Kaminoyama weather in August

In August, Kaminoyama sees average daytime highs of 27°C and overnight lows near 20°C, with 147 mm of rain across 14.8 wet days and about 13.5 hours of daylight. It is the 1st-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 28°C in the first days to 26°C by the end. The sky is clear or mostly clear about 18% of the time in August, and the air most often feels muggy.

Daylight stretches from about 14 hours at the start of August to 12 h 54 min by month's end. Set against the rest of the year, August is Kaminoyama's 5th-clearest and 11th-windiest month. For the whole year in context, see Kaminoyama's year-round climate.

Daytime high
27°
1st warmest
Overnight low
20°
12th coldest
Rainfall
147 mm
14.8 wet days
Daylight
13 h 30 min
4:58 AM – 6:28 PM
Cloud cover
71%
5th clearest
Wind
6 km/h
11th windiest
Solar energy
4.28 kWh/m²
Travel score
5.6
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 28°C in the first days to 26°C by the end.

A typical August day in Kaminoyama reaches about 27°C in the afternoon and slips back to 20°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 31°C. Set against its neighbours, August runs about 1°C warmer than July and about 4°C warmer than September.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12820
22820
32820
42820
52820
62820
72820
82820
92820
102820
112820
122720
132720
142720
152720
162720
172720
182720
192720
202720
212720
222719
232719
242619
252619
262619
272619
282619
292619
302619
312619

How August really feels in Kaminoyama

Once humidity and wind are folded in, August 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

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Kaminoyama weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -5°12621.723.19.70.0
Feb / -5°9017.918.210.50.0
Mar / -2°10916.912.211.70.5
Apr13° / 9413.72.7133.3
May19° / 91120145.6
Jun22° / 15°11912.5014.66.0
Jul26° / 19°18917.4014.45.4
Aug27° / 20°14714.8013.55.6
Sep23° / 16°12613012.35.9
Oct17° / 11812.40115.0
Nov11° / 9515.34.19.92.2
Dec / -2°1202016.39.40.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 15% of August, with mostly cloudy or overcast conditions the remaining 67%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13169
23169
33268
43268
53268
63268
73268
83268
93367
103367
113268
123367
133367
143367
153367
163367
173466
183367
193367
203466
213466
223466
233367
243367
253367
263367
273367
283367
293367
303367
313367

Chance of precipitation in August

Any precipitation

Kaminoyama gets around 147 mm of rain over 14.8 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 48% and peaks near 49% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
147
247
347
447
547
647
747
847
947
1047
1148
1248
1348
1449
1549
1649
1749
1849
1949
2049
2148
2248
2348
2448
2548
2647
2747
2847
2946
3046
3146

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the muggy band about 42% of days. Sticky, muggy-or-worse air turns up on roughly 75% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1051245380
2041244390
3041243400
4041243400
5041243410
6041342400
7051342400
8051342400
9051342390
10051342390
11051443380
12051443380
13051443370
14051543360
15051544360
16061643350
17161643340
18161743330
19171843320
20171842310
21181942300
22182042290
23182141281
24182341261
25192441251
26192541231
27192740221
281102840201
291102940191
301113139181
311113239161

Wind in August

Winds average 6 km/h in August.

Across August, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 hours at the start of August to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over August. Sunrise moves from 4:45 AM to 5:12 AM, and sunset from 6:45 PM to 6:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.04:456:45
214.04:466:44
313.94:476:43
413.94:486:42
513.94:486:41
613.84:496:40
713.84:506:39
813.84:516:38
913.74:526:36
1013.74:536:35
1113.74:546:34
1213.64:556:33
1313.64:566:32
1413.64:566:30
1513.54:576:29
1613.54:586:28
1713.54:596:26
1813.45:006:25
1913.45:016:24
2013.35:026:22
2113.35:036:21
2213.35:046:20
2313.25:056:18
2413.25:056:17
2513.15:066:15
2613.15:076:14
2713.15:086:12
2813.05:096:11
2913.05:106:09
3012.95:116:08
3112.95:126:06

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.28 kWh/m².

For context, solar energy here swings from a low near 1.85 kWh/m² to a high of 5.28 kWh/m² in May across the year — August's 4.28 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.6Bright
54.6Bright
64.6Bright
74.5Bright
84.5Bright
94.5Bright
104.5Bright
114.4Bright
124.4Bright
134.3Bright
144.3Bright
154.3Bright
164.3Bright
174.2Bright
184.2Bright
194.2Bright
204.2Bright
214.1Bright
224.1Bright
234.1Bright
244.0Bright
254.0Bright
264.0Bright
274.0Moderate
284.0Moderate
293.9Moderate
303.9Moderate
313.9Moderate
Planning a trip in August

Hazard calendar for Kaminoyama

In seasonPeak

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

Kaminoyama 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 August a good time to visit Kaminoyama?

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

5.6
Sightseeing
3rd-best month of the year
5.7
Beach & pool
1st-best month of the year

August is a reasonable time to visit Kaminoyama for sightseeing.

What to pack for Kaminoyama in August

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

In August, Kaminoyama sees daytime highs around 27°C and nights near 20°C. Pack rain gear. Worth having: light clothes. About 15 days see rain.

rain gearlight clothes

UV index in Kaminoyama in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kaminoyama peaks around August 13 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateAug 13UV 10Jan 10UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun8Very high
Jul9Very high
Aug10Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Kaminoyama in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Kaminoyama is worst in April — around 22 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1622 µg/m³Dec 1710 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar21Moderate
Apr22Moderate
May21Moderate
Jun16Moderate
Jul14Moderate
Aug12Moderate
Sep12Good
Oct12Good
Nov11Good
Dec10Good
Location & terrain

Where is Kaminoyama?

Kaminoyama sits at 38.2°N, 140.3°E, 177 m above sea level, in Japan. The nearest listed city is Yamagata, 12 km away.

Topography around Kaminoyama

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

Within 3 km, the terrain around Kaminoyama has significant variations in elevation — a maximum elevation change of 537 m around an average of 268 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,744 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,110 m.

The land around Kaminoyama is covered by trees (61%) and artificial surfaces (21%) within 3 km, trees (80%) within 16 km, and trees (75%) within 80 km.

3 km
537 m
16 km
1,744 m
80 km
2,110 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Yamagata 12 km · Takahata 18 km · Nanyō 19 km · Nagai 22 km · Tendō 24 km · Sagae 24 km · Yachi 30 km · Yonezawa 30 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 Kaminoyama (38.1539°, 140.2736°, elevation 177 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). 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).