Ōtsuki weather in October

In October, Ōtsuki sees average daytime highs of 18°C and overnight lows near 11°C, with 246 mm of rain across 15.3 wet days and about 11.1 hours of daylight. It is the 6th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 21°C in the first days to 16°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 36 min by month's end. Set against the rest of the year, October is Ōtsuki's 7th-clearest and 8th-windiest month. For the whole year in context, see Ōtsuki's year-round climate.

Daytime high
18°
6th warmest
Overnight low
11°
8th coldest
Rainfall
246 mm
15.3 wet days
Daylight
11 h 06 min
5:57 AM – 5:02 PM
Cloud cover
66%
7th clearest
Wind
5 km/h
8th windiest
Solar energy
2.97 kWh/m²
Travel score
5.1
out of 10

Ōtsuki is city in Yamanashi Prefecture, Japan.

Density
86/km²
people per km²
Founded
1954

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 21°C in the first days to 16°C by the end.

A typical October day in Ōtsuki reaches about 18°C in the afternoon and slips back to 11°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 22°C. Set against its neighbours, October runs about 5°C cooler than September and about 5°C warmer than November.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12114
22114
32114
42014
52014
62013
72013
82013
92013
101913
111912
121912
131912
141912
151912
161811
171811
181811
191811
201810
211810
221710
231710
241710
25179
26179
27179
28179
29169
30168
31168

How October really feels in Ōtsuki

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.

Ōtsuki weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°818.85.89.90.4
Feb / -3°879.96.210.70.7
Mar10° / 15815.15.111.72.0
Apr16° / 15814.30.812.94.2
May20° / 11°16814.9013.95.4
Jun23° / 16°22918.4014.45.0
Jul27° / 20°23019.8014.24.9
Aug27° / 21°18719.1013.35.0
Sep24° / 17°24917.2012.25.4
Oct18° / 11°24615.3011.15.1
Nov13° / 11311.30.110.13.7
Dec / 789.32.39.61.7

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 14% of October, with mostly cloudy or overcast conditions the remaining 61%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12971
23070
33070
43169
53169
63268
73268
83367
93367
103466
113466
123565
133565
143763
153763
163763
173961
183961
194060
204258
214258
224357
234555
244654
254753
264753
274951
285050
295149
305248
315347

Chance of precipitation in October

Any precipitation

Ōtsuki gets around 246 mm of rain over 15.3 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 49% and peaks near 56% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
156
256
356
455
555
654
754
854
953
1053
1152
1251
1351
1450
1549
1649
1748
1848
1947
2047
2146
2246
2345
2445
2544
2643
2742
2841
2940
3039
3138

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 70% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13439225
23639214
33838203
44038193
54337182
64536172
74835162
85133151
95432131
105730121
116028111
126326101
13662491
14702280
15722170
16751960
17771850
18801640
19811540
20831430
21851320
22871120
23891010
2490910
2591810
2691810
2793700
2894600
2994600
3095500
3195500

Wind in October

Winds average 5 km/h in October.

Across October, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

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 5:44 AM to 6:11 AM, and sunset from 5:22 PM to 4:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.65:445:22
211.65:455:21
311.65:455:19
411.55:465:18
511.55:475:17
611.55:485:15
711.45:495:14
811.45:505:12
911.35:515:11
1011.35:515:10
1111.35:525:08
1211.25:535:07
1311.25:545:06
1411.25:555:04
1511.15:565:03
1611.15:575:02
1711.05:585:00
1811.05:594:59
1911.05:594:58
2010.96:004:57
2110.96:014:55
2210.96:024:54
2310.86:034:53
2410.86:044:52
2510.86:054:51
2610.76:064:50
2710.76:074:49
2810.76:084:47
2910.66:094:46
3010.66:104:45
3110.66:114:44

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 2.97 kWh/m².

For context, solar energy here swings from a low near 2.41 kWh/m² to a high of 5.16 kWh/m² in May across the year — October's 2.97 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
83.1Moderate
93.1Moderate
103.0Moderate
113.0Moderate
123.0Moderate
133.0Moderate
143.0Moderate
153.0Moderate
163.0Moderate
173.0Moderate
183.0Moderate
192.9Moderate
202.9Moderate
212.9Moderate
222.9Moderate
232.9Moderate
242.9Moderate
252.9Moderate
262.9Moderate
272.9Moderate
282.9Moderate
292.9Moderate
302.9Moderate
312.8Moderate
Planning a trip in October

Hazard calendar for Ōtsuki

In seasonPeak

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

Ōtsuki 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 Ōtsuki?

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

5.1
Sightseeing
3rd-best month of the year
1.9
Beach & pool
6th-best month of the year

October is a reasonable time to visit Ōtsuki for sightseeing.

What to pack for Ōtsuki in October

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

In October, Ōtsuki sees daytime highs around 18°C and nights near 11°C. Pack rain gear. About 15 days see rain.

rain gear

Sea temperature near Ōtsuki in October

The nearest coast averages about 23°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 57 km away) is warmest in August at about 26°C and coldest in February near 15°C.

It's comfortable for a long swim from May 31 to Nov 26 — about 5.9 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar16Cool
Apr17Cool
May19Cool
Jun21Refreshing
Jul24Refreshing
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov21Refreshing
Dec18Cool

UV index in Ōtsuki 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 Ōtsuki 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 highExtremeVery highModerateJul 16UV 10Dec 23UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7Very high
May9Very high
Jun10Very high
Jul11Extreme
Aug10Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Ōtsuki 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 Ōtsuki is worst in April — around 23 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (December, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1623 µg/m³Dec 1610 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb20Moderate
Mar20Moderate
Apr23Moderate
May20Moderate
Jun17Moderate
Jul13Moderate
Aug12Good
Sep12Good
Oct12Good
Nov11Good
Dec10Good
Location & terrain

Where is Ōtsuki?

Ōtsuki sits at 35.6°N, 139.0°E, 360 m above sea level, in Japan. The nearest listed city is Tsuru, 10 km away.

Topography around Ōtsuki

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

Within 3 km, the terrain around Ōtsuki has large variations in elevation — a maximum elevation change of 737 m around an average of 476 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,836 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,737 m.

The land around Ōtsuki is covered by trees (82%) within 3 km, trees (94%) within 16 km, and trees (60%) and artificial surfaces (20%) within 80 km.

3 km
737 m
16 km
1,836 m
80 km
3,737 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: Tsuru 10 km · Uenohara 13 km · Kōshū 22 km · Enzan 24 km · Sagamihara 25 km · Itsukaichi 25 km · Fujiyoshida 26 km · Yamanashi 26 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 Ōtsuki (35.6185°, 138.974°, elevation 360 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).