Niitsu-honchō weather in October

In October, Niitsu-honchō sees average daytime highs of 20°C and overnight lows near 13°C, with 146 mm of rain across 14.6 wet days and about 11 hours of daylight. It is the 6th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 18°C by the end. The sky is clear or mostly clear about 25% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of October to 10 h 24 min by month's end. Set against the rest of the year, October is Niitsu-honchō's 3rd-clearest and 7th-windiest month. For the whole year in context, see Niitsu-honchō's year-round climate.

Daytime high
20°
6th warmest
Overnight low
13°
8th coldest
Rainfall
146 mm
14.6 wet days
Daylight
11 hours
5:58 AM – 4:59 PM
Cloud cover
62%
3rd clearest
Wind
9 km/h
7th windiest
Solar energy
3.08 kWh/m²
Travel score
5.7
out of 10

Niitsu-honchō is human settlement in Japan.

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 18°C by the end.

A typical October day in Niitsu-honchō reaches about 20°C in the afternoon and slips back to 13°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 24°C. Set against its neighbours, October runs about 6°C cooler than September and about 6°C warmer than November.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12316
22316
32316
42316
52216
62215
72215
82215
92215
102115
112114
122114
132114
142114
152113
162013
172013
182013
192013
202012
211912
221912
231912
241912
251912
261811
271811
281811
291811
301811
311710

How October really feels in Niitsu-honchō

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.

Niitsu-honchō weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 17124.716.49.70.2
Feb / 1172013.110.50.4
Mar10° / 12219.36.311.71.8
Apr16° / 9213.80.612.94.4
May21° / 13°96120146.2
Jun25° / 18°11712.1014.66.3
Jul28° / 22°21415.8014.35.0
Aug30° / 23°15013.7013.54.6
Sep26° / 20°14014.3012.35.8
Oct20° / 13°14614.60115.7
Nov14° / 15618.60.4103.4
Dec / 18223.38.99.41.1

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 19% of October, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
24060
34060
44060
54159
64159
74258
84357
94456
104456
114555
124555
134555
144753
154753
164753
174753
184753
194753
204753
214753
224753
234654
244555
254555
264654
274654
284654
294654
304654
314654

Chance of precipitation in October

Any precipitation

Niitsu-honchō gets around 146 mm of rain over 14.6 wet days in October. 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%151015202531
Rain chance (%)
149
249
348
448
548
648
747
847
947
1046
1146
1245
1345
1444
1544
1644
1744
1844
1944
2045
2145
2246
2346
2447
2548
2649
2749
2850
2950
3051
3151

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 63% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1253331101
227333091
329332981
431332870
533332770
636332560
738322450
841322250
944312040
1048301840
1151291730
1254281530
1357271330
1461251220
1564241020
166623920
176822820
187220710
197419610
207618510
217916410
228115400
238314300
248413300
258612200
268711200
278810200
28909100
29918100
30918100
31927100

Wind in October

Winds average 9 km/h in October.

Across October, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 36 min at the start of October to 10 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 72 minutes over October. Sunrise moves from 5:44 AM to 6:14 AM, and sunset from 5:21 PM to 4:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.65:445:21
211.65:455:19
311.55:465:18
411.55:475:16
511.45:485:15
611.45:495:13
711.45:505:12
811.35:515:10
911.35:525:09
1011.25:535:07
1111.25:535:06
1211.25:545:04
1311.15:555:03
1411.15:565:01
1511.05:575:00
1611.05:584:59
1711.05:594:57
1810.96:004:56
1910.96:014:55
2010.86:024:53
2110.86:034:52
2210.86:044:51
2310.76:054:50
2410.76:074:48
2510.76:084:47
2610.66:094:46
2710.66:104:45
2810.56:114:44
2910.56:124:42
3010.56:134:41
3110.46:144:40

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.08 kWh/m².

For context, solar energy here swings from a low near 1.64 kWh/m² to a high of 5.6 kWh/m² in May across the year — October's 3.08 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.5Moderate
23.5Moderate
33.4Moderate
43.4Moderate
53.4Moderate
63.4Moderate
73.3Moderate
83.3Moderate
93.3Moderate
103.3Moderate
113.3Moderate
123.2Moderate
133.2Moderate
143.2Moderate
153.1Moderate
163.1Moderate
173.1Moderate
183.1Moderate
193.0Moderate
203.0Moderate
213.0Moderate
222.9Moderate
232.9Moderate
242.8Moderate
252.8Moderate
262.8Moderate
272.7Moderate
282.7Moderate
292.7Moderate
302.6Moderate
312.6Moderate
Planning a trip in October

Hazard calendar for Niitsu-honchō

In seasonPeak

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

Niitsu-honchō 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 Niitsu-honchō?

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

5.7
Sightseeing
4th-best month of the year
3.1
Beach & pool
6th-best month of the year

October is a reasonable time to visit Niitsu-honchō for sightseeing.

What to pack for Niitsu-honchō in October

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

In October, Niitsu-honchō sees daytime highs around 20°C and nights near 13°C. Pack rain gear. About 15 days see rain.

rain gear

Sea temperature near Niitsu-honchō 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 at the nearest coast (about 23 km away) is warmest in August at about 26°C and coldest in March near 10°C.

It's comfortable for a long swim from Jun 22 to Oct 30 — about 4.3 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan12Bracing
Feb10Bracing
Mar10Bracing
Apr11Bracing
May15Bracing
Jun19Cool
Jul23Refreshing
Aug26Warm
Sep25Warm
Oct22Refreshing
Nov18Cool
Dec15Cool

UV index in Niitsu-honchō in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Niitsu-honchō peaks around August 13 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateAug 13UV 9Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun8Very high
Jul9Very high
Aug9Very high
Sep8Very high
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Niitsu-honchō 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 Niitsu-honchō is worst in April — around 23 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1723 µg/m³Dec 1610 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb15Moderate
Mar22Moderate
Apr23Moderate
May22Moderate
Jun19Moderate
Jul17Moderate
Aug14Moderate
Sep12Moderate
Oct12Good
Nov11Good
Dec10Good
Location & terrain

Where is Niitsu-honchō?

Niitsu-honchō sits at 37.8°N, 139.1°E, 8 m above sea level, in Japan. The nearest listed city is Kameda-honchō, 8.0 km away.

Topography around Niitsu-honchō

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

Within 3 km, the terrain around Niitsu-honchō has only modest variations in elevation — a maximum elevation change of 101 m around an average of 11 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 651 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,110 m.

The land around Niitsu-honchō is covered by cropland (44%) and artificial surfaces (35%) within 3 km, cropland (49%), artificial surfaces (23%) and trees (21%) within 16 km, and trees (52%) and water (36%) within 80 km.

3 km
101 m
16 km
651 m
80 km
2,110 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: Kameda-honchō 8.0 km · Gosen 8.0 km · Agano 10 km · Shirone 10 km · Suibara 11 km · Muramatsu 13 km · Niigata 15 km · Kamo 17 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 Niitsu-honchō (37.8002°, 139.1224°, elevation 8 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).