Kamogawa weather in August

In August, Kamogawa sees average daytime highs of 26°C and overnight lows near 25°C, with 103 mm of rain across 9.5 wet days and about 13.3 hours of daylight. It is the 1st-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 38% of the time in August, and the air most often feels miserable.

Daylight stretches from about 13 h 48 min at the start of August to 12 h 48 min by month's end. Set against the rest of the year, August is Kamogawa's 5th-clearest and 12th-windiest month. For the whole year in context, see Kamogawa's year-round climate.

Daytime high
26°
1st warmest
Overnight low
25°
12th coldest
Rainfall
103 mm
9.5 wet days
Daylight
13 h 18 min
5:04 AM – 6:24 PM
Cloud cover
55%
5th clearest
Wind
19 km/h
12th windiest
Solar energy
5.49 kWh/m²
Travel score
6.7
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical August day in Kamogawa reaches about 26°C in the afternoon and slips back to 25°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 28°C. Set against its neighbours, August runs about 2°C warmer than July and about 2°C warmer than September.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12624
22624
32625
42625
52625
62625
72625
82625
92625
102725
112725
122725
132725
142725
152725
162725
172725
182725
192725
202725
212725
222625
232625
242625
252625
262624
272624
282624
292624
302624
312624

Kamogawa weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan11° / 104109.92.6
Feb11° / 10410.710.72.5
Mar13° / 17614.911.73.3
Apr16° / 13°14312.112.94.8
May19° / 17°15811.513.85.9
Jun22° / 20°22013.714.35.7
Jul25° / 23°14911.514.16.5
Aug26° / 25°1039.513.36.7
Sep25° / 23°21114.612.26.0
Oct21° / 18°25314.511.15.9
Nov17° / 14°16013.410.25.2
Dec13° / 103119.73.8

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 14% of August, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24753
34951
44951
54951
65050
75050
85149
95149
105149
115149
125248
135248
145347
155347
165347
175347
185446
195446
205446
215446
225446
235446
245446
255446
265347
275347
285347
295347
305347
315248

Chance of precipitation in August

Any precipitation

Kamogawa gets around 103 mm of rain over 9.5 wet days in August, the driest month. 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 42% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
127
227
326
426
526
626
727
827
927
1028
1128
1228
1329
1429
1530
1630
1731
1831
1932
2032
2133
2233
2334
2435
2536
2637
2738
2839
2940
3041
3142

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the miserable band about 46% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10184546
20184447
30184249
40174151
50184051
60183952
70183853
80183853
90183754
100183655
110193654
120193654
130193654
140293752
150293851
160293851
170293949
180294048
190394147
2003104245
2103104344
2213104443
2313104541
2413114640
2513114639
2613124737
2713134836
2803144835
2903154833
3003164832
3103174831

Wind in August

Winds average 19 km/h in August, the calmest month.

Across August, daily wind ranges from about 19 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
119light breeze
219light breeze
319light breeze
419light breeze
519light breeze
619light breeze
719light breeze
819light breeze
919light breeze
1019light breeze
1119light breeze
1219light breeze
1319light breeze
1419light breeze
1519light breeze
1619light breeze
1719light breeze
1819light breeze
1919light breeze
2019light breeze
2119light breeze
2219light breeze
2319light breeze
2419light breeze
2519light breeze
2619light breeze
2719light breeze
2819light breeze
2919light breeze
3019light breeze
3119light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 48 min at the start of August to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over August. Sunrise moves from 4:52 AM to 5:15 AM, and sunset from 6:39 PM to 6:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.84:526:39
213.84:536:38
313.74:546:37
413.74:546:36
513.74:556:36
613.64:566:35
713.64:576:34
813.64:586:33
913.64:586:31
1013.54:596:30
1113.55:006:29
1213.55:016:28
1313.45:016:27
1413.45:026:26
1513.45:036:25
1613.35:046:24
1713.35:056:22
1813.35:056:21
1913.25:066:20
2013.25:076:19
2113.25:086:17
2213.15:086:16
2313.15:096:15
2413.15:106:14
2513.05:116:12
2613.05:116:11
2713.05:126:10
2812.95:136:08
2912.95:146:07
3012.85:156:05
3112.85:156:04

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.49 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.29 kWh/m² to a high of 5.49 kWh/m² in August across the year — August's 5.49 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.6Bright
125.6Bright
135.6Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.4Bright
195.4Bright
205.4Bright
215.3Bright
225.3Bright
235.3Bright
245.2Bright
255.2Bright
265.2Bright
275.1Bright
285.1Bright
295.0Bright
305.0Bright
314.9Bright
Planning a trip in August

Hazard calendar for Kamogawa

In seasonPeak

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

Kamogawa 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 Kamogawa?

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

6.7
Sightseeing
1st-best month of the year
6.6
Beach & pool
1st-best month of the year

August is a reasonable time to visit Kamogawa for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Kamogawa in August

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

In August, Kamogawa sees daytime highs around 26°C and nights near 25°C. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

Sea temperature near Kamogawa in August

The nearest coast averages about 26°C in August — 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 26°C and coldest in February near 16°C.

It's comfortable for a long swim from May 26 to Dec 3 — about 6.3 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan17Cool
Feb16Cool
Mar16Cool
Apr17Cool
May19Cool
Jun22Refreshing
Jul24Refreshing
Aug26Warm
Sep26Warm
Oct23Refreshing
Nov21Refreshing
Dec19Cool

UV index in Kamogawa 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 Kamogawa peaks around August 10 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 highExtremeVery highHighModerateAug 10UV 10Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug10Extreme
Sep8Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Kamogawa 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 Kamogawa is worst in April — around 22 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (September, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateApr 1322 µg/m³Sep 911 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb17Moderate
Mar21Moderate
Apr22Moderate
May21Moderate
Jun16Moderate
Jul12Good
Aug11Good
Sep11Good
Oct14Moderate
Nov14Moderate
Dec13Moderate
Location & terrain

Where is Kamogawa?

Kamogawa sits at 35.1°N, 140.1°E, 20 m above sea level, in Japan. The nearest listed city is Minamibōsō, 17 km away.

Topography around Kamogawa

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

Within 3 km, the terrain around Kamogawa has only modest variations in elevation — a maximum elevation change of 242 m around an average of 27 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 404 m; within 80 km, large variations in elevation — a maximum elevation change of 728 m.

The land around Kamogawa is covered by water (41%) and trees (28%) within 3 km, trees (50%) and water (43%) within 16 km, and water (62%) within 80 km.

3 km
242 m
16 km
404 m
80 km
728 m
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Minamibōsō 17 km · Katsuura 20 km · Tateyama 25 km · Isumi 31 km · Ōhara 31 km · Futtsu 35 km · Kimitsu 35 km · Kisarazu 35 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 Kamogawa (35.0969°, 140.1003°, elevation 20 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).