Kashiba weather in September

In September, Kashiba sees average daytime highs of 28°C and overnight lows near 19°C, with 173 mm of rain across 13.2 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 30°C in the first days to 25°C by the end. The sky is clear or mostly clear about 29% 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 Kashiba's 9th-clearest and 9th-windiest month. For the whole year in context, see Kashiba's year-round climate.

Daytime high
28°
3rd warmest
Overnight low
19°
10th coldest
Rainfall
173 mm
13.2 wet days
Daylight
12 h 12 min
5:45 AM – 5:58 PM
Cloud cover
63%
9th clearest
Wind
7 km/h
9th windiest
Solar energy
4.1 kWh/m²
Travel score
5.6
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 30°C in the first days to 25°C by the end.

A typical September day in Kashiba reaches about 28°C in the afternoon and slips back to 19°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 31°C. Set against its neighbours, September runs about 4°C cooler than August and about 6°C warmer than October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13022
23022
33022
43022
53022
62921
72921
82921
92921
102921
112920
122820
132820
142820
152820
162820
172719
182719
192719
202719
212618
222618
232618
242618
252618
262517
272517
282517
292517
302516

How September really feels in Kashiba

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.

Kashiba 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 / 708.92.59.91.2
Feb / 769.22.410.71.6
Mar13° / 12412.71.311.73.2
Apr18° / 12511.40.112.85.5
May23° / 13°14511.5013.86.5
Jun26° / 18°22114.8014.35.5
Jul30° / 23°19516.4014.14.3
Aug31° / 23°12613.6013.33.9
Sep28° / 19°17313.2012.25.6
Oct22° / 13°17010.7011.16.6
Nov16° / 908.2010.25.2
Dec10° / 708.519.72.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% 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 56%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14456
24555
34555
44555
54555
64555
74555
84555
94555
104456
114456
124456
134456
144555
154456
164357
174357
184357
194258
204258
214258
224357
234357
244456
254357
264456
274456
284456
294456
304555

Chance of precipitation in September

Any precipitation

Kashiba gets around 173 mm of rain over 13.2 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 44% and peaks near 48% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
146
247
347
448
548
648
747
847
946
1046
1145
1244
1344
1443
1542
1642
1741
1841
1941
2041
2141
2242
2342
2442
2542
2643
2743
2843
2943
3043

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 48% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
116173937
217183936
317183935
417193834
518203833
628213831
729223730
829233728
9310243627
10310253626
11411263524
12412273423
13513273322
14614283220
15715283119
16717293017
17818292916
18919292815
191020302613
201122292512
211223292411
221324292310
23152529229
24162629218
25172729207
26182829196
27192929185
28202929175
29213029164
30233028153

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

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 5:34 AM to 5:56 AM, and sunset from 6:20 PM to 5:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:346:20
212.75:356:18
312.75:366:17
412.75:366:15
512.65:376:14
612.65:386:13
712.55:396:11
812.55:396:10
912.55:406:08
1012.45:416:07
1112.45:416:05
1212.45:426:04
1312.35:436:02
1412.35:446:01
1512.25:445:59
1612.25:455:58
1712.25:465:56
1812.15:475:55
1912.15:475:53
2012.15:485:52
2112.05:495:50
2212.05:505:49
2312.05:505:48
2411.95:515:46
2511.95:525:45
2611.85:535:43
2711.85:535:42
2811.85:545:40
2911.75:555:39
3011.75:565:37

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.1 kWh/m².

For context, solar energy here swings from a low near 2.46 kWh/m² to a high of 5.41 kWh/m² in May across the year — September's 4.1 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.6Bright
34.6Bright
44.5Bright
54.5Bright
64.4Bright
74.4Bright
84.4Bright
94.3Bright
104.3Bright
114.3Bright
124.2Bright
134.2Bright
144.2Bright
154.1Bright
164.1Bright
174.1Bright
184.0Bright
194.0Bright
204.0Moderate
213.9Moderate
223.9Moderate
233.9Moderate
243.8Moderate
253.8Moderate
263.8Moderate
273.7Moderate
283.7Moderate
293.7Moderate
303.7Moderate
Planning a trip in September

Hazard calendar for Kashiba

In seasonPeak

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

Kashiba 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 Kashiba?

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

5.6
Sightseeing
3rd-best month of the year
6.1
Beach & pool
1st-best month of the year

September is a reasonable time to visit Kashiba for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Kashiba in September

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

In September, Kashiba sees daytime highs around 28°C and nights near 19°C. Pack light clothes. Worth having: rain gear. About 13 days see rain.

light clothesrain gear

Sea temperature near Kashiba in September

The nearest coast averages about 26°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 32 km away) is warmest in August at about 27°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 6 to Nov 11 — about 5.2 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar13Bracing
Apr15Cool
May18Cool
Jun21Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov20Cool
Dec17Cool

UV index in Kashiba 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 Kashiba peaks around June 23 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJun 23UV 10Dec 23UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7Very high
May9Very high
Jun10Very high
Jul10Very high
Aug8Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Kashiba 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 Kashiba is worst in April — around 23 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (October, 13 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1423 µg/m³Oct 1713 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb17Moderate
Mar22Moderate
Apr23Moderate
May22Moderate
Jun19Moderate
Jul17Moderate
Aug18Moderate
Sep14Moderate
Oct13Moderate
Nov14Moderate
Dec13Moderate
Location & terrain

Where is Kashiba?

Kashiba sits at 34.5°N, 135.7°E, 58 m above sea level, in Japan. The nearest listed city is Hikiso, 3.0 km away.

Topography around Kashiba

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

Within 3 km, the terrain around Kashiba has significant variations in elevation — a maximum elevation change of 471 m around an average of 89 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,131 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,882 m.

The land around Kashiba is covered by artificial surfaces (61%) and trees (22%) within 3 km, trees (43%) and artificial surfaces (39%) within 16 km, and trees (67%) within 80 km.

3 km
471 m
16 km
1,131 m
80 km
1,882 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Hikiso 3.0 km · Kanmaki 3.0 km · Yamato-Takada 4.0 km · Takatsukadai 6.0 km · Katsuragi 6.0 km · Tatsuno-kita 7.0 km · Oji 7.0 km · Kanō 8.0 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 Kashiba (34.5347°, 135.7092°, elevation 58 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).