Mishōhirajō weather in August

In August, Mishōhirajō sees average daytime highs of 27°C and overnight lows near 25°C, with 141 mm of rain across 12.1 wet days and about 13.2 hours of daylight. It is the 1st-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 37% of the time in August, and the air most often feels miserable.

Daylight stretches from about 13 h 36 min at the start of August to 12 h 42 min by month's end. Set against the rest of the year, August is Mishōhirajō's 6th-clearest and 10th-windiest month. For the whole year in context, see Mishōhirajō's year-round climate.

Daytime high
27°
1st warmest
Overnight low
25°
12th coldest
Rainfall
141 mm
12.1 wet days
Daylight
13 h 12 min
5:37 AM – 6:51 PM
Cloud cover
55%
6th clearest
Wind
16 km/h
10th windiest
Solar energy
5.27 kWh/m²
Travel score
6.2
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical August day in Mishōhirajō reaches about 27°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 26°C and 29°C. Set against its neighbours, August runs about 1°C warmer than July and about 2°C warmer than September.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12725
22725
32725
42725
52725
62725
72725
82725
92725
102825
112825
122825
132825
142825
152825
162825
172825
182725
192725
202725
212725
222725
232725
242725
252725
262725
272725
282725
292725
302725
312724

Mishōhirajō weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan10° / 8711.70.810.12.3
Feb11° / 9310.80.410.82.6
Mar14° / 10°13512.4011.73.8
Apr17° / 13°14610.7012.85.4
May20° / 17°17210.7013.76.2
Jun23° / 21°30614.9014.15.7
Jul26° / 24°21012.20146.2
Aug27° / 25°14112.1013.26.2
Sep26° / 23°20413.4012.26.3
Oct22° / 19°1649.7011.26.9
Nov17° / 14°1039.2010.35.8
Dec13° / 10010.40.29.93.6

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% 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 (%)
15149
25149
35149
45149
55149
65149
75248
85248
95248
105149
115149
125149
135149
145149
155149
165149
175248
185248
195248
205347
215347
225347
235347
245347
255248
265248
275248
285149
295149
305149
315149

Chance of precipitation in August

Any precipitation

Mishōhirajō gets around 141 mm of rain over 12.1 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 39% and peaks near 46% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
134
235
335
435
535
636
736
836
936
1037
1137
1237
1337
1438
1538
1638
1738
1839
1939
2039
2140
2241
2341
2442
2542
2643
2744
2844
2945
3046
3146

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 56% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1013861
2013762
3013663
4013663
5013564
6013564
7013465
8013465
9013465
10013465
11013465
12013465
13013465
14013564
15123562
16123661
17123760
18133759
19143857
20143956
21153955
22164053
23174151
24284249
25294347
262104445
272104542
282114640
292134838
302144936
312155033

Wind in August

Winds average 16 km/h in August.

Across August, daily wind ranges from about 15 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 36 min at the start of August to 12 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 54 minutes over August. Sunrise moves from 5:26 AM to 5:47 AM, and sunset from 7:05 PM to 6:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.65:267:05
213.65:277:04
313.65:287:03
413.65:297:03
513.55:297:02
613.55:307:01
713.55:317:00
813.55:316:59
913.45:326:58
1013.45:336:57
1113.45:336:56
1213.35:346:55
1313.35:356:54
1413.35:366:53
1513.35:366:52
1613.25:376:51
1713.25:386:50
1813.25:386:48
1913.15:396:47
2013.15:406:46
2113.15:406:45
2213.05:416:44
2313.05:426:42
2413.05:436:41
2512.95:436:40
2612.95:446:39
2712.95:456:37
2812.85:456:36
2912.85:466:35
3012.85:476:34
3112.75:476:32

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.27 kWh/m².

For context, solar energy here swings from a low near 2.54 kWh/m² to a high of 5.47 kWh/m² in May across the year — August's 5.27 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.4Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.1Bright
235.1Bright
245.1Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
294.9Bright
304.9Bright
314.8Bright
Planning a trip in August

Hazard calendar for Mishōhirajō

In seasonPeak

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

Mishōhirajō 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 Mishōhirajō?

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

6.2
Sightseeing
3rd-best month of the year
6.4
Beach & pool
1st-best month of the year

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

What to pack for Mishōhirajō in August

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

In August, Mishōhirajō sees daytime highs around 27°C and nights near 25°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

Sea temperature near Mishōhirajō in August

The nearest coast averages about 28°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 28°C and coldest in February near 18°C.

It's comfortable for a long swim from May 1 to Dec 23 — about 7.8 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan19Cool
Feb18Cool
Mar18Cool
Apr19Cool
May21Refreshing
Jun23Refreshing
Jul26Warm
Aug28Warm
Sep27Warm
Oct25Warm
Nov23Refreshing
Dec20Refreshing

UV index in Mishōhirajō in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mishōhirajō peaks around June 23 at about 11 (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 highModerateJun 23UV 11Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr7Very high
May8Very high
Jun11Extreme
Jul11Extreme
Aug9Very high
Sep10Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Mishōhirajō 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 Mishōhirajō is worst in April — around 20 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1420 µg/m³Oct 1410 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb15Moderate
Mar19Moderate
Apr20Moderate
May18Moderate
Jun15Moderate
Jul11Good
Aug11Good
Sep10Good
Oct10Good
Nov11Good
Dec10Good
Location & terrain

Where is Mishōhirajō?

Mishōhirajō sits at 33.0°N, 132.6°E, 10 m above sea level, in Japan. The nearest listed city is Sukumo, 16 km away.

Topography around Mishōhirajō

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

Within 3 km, the terrain around Mishōhirajō has significant variations in elevation — a maximum elevation change of 305 m around an average of 59 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,052 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,529 m.

The land around Mishōhirajō is covered by trees (67%) within 3 km, trees (49%) and water (48%) within 16 km, and water (62%) and trees (36%) within 80 km.

3 km
305 m
16 km
1,052 m
80 km
1,529 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Sukumo 16 km · Uwajima 29 km · Nakamura 34 km · Shimoda 39 km · Uwa 45 km · Yawatahama 56 km · Ōzu 60 km · Saiki 62 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 Mishōhirajō (32.9637°, 132.5661°, elevation 10 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).