AizuwakamatsuJapan · Asia · September

September climate

CityCulture

September in Aizuwakamatsu

Japan · Asia

Warm days. Heavier storm-season rain is the main drawback.

Some tradeoffs

Late

Daytime high

78°F

Lows around 66°F

Rain

Frequent rain

Sun

5 h/day

Air feel

Humid

When to visit

Month-by-month fit

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Temperature

Pleasant by day, mild at night.

78°Ftypical September high

Typical range

Precipitation

Rain is frequent. About 14 wet days this month.

47%wet-day frequency

Precip amountWet-day chanceSnowfall

Sunshine

Sunshine is limited, with cloud often dominating.

4.9 hSeptember sunshine

Heat & humidity by month

Warm days, with humid periods.

56%September Heat feel

Easy airWarm airHot airHumid airVery humid air

Hourly temperature pattern

In September, afternoons feel about 79° and nights feel near 71°.

FreezingVery coldColdCoolComfortableWarmHotNight hours

Clear sky

Mostly cloudy skies this month.

23%September Clear sky

Clear skyCloud

Wind pattern

Calm winds are typical in September.

4 mphSeptember Calm

More detailIncludes daypart comfort

Typical September day

September late afternoons are around 76°F, easing to about 71°F in early evening.

Avg temp Typical range

Morning73°F

Feels 75°F

Rain27%

Cloud74%

Humid airModerate

Sun intensityModerate

Midday77°F

Feels 79°F

Rain29%

Cloud72%

Humid airModerate

Sun intensityModerate

Late afternoon76°F

Feels 79°F

Rain25%

Cloud69%

Humid airHigh

Sun intensityLow

Early evening71°F

Feels 74°F

Rain18%

Cloud71%

Humid airHigh

Sun intensityMinimal

Best window

Data table

View month-by-month numbers

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	39	29	3.9	18	2.5	81
Feb	40	29	3.0	16	3.5	78
Mar	48	35	4.1	16	4.8	74
Apr	61	44	3.9	12	5.8	71
May	71	54	3.9	12	6.5	73
Jun	77	63	4.8	13	5.8	78
Jul	84	71	6.7	17	5.3	82
Aug	86	73	5.6	15	6.3	82
Sep	78	66	5.5	14	4.9	83
Oct	67	54	4.7	11	4.0	82
Nov	56	43	3.3	14	3.0	81
Dec	44	34	3.9	18	2.2	82

Similar climates

Want a side-by-side climate view? Compare Aizuwakamatsu with Anshun.

Climate data notePlanning guidance, not a forecast

Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.

Sunshine: reviewed station-normal observations.

Local microclimates can vary by beach, neighborhood, trail, or elevation.

Last updated: Jul 31, 2026

Data & methodology

Month

High°F

Low°F

Rainin

Wet days

Sunh

Humidity%

Jan

3.9

2.5

Feb

3.0

3.5

Mar

4.1

4.8

Apr

3.9

5.8

May

3.9

6.5

Jun

4.8

5.8

Jul

6.7

5.3

Aug

5.6

6.3

Sep

5.5

4.9

Oct

4.7

4.0

Nov

3.3

3.0

Dec

3.9

2.2

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	39	29	3.9	18	2.5	81
Feb	40	29	3.0	16	3.5	78
Mar	48	35	4.1	16	4.8	74
Apr	61	44	3.9	12	5.8	71
May	71	54	3.9	12	6.5	73
Jun	77	63	4.8	13	5.8	78
Jul	84	71	6.7	17	5.3	82
Aug	86	73	5.6	15	6.3	82
Sep	78	66	5.5	14	4.9	83
Oct	67	54	4.7	11	4.0	82
Nov	56	43	3.3	14	3.0	81
Dec	44	34	3.9	18	2.2	82

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	39	29	3.9	18	2.5	81
Feb	40	29	3.0	16	3.5	78
Mar	48	35	4.1	16	4.8	74
Apr	61	44	3.9	12	5.8	71
May	71	54	3.9	12	6.5	73
Jun	77	63	4.8	13	5.8	78
Jul	84	71	6.7	17	5.3	82
Aug	86	73	5.6	15	6.3	82
Sep	78	66	5.5	14	4.9	83
Oct	67	54	4.7	11	4.0	82
Nov	56	43	3.3	14	3.0	81
Dec	44	34	3.9	18	2.2	82

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	39	29	3.9	18	2.5	81
Feb	40	29	3.0	16	3.5	78
Mar	48	35	4.1	16	4.8	74
Apr	61	44	3.9	12	5.8	71
May	71	54	3.9	12	6.5	73
Jun	77	63	4.8	13	5.8	78
Jul	84	71	6.7	17	5.3	82
Aug	86	73	5.6	15	6.3	82
Sep	78	66	5.5	14	4.9	83
Oct	67	54	4.7	11	4.0	82
Nov	56	43	3.3	14	3.0	81
Dec	44	34	3.9	18	2.2	82

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	39	29	3.9	18	2.5	81
Feb	40	29	3.0	16	3.5	78
Mar	48	35	4.1	16	4.8	74
Apr	61	44	3.9	12	5.8	71
May	71	54	3.9	12	6.5	73
Jun	77	63	4.8	13	5.8	78
Jul	84	71	6.7	17	5.3	82
Aug	86	73	5.6	15	6.3	82
Sep	78	66	5.5	14	4.9	83
Oct	67	54	4.7	11	4.0	82
Nov	56	43	3.3	14	3.0	81
Dec	44	34	3.9	18	2.2	82

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	39	29	3.9	18	2.5	81
Feb	40	29	3.0	16	3.5	78
Mar	48	35	4.1	16	4.8	74
Apr	61	44	3.9	12	5.8	71
May	71	54	3.9	12	6.5	73
Jun	77	63	4.8	13	5.8	78
Jul	84	71	6.7	17	5.3	82
Aug	86	73	5.6	15	6.3	82
Sep	78	66	5.5	14	4.9	83
Oct	67	54	4.7	11	4.0	82
Nov	56	43	3.3	14	3.0	81
Dec	44	34	3.9	18	2.2	82

Month	High°F	Low°F	Rainin	Wet days	Sunh	Humidity%
Jan	39	29	3.9	18	2.5	81
Feb	40	29	3.0	16	3.5	78
Mar	48	35	4.1	16	4.8	74
Apr	61	44	3.9	12	5.8	71
May	71	54	3.9	12	6.5	73
Jun	77	63	4.8	13	5.8	78
Jul	84	71	6.7	17	5.3	82
Aug	86	73	5.6	15	6.3	82
Sep	78	66	5.5	14	4.9	83
Oct	67	54	4.7	11	4.0	82
Nov	56	43	3.3	14	3.0	81
Dec	44	34	3.9	18	2.2	82