Kusatsu weather in October

In October, Kusatsu sees average daytime highs of 22°C and overnight lows near 13°C, with 148 mm of rain across 9.6 wet days and about 11.1 hours of daylight. It is the 6th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 24°C in the first days to 19°C by the end. The sky is clear or mostly clear about 39% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 42 min at the start of October to 10 h 36 min by month's end. Set against the rest of the year, October is Kusatsu's 3rd-clearest and 7th-windiest month. For the whole year in context, see Kusatsu's year-round climate.

Daytime high
22°
6th warmest
Overnight low
13°
7th coldest
Rainfall
148 mm
9.6 wet days
Daylight
11 h 06 min
6:08 AM – 5:14 PM
Cloud cover
55%
3rd clearest
Wind
9 km/h
7th windiest
Solar energy
3.36 kWh/m²
Travel score
6.7
out of 10

Kusatsu is city in Shiga Prefecture, Japan.

Density
2,122/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 24°C in the first days to 19°C by the end.

A typical October day in Kusatsu reaches about 22°C in the afternoon and slips back to 13°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 25°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)
12417
22416
32416
42416
52416
62316
72315
82315
92315
102315
112314
122214
132214
142214
152214
162213
172113
182113
192113
202112
212112
222012
232012
242012
252011
262011
271911
281911
291911
301910
311910

How October really feels in Kusatsu

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.

Kusatsu weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 618.32.59.91.2
Feb / 6492.510.71.6
Mar12° / 11012.20.611.73.2
Apr18° / 11911012.95.5
May23° / 13°13810.7013.86.5
Jun26° / 18°17712.9014.35.8
Jul30° / 23°18214.8014.14.3
Aug32° / 24°10311.1013.34.0
Sep28° / 20°15311.5012.25.8
Oct22° / 13°1489.6011.16.7
Nov16° / 746.8010.25.3
Dec10° / 587.71.19.72.5

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 15% of October, with mostly cloudy or overcast conditions the remaining 47%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24555
34555
44555
54753
64753
74852
85050
95050
105149
115248
125248
135446
145446
155446
165545
175545
185644
195743
205743
215743
225743
235743
245743
255743
265842
275842
285842
295941
305941
315941

Chance of precipitation in October

Any precipitation

Kusatsu gets around 148 mm of rain over 9.6 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 31% and peaks near 38% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
238
337
437
536
635
735
834
933
1032
1131
1231
1330
1430
1529
1629
1729
1829
1929
2029
2129
2229
2329
2429
2528
2628
2728
2827
2927
3026
3126

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 54% of days. Sticky, muggy-or-worse air turns up on roughly 5% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1203231143
2223330132
3233330122
4253329112
5273328111
6293327101
731332691
833332581
936332371
1039322271
1142322060
1244311960
1347301750
1450301650
1553291440
1655281340
1758271230
1861251130
1963241030
206623920
216822820
227021720
237320610
247419610
257618510
267717510
277916500
288015500
298214400
308313400
318412400

Wind in October

Winds average 9 km/h in October.

Across October, 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.

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
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
318calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 42 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 66 minutes over October. Sunrise moves from 5:56 AM to 6:22 AM, and sunset from 5:35 PM to 4:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:565:35
211.65:565:33
311.65:575:32
411.55:585:30
511.55:595:29
611.56:005:28
711.46:005:26
811.46:015:25
911.46:025:23
1011.36:035:22
1111.36:045:21
1211.26:055:19
1311.26:055:18
1411.26:065:17
1511.16:075:15
1611.16:085:14
1711.16:095:13
1811.06:105:12
1911.06:115:11
2011.06:125:09
2110.96:135:08
2210.96:135:07
2310.96:145:06
2410.86:155:05
2510.86:165:04
2610.86:175:03
2710.76:185:01
2810.76:195:00
2910.76:204:59
3010.66:214:58
3110.66:224:57

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.36 kWh/m².

For context, solar energy here swings from a low near 2.23 kWh/m² to a high of 5.41 kWh/m² in May across the year — October's 3.36 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.6Moderate
23.6Moderate
33.5Moderate
43.5Moderate
53.5Moderate
63.5Moderate
73.5Moderate
83.5Moderate
93.5Moderate
103.5Moderate
113.5Moderate
123.4Moderate
133.4Moderate
143.4Moderate
153.4Moderate
163.4Moderate
173.4Moderate
183.4Moderate
193.3Moderate
203.3Moderate
213.3Moderate
223.3Moderate
233.3Moderate
243.2Moderate
253.2Moderate
263.2Moderate
273.1Moderate
283.1Moderate
293.1Moderate
303.1Moderate
313.0Moderate
Planning a trip in October

Hazard calendar for Kusatsu

In seasonPeak

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

Kusatsu 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 Kusatsu?

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

6.7
Sightseeing
1st-best month of the year
4.3
Beach & pool
6th-best month of the year

October is a reasonable time to visit Kusatsu for sightseeing.

What to pack for Kusatsu in October

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

In October, Kusatsu sees daytime highs around 22°C and nights near 13°C. Worth packing: rain gear. About 10 days see rain.

rain gear

Sea temperature near Kusatsu 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 62 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 May 31 to Nov 9 — about 5.4 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar14Bracing
Apr15Cool
May18Cool
Jun22Refreshing
Jul26Warm
Aug27Warm
Sep26Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Kusatsu 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 Kusatsu peaks around July 14 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 14UV 10Dec 23UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7High
May8Very high
Jun10Very high
Jul10Extreme
Aug9Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Kusatsu 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 Kusatsu is worst in April — around 24 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (October, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1723 µg/m³Oct 1812 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb17Moderate
Mar22Moderate
Apr24Moderate
May22Moderate
Jun19Moderate
Jul17Moderate
Aug17Moderate
Sep14Moderate
Oct12Good
Nov13Moderate
Dec12Moderate
Location & terrain

Where is Kusatsu?

Kusatsu sits at 35.0°N, 136.0°E, 102 m above sea level, in Japan. The nearest listed city is Rittō, 3.0 km away.

Topography around Kusatsu

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

Within 3 km, the terrain around Kusatsu has only modest variations in elevation — a maximum elevation change of 144 m around an average of 104 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 825 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,418 m.

The land around Kusatsu is covered by artificial surfaces (74%) within 3 km, trees (49%) and artificial surfaces (23%) within 16 km, and trees (60%) within 80 km.

3 km
144 m
16 km
825 m
80 km
1,418 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Rittō 3.0 km · Moriyama 6.0 km · Ōtsu 9.0 km · Yasu 10 km · Konan 12 km · Ōmihachiman 17 km · Kitahama 17 km · Kōka 18 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 Kusatsu (35.0167°, 135.9667°, elevation 102 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).