Kumakura weather in June

In June, Kumakura sees average daytime highs of 23°C and overnight lows near 15°C, with 134 mm of rain across 14.1 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 12% of the time in June, and the air most often feels comfortable.

Daylight stretches from about 14 h 24 min at the start of June to 14 h 30 min by month's end. Set against the rest of the year, June is Kumakura's 11th-clearest and 9th-windiest month. For the whole year in context, see Kumakura's year-round climate.

Daytime high
23°
4th warmest
Overnight low
15°
9th coldest
Rainfall
134 mm
14.1 wet days
Daylight
14 h 30 min
4:23 AM – 6:56 PM
Cloud cover
77%
11th clearest
Wind
8 km/h
9th windiest
Solar energy
4.72 kWh/m²
Travel score
5.7
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 Kumakura 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
52213
62214
72214
82214
92214
102214
112214
122215
132315
142315
152315
162315
172315
182316
192316
202316
212316
222316
232316
242417
252417
262417
272417
282417
292417
302417

How June really feels in Kumakura

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.

Kumakura 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°579.19.29.70.0
Feb / -3°498.27.410.60.0
Mar / -0°8911.65.811.71.3
Apr14° / 10011.51.412.94.0
May20° / 10°11312.10145.8
Jun23° / 15°13414.1014.55.7
Jul26° / 19°18917.3014.35.3
Aug27° / 20°13914.6013.45.4
Sep23° / 17°17214.1012.35.8
Oct18° / 10°14711.30115.3
Nov12° / 728.70.7103.1
Dec / -1°539.65.89.50.5

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 11% of June, with mostly cloudy or overcast conditions the remaining 77%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13268
23268
33070
43070
52872
62872
72773
82674
92773
102674
112476
122476
132377
142377
152179
162179
172179
182278
192278
202278
212179
222080
232080
242080
252080
262080
272080
281981
291981
302080

Chance of precipitation in June

Any precipitation

Kumakura gets around 134 mm of rain over 14.1 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 48% and peaks near 56% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
136
237
337
438
538
639
740
841
942
1043
1145
1246
1347
1449
1550
1651
1752
1853
1953
2054
2154
2254
2355
2455
2555
2656
2756
2856
2956
3056

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 36% of days. Sticky, muggy-or-worse air turns up on roughly 9% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
16430600
26232600
35934700
45635810
55337910
650391010
747401110
844411320
941431420
1038431620
1135441830
1233442030
1330442240
1427442540
1525432750
1623432950
1721423160
1819403370
1918393580
2016373790
21143639110
22133440120
23123241141
24103142161
2592943181
2682744201
2772544222
2862444242
2952244262
3052143283

Wind in June

Winds average 8 km/h in June.

Across June, daily wind ranges from about 7 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
287calm
297calm
307calm

Sunrise & sunset in June

DaylightNight

Daylight runs from about 14 h 24 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 6 minutes over June. Sunrise moves from 4:26 AM to 4:26 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)
114.44:266:48
214.44:266:48
314.44:256:49
414.44:256:50
514.44:256:50
614.44:246:51
714.54:246:51
814.54:246:52
914.54:246:53
1014.54:246:53
1114.54:246:54
1214.54:236:54
1314.54:236:54
1414.54:236:55
1514.54:236:55
1614.54:236:56
1714.54:236:56
1814.54:246:56
1914.64:246:57
2014.64:246:57
2114.64:246:57
2214.64:246:58
2314.64:246:58
2414.64:256:58
2514.64:256:58
2614.64:256:58
2714.54:256:58
2814.54:266:58
2914.54:266:58
3014.54:266:58

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 4.72 kWh/m².

For context, solar energy here swings from a low near 2.21 kWh/m² to a high of 5.3 kWh/m² in May across the year — June's 4.72 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.2Bright
55.2Bright
65.1Bright
75.1Bright
85.0Bright
95.0Bright
104.9Bright
114.8Bright
124.8Bright
134.8Bright
144.7Bright
154.7Bright
164.6Bright
174.6Bright
184.5Bright
194.5Bright
204.5Bright
214.4Bright
224.4Bright
234.4Bright
244.3Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.3Bright
304.3Bright
Planning a trip in June

Is June a good time to visit Kumakura?

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

5.7
Sightseeing
3rd-best month of the year
4.4
Beach & pool
4th-best month of the year

June is a reasonable time to visit Kumakura for sightseeing.

What to pack for Kumakura in June

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

In June, Kumakura sees daytime highs around 23°C and nights near 15°C. Pack rain gear. Worth having: light clothes and sun protection. About 14 days see rain.

rain gearlight clothessun protection

Sea temperature near Kumakura in June

The nearest coast averages about 19°C in June — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 70 km away) is warmest in August at about 24°C and coldest in March near 12°C.

It's comfortable for a long swim from Jul 1 to Oct 22 — about 3.7 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb12Bracing
Mar12Bracing
Apr14Bracing
May16Cool
Jun19Cool
Jul21Refreshing
Aug24Refreshing
Sep23Refreshing
Oct20Refreshing
Nov18Cool
Dec16Cool

UV index in Kumakura 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 Kumakura peaks around July 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 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 20UV 9Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr7High
May8Very high
Jun9Very high
Jul9Very high
Aug9Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec2Low

Air quality in Kumakura 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 Kumakura 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 1721 µg/m³Dec 1810 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar20Moderate
Apr21Moderate
May20Moderate
Jun16Moderate
Jul14Moderate
Aug12Good
Sep11Good
Oct12Good
Nov11Good
Dec10Good
Location & terrain

Where is Kumakura?

Kumakura sits at 37.2°N, 140.2°E, 397 m above sea level, in Japan. The nearest listed city is Shirakawa, 9.0 km away.

Topography around Kumakura

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

Within 3 km, the terrain around Kumakura has only modest variations in elevation — a maximum elevation change of 167 m around an average of 420 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,439 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,550 m.

The land around Kumakura is covered by trees (47%) and cropland (31%) within 3 km, trees (75%) within 16 km, and trees (79%) within 80 km.

3 km
167 m
16 km
1,439 m
80 km
2,550 m
treesgrasslandcroplandartificial surfacesbare terrainwater
June weather nearby: Shirakawa 9.0 km · Nasu 14 km · Yabuki 14 km · Nasushiobara 22 km · Kuroiso 23 km · Sukagawa 24 km · Ishikawa 25 km · Kōriyama 33 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 Kumakura (37.1525°, 140.1685°, elevation 397 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).