Oshima weather in June

In June, Oshima sees average daytime highs of 22°C and overnight lows near 19°C, with 147 mm of rain across 11 wet days and about 14.5 hours of daylight. It is the 4th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 21°C in the first days to 24°C by the end. The sky is clear or mostly clear about 24% of the time in June, and the air most often feels humid.

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 Oshima's 8th-clearest and 12th-windiest month. For the whole year in context, see Oshima's year-round climate.

Daytime high
22°
4th warmest
Overnight low
19°
9th coldest
Rainfall
147 mm
11 wet days
Daylight
14 h 30 min
4:37 AM – 7:09 PM
Cloud cover
67%
8th clearest
Wind
13 km/h
12th windiest
Solar energy
5.71 kWh/m²
Travel score
6.3
out of 10

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 21°C in the first days to 24°C by the end.

A typical June day in Oshima reaches about 22°C in the afternoon and slips back to 19°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 24°C. Set against its neighbours, June runs about 4°C warmer than May and about 4°C cooler than July.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12017
22117
32117
42117
52117
62117
72118
82118
92118
102218
112218
122218
132218
142219
152219
162219
172219
182219
192319
202319
212320
222320
232320
242320
252320
262320
272420
282421
292421
302421

How June really feels in Oshima

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.

Oshima weather by month

How June compares with the rest of the year at a glance. June is the 4th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 19624.18.89.80.5
Feb / 13218.97.310.60.6
Mar / 13416.12.211.71.7
Apr14° / 11712.10.112.93.8
May18° / 14°11811.50145.8
Jun22° / 19°14711014.56.3
Jul26° / 23°22314.1014.35.9
Aug28° / 25°14811.3013.45.9
Sep25° / 22°18813.2012.36.2
Oct20° / 16°15013.10115.8
Nov15° / 11°17417.50103.6
Dec / 22323.44.49.51.4

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 13% of June, with mostly cloudy or overcast conditions the remaining 63%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14654
24555
34555
44456
54456
64357
74357
84258
94258
104159
114159
124060
133961
143961
153862
163664
173664
183664
193565
203565
213466
223367
233169
243169
253070
263070
272971
282971
293070
302971

Chance of precipitation in June

Any precipitation

Oshima gets around 147 mm of rain over 11 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 38% and peaks near 50% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
127
227
327
427
527
628
728
829
930
1031
1132
1233
1334
1436
1537
1638
1739
1840
1941
2043
2144
2245
2346
2447
2548
2648
2749
2849
2950
3050

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the humid band about 41% of days. Sticky, muggy-or-worse air turns up on roughly 34% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
119453420
217433720
315424030
413404340
512384560
610364770
79334890
883150110
972951130
1072751150
1162452180
1252252210
1352052230
1441951260
1541749291
1641648321
1731447351
1831345371
1931243402
2021142433
2121040453
222938475
232836496
241734517
251632529
2615305311
2714285413
2814265415
2913245418
3013225420

Wind in June

Winds average 13 km/h in June, the calmest month.

Across June, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze

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 4:40 AM to 4:41 AM, and sunset from 7:01 PM to 7:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.34:407:01
214.44:407:01
314.44:397:02
414.44:397:03
514.44:397:03
614.44:397:04
714.44:387:05
814.54:387:05
914.54:387:06
1014.54:387:06
1114.54:387:07
1214.54:387:07
1314.54:377:08
1414.54:377:08
1514.54:377:08
1614.54:377:09
1714.54:387:09
1814.54:387:10
1914.54:387:10
2014.54:387:10
2114.54:387:10
2214.54:387:11
2314.54:387:11
2414.54:397:11
2514.54:397:11
2614.54:397:11
2714.54:397:11
2814.54:407:11
2914.54:407:12
3014.54:417:12

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 5.71 kWh/m².

For context, solar energy here swings from a low near 1.89 kWh/m² to a high of 5.85 kWh/m² in May across the year — June's 5.71 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.0Intense
66.0Intense
76.0Bright
86.0Bright
95.9Bright
105.9Bright
115.9Bright
125.8Bright
135.8Bright
145.8Bright
155.7Bright
165.7Bright
175.6Bright
185.6Bright
195.5Bright
205.5Bright
215.5Bright
225.4Bright
235.4Bright
245.3Bright
255.3Bright
265.3Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
Planning a trip in June

Hazard calendar for Oshima

In seasonPeak

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

Oshima 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 June a good time to visit Oshima?

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

6.3
Sightseeing
1st-best month of the year
4.4
Beach & pool
4th-best month of the year

June is a reasonable time to visit Oshima for sightseeing.

What to pack for Oshima in June

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

In June, Oshima sees daytime highs around 22°C and nights near 19°C. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near Oshima in June

The nearest coast averages about 20°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 18 km away) is warmest in August at about 27°C and coldest in March near 11°C.

It's comfortable for a long swim from Jun 17 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
Mar11Bracing
Apr12Bracing
May16Cool
Jun20Cool
Jul24Refreshing
Aug27Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Oshima 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 Oshima peaks around August 14 at about 10 (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 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateAug 14UV 10Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug10Very high
Sep9Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Oshima 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 Oshima is worst in April — around 23 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (October, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1722 µg/m³Oct 1110 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb15Moderate
Mar21Moderate
Apr23Moderate
May21Moderate
Jun18Moderate
Jul15Moderate
Aug12Good
Sep10Good
Oct10Good
Nov11Good
Dec10Good
Location & terrain

Where is Oshima?

Oshima sits at 37.0°N, 136.8°E, 11 m above sea level, in Japan. The nearest listed city is Hakui, 12 km away.

Topography around Oshima

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

Within 3 km, the terrain around Oshima has only modest variations in elevation — a maximum elevation change of 84 m around an average of 11 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 478 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,375 m.

The land around Oshima is covered by water (40%) and trees (30%) within 3 km, water (44%) and trees (40%) within 16 km, and water (55%) and trees (34%) within 80 km.

3 km
84 m
16 km
478 m
80 km
2,375 m
treesgrasslandcroplandartificial surfacesbare terrainwater
June weather nearby: Hakui 12 km · Hitoto 12 km · Nanao 19 km · Himimachi 24 km · Himi 24 km · Kahoku 26 km · Anamizu 30 km · Takaoka 34 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 Oshima (36.9871°, 136.7725°, elevation 11 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).