Tsuma weather in August

In August, Tsuma sees average daytime highs of 29°C and overnight lows near 26°C, with 210 mm of rain across 15.6 wet days and about 13.2 hours of daylight. It is the 1st-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 32% 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 Tsuma's 8th-clearest and 8th-windiest month. For the whole year in context, see Tsuma's year-round climate.

Daytime high
29°
1st warmest
Overnight low
26°
12th coldest
Rainfall
210 mm
15.6 wet days
Daylight
13 h 12 min
5:43 AM – 6:54 PM
Cloud cover
60%
8th clearest
Wind
13 km/h
8th windiest
Solar energy
5.04 kWh/m²
Travel score
4.9
out of 10

Tsuma is human settlement in Japan.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical August day in Tsuma reaches about 29°C in the afternoon and slips back to 26°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 31°C. Set against its neighbours, August runs about 1°C warmer than July and about 2°C warmer than September.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12926
22926
32926
42926
52926
62926
72926
82926
92926
102926
112926
122926
132926
142926
152926
162926
172926
182926
192926
202926
212926
222926
232926
242926
252926
262926
272826
282826
292826
302825
312825

How August really feels in Tsuma

Once humidity and wind are folded in, August averages 30 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
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Tsuma weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan12° / 79710.13.6
Feb13° / 988.110.83.7
Mar15° / 11°15412.211.84.6
Apr19° / 14°17511.712.85.7
May22° / 18°20012.613.66.1
Jun25° / 22°38717.614.15.3
Jul28° / 25°22414.113.95.3
Aug29° / 26°21015.613.24.9
Sep27° / 24°26815.412.25.7
Oct23° / 20°17410.511.26.9
Nov19° / 15°1088.510.46.4
Dec14° / 10°806.39.94.8

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% 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 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24753
34753
44753
54555
64555
74555
84555
94555
104456
114456
124456
134456
144456
154555
164555
174654
184654
194753
204852
214951
224852
234951
244852
254852
264852
274753
284654
294654
304654
314654

Chance of precipitation in August

Any precipitation

Tsuma gets around 210 mm of rain over 15.6 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 50% and peaks near 55% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
149
250
350
451
551
652
752
852
952
1052
1151
1251
1350
1449
1549
1648
1748
1847
1947
2048
2148
2248
2349
2450
2550
2651
2752
2853
2954
3055
3155

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 66% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1012475
2012475
3012376
4012376
5012376
6012376
7012376
8002377
9002377
10002476
11012574
12012574
13012673
14012772
15012871
16012970
17113068
18113167
19123265
20123364
21133462
22133561
23143659
24153757
25153856
26263953
27274150
28284248
29294346
302104444
312114542

Wind in August

Winds average 13 km/h in August.

Across August, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light 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 5:33 AM to 5:53 AM, and sunset from 7:08 PM to 6:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.65:337:08
213.65:337:07
313.55:347:07
413.55:357:06
513.55:357:05
613.55:367:04
713.45:377:03
813.45:377:02
913.45:387:01
1013.45:397:00
1113.35:406:59
1213.35:406:58
1313.35:416:57
1413.25:426:56
1513.25:426:55
1613.25:436:54
1713.25:446:53
1813.15:446:52
1913.15:456:51
2013.15:466:50
2113.05:466:48
2213.05:476:47
2313.05:486:46
2412.95:486:45
2512.95:496:44
2612.95:496:42
2712.95:506:41
2812.85:516:40
2912.85:516:39
3012.85:526:37
3112.75:536:36

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.04 kWh/m².

For context, solar energy here swings from a low near 2.72 kWh/m² to a high of 5.12 kWh/m² in July across the year — August's 5.04 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.1Bright
125.1Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
224.9Bright
234.9Bright
244.9Bright
254.8Bright
264.8Bright
274.8Bright
284.7Bright
294.7Bright
304.6Bright
314.6Bright
Planning a trip in August

Hazard calendar for Tsuma

In seasonPeak

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

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

Tsuma's rainy season runs April–September, 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 August a good time to visit Tsuma?

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

4.9
Sightseeing
8th-best month of the year
6.1
Beach & pool
1st-best month of the year

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

What to pack for Tsuma in August

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

In August, Tsuma sees daytime highs around 29°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

Sea temperature near Tsuma 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 at the nearest coast (about 21 km away) is warmest in August at about 28°C and coldest in February near 18°C.

It's comfortable for a long swim from Apr 22 to Jan 1 — about 8.4 months when the water holds above 20°C.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan19Cool
Feb18Cool
Mar18Cool
Apr20Cool
May22Refreshing
Jun24Refreshing
Jul26Warm
Aug28Warm
Sep27Warm
Oct25Warm
Nov23Refreshing
Dec21Refreshing

UV index in Tsuma 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 Tsuma peaks around June 22 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 highHighModerateJun 22UV 11Jan 1UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar7High
Apr8Very high
May9Very high
Jun11Extreme
Jul11Extreme
Aug10Very high
Sep10Very high
Oct7High
Nov5Moderate
Dec3Moderate

Air quality in Tsuma 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 Tsuma is worst in March — around 26 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (July, 14 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2025 µg/m³Jul 2214 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb20Moderate
Mar26Moderate
Apr23Moderate
May22Moderate
Jun18Moderate
Jul14Moderate
Aug14Moderate
Sep14Moderate
Oct15Moderate
Nov16Moderate
Dec15Moderate
Location & terrain

Where is Tsuma?

Tsuma sits at 32.1°N, 131.4°E, 11 m above sea level, in Japan. The nearest listed city is Saito, 2.0 km away.

Topography around Tsuma

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

Within 3 km, the terrain around Tsuma has only modest variations in elevation — a maximum elevation change of 131 m around an average of 30 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,020 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,714 m.

The land around Tsuma is covered by cropland (38%), trees (29%) and artificial surfaces (23%) within 3 km, trees (59%) within 16 km, and trees (64%) and water (28%) within 80 km.

3 km
131 m
16 km
1,020 m
80 km
1,714 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Saito 2.0 km · Shintomi 9.0 km · Takanabe 10 km · Kawaminami 14 km · Honjō 14 km · Miyazaki 20 km · Kobayashi 41 km · Hyūga 42 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 Tsuma (32.1°, 131.4°, elevation 11 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).