Mizunami weather in August

In August, Mizunami sees average daytime highs of 30°C and overnight lows near 23°C, with 168 mm of rain across 16.2 wet days and about 13.3 hours of daylight. It is the 1st-warmest and 6th-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 27% 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 Mizunami's 8th-clearest and 12th-windiest month. For the whole year in context, see Mizunami's year-round climate.

Daytime high
30°
1st warmest
Overnight low
23°
12th coldest
Rainfall
168 mm
16.2 wet days
Daylight
13 h 18 min
5:15 AM – 6:35 PM
Cloud cover
62%
8th clearest
Wind
7 km/h
12th windiest
Solar energy
5.05 kWh/m²
Travel score
4.1
out of 10

Mizunami is city in Gifu Prefecture, Japan.

Density
216/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 30°C through the month.

A typical August day in Mizunami reaches about 30°C in the afternoon and slips back to 23°C overnight — a 8°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 2°C warmer than July and about 4°C warmer than September.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13123
23123
33123
43123
53123
63123
73123
83123
93123
103123
113123
123123
133123
143123
153123
163023
173023
183023
193023
203023
213023
223023
233022
243022
253022
263022
273022
283022
292922
302922
312922

How August really feels in Mizunami

Once humidity and wind are folded in, August averages 26 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
26
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.

Mizunami weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -1°698.12.79.91.1
Feb / -0°797.82.110.71.6
Mar12° / 13911.50.811.73.3
Apr18° / 15212.10.112.95.3
May22° / 13°17812.5013.86.2
Jun25° / 18°23416.6014.35.4
Jul29° / 22°26818.6014.14.4
Aug30° / 23°16816.2013.34.1
Sep27° / 19°23215012.25.5
Oct21° / 13°20012.3011.16.3
Nov15° / 1068.9010.15.0
Dec10° / 707.50.99.72.4

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 19% of August, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14456
24456
34456
44456
54654
64753
74753
84654
94654
104654
114555
124555
134654
144654
154555
164555
174555
184555
194654
204654
214654
224654
234654
244654
254555
264555
274555
284555
294555
304555
314456

Chance of precipitation in August

Any precipitation

Mizunami gets around 168 mm of rain over 16.2 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 53% and peaks near 55% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
151
251
351
451
551
651
751
851
951
1052
1152
1253
1353
1453
1553
1654
1754
1854
1954
2054
2154
2254
2354
2454
2554
2654
2754
2854
2955
3055
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 61% of days. Sticky, muggy-or-worse air turns up on roughly 93% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10228682
20228682
30227692
40227683
50227683
60226693
70226693
80226693
90226693
101225693
111225693
121225693
131225693
141226692
151326682
161326682
171427662
181427662
191528642
201629622
211730602
221831582
231832572
241934551
2511035531
2611136511
2711237481
2811338461
2921439441
3021440421
3121541411

Wind in August

Winds average 7 km/h in August, the calmest month.

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
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
297calm
307calm
317calm

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 5:03 AM to 5:26 AM, and sunset from 6:51 PM to 6:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.85:036:51
213.85:046:50
313.75:056:49
413.75:056:48
513.75:066:47
613.75:076:46
713.65:086:45
813.65:086:44
913.65:096:43
1013.55:106:42
1113.55:116:41
1213.55:126:40
1313.45:126:39
1413.45:136:38
1513.45:146:37
1613.35:156:35
1713.35:166:34
1813.35:166:33
1913.25:176:32
2013.25:186:30
2113.25:196:29
2213.15:196:28
2313.15:206:27
2413.15:216:25
2513.05:226:24
2613.05:236:23
2713.05:236:21
2812.95:246:20
2912.95:256:18
3012.95:266:17
3112.85:266:16

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.05 kWh/m².

For context, solar energy here swings from a low near 2.49 kWh/m² to a high of 5.42 kWh/m² in May across the year — August's 5.05 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.3Bright
35.3Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.1Bright
125.1Bright
135.1Bright
145.1Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
244.8Bright
254.8Bright
264.8Bright
274.7Bright
284.7Bright
294.7Bright
304.6Bright
314.6Bright
Planning a trip in August

Is August a good time to visit Mizunami?

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

4.1
Sightseeing
8th-best month of the year
5.8
Beach & pool
1st-best month of the year

August is a reasonable time to visit Mizunami for sightseeing.

What to pack for Mizunami in August

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

In August, Mizunami sees daytime highs around 30°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 Mizunami 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 64 km away) is warmest in August at about 27°C and coldest in February near 13°C.

It's comfortable for a long swim from May 31 to Nov 9 — about 5.4 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar14Bracing
Apr15Cool
May18Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct22Refreshing
Nov19Cool
Dec17Cool

UV index in Mizunami in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mizunami peaks around July 12 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 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 highModerateJul 12UV 10Dec 23UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun10Very high
Jul10Very high
Aug8Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Mizunami 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 Mizunami is worst in April — around 22 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (December, 13 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1322 µg/m³Dec 1813 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb17Moderate
Mar21Moderate
Apr22Moderate
May21Moderate
Jun19Moderate
Jul15Moderate
Aug14Moderate
Sep14Moderate
Oct15Moderate
Nov15Moderate
Dec13Moderate
Location & terrain

Where is Mizunami?

Mizunami sits at 35.4°N, 137.3°E, 157 m above sea level, in Japan. The nearest listed city is Toki, 6.0 km away.

Topography around Mizunami

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

Within 3 km, the terrain around Mizunami has only modest variations in elevation — a maximum elevation change of 242 m around an average of 229 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 762 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,044 m.

The land around Mizunami is covered by trees (68%) and artificial surfaces (25%) within 3 km, trees (83%) within 16 km, and trees (74%) within 80 km.

3 km
242 m
16 km
762 m
80 km
3,044 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Toki 6.0 km · Mitake 12 km · Tajimi 12 km · Ena 15 km · Kani 18 km · Seto 20 km · Minokamo 24 km · Nakatsugawa 26 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 Mizunami (35.3667°, 137.25°, elevation 157 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. 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).