Yurihonjō weather in September

In September, Yurihonjō sees average daytime highs of 23°C and overnight lows near 19°C, with 185 mm of rain across 15.5 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 7th-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 25% 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 Yurihonjō's 5th-clearest and 9th-windiest month. For the whole year in context, see Yurihonjō's year-round climate.

Daytime high
23°
3rd warmest
Overnight low
19°
10th coldest
Rainfall
185 mm
15.5 wet days
Daylight
12 h 18 min
5:26 AM – 5:42 PM
Cloud cover
65%
5th clearest
Wind
15 km/h
9th windiest
Solar energy
4 kWh/m²
Travel score
5.7
out of 10

Yurihonjō is city in Akita Prefecture, Japan.

Density
63/km²
people per km²
Founded
2005

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 Yurihonjō reaches about 23°C in the afternoon and slips back to 19°C overnight — a 4°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)
12521
22521
32521
42521
52521
62521
72521
82520
92420
102420
112420
122420
132420
142419
152319
162319
172319
182319
192318
202218
212218
222218
232218
242217
252217
262117
272117
282117
292117
302116

How September really feels in Yurihonjō

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.

Yurihonjō weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -0°21426.621.59.50.0
Feb / -0°14521.816.710.50.0
Mar / 13419.48.711.70.5
Apr11° / 11114.41132.4
May16° / 11°12313.4014.14.6
Jun20° / 16°13012.2014.75.9
Jul24° / 21°20215.4014.55.8
Aug26° / 22°18715013.55.9
Sep23° / 19°18515.5012.35.7
Oct18° / 13°18516.30114.8
Nov12° / 20421.129.82.2
Dec / 25025.712.69.30.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% 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 60%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13961
24060
34060
43961
53961
64060
74060
84060
94060
104060
114060
124060
134060
144060
154060
164060
174060
184060
194060
204060
214258
224159
234258
244258
254060
264159
274159
284159
294159
304159

Chance of precipitation in September

Any precipitation

Yurihonjō gets around 185 mm of rain over 15.5 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 53% and peaks near 54% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
152
252
352
453
553
653
753
854
954
1054
1154
1254
1354
1454
1554
1654
1754
1853
1953
2052
2152
2252
2351
2451
2551
2651
2751
2851
2951
3051

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 26% of days. Sticky, muggy-or-worse air turns up on roughly 37% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1082236294
2092336284
31102337264
41112436254
51122537233
61132536223
71142636203
82152636192
92172635182
103182634162
114202733151
125212732141
136222731131
148242629121
159252728111
1611272726100
171228272490
181429272280
191630272170
201731271960
211932271750
222132271550
232333271340
242534271230
252734261030
26283526920
27303525810
28323625710
29343624610
30363623500

Wind in September

Winds average 15 km/h in September.

Across September, daily wind ranges from about 14 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze

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 6:07 PM to 5:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.95:126:07
212.95:136:05
312.85:146:03
412.85:156:02
512.75:166:00
612.75:175:58
712.65:185:57
812.65:195:55
912.65:205:54
1012.55:215:52
1112.55:225:50
1212.45:235:48
1312.45:245:47
1412.35:255:45
1512.35:265:43
1612.35:265:42
1712.25:275:40
1812.25:285:38
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 4 kWh/m².

For context, solar energy here swings from a low near 1.57 kWh/m² to a high of 5.69 kWh/m² in June across the year — September's 4 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.4Bright
34.4Bright
44.3Bright
54.3Bright
64.3Bright
74.2Bright
84.2Bright
94.2Bright
104.1Bright
114.1Bright
124.1Bright
134.0Bright
144.0Bright
154.0Moderate
164.0Moderate
173.9Moderate
183.9Moderate
193.9Moderate
203.8Moderate
213.8Moderate
223.8Moderate
233.8Moderate
243.7Moderate
253.7Moderate
263.7Moderate
273.6Moderate
283.6Moderate
293.6Moderate
303.6Moderate
Planning a trip in September

Hazard calendar for Yurihonjō

In seasonPeak

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

Yurihonjō 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 Yurihonjō?

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

5.7
Sightseeing
4th-best month of the year
4.5
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Yurihonjō for sightseeing.

What to pack for Yurihonjō in September

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

In September, Yurihonjō sees daytime highs around 23°C and nights near 19°C. Pack rain gear. Worth having: light clothes. About 16 days see rain.

rain gearlight clothes

Sea temperature near Yurihonjō in September

The nearest coast averages about 25°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 26°C and coldest in March near 9°C.

It's comfortable for a long swim from Jun 27 to Oct 24 — about 3.9 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan11Bracing
Feb10Bracing
Mar9Bracing
Apr10Bracing
May14Bracing
Jun19Cool
Jul22Refreshing
Aug26Warm
Sep25Warm
Oct21Refreshing
Nov18Cool
Dec14Bracing

UV index in Yurihonjō 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 Yurihonjō peaks around August 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighVery highHighModerateLowAug 18UV 9Jan 10UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar3Moderate
Apr6High
May8Very high
Jun7Very high
Jul6High
Aug9Very high
Sep7High
Oct5Moderate
Nov2Moderate
Dec2Low

Air quality in Yurihonjō 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 Yurihonjō is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1721 µg/m³Dec 149 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb14Moderate
Mar19Moderate
Apr21Moderate
May20Moderate
Jun15Moderate
Jul13Moderate
Aug11Good
Sep10Good
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Yurihonjō?

Yurihonjō sits at 39.4°N, 140.1°E, 4 m above sea level, in Japan. The nearest listed city is Nikaho, 17 km away.

Topography around Yurihonjō

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

Within 3 km, the terrain around Yurihonjō has only modest variations in elevation — a maximum elevation change of 164 m around an average of 30 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 603 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,211 m.

The land around Yurihonjō is covered by trees (43%) and artificial surfaces (31%) within 3 km, trees (53%) and water (34%) within 16 km, and trees (53%) and water (35%) within 80 km.

3 km
164 m
16 km
603 m
80 km
2,211 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Nikaho 17 km · Akita 37 km · Ōmagari 37 km · Daisen 38 km · Rokugō 42 km · Yokote 43 km · Yuzawa 45 km · Katagami 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 Yurihonjō (39.3895°, 140.0581°, elevation 4 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).