Komoro weather in June

In June, Komoro sees average daytime highs of 22°C and overnight lows near 14°C, with 197 mm of rain across 19.8 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 30 min by month's end. Set against the rest of the year, June is Komoro's 12th-clearest and 10th-windiest month. For the whole year in context, see Komoro's year-round climate.

Daytime high
22°
4th warmest
Overnight low
14°
9th coldest
Rainfall
197 mm
19.8 wet days
Daylight
14 h 30 min
4:33 AM – 7:00 PM
Cloud cover
78%
12th clearest
Wind
5 km/h
10th windiest
Solar energy
5.01 kWh/m²
Travel score
4.8
out of 10

Komoro is city in Nagano Prefecture, Japan.

Density
470/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 21°C in the first days to 23°C by the end.

A typical June day in Komoro 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)
12112
22112
32112
42112
52112
62113
72113
82113
92113
102113
112113
122214
132214
142214
152214
162214
172214
182214
192215
202215
212215
222315
232315
242315
252316
262316
272316
282316
292416
302416

How June really feels in Komoro

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.

Komoro 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 / -5°557.57.89.80.0
Feb / -5°5787.110.60.0
Mar / -2°9911.77.311.71.3
Apr14° / 10212.32.312.93.9
May19° / 131150.113.95.4
Jun22° / 14°19719.8014.44.8
Jul26° / 18°22021.6014.24.8
Aug27° / 19°17421.6013.44.8
Sep23° / 15°18717.6012.25.3
Oct17° / 16112.9011.15.0
Nov11° / 647.80.610.13.0
Dec / -2°487.95.39.60.4

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 78%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13367
23070
32971
42971
52872
62773
72773
82674
92575
102476
112377
122278
132179
142179
152080
162080
172080
181981
191882
201882
211882
221882
231783
241684
251684
261684
271783
281783
291783
301783

Chance of precipitation in June

Any precipitation

Komoro gets around 197 mm of rain over 19.8 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 67% and peaks near 73% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
155
256
356
457
558
659
760
861
962
1063
1164
1266
1367
1468
1569
1670
1771
1871
1972
2072
2172
2272
2373
2473
2573
2673
2773
2873
2973
3073

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 51% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1881200
2871300
3851410
4831610
5821710
6791920
7772120
8742330
9712540
10692740
11662950
12623260
13593470
14563680
15523891
164940101
174642111
184343131
194044141
203844162
213545192
223245212
232945242
242645263
252344293
262144323
271843364
281641394
291440424
301238455

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 5 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
295calm
305calm

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 4:35 AM to 4:36 AM, and sunset from 6:52 PM to 7:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.34:356:52
214.34:356:53
314.34:356:54
414.34:346:54
514.34:346:55
614.44:346:55
714.44:336:56
814.44:336:57
914.44:336:57
1014.44:336:58
1114.44:336:58
1214.44:336:59
1314.44:336:59
1414.44:337:00
1514.54:337:00
1614.54:337:00
1714.54:337:01
1814.54:337:01
1914.54:337:01
2014.54:337:02
2114.54:337:02
2214.54:337:02
2314.54:347:02
2414.54:347:02
2514.54:347:03
2614.54:347:03
2714.54:357:03
2814.54:357:03
2914.54:357:03
3014.54:367:03

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 5.01 kWh/m².

For context, solar energy here swings from a low near 2.52 kWh/m² to a high of 5.67 kWh/m² in May across the year — June's 5.01 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.5Bright
35.5Bright
45.5Bright
55.4Bright
65.4Bright
75.3Bright
85.3Bright
95.2Bright
105.2Bright
115.1Bright
125.1Bright
135.0Bright
145.0Bright
155.0Bright
164.9Bright
174.9Bright
184.8Bright
194.8Bright
204.8Bright
214.7Bright
224.7Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.6Bright
284.6Bright
294.6Bright
304.6Bright
Planning a trip in June

Hazard calendar for Komoro

In seasonPeak

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

Komoro's rainy season runs April–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 Komoro?

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

4.8
Sightseeing
4th-best month of the year
3.4
Beach & pool
4th-best month of the year

June is a reasonable time to visit Komoro for sightseeing.

What to pack for Komoro in June

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

In June, Komoro sees daytime highs around 22°C and nights near 14°C. Pack rain gear. Worth having: light clothes and sun protection. About 20 days see rain.

rain gearlight clothessun protection

UV index in Komoro 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 Komoro peaks around July 18 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 highModerateJul 18UV 10Dec 22UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7Very high
May9Very high
Jun10Very high
Jul10Very high
Aug10Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Komoro 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 Komoro 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 1821 µg/m³Dec 1810 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar19Moderate
Apr21Moderate
May20Moderate
Jun18Moderate
Jul15Moderate
Aug14Moderate
Sep13Moderate
Oct12Moderate
Nov11Good
Dec10Good
Location & terrain

Where is Komoro?

Komoro sits at 36.3°N, 138.4°E, 686 m above sea level, in Japan. The nearest listed city is Miyota, 7.0 km away.

Topography around Komoro

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

Within 3 km, the terrain around Komoro has significant variations in elevation — a maximum elevation change of 393 m around an average of 720 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,103 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,141 m.

The land around Komoro is covered by artificial surfaces (33%), trees (31%) and cropland (23%) within 3 km, trees (63%) within 16 km, and trees (82%) within 80 km.

3 km
393 m
16 km
2,103 m
80 km
3,141 m
treesgrasslandcroplandartificial surfacesbare terrainwater
June weather nearby: Miyota 7.0 km · Tōmi 8.0 km · Saku 12 km · Kamimaruko 14 km · Ueda 17 km · Karuizawa 18 km · Sakaki 28 km · Suzaka 38 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 Komoro (36.3167°, 138.4333°, elevation 686 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).