Tsu weather in August

In August, Tsu sees average daytime highs of 30°C and overnight lows near 24°C, with 179 mm of rain across 15.8 wet days and about 13.3 hours of daylight. It is the 1st-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 29% of the time in August, and the air most often feels oppressive.

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 Tsu's 8th-clearest and 10th-windiest month. For the whole year in context, see Tsu's year-round climate.

Daytime high
30°
1st warmest
Overnight low
24°
12th coldest
Rainfall
179 mm
15.8 wet days
Daylight
13 h 18 min
5:19 AM – 6:37 PM
Cloud cover
60%
8th clearest
Wind
10 km/h
10th windiest
Solar energy
5.46 kWh/m²
Travel score
4.4
out of 10

Tsu is city in Mie Prefecture, Japan.

Density
386/km²
people per km²
Founded
1889

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 30°C through the month.

A typical August day in Tsu reaches about 30°C in the afternoon and slips back to 24°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 33°C. Set against its neighbours, August runs about 1°C warmer than July and about 3°C warmer than September.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13024
23024
33024
43024
53024
63024
73024
83024
93024
103024
113024
123024
133024
143024
153024
163024
173024
183024
193024
203024
213024
223024
233024
243024
252924
262924
272923
282923
292923
302923
312923

How August really feels in Tsu

Once humidity and wind are folded in, August averages 28 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
28
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.

Tsu weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 686.40.89.91.6
Feb / 737.61.110.71.9
Mar13° / 12911.60.411.73.4
Apr17° / 10°14610.6012.85.4
May22° / 14°17511.9013.86.2
Jun25° / 19°23515.3014.35.6
Jul29° / 23°22117.9014.14.5
Aug30° / 24°17915.8013.34.4
Sep27° / 21°25315.5012.25.6
Oct21° / 15°23011.8011.16.4
Nov16° / 1068.2010.25.3
Dec11° / 697.20.49.72.9

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 18% of August, with mostly cloudy or overcast conditions the remaining 53%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24654
34753
44654
54753
64753
74852
84852
94951
104852
114852
124852
134852
144753
154753
164753
174753
184753
194852
204852
214753
224753
234753
244654
254555
264555
274555
284555
294456
304555
314555

Chance of precipitation in August

Any precipitation

Tsu gets around 179 mm of rain over 15.8 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 51% and peaks near 55% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
153
253
352
452
552
651
751
851
951
1050
1150
1250
1350
1450
1550
1650
1750
1850
1950
2050
2150
2251
2351
2451
2552
2652
2753
2853
2954
3054
3155

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the oppressive band about 62% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10186823
20186823
30186724
40186724
50186625
60196525
70196426
801106326
901106326
1001106326
1101116226
1201116226
1301116226
1401126126
1501126225
1612135925
1712136024
1812146023
1912156022
2013165921
2113175920
2213176019
2314185918
2414195917
2515205816
2615215914
2715225913
2816235812
2916245811
3016265710
311627579

Wind in August

Winds average 10 km/h in August.

Across August, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
199calm
209calm
219calm
229calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

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 5:07 AM to 5:30 AM, and sunset from 6:53 PM to 6:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.85:076:53
213.75:086:52
313.75:096:51
413.75:096:50
513.65:106:49
613.65:116:48
713.65:126:47
813.65:136:46
913.55:136:45
1013.55:146:44
1113.55:156:43
1213.45:166:42
1313.45:166:41
1413.45:176:40
1513.35:186:39
1613.35:196:37
1713.35:196:36
1813.25:206:35
1913.25:216:34
2013.25:226:33
2113.15:226:31
2213.15:236:30
2313.15:246:29
2413.05:256:27
2513.05:256:26
2613.05:266:25
2712.95:276:23
2812.95:286:22
2912.95:286:21
3012.85:296:19
3112.85:306:18

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.46 kWh/m².

For context, solar energy here swings from a low near 2.48 kWh/m² to a high of 5.59 kWh/m² in May across the year — August's 5.46 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
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.6Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.4Bright
185.4Bright
195.4Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.2Bright
255.2Bright
265.1Bright
275.1Bright
285.1Bright
295.0Bright
305.0Bright
314.9Bright
Planning a trip in August

Hazard calendar for Tsu

In seasonPeak

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

Tsu 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 Tsu?

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

4.4
Sightseeing
8th-best month of the year
5.9
Beach & pool
1st-best month of the year

August is a reasonable time to visit Tsu for sightseeing.

What to pack for Tsu in August

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

In August, Tsu sees daytime highs around 30°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

Sea temperature near Tsu in August

The nearest coast averages about 27°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 16 km away) is warmest in August at about 27°C and coldest in February near 14°C.

It's comfortable for a long swim from May 31 to Nov 11 — about 5.4 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb14Bracing
Mar14Bracing
Apr15Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov20Cool
Dec17Cool

UV index in Tsu 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 Tsu peaks around June 22 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJun 22UV 10Dec 23UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7High
May8Very high
Jun10Very high
Jul10Very high
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Tsu 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 Tsu is worst in March — around 26 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (July, 16 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2326 µg/m³Jul 2316 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb21Moderate
Mar26Moderate
Apr26Moderate
May24Moderate
Jun20Moderate
Jul16Moderate
Aug16Moderate
Sep17Moderate
Oct19Moderate
Nov21Moderate
Dec18Moderate
Location & terrain

Where is Tsu?

Tsu sits at 34.7°N, 136.5°E, 1 m above sea level, in Japan. The nearest listed city is Kawage, 8.0 km away.

Topography around Tsu

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

Within 3 km, the terrain around Tsu has only modest variations in elevation — a maximum elevation change of 51 m around an average of 6 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 816 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,738 m.

The land around Tsu is covered by artificial surfaces (49%) and water (31%) within 3 km, water (37%) and trees (27%) within 16 km, and trees (44%) and water (29%) within 80 km.

3 km
51 m
16 km
816 m
80 km
1,738 m
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Kawage 8.0 km · Hisai-motomachi 9.0 km · Kameyama 14 km · Matsusaka 17 km · Suzuka 18 km · Saikū 25 km · Yokkaichi 28 km · Komono 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 Tsu (34.7333°, 136.5167°, elevation 1 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).