Noshiro weather in September

In September, Noshiro sees average daytime highs of 23°C and overnight lows near 18°C, with 173 mm of rain across 13.8 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 25°C in the first days to 21°C by the end. The sky is clear or mostly clear about 24% of the time in September, and the air most often feels humid.

Daylight stretches from about 12 h 54 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Noshiro's 5th-clearest and 8th-windiest month. For the whole year in context, see Noshiro's year-round climate.

Daytime high
23°
3rd warmest
Overnight low
18°
10th coldest
Rainfall
173 mm
13.8 wet days
Daylight
12 h 18 min
5:26 AM – 5:42 PM
Cloud cover
66%
5th clearest
Wind
11 km/h
8th windiest
Solar energy
3.83 kWh/m²
Travel score
5.9
out of 10

Noshiro is city in Akita prefecture, Japan.

Density
122/km²
people per km²
Founded
2006

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 25°C in the first days to 21°C by the end.

A typical September day in Noshiro reaches about 23°C in the afternoon and slips back to 18°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 26°C. Set against its neighbours, September runs about 3°C cooler than August and about 6°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12621
22521
32521
42521
52520
62520
72520
82520
92420
102420
112419
122419
132419
142419
152319
162318
172318
182318
192318
202218
212217
222217
232217
242217
252117
262116
272116
282116
292116
302016

How September really feels in Noshiro

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Noshiro weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -1°10220.821.29.50.0
Feb / -1°8516.816.410.40.0
Mar / 10115.99.911.70.4
Apr11° / 101131.1132.5
May16° / 11°11112.3014.24.7
Jun20° / 16°10911.4014.85.9
Jul24° / 20°19914.6014.65.9
Aug26° / 22°21415.3013.65.7
Sep23° / 18°17313.8012.35.9
Oct17° / 13°15514.3010.94.9
Nov11° / 14618.32.89.82.2
Dec / 13621.814.79.20.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 61%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13664
23664
33664
43664
53763
63763
73862
83961
93961
103862
113961
123961
133961
143862
153961
163961
173961
183961
194060
204060
213961
223961
234060
243961
253961
264159
274060
284060
294159
304060

Chance of precipitation in September

Any precipitation

Noshiro gets around 173 mm of rain over 13.8 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 47% and peaks near 51% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
151
250
350
450
550
650
750
850
950
1049
1149
1249
1349
1448
1548
1647
1747
1846
1946
2045
2145
2245
2344
2444
2544
2645
2745
2845
2945
3045

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the humid band about 28% of days. Sticky, muggy-or-worse air turns up on roughly 33% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1192340244
2192440223
31102540213
41112639203
52122739192
62132838172
72142937162
83153036152
93163135131
104183233121
115193232111
126203231101
13822322990
14923332780
151124322570
161226322360
171427322150
181628321950
191830311740
202030301640
212132301430
222333291230
232533281120
24273428920
25293527820
26313526710
27333625610
28353624510
29373622400
30393621400

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 10 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2712calm
2812calm
2912calm
3012calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 54 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over September. Sunrise moves from 5:12 AM to 5:40 AM, and sunset from 6:08 PM to 5:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.95:126:08
212.95:136:06
312.85:146:04
412.85:156:03
512.85:166:01
612.75:175:59
712.75:185:58
812.65:195:56
912.65:195:54
1012.55:205:52
1112.55:215:51
1212.45:225:49
1312.45:235:47
1412.45:245:46
1512.35:255:44
1612.35:265:42
1712.25:275:40
1812.25:285:39
1912.15:295:37
2012.15:305:35
2112.05:315:33
2212.05:325:32
2311.95:335:30
2411.95:345:28
2511.95:355:26
2611.85:365:25
2711.85:375:23
2811.75:385:21
2911.75:395:20
3011.65:405:18

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.83 kWh/m².

For context, solar energy here swings from a low near 1.58 kWh/m² to a high of 5.49 kWh/m² in June across the year — September's 3.83 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.2Bright
44.1Bright
54.1Bright
64.1Bright
74.0Bright
84.0Bright
94.0Moderate
103.9Moderate
113.9Moderate
123.9Moderate
133.9Moderate
143.8Moderate
153.8Moderate
163.8Moderate
173.8Moderate
183.7Moderate
193.7Moderate
203.7Moderate
213.7Moderate
223.6Moderate
233.6Moderate
243.6Moderate
253.6Moderate
263.5Moderate
273.5Moderate
283.5Moderate
293.5Moderate
303.4Moderate
Planning a trip in September

Hazard calendar for Noshiro

In seasonPeak

In September, Noshiro sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Noshiro sits in the Pacific typhoon belt; the season peaks July–October.

Pacific typhoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Noshiro?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.9
Sightseeing
1st-best month of the year
4.6
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Noshiro for sightseeing.

What to pack for Noshiro in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Noshiro sees daytime highs around 23°C and nights near 18°C. Pack rain gear. Worth having: light clothes. About 14 days see rain.

rain gearlight clothes

Sea temperature near Noshiro in September

The nearest coast averages about 24°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 16 km away) is warmest in August at about 25°C and coldest in March near 9°C.

It's comfortable for a long swim from Jul 1 to Oct 21 — about 3.7 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan11Bracing
Feb9Bracing
Mar9Bracing
Apr10Bracing
May13Bracing
Jun18Cool
Jul22Refreshing
Aug25Warm
Sep24Warm
Oct21Refreshing
Nov17Cool
Dec14Bracing

UV index in Noshiro in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Noshiro peaks around August 19 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighVery highHighModerateLowAug 19UV 8Dec 21UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar3Moderate
Apr6High
May8Very high
Jun8Very high
Jul5Moderate
Aug9Very high
Sep7High
Oct4Moderate
Nov2Moderate
Dec1Low

Air quality in Noshiro in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Noshiro is worst in April — around 20 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (December, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1620 µg/m³Dec 169 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb13Moderate
Mar18Moderate
Apr20Moderate
May18Moderate
Jun13Moderate
Jul12Good
Aug10Good
Sep10Good
Oct10Good
Nov9Good
Dec8Good
Location & terrain

Where is Noshiro?

Noshiro sits at 40.2°N, 140.0°E, 13 m above sea level, in Japan. The nearest listed city is Moritake, 13 km away.

Topography around Noshiro

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Noshiro.

Within 3 km, the terrain around Noshiro has only modest variations in elevation — a maximum elevation change of 42 m around an average of 10 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 519 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,616 m.

The land around Noshiro is covered by artificial surfaces (31%) and trees (27%) within 3 km, water (41%) and trees (37%) within 16 km, and trees (53%) and water (38%) within 80 km.

3 km
42 m
16 km
519 m
80 km
1,616 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Moritake 13 km · Takanosu 29 km · Kita-Akita 31 km · Tennō 35 km · Katagami 37 km · Oga 40 km · Ōdate 46 km · Akita 55 km

Japan travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
100 V · 50 / 60 Hz
Prices
≈ 65% of US
price level, 2025
GDP per capita
$35,951
2025
Happiness
6.1 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.2
per 100k, 2023
Road deaths
3.6
per 100k/yr, 2019
Income group
High
World Bank
English
Very low
EF EPI 446
Religion
Shintoism 49%Buddhism 46%other 4%Christianity 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Noshiro (40.2084°, 140.0274°, elevation 13 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).