Imizu weather in August

In August, Imizu sees average daytime highs of 29°C and overnight lows near 23°C, with 178 mm of rain across 15.8 wet days and about 13.4 hours of daylight. It is the 1st-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 30°C in the first days to 28°C by the end. 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 54 min at the start of August to 12 h 54 min by month's end. Set against the rest of the year, August is Imizu's 4th-clearest and 12th-windiest month. For the whole year in context, see Imizu's year-round climate.

Daytime high
29°
1st warmest
Overnight low
23°
12th coldest
Rainfall
178 mm
15.8 wet days
Daylight
13 h 24 min
5:13 AM – 6:38 PM
Cloud cover
61%
4th clearest
Wind
6 km/h
12th windiest
Solar energy
5.14 kWh/m²
Travel score
4.8
out of 10

Imizu is city in Toyama Prefecture, Japan.

Density
829/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

Highs ease over the month, from about 30°C in the first days to 28°C by the end.

A typical August day in Imizu reaches about 29°C in the afternoon and slips back to 23°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 32°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)
13023
23023
33023
43023
53023
63023
73023
83023
93023
103023
112923
122923
132923
142923
152923
162923
172923
182923
192923
202923
212923
222923
232922
242822
252822
262822
272822
282822
292822
302822
312822

How August really feels in Imizu

Once humidity and wind are folded in, August averages 14 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
14
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.

Imizu weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -0°21022.917.99.80.0
Feb / -0°16419.114.610.60.1
Mar / 17918.98.811.71.5
Apr15° / 15014.51.312.94.2
May21° / 13°15614.6013.95.8
Jun24° / 18°20015.4014.55.7
Jul28° / 22°27318.6014.34.8
Aug29° / 23°17815.8013.44.8
Sep25° / 19°21115.6012.25.7
Oct19° / 13°18014.60115.5
Nov14° / 16916.81.2103.3
Dec / 2142210.89.50.9

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 (%)
14753
24753
34852
44852
54852
64852
74951
84852
94852
104852
114852
124852
134852
144753
154753
164753
174753
184753
194753
204753
214654
224654
234654
244654
254555
264456
274456
284357
294258
304258
314159

Chance of precipitation in August

Any precipitation

Imizu gets around 178 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 54% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
150
249
349
449
549
649
749
849
949
1050
1150
1251
1351
1452
1552
1652
1753
1853
1953
2053
2153
2253
2353
2453
2553
2653
2753
2853
2953
3053
3154

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 58% of days. Sticky, muggy-or-worse air turns up on roughly 94% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10131662
20130672
30130672
40129673
50129673
60128683
70128683
80128683
90128692
100128692
110128692
120228682
131228672
141228672
151329652
161330642
171431622
181432612
191533601
201535581
211636561
221738531
231739521
241841481
251943461
2611044441
2711046411
2811147391
2921248371
3021349351
3121450331

Wind in August

Winds average 6 km/h in August, the calmest month.

Across August, daily wind ranges from about 6 km/h on the calmest days to 6 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
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 54 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 60 minutes over August. Sunrise moves from 5:01 AM to 5:26 AM, and sunset from 6:55 PM to 6:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:016:55
213.95:016:54
313.85:026:53
413.85:036:52
513.85:046:51
613.75:056:50
713.75:066:49
813.75:066:47
913.75:076:46
1013.65:086:45
1113.65:096:44
1213.65:106:43
1313.55:116:42
1413.55:116:41
1513.55:126:39
1613.45:136:38
1713.45:146:37
1813.35:156:36
1913.35:166:34
2013.35:166:33
2113.25:176:32
2213.25:186:30
2313.25:196:29
2413.15:206:27
2513.15:216:26
2613.15:216:25
2713.05:226:23
2813.05:236:22
2912.95:246:20
3012.95:256:19
3112.95:266:17

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.14 kWh/m².

For context, solar energy here swings from a low near 1.94 kWh/m² to a high of 5.68 kWh/m² in May across the year — August's 5.14 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.4Bright
75.4Bright
85.4Bright
95.3Bright
105.3Bright
115.3Bright
125.2Bright
135.2Bright
145.2Bright
155.1Bright
165.1Bright
175.1Bright
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 Imizu

In seasonPeak

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

Imizu 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 Imizu?

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

4.8
Sightseeing
5th-best month of the year
6.0
Beach & pool
1st-best month of the year

August is a reasonable time to visit Imizu for sightseeing.

What to pack for Imizu in August

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

In August, Imizu sees daytime highs around 29°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

Sea temperature near Imizu 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 offshore is warmest in August at about 27°C and coldest in March near 10°C.

It's comfortable for a long swim from Jun 18 to Nov 3 — about 4.6 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb11Bracing
Mar10Bracing
Apr11Bracing
May15Cool
Jun20Cool
Jul24Refreshing
Aug27Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Imizu 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 Imizu peaks around August 13 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateAug 13UV 10Dec 20UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul10Very high
Aug10Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Imizu 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 Imizu is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1621 µg/m³Dec 139 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar20Moderate
Apr21Moderate
May20Moderate
Jun18Moderate
Jul14Moderate
Aug12Good
Sep10Good
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Imizu?

Imizu sits at 36.8°N, 137.1°E, 3 m above sea level, in Japan. The nearest listed city is Nishishinminato, 5.0 km away.

Topography around Imizu

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

Within 3 km, the terrain around Imizu has only modest variations in elevation — a maximum elevation change of 19 m around an average of 1 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 263 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,123 m.

The land around Imizu is covered by water (45%) and artificial surfaces (30%) within 3 km, water (43%) and artificial surfaces (24%) within 16 km, and trees (53%) and water (36%) within 80 km.

3 km
19 m
16 km
263 m
80 km
3,123 m
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Nishishinminato 5.0 km · Takaoka 10 km · Toyama 11 km · Himi 15 km · Himimachi 16 km · Gohyakkoku 21 km · Namerikawa 21 km · Yatsuomachi-higashikumisaka 22 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 Imizu (36.7683°, 137.1257°, elevation 3 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).