
April	31.0°C17 Apr 2016	-1.1°C3 Apr 1963	101 mm30 Apr 2014	267 mm1967 · driest 0 mm in 2025	74
May	33.9°C30 May 2015	5.0°C4 May 1957	153 mm12 May 1995	397 mm1965 · driest 0 mm in 2025	74
June	36.7°C26 Jun 1991	9.1°C1 Jun 1972	246 mm26 Jun 1961	640 mm1961 · driest 0 mm in 2025	74
July	39.1°C22 Jul 2000	14.6°C5 Jul 1966	278 mm25 Jul 1974	705 mm1974 · driest 0 mm in 2025	74
August	39.5°C5 Aug 1994	15.7°C20 Aug 1956	320 mm29 Aug 2024	590 mm2024 · driest 0 mm in 2025	72
September	37.7°C4 Sep 2010	9.1°C30 Sep 1966	248 mm11 Sep 2000	664 mm1976 · driest 0 mm in 2025	72
October	31.0°C13 Oct 1985	3.2°C31 Oct 1983	192 mm8 Oct 2009	413 mm2004 · driest 0 mm in 2025	73
November	25.2°C9 Nov 1965	-1.4°C23 Nov 1966	188 mm13 Nov 1993	217 mm1993 · driest 0 mm in 2025	73
December	23.2°C11 Dec 2015	-6.4°C31 Dec 1967	79 mm27 Dec 2006	154 mm1968 · driest 0 mm in 2025	73

Typical days per month at TSU, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	4	1
February	0	0	3	2
March	0	0	<1	3
April	1	0	0	4
May	9	<1	0	5
June	18	3	0	5
July	27	17	0	4
August	28	23	0	3
September	24	7	0	5
October	6	0	0	4
November	0	0	0	2
December	0	0	<1	1

How often, not how much — every day in TSU’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%	17%	5%	12%	7.8–10.4°C
February	<1%	23%	8%	22%	8.1–11.5°C
March	1%	31%	13%	33%	11.5–14.4°C
April	22%	36%	18%	43%	16.9–19.6°C
May	58%	36%	18%	42%	21.5–24.0°C
June	58%	43%	22%	61%	24.7–27.1°C
July	62%	39%	18%	44%	27.9–31.8°C
August	67%	33%	15%	43%	29.7–32.5°C
September	59%	42%	21%	53%	25.7–29.1°C
October	54%	32%	15%	33%	20.9–23.4°C
November	10%	23%	9%	18%	15.7–17.9°C
December	0%	18%	5%	11%	10.0–12.9°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.

1951Each stripe is one year’s mean temperature against the 42-year average. Warmest: 2025. Coolest: 1981.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 1853230
NOAA station: JA000047651 · TSU
Station distance: 24.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 16 usable years
Daylight: Calculated from latitude 34.53°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 10 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 TSU is what differs

Tsu→Matsusaka→Ise→Kameyama→Hisai-motomachi→Kawage→

Or put two places side by side: Saikū vs Tsu

Best time to visitSaikū.

May

August

November

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Saikū.

The whole year,
without the guesswork.

Nearby, measured,
and named.