Usuki weather in October

In October, Usuki sees average daytime highs of 23°C and overnight lows near 15°C, with 150 mm of rain across 8.4 wet days and about 11.2 hours of daylight. It is the 6th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 25°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 Usuki's 3rd-clearest and 6th-windiest month. For the whole year in context, see Usuki's year-round climate.

Daytime high
23°
6th warmest
Overnight low
15°
8th coldest
Rainfall
150 mm
8.4 wet days
Daylight
11 h 12 min
6:23 AM – 5:33 PM
Cloud cover
49%
3rd clearest
Wind
9 km/h
6th windiest
Solar energy
3.73 kWh/m²
Travel score
7.2
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 25°C in the first days to 21°C by the end.

A typical October day in Usuki reaches about 23°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 26°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)
12518
22518
32518
42518
52518
62517
72517
82417
92417
102417
112416
122416
132416
142316
152316
162315
172315
182315
192315
202214
212214
222214
232214
242214
252214
262113
272113
282113
292113
302113
312112

How October really feels in Usuki

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.

Usuki weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan11° / 565.40.410.12.9
Feb12° / 6470.610.83.3
Mar15° / 9710.2011.74.7
Apr20° / 11°11710.2012.86.2
May24° / 15°14110.9013.76.6
Jun27° / 20°29116.4014.15.2
Jul31° / 24°21716.40143.8
Aug31° / 24°20717.4013.23.6
Sep28° / 21°22914.6012.25.4
Oct23° / 15°1508.4011.27.2
Nov18° / 10°796.9010.36.2
Dec13° / 565.709.94.1

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 44% 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 41%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
25149
35149
45248
55347
65446
75545
85644
95743
105743
115842
125842
135941
145941
156040
166040
176139
186139
196040
206139
216139
226139
236139
246238
256238
266238
276238
286436
296436
306436
316436

Chance of precipitation in October

Any precipitation

Usuki gets around 150 mm of rain over 8.4 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 39% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
238
337
436
535
633
732
831
930
1029
1128
1227
1326
1425
1525
1625
1724
1824
1924
2024
2124
2225
2325
2425
2525
2625
2725
2825
2925
3025
3125

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 37% of days. Sticky, muggy-or-worse air turns up on roughly 15% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
110233024121
211243023111
312253022101
41326292191
51527282190
61728272080
71929261970
82130251870
92330241760
102531231650
112731221550
123031211440
133231201340
143431201230
153631191130
163831181130
174030181020
18423017920
19443017810
20462916810
21482915710
22502815610
23522814600
24542714500
25552614500
26572613400
27582513400
28592512400
29612511300
30622411300
31632410300

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 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
319calm

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 6:11 AM to 6:36 AM, and sunset from 5:52 PM to 5:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.76:115:52
211.66:125:51
311.66:135:49
411.66:145:48
511.56:145:47
611.56:155:45
711.56:165:44
811.46:175:43
911.46:175:41
1011.46:185:40
1111.36:195:39
1211.36:205:38
1311.36:215:36
1411.26:215:35
1511.26:225:34
1611.26:235:33
1711.16:245:32
1811.16:255:30
1911.16:255:29
2011.06:265:28
2111.06:275:27
2211.06:285:26
2310.96:295:25
2410.96:305:24
2510.96:305:23
2610.86:315:22
2710.86:325:21
2810.86:335:20
2910.76:345:19
3010.76:355:18
3110.76:365:17

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.73 kWh/m².

For context, solar energy here swings from a low near 2.49 kWh/m² to a high of 5.5 kWh/m² in May across the year — October's 3.73 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
103.8Moderate
113.8Moderate
123.8Moderate
133.8Moderate
143.8Moderate
153.8Moderate
163.8Moderate
173.7Moderate
183.7Moderate
193.7Moderate
203.7Moderate
213.6Moderate
223.6Moderate
233.6Moderate
243.5Moderate
253.5Moderate
263.5Moderate
273.5Moderate
283.4Moderate
293.4Moderate
303.4Moderate
313.3Moderate
Planning a trip in October

Hazard calendar for Usuki

In seasonPeak

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

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

Usuki's rainy season runs May–October, 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 Usuki?

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
5.4
Beach & pool
5th-best month of the year

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

What to pack for Usuki in October

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

In October, Usuki sees daytime highs around 23°C and nights near 15°C. Worth packing: light clothes and rain gear. About 8 days see rain.

light clothesrain gear

Sea temperature near Usuki 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 29 km away) is warmest in August at about 26°C and coldest in February near 14°C.

It's comfortable for a long swim from Jun 5 to Nov 20 — about 5.6 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb14Bracing
Mar14Bracing
Apr16Cool
May18Cool
Jun21Refreshing
Jul24Warm
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov20Refreshing
Dec18Cool

UV index in Usuki 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 Usuki peaks around June 21 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highModerateJun 21UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr7Very high
May8Very high
Jun10Extreme
Jul10Very high
Aug9Very high
Sep10Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Usuki 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 Usuki is worst in April — around 23 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodGoodApr 1523 µg/m³Oct 1611 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb17Moderate
Mar22Moderate
Apr23Moderate
May22Moderate
Jun19Moderate
Jul16Moderate
Aug16Moderate
Sep12Moderate
Oct11Good
Nov12Moderate
Dec12Good
Location & terrain

Where is Usuki?

Usuki sits at 33.1°N, 131.8°E, 4 m above sea level, in Japan. The nearest listed city is Tsukumiura, 8.0 km away.

Topography around Usuki

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

Within 3 km, the terrain around Usuki has significant variations in elevation — a maximum elevation change of 460 m around an average of 65 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 716 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,758 m.

The land around Usuki is covered by trees (56%) and water (21%) within 3 km, trees (61%) and water (27%) within 16 km, and water (49%) and trees (45%) within 80 km.

3 km
460 m
16 km
716 m
80 km
1,758 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Tsukumiura 8.0 km · Tsurusaki 17 km · Saiki 21 km · Ōita 23 km · Mie 27 km · Beppu 33 km · Kitsuki 37 km · Hiji 37 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 Usuki (33.1234°, 131.804°, elevation 4 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).