Aomori weather in August

In August, Aomori sees average daytime highs of 26°C and overnight lows near 20°C, with 169 mm of rain across 15.5 wet days and about 13.6 hours of daylight. It is the 1st-warmest and 1st-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 16% of the time in August, and the air most often feels muggy.

Daylight stretches from about 14 h 12 min at the start of August to 13 hours by month's end. Set against the rest of the year, August is Aomori's 9th-clearest and 12th-windiest month. For the whole year in context, see Aomori's year-round climate.

Daytime high
26°
1st warmest
Overnight low
20°
12th coldest
Rainfall
169 mm
15.5 wet days
Daylight
13 h 36 min
4:52 AM – 6:30 PM
Cloud cover
71%
9th clearest
Wind
8 km/h
12th windiest
Solar energy
4.43 kWh/m²
Travel score
5.7
out of 10

Aomori is city in Aomori Prefecture, Japan.

Density
362/km²
people per km²
Founded
2005

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 Aomori reaches about 26°C in the afternoon and slips back to 20°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 30°C. Set against its neighbours, August runs about 2°C warmer than July and about 4°C warmer than September.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12720
22720
32720
42720
52720
62720
72720
82720
92720
102720
112720
122720
132720
142620
152620
162620
172620
182620
192620
202619
212619
222619
232619
242619
252619
262619
272619
282519
292519
302518
312518

How August really feels in Aomori

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.

Aomori weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-0° / -6°6513.218.39.40.0
Feb / -5°651315.610.40.0
Mar / -2°8615.111.711.70.3
Apr12° / 8613.52.713.13.0
May18° / 10112.90.114.25.3
Jun21° / 14°10412.4014.95.9
Jul25° / 18°15815.4014.65.8
Aug26° / 20°16915.5013.65.7
Sep23° / 15°14513012.36.0
Oct16° / 112130.110.94.7
Nov / 8714.64.79.71.7
Dec / -3°8214.6159.10.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 16% of August, with mostly cloudy or overcast conditions the remaining 68%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13268
23268
33367
43268
53367
63367
73367
83268
93367
103367
113367
123367
133367
143268
153268
163268
173367
183367
193367
203367
213466
223268
233268
243367
253367
263268
273268
283169
293169
303268
313169

Chance of precipitation in August

Any precipitation

Aomori gets around 169 mm of rain over 15.5 wet days in August, the wettest month. 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 (%)
146
247
347
447
547
648
748
848
948
1049
1149
1249
1350
1450
1550
1651
1751
1851
1951
2051
2151
2251
2351
2451
2551
2651
2750
2850
2950
3050
3149

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 36% of days. Sticky, muggy-or-worse air turns up on roughly 64% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
117193835
217193835
317193836
417193836
517193736
617193736
717193735
817203735
917203734
1017213834
1117213833
1217223833
1317223832
1417233831
1527233830
1627243829
1727243829
1828253828
1928253827
2029263726
21310263725
22310273624
23311273623
24312283622
25312293521
26313293520
27314303419
28315313318
29316323217
30316333116
31317343015

Wind in August

Winds average 8 km/h in August, the calmest month.

Across August, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 12 min at the start of August to 13 hours 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 5:07 AM, and sunset from 6:49 PM to 6:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.24:376:49
214.24:386:48
314.14:396:47
414.14:406:46
514.14:416:45
614.04:426:44
714.04:436:42
814.04:446:41
913.94:456:40
1013.94:466:39
1113.84:476:37
1213.84:486:36
1313.84:496:35
1413.74:506:33
1513.74:516:32
1613.64:526:30
1713.64:536:29
1813.64:546:27
1913.54:556:26
2013.54:566:25
2113.44:576:23
2213.44:586:21
2313.34:596:20
2413.35:006:18
2513.35:016:17
2613.25:026:15
2713.25:036:14
2813.15:046:12
2913.15:056:10
3013.05:066:09
3113.05:076:07

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.43 kWh/m².

For context, solar energy here swings from a low near 1.77 kWh/m² to a high of 5.5 kWh/m² in May across the year — August's 4.43 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.6Bright
104.6Bright
114.6Bright
124.5Bright
134.5Bright
144.5Bright
154.4Bright
164.4Bright
174.4Bright
184.4Bright
194.3Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.2Bright
254.2Bright
264.2Bright
274.2Bright
284.2Bright
294.1Bright
304.1Bright
314.1Bright
Planning a trip in August

Hazard calendar for Aomori

In seasonPeak

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

Aomori 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 Aomori?

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

5.7
Sightseeing
4th-best month of the year
5.5
Beach & pool
1st-best month of the year

August is a reasonable time to visit Aomori for sightseeing.

What to pack for Aomori in August

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

In August, Aomori sees daytime highs around 26°C and nights near 20°C. Pack rain gear. Worth having: light clothes. About 16 days see rain.

rain gearlight clothes

Sea temperature near Aomori in August

The nearest coast averages about 23°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 14 km away) is warmest in August at about 23°C and coldest in March near 8°C.

It's comfortable for a long swim from Jul 24 to Oct 7 — about 2.5 months when the water holds above 20°C.

5°10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan10Bracing
Feb8Bracing
Mar8Bracing
Apr8Bracing
May11Bracing
Jun15Cool
Jul19Cool
Aug23Refreshing
Sep22Refreshing
Oct19Cool
Nov15Cool
Dec12Bracing

UV index in Aomori 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 Aomori peaks around August 19 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighVery highHighModerateLowAug 19UV 8Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar3Moderate
Apr6High
May8Very high
Jun8Very high
Jul5Moderate
Aug9Very high
Sep7High
Oct4Moderate
Nov2Moderate
Dec2Low

Air quality in Aomori 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 Aomori is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1421 µg/m³Dec 1510 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar20Moderate
Apr21Moderate
May19Moderate
Jun14Moderate
Jul12Moderate
Aug12Good
Sep12Good
Oct12Good
Nov10Good
Dec10Good
Location & terrain

Where is Aomori?

Aomori sits at 40.8°N, 140.7°E, 7 m above sea level, in Japan. The nearest listed city is Namioka, 17 km away.

Topography around Aomori

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

Within 3 km, the terrain around Aomori has only modest variations in elevation — a maximum elevation change of 60 m around an average of 7 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 859 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,715 m.

The land around Aomori is covered by artificial surfaces (71%) within 3 km, trees (61%) and water (23%) within 16 km, and trees (52%) and water (39%) within 80 km.

3 km
60 m
16 km
859 m
80 km
1,715 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Namioka 17 km · Kuroishi 23 km · Goshogawara 25 km · Tsugaru 28 km · Hirakawa 29 km · Shimokizukuri 30 km · Hirosaki 33 km · Toyota 44 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 Aomori (40.8167°, 140.7333°, elevation 7 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).