Tōno weather in August

In August, Tōno sees average daytime highs of 26°C and overnight lows near 19°C, with 164 mm of rain across 15.5 wet days and about 13.5 hours of daylight. It is the 1st-warmest and 3rd-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 15% of the time in August, and the air most often feels muggy.

Daylight stretches from about 14 h 06 min at the start of August to 12 h 54 min by month's end. Set against the rest of the year, August is Tōno's 10th-clearest and 11th-windiest month. For the whole year in context, see Tōno's year-round climate.

Daytime high
26°
1st warmest
Overnight low
19°
12th coldest
Rainfall
164 mm
15.5 wet days
Daylight
13 h 36 min
4:51 AM – 6:25 PM
Cloud cover
74%
10th clearest
Wind
7 km/h
11th windiest
Solar energy
4.41 kWh/m²
Travel score
5.7
out of 10

Tōno is city in Iwate Prefecture, Japan.

Density
32/km²
people per km²
Founded
1954

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 26°C through the month.

A typical August day in Tōno reaches about 26°C in the afternoon and slips back to 19°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 30°C. Set against its neighbours, August runs about 1°C warmer than July and about 4°C warmer than September.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12620
22620
32620
42620
52620
62620
72620
82620
92620
102620
112620
122620
132620
142620
152620
162620
172620
182619
192619
202619
212519
222519
232519
242519
252519
262519
272519
282519
292519
302518
312518

How August really feels in Tōno

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.

Tōno weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -6°548.689.50.0
Feb / -6°508.37.510.50.0
Mar / -2°9512.17.211.70.6
Apr13° / 102132.1133.2
May17° / 11712.4014.15.2
Jun21° / 14°12912.9014.75.6
Jul24° / 18°16716014.55.6
Aug26° / 19°16415.5013.55.7
Sep22° / 15°17214.1012.35.8
Oct17° / 13511.20115.0
Nov10° / 7410.51.49.82.4
Dec / -2°6410.26.69.30.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 12% of August, with mostly cloudy or overcast conditions the remaining 73%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12575
22674
32674
42773
52773
62674
72575
82674
92773
102773
112773
122773
132674
142674
152674
162674
172674
182674
192872
202872
212872
222872
232872
242872
252872
262773
272773
282773
292773
302773
312872

Chance of precipitation in August

Any precipitation

Tōno gets around 164 mm of rain over 15.5 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 49% and peaks near 51% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
145
246
346
447
547
648
748
849
949
1049
1150
1250
1351
1451
1551
1651
1751
1851
1950
2050
2150
2250
2350
2450
2550
2650
2750
2851
2951
3051
3151

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 41% of days. Sticky, muggy-or-worse air turns up on roughly 66% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
117184629
217174530
317174530
417174431
517174431
617174431
717174431
817174431
917174431
1017184430
1117184430
1217194429
1317194429
1417204428
1527204427
1627214326
1728224326
1828234225
1929244125
2029254024
21310253923
22310263823
23311273722
24311283621
25312293620
26313303519
27313313418
28314323317
29315333317
30315343216
31316343115

Wind in August

Winds average 7 km/h in August.

Across August, daily wind ranges from about 6 km/h on the calmest days to 7 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
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 06 min 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 72 minutes over August. Sunrise moves from 4:37 AM to 5:06 AM, and sunset from 6:43 PM to 6:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.14:376:43
214.14:386:41
314.04:396:40
414.04:406:39
514.04:416:38
613.94:426:37
713.94:436:36
813.94:446:35
913.84:456:34
1013.84:466:32
1113.74:476:31
1213.74:486:30
1313.74:486:29
1413.64:496:27
1513.64:506:26
1613.64:516:25
1713.54:526:23
1813.54:536:22
1913.44:546:20
2013.44:556:19
2113.44:566:18
2213.34:576:16
2313.34:586:15
2413.24:596:13
2513.25:006:12
2613.25:016:10
2713.15:026:09
2813.15:036:07
2913.05:046:05
3013.05:056:04
3112.95:066:02

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.41 kWh/m².

For context, solar energy here swings from a low near 2.07 kWh/m² to a high of 5.38 kWh/m² in May across the year — August's 4.41 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.6Bright
104.6Bright
114.6Bright
124.5Bright
134.5Bright
144.5Bright
154.4Bright
164.4Bright
174.3Bright
184.3Bright
194.3Bright
204.3Bright
214.2Bright
224.2Bright
234.2Bright
244.2Bright
254.1Bright
264.1Bright
274.1Bright
284.1Bright
294.0Bright
304.0Bright
314.0Moderate
Planning a trip in August

Hazard calendar for Tōno

In seasonPeak

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

Tōno 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 Tōno?

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

5.7
Sightseeing
2nd-best month of the year
5.4
Beach & pool
1st-best month of the year

August is a reasonable time to visit Tōno for sightseeing.

What to pack for Tōno in August

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

In August, Tōno sees daytime highs around 26°C and nights near 19°C. Pack rain gear. Worth having: light clothes. About 16 days see rain.

rain gearlight clothes

Sea temperature near Tōno in August

The nearest coast averages about 22°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 36 km away) is warmest in August at about 22°C and coldest in March near 7°C.

It's comfortable for a long swim from Jul 26 to Oct 1 — about 2.2 months when the water holds above 20°C.

5°10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan10Bracing
Feb8Bracing
Mar7Bracing
Apr9Bracing
May12Bracing
Jun16Cool
Jul19Cool
Aug22Refreshing
Sep21Refreshing
Oct19Cool
Nov16Cool
Dec13Bracing

UV index in Tōno 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 Tōno peaks around August 19 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighVery highHighModerateLowAug 19UV 9Jan 1UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun8Very high
Jul6High
Aug9Very high
Sep7Very high
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Tōno 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 Tōno is worst in April — around 19 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1319 µg/m³Dec 179 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar18Moderate
Apr19Moderate
May17Moderate
Jun12Moderate
Jul11Good
Aug9Good
Sep10Good
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Tōno?

Tōno sits at 39.3°N, 141.5°E, 328 m above sea level, in Japan. The nearest listed city is Kamaishi, 29 km away.

Topography around Tōno

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

Within 3 km, the terrain around Tōno has large variations in elevation — a maximum elevation change of 667 m around an average of 405 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,177 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,980 m.

The land around Tōno is covered by trees (70%) within 3 km, trees (89%) within 16 km, and trees (66%) and water (25%) within 80 km.

3 km
667 m
16 km
1,177 m
80 km
1,980 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Kamaishi 29 km · Ōfunato 31 km · Rikuzen-Takata 35 km · Kitakami 36 km · Hanamaki 37 km · Ōshū 37 km · Kanegasaki 38 km · Yamada 40 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 Tōno (39.3167°, 141.5333°, elevation 328 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).