Shiraoi weather in June

In June, Shiraoi sees average daytime highs of 16°C and overnight lows near 12°C, with 98 mm of rain across 10.6 wet days and about 15.1 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 14°C in the first days to 17°C by the end. The sky is clear or mostly clear about 18% of the time in June, and the air most often feels dry.

Daylight stretches from about 14 h 54 min at the start of June to 15 h 06 min by month's end. Set against the rest of the year, June is Shiraoi's 10th-clearest and 12th-windiest month. For the whole year in context, see Shiraoi's year-round climate.

Daytime high
16°
4th warmest
Overnight low
12°
9th coldest
Rainfall
98 mm
10.6 wet days
Daylight
15 h 06 min
4:02 AM – 7:08 PM
Cloud cover
72%
10th clearest
Wind
9 km/h
12th windiest
Solar energy
5.35 kWh/m²
Travel score
4.7
out of 10

Shiraoi is town in Shiraoi district, Hokkaidō, Japan.

Density
42/km²
people per km²
Founded
1954

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 14°C in the first days to 17°C by the end.

A typical June day in Shiraoi reaches about 16°C in the afternoon and slips back to 12°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 19°C. Set against its neighbours, June runs about 4°C warmer than May and about 4°C cooler than July.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
11410
21410
31410
41410
51510
61510
71511
81511
91511
101511
111511
121511
131511
141612
151612
161612
171612
181612
191612
201612
211713
221713
231713
241713
251713
261713
271713
281714
291814
301814

How June really feels in Shiraoi

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.

Shiraoi weather by month

How June compares with the rest of the year at a glance. June is the 4th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-2° / -7°477.18.29.20.0
Feb-1° / -7°456.97.710.30.0
Mar / -4°649.88.711.60.0
Apr / 8210.83.113.10.9
May12° / 11312.20.114.43.0
Jun16° / 12°9810.6015.14.7
Jul20° / 16°14313.3014.85.5
Aug22° / 18°19413.9013.75.8
Sep20° / 15°17713.5012.35.6
Oct14° / 11411.10.110.84.0
Nov / 8410.42.89.60.9
Dec / -5°648.88.68.90.0

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 14% of June, with mostly cloudy or overcast conditions the remaining 68%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13961
23862
33862
43862
53763
63664
73664
83367
93367
103367
113268
123268
133169
143070
153169
163070
173070
183070
193070
203070
213070
222971
232971
242971
253070
262971
272872
282872
292872
302971

Chance of precipitation in June

Any precipitation

Shiraoi gets around 98 mm of rain over 10.6 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 36% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
136
236
336
436
536
636
736
836
936
1036
1136
1236
1336
1437
1537
1637
1737
1836
1936
2036
2135
2235
2335
2435
2535
2635
2735
2835
2935
3036

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the dry band about 70% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
198200
298200
397300
496400
595500
693700
792800
8891010
9871210
10851410
11831610
12811810
13792010
14762310
15732520
16702820
17683020
18643330
19623530
20593740
21563950
22544060
23514270
24484380
254545100
264346110
274047130
283747151
293547171
303347191

Wind in June

Winds average 9 km/h in June, the calmest month.

Across June, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in June

DaylightNight

Daylight runs from about 14 h 54 min at the start of June to 15 h 06 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 4:06 AM to 4:05 AM, and sunset from 6:59 PM to 7:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.94:066:59
214.94:056:59
314.94:057:00
414.94:047:01
515.04:047:02
615.04:047:02
715.04:037:03
815.04:037:04
915.04:037:04
1015.04:027:05
1115.14:027:05
1215.14:027:06
1315.14:027:07
1415.14:027:07
1515.14:027:08
1615.14:027:08
1715.14:027:08
1815.14:027:09
1915.14:027:09
2015.14:027:09
2115.14:027:10
2215.14:027:10
2315.14:037:10
2415.14:037:10
2515.14:037:10
2615.14:037:11
2715.14:047:11
2815.14:047:11
2915.14:047:11
3015.14:057:11

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 5.35 kWh/m².

For context, solar energy here swings from a low near 1.74 kWh/m² to a high of 5.48 kWh/m² in May across the year — June's 5.35 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.4Bright
95.4Bright
105.4Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.1Bright
305.1Bright
Planning a trip in June

Hazard calendar for Shiraoi

In seasonPeak

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

Shiraoi sits in the Pacific typhoon belt; the season peaks July–October.

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

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

Is June a good time to visit Shiraoi?

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

4.7
Sightseeing
4th-best month of the year
0.6
Beach & pool
4th-best month of the year

June is a reasonable time to visit Shiraoi for sightseeing.

What to pack for Shiraoi in June

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

In June, Shiraoi sees daytime highs around 16°C and nights near 12°C. Worth packing: a warm layer, rain gear and sun protection. About 11 days see rain.

a warm layerrain gearsun protection

Sea temperature near Shiraoi in June

The nearest coast averages about 13°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 20 km away) is warmest in August at about 20°C and coldest in March near 4°C.

It's comfortable for a long swim from Aug 17 to Aug 28 — about 0.4 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan6Bracing
Feb4Bracing
Mar4Bracing
Apr5Bracing
May8Bracing
Jun13Bracing
Jul17Cool
Aug20Refreshing
Sep20Cool
Oct16Cool
Nov13Bracing
Dec10Bracing

UV index in Shiraoi in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Shiraoi peaks around August 18 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighHighVery highHighModerateLowAug 18UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar3Moderate
Apr6High
May8Very high
Jun6High
Jul5Moderate
Aug9Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Shiraoi 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 Shiraoi is worst in April — around 20 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1219 µg/m³Dec 158 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb14Moderate
Mar19Moderate
Apr20Moderate
May18Moderate
Jun12Moderate
Jul11Good
Aug10Good
Sep9Good
Oct11Good
Nov9Good
Dec8Good
Location & terrain

Where is Shiraoi?

Shiraoi sits at 42.5°N, 141.3°E, 5 m above sea level, in Japan. The nearest listed city is Noboribetsu, 18 km away.

Topography around Shiraoi

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

Within 3 km, the terrain around Shiraoi has only modest variations in elevation — a maximum elevation change of 114 m around an average of 14 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,028 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,858 m.

The land around Shiraoi is covered by water (38%) and trees (35%) within 3 km, trees (47%) and water (46%) within 16 km, and trees (44%) and water (41%) within 80 km.

3 km
114 m
16 km
1,028 m
80 km
1,858 m
treesgrasslandcroplandartificial surfacesbare terrainwater
June weather nearby: Noboribetsu 18 km · Tomakomai 23 km · Chitose 39 km · Muroran 39 km · Date 41 km · Eniwa 42 km · Kitahiroshima 51 km · Sapporo 57 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 Shiraoi (42.55°, 141.35°, elevation 5 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).