Kisarazu weather in October

In October, Kisarazu sees average daytime highs of 21°C and overnight lows near 16°C, with 251 mm of rain across 14.4 wet days and about 11.1 hours of daylight. It is the 5th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 19°C by the end. The sky is clear or mostly clear about 33% of the time in October, and the air most often feels comfortable.

Daylight stretches from about 11 h 36 min at the start of October to 10 h 36 min by month's end. Set against the rest of the year, October is Kisarazu's 6th-clearest and 7th-windiest month. For the whole year in context, see Kisarazu's year-round climate.

Daytime high
21°
5th warmest
Overnight low
16°
8th coldest
Rainfall
251 mm
14.4 wet days
Daylight
11 h 06 min
5:53 AM – 4:58 PM
Cloud cover
60%
6th clearest
Wind
14 km/h
7th windiest
Solar energy
2.94 kWh/m²
Travel score
5.8
out of 10

Kisarazu is city in Chiba Prefecture, Japan.

Density
980/km²
people per km²
Founded
1942

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 23°C in the first days to 19°C by the end.

A typical October day in Kisarazu reaches about 21°C in the afternoon and slips back to 16°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 23°C. Set against its neighbours, October runs about 5°C cooler than September and about 5°C warmer than November.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12319
22319
32319
42219
52218
62218
72218
82218
92218
102218
112117
122117
132117
142117
152117
162116
172016
182016
192016
202016
212016
222015
231915
241915
251915
261915
271915
281914
291914
301814
311814

How October really feels in Kisarazu

Once humidity and wind are folded in, October 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

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

Kisarazu weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 877.90.79.91.8
Feb / 828.71.110.71.9
Mar12° / 149130.511.73.0
Apr16° / 11°13812.9012.94.8
May20° / 16°14912.1013.85.9
Jun23° / 19°18914.3014.35.8
Jul27° / 23°15512.9014.15.8
Aug28° / 24°11811.5013.35.6
Sep25° / 22°20714.8012.25.8
Oct21° / 16°25114.4011.15.8
Nov16° / 11°12611.8010.14.8
Dec11° / 808.80.19.73.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 14% of October, with mostly cloudy or overcast conditions the remaining 53%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
24060
34060
44159
54159
64159
74357
84357
94357
104357
114357
124357
134456
144555
154654
164654
174753
184753
194753
204852
214852
224951
235149
245248
255248
265347
275446
285446
295545
305644
315644

Chance of precipitation in October

Any precipitation

Kisarazu gets around 251 mm of rain over 14.4 wet days in October, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 46% and peaks near 51% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
151
250
350
450
550
650
750
850
950
1050
1149
1249
1348
1448
1547
1647
1746
1846
1945
2045
2144
2244
2343
2443
2542
2641
2741
2840
2940
3039
3139

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the comfortable band about 32% of days. Sticky, muggy-or-worse air turns up on roughly 14% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
191936297
2101936286
3112037275
4122137264
5132236254
6142336243
7152435233
8162534213
9182733202
10192832182
11213031172
12223229152
13233428142
14253526121
15263625111
16283824101
1730392281
1832392171
1933402061
2035401951
2137401840
2239401740
2340391730
2442391630
2544381620
2646381520
2747371410
2849361410
2951351310
3053341210
3154331210

Wind in October

Winds average 14 km/h in October.

Across October, daily wind ranges from about 13 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 36 min at the start of October to 10 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over October. Sunrise moves from 5:40 AM to 6:07 AM, and sunset from 5:19 PM to 4:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.65:405:19
211.65:415:17
311.65:415:16
411.55:425:14
511.55:435:13
611.55:445:11
711.45:455:10
811.45:465:09
911.35:465:07
1011.35:475:06
1111.35:485:05
1211.25:495:03
1311.25:505:02
1411.25:515:01
1511.15:524:59
1611.15:534:58
1711.15:544:57
1811.05:544:55
1911.05:554:54
2010.95:564:53
2110.95:574:52
2210.95:584:51
2310.85:594:49
2410.86:004:48
2510.86:014:47
2610.76:024:46
2710.76:034:45
2810.76:044:44
2910.66:054:43
3010.66:064:42
3110.66:074:41

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 2.94 kWh/m².

For context, solar energy here swings from a low near 2.28 kWh/m² to a high of 5.2 kWh/m² in May across the year — October's 2.94 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.2Moderate
23.2Moderate
33.2Moderate
43.1Moderate
53.1Moderate
63.1Moderate
73.1Moderate
83.0Moderate
93.0Moderate
103.0Moderate
113.0Moderate
123.0Moderate
133.0Moderate
143.0Moderate
153.0Moderate
162.9Moderate
172.9Moderate
182.9Moderate
192.9Moderate
202.9Moderate
212.9Moderate
222.9Moderate
232.9Moderate
242.9Moderate
252.8Moderate
262.8Moderate
272.8Moderate
282.8Moderate
292.8Moderate
302.8Moderate
312.8Moderate
Planning a trip in October

Hazard calendar for Kisarazu

In seasonPeak

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

Kisarazu 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 October a good time to visit Kisarazu?

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

5.8
Sightseeing
2nd-best month of the year
3.3
Beach & pool
5th-best month of the year

October is a reasonable time to visit Kisarazu for sightseeing.

What to pack for Kisarazu in October

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

In October, Kisarazu sees daytime highs around 21°C and nights near 16°C. Pack rain gear. About 14 days see rain.

rain gear

Sea temperature near Kisarazu in October

The nearest coast averages about 22°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 26°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 5 to Nov 9 — about 5.2 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb13Bracing
Mar14Bracing
Apr16Cool
May18Cool
Jun21Refreshing
Jul24Refreshing
Aug26Warm
Sep25Warm
Oct22Refreshing
Nov20Cool
Dec17Cool

UV index in Kisarazu in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kisarazu peaks around August 10 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 highExtremeVery highHighModerateAug 10UV 10Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug10Extreme
Sep8Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Kisarazu in October

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Kisarazu is worst in April — around 22 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (September, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateApr 1322 µg/m³Sep 911 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb17Moderate
Mar21Moderate
Apr22Moderate
May21Moderate
Jun16Moderate
Jul12Good
Aug11Good
Sep11Good
Oct14Moderate
Nov14Moderate
Dec13Moderate
Location & terrain

Where is Kisarazu?

Kisarazu sits at 35.4°N, 139.9°E, 5 m above sea level, in Japan. The nearest listed city is Kimitsu, 7.0 km away.

Topography around Kisarazu

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

Within 3 km, the terrain around Kisarazu has only modest variations in elevation — a maximum elevation change of 75 m around an average of 13 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 380 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,656 m.

The land around Kisarazu is covered by artificial surfaces (59%) within 3 km, water (40%) and trees (32%) within 16 km, and water (45%), trees (23%) and artificial surfaces (22%) within 80 km.

3 km
75 m
16 km
380 m
80 km
1,656 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Kimitsu 7.0 km · Sodegaura 9.0 km · Futtsu 13 km · Ichihara 20 km · Kawasaki 25 km · Yokohama 26 km · Yokosuka 26 km · Kurihama 27 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 Kisarazu (35.3833°, 139.9325°, elevation 5 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).