Shiojiri weather in June

In June, Shiojiri sees average daytime highs of 22°C and overnight lows near 14°C, with 178 mm of rain across 15.5 wet days and about 14.4 hours of daylight. It is the 4th-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 21°C in the first days to 23°C by the end. The sky is clear or mostly clear about 10% of the time in June, and the air most often feels dry.

Daylight stretches from about 14 h 18 min at the start of June to 14 h 24 min by month's end. Set against the rest of the year, June is Shiojiri's 12th-clearest and 10th-windiest month. For the whole year in context, see Shiojiri's year-round climate.

Daytime high
22°
4th warmest
Overnight low
14°
9th coldest
Rainfall
178 mm
15.5 wet days
Daylight
14 h 24 min
4:35 AM – 7:02 PM
Cloud cover
79%
12th clearest
Wind
5 km/h
10th windiest
Solar energy
5.08 kWh/m²
Travel score
5.4
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 23°C by the end.

A typical June day in Shiojiri reaches about 22°C in the afternoon and slips back to 14°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 26°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)
12111
22111
32112
42112
52112
62112
72112
82112
92113
102213
112213
122213
132213
142213
152214
162214
172214
182214
192214
202214
212315
222315
232315
242315
252315
262315
272316
282316
292416
302416

How June really feels in Shiojiri

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.

Shiojiri weather by month

How June compares with the rest of the year at a glance. June is the 4th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -8°8511.512.49.80.0
Feb / -7°8610.19.510.60.0
Mar / -3°14213.38.911.70.9
Apr14° / 12712.41.912.93.7
May19° / 13312.10.113.95.7
Jun22° / 14°17815.5014.45.4
Jul26° / 18°19817014.25.5
Aug27° / 18°12313.4013.45.9
Sep23° / 15°15912.8012.26.1
Oct17° / 17012.10.111.15.2
Nov11° / 9710.41.710.12.8
Dec / -4°84129.49.60.2

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% of the time in June, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 11% of June, with mostly cloudy or overcast conditions the remaining 80%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13070
22971
32872
42773
52773
62674
72575
82377
92377
102377
112278
122080
132080
142080
151882
161882
171882
181783
191783
201684
211684
221783
231783
241684
251684
261684
271684
281684
291783
301882

Chance of precipitation in June

Any precipitation

Shiojiri gets around 178 mm of rain over 15.5 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 53% and peaks near 61% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
139
240
341
442
543
643
744
845
947
1048
1149
1250
1352
1453
1554
1655
1756
1857
1958
2058
2159
2259
2359
2460
2560
2661
2761
2861
2961
3061

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 55% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
190910
2891010
3881110
4861310
5841420
6821620
7811720
8781930
9762130
10732340
11702550
12672850
13643060
14613270
15583480
165436100
175138110
184839121
194540141
204241161
213942181
223642201
233343231
243143251
252843282
262542312
272342332
282042362
291841392
301640413

Wind in June

Winds average 5 km/h in June.

Across June, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
296calm
306calm

Sunrise & sunset in June

DaylightNight

Daylight runs from about 14 h 18 min at the start of June to 14 h 24 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 4:38 AM to 4:38 AM, and sunset from 6:54 PM to 7:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.34:386:54
214.34:376:54
314.34:376:55
414.34:376:56
514.34:366:56
614.34:366:57
714.44:366:57
814.44:366:58
914.44:366:58
1014.44:356:59
1114.44:356:59
1214.44:357:00
1314.44:357:00
1414.44:357:01
1514.44:357:01
1614.44:357:02
1714.44:357:02
1814.44:357:02
1914.54:357:03
2014.54:367:03
2114.54:367:03
2214.54:367:03
2314.54:367:04
2414.54:367:04
2514.54:377:04
2614.54:377:04
2714.44:377:04
2814.44:387:04
2914.44:387:04
3014.44:387:04

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 5.08 kWh/m².

For context, solar energy here swings from a low near 2.54 kWh/m² to a high of 5.73 kWh/m² in May across the year — June's 5.08 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.6Bright
35.6Bright
45.6Bright
55.5Bright
65.5Bright
75.4Bright
85.4Bright
95.3Bright
105.3Bright
115.2Bright
125.2Bright
135.1Bright
145.1Bright
155.0Bright
165.0Bright
175.0Bright
184.9Bright
194.9Bright
204.8Bright
214.8Bright
224.8Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.7Bright
304.7Bright
Planning a trip in June

Is June a good time to visit Shiojiri?

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

5.4
Sightseeing
5th-best month of the year
3.8
Beach & pool
4th-best month of the year

June is a reasonable time to visit Shiojiri for sightseeing.

What to pack for Shiojiri in June

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

In June, Shiojiri sees daytime highs around 22°C and nights near 14°C. Pack rain gear. Worth having: light clothes and sun protection. About 16 days see rain.

rain gearlight clothessun protection

UV index in Shiojiri in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June 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 Shiojiri peaks around July 14 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 highModerateJul 14UV 11Dec 21UV 2
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr7Very high
May9Very high
Jun10Extreme
Jul11Extreme
Aug10Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Shiojiri 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 Shiojiri is worst in April — around 18 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1918 µg/m³Dec 178 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar17Moderate
Apr18Moderate
May17Moderate
Jun16Moderate
Jul13Moderate
Aug12Good
Sep10Good
Oct10Good
Nov9Good
Dec8Good
Location & terrain

Where is Shiojiri?

Shiojiri sits at 36.1°N, 138.0°E, 729 m above sea level, in Japan. The nearest listed city is Okaya, 9.0 km away.

Topography around Shiojiri

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

Within 3 km, the terrain around Shiojiri has significant variations in elevation — a maximum elevation change of 527 m around an average of 821 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,395 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,051 m.

The land around Shiojiri is covered by trees (52%) and artificial surfaces (23%) within 3 km, trees (68%) within 16 km, and trees (87%) within 80 km.

3 km
527 m
16 km
1,395 m
80 km
3,051 m
treesgrasslandcroplandartificial surfaceswater
June weather nearby: Okaya 9.0 km · Shimosuwa 11 km · Tatsuno 13 km · Matsumoto 15 km · Suwa 15 km · Chino 21 km · Azumino 22 km · Kinoshita 22 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 Shiojiri (36.1°, 137.9667°, elevation 729 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).