Kuroiso weather in June

In June, Kuroiso sees average daytime highs of 23°C and overnight lows near 15°C, with 176 mm of rain across 16.8 wet days and about 14.5 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 22°C in the first days to 24°C by the end. The sky is clear or mostly clear about 11% of the time in June, and the air most often feels comfortable.

Daylight stretches from about 14 h 18 min at the start of June to 14 h 30 min by month's end. Set against the rest of the year, June is Kuroiso's 12th-clearest and 10th-windiest month. For the whole year in context, see Kuroiso's year-round climate.

Daytime high
23°
4th warmest
Overnight low
15°
9th coldest
Rainfall
176 mm
16.8 wet days
Daylight
14 h 30 min
4:24 AM – 6:56 PM
Cloud cover
79%
12th clearest
Wind
6 km/h
10th windiest
Solar energy
4.56 kWh/m²
Travel score
5.3
out of 10

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 22°C in the first days to 24°C by the end.

A typical June day in Kuroiso reaches about 23°C in the afternoon and slips back to 15°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 27°C. Set against its neighbours, June runs about 3°C warmer than May and about 4°C cooler than July.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12213
22213
32213
42213
52214
62214
72214
82214
92214
102214
112215
122215
132315
142315
152315
162315
172316
182316
192316
202316
212316
222316
232316
242417
252417
262417
272417
282417
292417
302418

How June really feels in Kuroiso

Once humidity and wind are folded in, June 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

June sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Kuroiso weather by month

How June compares with the rest of the year at a glance. June is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°619.389.80.0
Feb / -2°568.86.210.60.2
Mar / 11113.35.111.71.8
Apr15° / 13013.11.112.94.1
May20° / 10°14913.9013.95.6
Jun23° / 15°17616.8014.55.3
Jul26° / 19°24021.1014.34.8
Aug27° / 20°19018.4013.45.0
Sep24° / 17°22716.4012.35.5
Oct18° / 10°185140115.2
Nov13° / 889.40.3103.5
Dec / -0°609.64.19.51.1

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in June, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 9% of June, with mostly cloudy or overcast conditions the remaining 79%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12971
22971
32872
42773
52674
62575
72575
82476
92476
102278
112278
122179
132080
142080
151981
161981
171981
181981
191981
201981
211981
221783
231783
241783
251783
261783
271684
281783
291783
301882

Chance of precipitation in June

Any precipitation

Kuroiso gets around 176 mm of rain over 16.8 wet days in June. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 57% and peaks near 68% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
143
243
344
445
546
647
748
849
950
1051
1153
1254
1356
1457
1558
1660
1761
1862
1962
2063
2164
2264
2365
2465
2566
2666
2767
2867
2968
3068

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

Most of June feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, June lands in the comfortable band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 13% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
15834800
25536900
351381010
448391210
545411310
642421420
739431620
836441830
933442030
1030452240
1127452440
1224452650
1322442860
1420433070
1518423280
1616413490
17153936100
18133837110
19123639121
20113440141
21103341161
2293142171
2382943191
2472743212
2562543242
2652443262
2742243283
2842043303
2931942324
3031742344

Wind in June

Winds average 6 km/h in June.

Across June, 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.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
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

Sunrise & sunset in June

DaylightNight

Daylight runs from about 14 h 18 min at the start of June to 14 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over June. Sunrise moves from 4:27 AM to 4:27 AM, and sunset from 6:48 PM to 6:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.34:276:48
214.44:276:48
314.44:266:49
414.44:266:50
514.44:266:50
614.44:256:51
714.44:256:51
814.44:256:52
914.54:256:52
1014.54:256:53
1114.54:256:53
1214.54:246:54
1314.54:246:54
1414.54:246:55
1514.54:246:55
1614.54:246:56
1714.54:246:56
1814.54:256:56
1914.54:256:57
2014.54:256:57
2114.54:256:57
2214.54:256:57
2314.54:256:58
2414.54:266:58
2514.54:266:58
2614.54:266:58
2714.54:266:58
2814.54:276:58
2914.54:276:58
3014.54:276:58

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 4.56 kWh/m².

For context, solar energy here swings from a low near 2.25 kWh/m² to a high of 5.19 kWh/m² in May across the year — June's 4.56 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.1Bright
45.1Bright
55.0Bright
65.0Bright
74.9Bright
84.8Bright
94.8Bright
104.7Bright
114.7Bright
124.6Bright
134.6Bright
144.5Bright
154.5Bright
164.4Bright
174.4Bright
184.4Bright
194.3Bright
204.3Bright
214.3Bright
224.2Bright
234.2Bright
244.2Bright
254.2Bright
264.2Bright
274.1Bright
284.1Bright
294.1Bright
304.1Bright
Planning a trip in June

Hazard calendar for Kuroiso

In seasonPeak

In June, Kuroiso sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Kuroiso's rainy season runs March–October, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is June a good time to visit Kuroiso?

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

5.3
Sightseeing
3rd-best month of the year
4.1
Beach & pool
4th-best month of the year

June is a reasonable time to visit Kuroiso for sightseeing.

What to pack for Kuroiso in June

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

In June, Kuroiso sees daytime highs around 23°C and nights near 15°C. Pack rain gear. Worth having: light clothes and sun protection. About 17 days see rain.

rain gearlight clothessun protection

UV index in Kuroiso in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June 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 Kuroiso peaks around July 17 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 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJul 17UV 9Jan 1UV 2
UV index (midday)Level
Jan2Low
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec2Low

Air quality in Kuroiso in June

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where June falls, not just the annual average.

Air quality in Kuroiso is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1821 µg/m³Dec 189 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar19Moderate
Apr21Moderate
May20Moderate
Jun16Moderate
Jul14Moderate
Aug13Moderate
Sep11Good
Oct11Good
Nov10Good
Dec9Good
Location & terrain

Where is Kuroiso?

Kuroiso sits at 37.0°N, 140.1°E, 301 m above sea level, in Japan. The nearest listed city is Nasushiobara, 2.0 km away.

Topography around Kuroiso

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

Within 3 km, the terrain around Kuroiso has only modest variations in elevation — a maximum elevation change of 113 m around an average of 299 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,299 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,551 m.

The land around Kuroiso is covered by artificial surfaces (38%), trees (30%) and cropland (30%) within 3 km, trees (61%) and cropland (26%) within 16 km, and trees (75%) within 80 km.

3 km
113 m
16 km
1,299 m
80 km
2,551 m
treesgrasslandcroplandartificial surfaceswater
June weather nearby: Nasushiobara 2.0 km · Nasu 9.0 km · Ōtawara 11 km · Yaita 21 km · Kumakura 23 km · Ogawa 25 km · Shirakawa 25 km · Sakura 28 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 Kuroiso (36.9667°, 140.05°, elevation 301 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. 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).