Hadano weather in August

In August, Hadano sees average daytime highs of 27°C and overnight lows near 24°C, with 154 mm of rain across 13.5 wet days and about 13.3 hours of daylight. It is the 1st-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°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 Hadano's 5th-clearest and 11th-windiest month. For the whole year in context, see Hadano's year-round climate.

Daytime high
27°
1st warmest
Overnight low
24°
12th coldest
Rainfall
154 mm
13.5 wet days
Daylight
13 h 18 min
5:07 AM – 6:28 PM
Cloud cover
61%
5th clearest
Wind
12 km/h
11th windiest
Solar energy
4.96 kWh/m²
Travel score
6.0
out of 10

Hadano is city in Kanagawa prefecture, Japan.

Density
1,579/km²
people per km²
Founded
1955

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 27°C through the month.

A typical August day in Hadano reaches about 27°C in the afternoon and slips back to 24°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 29°C. Set against its neighbours, August runs about 1°C warmer than July and about 3°C warmer than September.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12724
22724
32724
42724
52724
62724
72724
82724
92724
102724
112724
122724
132724
142724
152724
162724
172724
182724
192724
202724
212724
222724
232724
242724
252724
262723
272623
282623
292623
302623
312623

Hadano 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 / 98102.39.91.7
Feb / 10711.32.710.71.7
Mar12° / 18616.31.611.72.6
Apr15° / 11°17614.40.312.94.2
May19° / 15°18113.6013.85.5
Jun22° / 19°23115.9014.35.3
Jul25° / 22°20014.7014.15.8
Aug27° / 24°15413.5013.36.0
Sep24° / 21°24115.5012.25.8
Oct20° / 17°26715.5011.15.5
Nov16° / 12°14113.1010.14.5
Dec11° / 9410.90.39.72.8

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 15% of August, with mostly cloudy or overcast conditions the remaining 56%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14159
24159
34258
44357
54357
64357
74456
84555
94456
104456
114456
124456
134456
144555
154555
164555
174555
184555
194555
204654
214753
224654
234654
244654
254654
264654
274555
284555
294456
304456
314357

Chance of precipitation in August

Any precipitation

Hadano gets around 154 mm of rain over 13.5 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 44% and peaks near 49% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
141
241
342
442
542
642
742
843
943
1043
1143
1243
1343
1443
1543
1643
1743
1843
1944
2044
2144
2244
2344
2445
2545
2645
2746
2847
2947
3048
3149

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 95% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
104106125
204106026
30496027
40496027
50396028
60396028
70495829
80495829
90495829
100495829
110495928
1204105828
1304105927
1404115827
1514115826
1614125726
1714135725
1814135725
1914145724
2015155623
2115165622
2215175621
2315185620
2415195619
2515205618
2615215716
2715225715
2816235614
2916245613
3016255612
3117265610

Wind in August

Winds average 12 km/h in August.

Across August, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

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 4:55 AM to 5:19 AM, and sunset from 6:43 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.84:556:43
213.84:566:42
313.74:576:41
413.74:576:41
513.74:586:40
613.74:596:39
713.65:006:38
813.65:016:37
913.65:016:35
1013.55:026:34
1113.55:036:33
1213.55:046:32
1313.45:046:31
1413.45:056:30
1513.45:066:29
1613.35:076:28
1713.35:086:26
1813.35:086:25
1913.25:096:24
2013.25:106:23
2113.25:116:21
2213.15:126:20
2313.15:126:19
2413.15:136:17
2513.05:146:16
2613.05:156:15
2713.05:156:13
2812.95:166:12
2912.95:176:11
3012.95:186:09
3112.85:196:08

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.96 kWh/m².

For context, solar energy here swings from a low near 2.33 kWh/m² to a high of 5.18 kWh/m² in May across the year — August's 4.96 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.1Bright
95.1Bright
105.1Bright
115.1Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
174.9Bright
184.9Bright
194.9Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.7Bright
254.7Bright
264.7Bright
274.6Bright
284.6Bright
294.6Bright
304.5Bright
314.5Bright
Planning a trip in August

Hazard calendar for Hadano

In seasonPeak

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

Hadano 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 Hadano?

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

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

August is a reasonable time to visit Hadano for sightseeing.

What to pack for Hadano in August

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

In August, Hadano sees daytime highs around 27°C and nights near 24°C. Worth packing: light clothes, rain gear and sun protection. About 14 days see rain.

light clothesrain gearsun protection

Sea temperature near Hadano in August

The nearest coast averages about 26°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 29 km away) is warmest in August at about 26°C and coldest in February near 15°C.

It's comfortable for a long swim from May 31 to Nov 26 — about 5.9 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar16Cool
Apr17Cool
May19Cool
Jun21Refreshing
Jul24Refreshing
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov21Refreshing
Dec18Cool

UV index in Hadano 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 Hadano peaks around July 20 at about 10 (extreme) — 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 highExtremeVery highHighModerateJul 20UV 10Dec 23UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May9Very high
Jun9Very high
Jul10Extreme
Aug10Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Hadano 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 Hadano is worst in April — around 26 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1525 µg/m³Dec 1612 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb25Moderate
Mar23Moderate
Apr26Moderate
May21Moderate
Jun18Moderate
Jul13Moderate
Aug12Moderate
Sep12Moderate
Oct14Moderate
Nov14Moderate
Dec12Good
Location & terrain

Where is Hadano?

Hadano sits at 35.4°N, 139.2°E, 103 m above sea level, in Japan. The nearest listed city is Kamiōi, 8.0 km away.

Topography around Hadano

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

Within 3 km, the terrain around Hadano has significant variations in elevation — a maximum elevation change of 285 m around an average of 137 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,659 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,737 m.

The land around Hadano is covered by artificial surfaces (47%) and trees (44%) within 3 km, trees (54%) and artificial surfaces (24%) within 16 km, and trees (46%) and water (30%) within 80 km.

3 km
285 m
16 km
1,659 m
80 km
3,737 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Kamiōi 8.0 km · Ninomiya 8.0 km · Isehara 8.0 km · Kanaishima 10 km · Ōiso 10 km · Hiratsuka 11 km · Minamiashigara 12 km · Odawara 14 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 Hadano (35.3711°, 139.2236°, elevation 103 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).