Yabu weather in September

In September, Yabu sees average daytime highs of 26°C and overnight lows near 19°C, with 232 mm of rain across 15.4 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 28°C in the first days to 23°C by the end. The sky is clear or mostly clear about 19% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 48 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Yabu's 10th-clearest and 9th-windiest month. For the whole year in context, see Yabu's year-round climate.

Daytime high
26°
3rd warmest
Overnight low
19°
10th coldest
Rainfall
232 mm
15.4 wet days
Daylight
12 h 12 min
5:49 AM – 6:02 PM
Cloud cover
69%
10th clearest
Wind
9 km/h
9th windiest
Solar energy
3.89 kWh/m²
Travel score
5.7
out of 10

Yabu is city in Hyōgo Prefecture, Japan.

Density
52/km²
people per km²
Founded
2004

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 28°C in the first days to 23°C by the end.

A typical September day in Yabu reaches about 26°C in the afternoon and slips back to 19°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 30°C. Set against its neighbours, September runs about 4°C cooler than August and about 5°C warmer than October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12822
22822
32822
42822
52821
62721
72721
82721
92721
102721
112720
122620
132620
142620
152620
162619
172519
182519
192519
202519
212518
222418
232418
242418
252418
262417
272417
282317
292317
302317

How September really feels in Yabu

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.

Yabu weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 10719.710.69.90.5
Feb / 9015.58.710.70.8
Mar11° / 13015.93.311.72.4
Apr17° / 12212.10.112.95.0
May22° / 13°15612.2013.86.2
Jun25° / 18°19614.9014.35.7
Jul29° / 22°23918.2014.14.5
Aug30° / 23°17915.3013.34.4
Sep26° / 19°23215.4012.25.7
Oct20° / 13°14811.8011.16.1
Nov15° / 10113.90.110.14.1
Dec / 10717.659.71.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 63%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13664
23664
33763
43763
53664
63763
73763
83763
93664
103664
113664
123664
133664
143664
153664
163664
173565
183565
193565
203565
213565
223664
233664
243763
253862
263862
273961
284060
294060
304159

Chance of precipitation in September

Any precipitation

Yabu gets around 232 mm of rain over 15.4 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 51% and peaks near 56% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
155
255
356
456
556
656
756
856
955
1055
1154
1253
1352
1452
1551
1650
1750
1849
1949
2048
2148
2248
2348
2447
2547
2647
2747
2847
2947
3046

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 29% of days. Sticky, muggy-or-worse air turns up on roughly 52% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1021434492
2021534471
3031635461
4031735441
5041835421
6042035400
7052135380
8162236360
9162336330
10172436310
11282536290
12292636270
133102735240
143122835220
154132934200
165143033180
176153132160
186163231140
197183330130
208193328110
219203327100
221022342590
231123342480
241224342270
251326342160
261527341950
271628341840
281729341730
291930331630
302031321430

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 48 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over September. Sunrise moves from 5:37 AM to 6:00 AM, and sunset from 6:24 PM to 5:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:376:24
212.75:386:23
312.75:396:21
412.75:396:20
512.65:406:18
612.65:416:17
712.65:426:15
812.55:436:14
912.55:436:12
1012.45:446:11
1112.45:456:09
1212.45:466:08
1312.35:466:06
1412.35:476:05
1512.35:486:03
1612.25:496:02
1712.25:496:00
1812.15:505:59
1912.15:515:57
2012.15:525:56
2112.05:535:54
2212.05:535:53
2312.05:545:51
2411.95:555:50
2511.95:565:48
2611.85:565:47
2711.85:575:45
2811.85:585:44
2911.75:595:42
3011.76:005:41

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.89 kWh/m².

For context, solar energy here swings from a low near 2.05 kWh/m² to a high of 5.47 kWh/m² in May across the year — September's 3.89 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.4Bright
24.4Bright
34.3Bright
44.3Bright
54.3Bright
64.2Bright
74.2Bright
84.1Bright
94.1Bright
104.1Bright
114.0Bright
124.0Moderate
134.0Moderate
143.9Moderate
153.9Moderate
163.9Moderate
173.9Moderate
183.8Moderate
193.8Moderate
203.8Moderate
213.8Moderate
223.7Moderate
233.7Moderate
243.7Moderate
253.6Moderate
263.6Moderate
273.6Moderate
283.6Moderate
293.6Moderate
303.5Moderate
Planning a trip in September

Hazard calendar for Yabu

In seasonPeak

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

Yabu 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 Yabu?

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

5.7
Sightseeing
3rd-best month of the year
5.3
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Yabu for sightseeing.

What to pack for Yabu in September

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

In September, Yabu sees daytime highs around 26°C and nights near 19°C. Pack rain gear. Worth having: light clothes. About 15 days see rain.

rain gearlight clothes

Sea temperature near Yabu 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 26 km away) is warmest in August at about 27°C and coldest in March near 12°C.

It's comfortable for a long swim from Jun 13 to Nov 7 — about 4.9 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb12Bracing
Mar12Bracing
Apr14Bracing
May17Cool
Jun20Refreshing
Jul24Warm
Aug27Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Yabu in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Yabu peaks around July 16 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highModerateJul 16UV 10Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun9Very high
Jul10Extreme
Aug9Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Yabu 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 Yabu is worst in April — around 22 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1622 µg/m³Oct 1811 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb16Moderate
Mar21Moderate
Apr22Moderate
May21Moderate
Jun18Moderate
Jul17Moderate
Aug17Moderate
Sep13Moderate
Oct11Good
Nov12Moderate
Dec12Good
Location & terrain

Where is Yabu?

Yabu sits at 35.4°N, 134.8°E, 40 m above sea level, in Japan. The nearest listed city is Wadayama, 13 km away.

Topography around Yabu

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

Within 3 km, the terrain around Yabu has significant variations in elevation — a maximum elevation change of 441 m around an average of 146 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,133 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,487 m.

The land around Yabu is covered by trees (76%) within 3 km, trees (88%) within 16 km, and trees (61%) and water (30%) within 80 km.

3 km
441 m
16 km
1,133 m
80 km
1,487 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Wadayama 13 km · Toyooka 16 km · Kasumi 28 km · Yotsutsuji 33 km · Fukuchiyama 33 km · Kyōtango 33 km · Tamba 35 km · Tanba 36 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 Yabu (35.403°, 134.7712°, elevation 40 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).