Kasumigaura weather in October

In October, Kasumigaura sees average daytime highs of 21°C and overnight lows near 14°C, with 191 mm of rain across 12.4 wet days and about 11.1 hours of daylight. It is the 6th-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 30% 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 30 min by month's end. Set against the rest of the year, October is Kasumigaura's 6th-clearest and 7th-windiest month. For the whole year in context, see Kasumigaura's year-round climate.

Daytime high
21°
6th warmest
Overnight low
14°
8th coldest
Rainfall
191 mm
12.4 wet days
Daylight
11 h 06 min
5:52 AM – 4:56 PM
Cloud cover
62%
6th clearest
Wind
9 km/h
7th windiest
Solar energy
2.97 kWh/m²
Travel score
6.1
out of 10

Kasumigaura is city in Ibaraki Prefecture, Japan.

Density
256/km²
people per km²
Founded
2005

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 Kasumigaura reaches about 21°C in the afternoon and slips back to 14°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 24°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)
12317
22317
32317
42317
52317
62317
72216
82216
92216
102216
112216
122215
132115
142115
152115
162114
172114
182114
192014
202014
212013
222013
232013
242013
251913
261912
271912
281912
291912
301912
311911

How October really feels in Kasumigaura

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.

Kasumigaura weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 616.71.59.81.8
Feb / 617.41.710.62.1
Mar13° / 11012.5111.73.4
Apr18° / 11411.90.112.95.3
May22° / 14°14012.5013.96.2
Jun25° / 18°15314.9014.45.6
Jul29° / 22°17116.1014.24.7
Aug30° / 23°12713.6013.44.5
Sep26° / 20°17414.5012.25.6
Oct21° / 14°19112.4011.16.1
Nov16° / 919.5010.15.1
Dec11° / 607.40.29.62.9

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% 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 55%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23763
33862
43961
53961
63961
74060
84060
94060
104060
114060
124159
134159
144258
154258
164258
174357
184456
194456
204753
214753
224852
234852
245050
255149
265248
275347
285446
295545
305644
315644

Chance of precipitation in October

Any precipitation

Kasumigaura gets around 191 mm of rain over 12.4 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 40% and peaks near 46% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
146
245
345
445
544
644
744
844
944
1043
1143
1242
1342
1441
1541
1640
1739
1839
1939
2038
2138
2238
2337
2437
2536
2636
2735
2835
2935
3034
3134

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 48% of days. Sticky, muggy-or-worse air turns up on roughly 7% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1192437173
2202537162
3212537152
4232536141
5252536131
6262635121
7282634111
8312632101
933273191
1035272981
1137282780
1240282470
1342292260
1444292060
1547301850
1649301650
1752301440
1853301340
1956301130
2058291030
216029920
226228820
236328720
246627610
256826510
266925510
277124410
287223410
297421410
307720300
317819300

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 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
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 36 min at the start of October to 10 h 30 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 5:39 AM to 6:07 AM, and sunset from 5:17 PM to 4:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.65:395:17
211.65:405:16
311.65:415:14
411.55:415:13
511.55:425:11
611.45:435:10
711.45:445:08
811.45:455:07
911.35:465:05
1011.35:475:04
1111.35:485:03
1211.25:485:01
1311.25:495:00
1411.15:504:59
1511.15:514:57
1611.15:524:56
1711.05:534:55
1811.05:544:53
1911.05:554:52
2010.95:564:51
2110.95:574:50
2210.85:584:48
2310.85:594:47
2410.86:004:46
2510.76:014:45
2610.76:024:44
2710.76:034:43
2810.66:044:42
2910.66:054:41
3010.66:064:40
3110.56:074:38

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 2.37 kWh/m² to a high of 5.24 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
93.0Moderate
103.0Moderate
113.0Moderate
123.0Moderate
133.0Moderate
143.0Moderate
153.0Moderate
163.0Moderate
173.0Moderate
182.9Moderate
192.9Moderate
202.9Moderate
212.9Moderate
222.9Moderate
232.9Moderate
242.9Moderate
252.9Moderate
262.9Moderate
272.9Moderate
282.9Moderate
292.9Moderate
302.9Moderate
312.9Moderate
Planning a trip in October

Hazard calendar for Kasumigaura

In seasonPeak

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

Kasumigaura 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 Kasumigaura?

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

6.1
Sightseeing
2nd-best month of the year
3.7
Beach & pool
6th-best month of the year

October is a reasonable time to visit Kasumigaura for sightseeing.

What to pack for Kasumigaura in October

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

In October, Kasumigaura sees daytime highs around 21°C and nights near 14°C. Worth packing: rain gear. About 12 days see rain.

rain gear

Sea temperature near Kasumigaura in October

The nearest coast averages about 21°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 34 km away) is warmest in August at about 24°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 23 to Oct 28 — about 4.2 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb13Bracing
Mar13Bracing
Apr15Bracing
May17Cool
Jun20Cool
Jul22Refreshing
Aug24Warm
Sep23Refreshing
Oct21Refreshing
Nov19Cool
Dec16Cool

UV index in Kasumigaura 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 Kasumigaura peaks around August 12 at about 10 (very high) — 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 highModerateAug 12UV 10Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul10Very high
Aug10Very high
Sep8Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Kasumigaura 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 Kasumigaura is worst in March — around 25 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 14 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2425 µg/m³Dec 1914 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb18Moderate
Mar25Moderate
Apr25Moderate
May24Moderate
Jun19Moderate
Jul16Moderate
Aug15Moderate
Sep15Moderate
Oct16Moderate
Nov16Moderate
Dec14Moderate
Location & terrain

Where is Kasumigaura?

Kasumigaura sits at 36.2°N, 140.2°E, 9 m above sea level, in Japan. The nearest listed city is Ishioka, 4.0 km away.

Topography around Kasumigaura

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

Within 3 km, the terrain around Kasumigaura has only modest variations in elevation — a maximum elevation change of 45 m around an average of 23 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 863 m; within 80 km, large variations in elevation — a maximum elevation change of 945 m.

The land around Kasumigaura is covered by trees (54%) and cropland (21%) within 3 km, trees (44%) and cropland (23%) within 16 km, and trees (31%), water (23%) and artificial surfaces (22%) within 80 km.

3 km
45 m
16 km
863 m
80 km
945 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: Ishioka 4.0 km · Suginami 6.0 km · Tsuchiura 8.0 km · Naka 14 km · Ami 14 km · Tsukuba 14 km · Sakuragawa 16 km · Omitama 16 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 Kasumigaura (36.1533°, 140.2464°, elevation 9 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).