Minamata weather in October

In October, Minamata sees average daytime highs of 24°C and overnight lows near 15°C, with 105 mm of rain across 8.6 wet days and about 11.2 hours of daylight. It is the 5th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 26°C in the first days to 21°C by the end. The sky is clear or mostly clear about 44% 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 42 min by month's end. Set against the rest of the year, October is Minamata's 1st-clearest and 8th-windiest month. For the whole year in context, see Minamata's year-round climate.

Daytime high
24°
5th warmest
Overnight low
15°
7th coldest
Rainfall
105 mm
8.6 wet days
Daylight
11 h 12 min
6:28 AM – 5:39 PM
Cloud cover
48%
1st clearest
Wind
8 km/h
8th windiest
Solar energy
3.74 kWh/m²
Travel score
7.2
out of 10

Minamata is city in Kumamoto Prefecture, Japan.

Density
180/km²
people per km²
Founded
1949

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 26°C in the first days to 21°C by the end.

A typical October day in Minamata reaches about 24°C in the afternoon and slips back to 15°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 27°C. Set against its neighbours, October runs about 5°C cooler than September and about 6°C warmer than November.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12619
22618
32618
42618
52618
62618
72517
82517
92517
102517
112516
122516
132416
142416
152416
162415
172415
182415
192315
202315
212314
222314
232314
242214
252214
262213
272213
282213
292113
302113
312113

How October really feels in Minamata

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.

Minamata weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan10° / 7810110.12.4
Feb12° / 9810.10.510.83.0
Mar15° / 14013.10.111.84.4
Apr20° / 11°16512012.85.8
May24° / 16°18912.2013.66.4
Jun26° / 20°48218.9014.14.9
Jul30° / 24°37019.4013.93.9
Aug31° / 24°17616.4013.23.8
Sep28° / 21°18113.5012.25.3
Oct24° / 15°1058.6011.27.2
Nov18° / 10°1038.9010.36.0
Dec13° / 878.90.49.93.6

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 44% of the time in October, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 16% of October, with mostly cloudy or overcast conditions the remaining 40%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25347
35347
45446
55545
65644
75743
85842
95941
106040
116040
126139
136139
146238
156337
166337
176337
186337
196337
206337
216337
226238
236238
246238
256139
266139
276139
286139
296139
306238
316139

Chance of precipitation in October

Any precipitation

Minamata gets around 105 mm of rain over 8.6 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 28% and peaks near 36% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
235
335
434
533
632
731
831
930
1029
1128
1228
1327
1427
1526
1626
1726
1825
1925
2026
2126
2226
2326
2426
2526
2626
2726
2827
2927
3027
3127

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 39% of days. Sticky, muggy-or-worse air turns up on roughly 16% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11024302312
21125292311
31226292211
41427282110
5152827209
6172927198
7192926188
8213025177
9243024166
10263023156
11293022145
12323020144
13343020134
14372919123
15392918113
16412817112
17432817102
1846271692
1948271592
2050261581
2152261471
2254251371
2355251361
2456251261
2558241251
2659241250
2761231150
2863231040
2963231040
306423940
316423940

Wind in October

Winds average 8 km/h in October.

Across October, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 42 min at the start of October to 10 h 42 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 6:17 AM to 6:40 AM, and sunset from 5:58 PM to 5:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.76:175:58
211.76:175:57
311.66:185:55
411.66:195:54
511.66:205:53
611.56:205:51
711.56:215:50
811.56:225:49
911.46:225:48
1011.46:235:46
1111.46:245:45
1211.36:255:44
1311.36:255:43
1411.36:265:42
1511.26:275:40
1611.26:285:39
1711.26:285:38
1811.16:295:37
1911.16:305:36
2011.16:315:35
2111.06:325:34
2211.06:325:33
2311.06:335:32
2410.96:345:31
2510.96:355:30
2610.96:365:29
2710.96:375:28
2810.86:375:27
2910.86:385:26
3010.86:395:25
3110.76:405:24

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.74 kWh/m².

For context, solar energy here swings from a low near 2.36 kWh/m² to a high of 5.1 kWh/m² in May across the year — October's 3.74 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
14.0Moderate
23.9Moderate
33.9Moderate
43.9Moderate
53.9Moderate
63.9Moderate
73.9Moderate
83.9Moderate
93.9Moderate
103.9Moderate
113.9Moderate
123.8Moderate
133.8Moderate
143.8Moderate
153.8Moderate
163.8Moderate
173.8Moderate
183.7Moderate
193.7Moderate
203.7Moderate
213.6Moderate
223.6Moderate
233.6Moderate
243.5Moderate
253.5Moderate
263.5Moderate
273.4Moderate
283.4Moderate
293.4Moderate
303.3Moderate
313.3Moderate
Planning a trip in October

Hazard calendar for Minamata

In seasonPeak

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

Minamata sits in the Pacific typhoon belt; the season peaks July–October.

Minamata's rainy season runs June–July, when most of the year's rain falls.

Pacific typhoon
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is October a good time to visit Minamata?

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

7.2
Sightseeing
1st-best month of the year
5.8
Beach & pool
2nd-best month of the year

October is one of the better times to visit Minamata for general sightseeing.

What to pack for Minamata in October

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

In October, Minamata sees daytime highs around 24°C and nights near 15°C. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

Sea temperature near Minamata in October

The nearest coast averages about 24°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 28°C and coldest in February near 16°C.

It's comfortable for a long swim from May 16 to Dec 4 — about 6.7 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan17Cool
Feb16Cool
Mar17Cool
Apr18Cool
May20Refreshing
Jun23Refreshing
Jul26Warm
Aug28Warm
Sep27Warm
Oct24Warm
Nov22Refreshing
Dec19Cool

UV index in Minamata in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Minamata peaks around July 12 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 12UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr8Very high
May8Very high
Jun10Very high
Jul10Extreme
Aug9Very high
Sep10Very high
Oct7High
Nov4Moderate
Dec3Moderate

Air quality in Minamata 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 Minamata is worst in March — around 24 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (July, 13 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2424 µg/m³Jul 2114 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb20Moderate
Mar24Moderate
Apr24Moderate
May22Moderate
Jun18Moderate
Jul13Moderate
Aug14Moderate
Sep14Moderate
Oct14Moderate
Nov16Moderate
Dec15Moderate
Location & terrain

Where is Minamata?

Minamata sits at 32.2°N, 130.4°E, 2 m above sea level, in Japan. The nearest listed city is Sashiki, 14 km away.

Topography around Minamata

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

Within 3 km, the terrain around Minamata has significant variations in elevation — a maximum elevation change of 287 m around an average of 38 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 914 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,718 m.

The land around Minamata is covered by trees (41%) and water (37%) within 3 km, water (48%) and trees (46%) within 16 km, and trees (50%) and water (42%) within 80 km.

3 km
287 m
16 km
914 m
80 km
1,718 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Sashiki 14 km · Izumi 15 km · Isa 26 km · Ōkuchi-shinohara 27 km · Akune 29 km · Tsuruda 31 km · Hitoyoshi 33 km · Amakusa 33 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 Minamata (32.2167°, 130.4°, elevation 2 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).