Kasama weather in June

In June, Kasama sees average daytime highs of 25°C and overnight lows near 18°C, with 152 mm of rain across 15.3 wet days and about 14.4 hours of daylight. It is the 4th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 24°C in the first days to 26°C by the end. The sky is clear or mostly clear about 9% 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 Kasama's 12th-clearest and 10th-windiest month. For the whole year in context, see Kasama's year-round climate.

Daytime high
25°
4th warmest
Overnight low
18°
9th coldest
Rainfall
152 mm
15.3 wet days
Daylight
14 h 30 min
4:25 AM – 6:53 PM
Cloud cover
80%
12th clearest
Wind
7 km/h
10th windiest
Solar energy
4.64 kWh/m²
Travel score
5.6
out of 10

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 24°C in the first days to 26°C by the end.

A typical June day in Kasama reaches about 25°C in the afternoon and slips back to 18°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 29°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°35°151015202530
Avg high (°C)Avg low (°C)
12416
22416
32416
42416
52416
62416
72416
82417
92417
102417
112417
122417
132417
142417
152418
162518
172518
182518
192518
202518
212519
222519
232519
242519
252619
262619
272619
282620
292620
302620

How June really feels in Kasama

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.

Kasama weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 566.71.69.81.6
Feb / 587.32.110.61.9
Mar12° / 10712.11.411.73.2
Apr17° / 11712.10.212.95.2
May22° / 13°14212.6013.96.1
Jun25° / 18°15215.3014.45.6
Jul28° / 22°18417.3014.24.7
Aug30° / 23°13715013.44.5
Sep26° / 19°17514.8012.25.7
Oct21° / 14°17912.4011.16.0
Nov15° / 888.5010.15.0
Dec10° / 577.30.39.62.7

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% 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 79%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13070
23070
32971
42971
52773
62773
72674
82575
92377
102377
112377
122080
132080
141882
151882
161882
171882
181783
191684
201684
211684
221684
231684
241684
251684
261684
271684
281684
291783
301882

Chance of precipitation in June

Any precipitation

Kasama gets around 152 mm of rain over 15.3 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 52% and peaks near 60% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
141
241
342
443
543
644
745
846
947
1048
1150
1251
1352
1453
1554
1655
1755
1856
1956
2056
2157
2257
2357
2458
2558
2659
2759
2860
2960
3060

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 37% of days. Sticky, muggy-or-worse air turns up on roughly 31% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1283929400
2263930500
3243931600
4223933700
5203834700
6183835910
71637371010
81436381110
91335391310
101133401510
111032411610
12830421810
13728432020
14627432220
15525432420
16523432630
17421432830
18420433040
19318423250
20317413360
21315403580
22214383690
232133737110
242123538120
252113439140
261103240160
27193041180
28182941200
29182742220
30172542241

Wind in June

Winds average 7 km/h in June.

Across June, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

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 4:28 AM to 4:28 AM, and sunset from 6:45 PM to 6:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.34:286:45
214.34:276:46
314.34:276:47
414.34:276:47
514.44:266:48
614.44:266:48
714.44:266:49
814.44:266:49
914.44:266:50
1014.44:256:51
1114.44:256:51
1214.44:256:51
1314.44:256:52
1414.54:256:52
1514.54:256:53
1614.54:256:53
1714.54:256:54
1814.54:256:54
1914.54:256:54
2014.54:266:54
2114.54:266:55
2214.54:266:55
2314.54:266:55
2414.54:266:55
2514.54:276:56
2614.54:276:56
2714.54:276:56
2814.54:286:56
2914.54:286:56
3014.54:286:56

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 4.64 kWh/m².

For context, solar energy here swings from a low near 2.37 kWh/m² to a high of 5.23 kWh/m² in May across the year — June's 4.64 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.1Bright
55.0Bright
65.0Bright
74.9Bright
84.9Bright
94.8Bright
104.8Bright
114.7Bright
124.7Bright
134.6Bright
144.6Bright
154.5Bright
164.5Bright
174.5Bright
184.4Bright
194.4Bright
204.4Bright
214.4Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.3Bright
304.3Bright
Planning a trip in June

Hazard calendar for Kasama

In seasonPeak

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

Kasama 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 Kasama?

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

5.6
Sightseeing
4th-best month of the year
5.0
Beach & pool
4th-best month of the year

June is a reasonable time to visit Kasama for sightseeing.

What to pack for Kasama in June

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

In June, Kasama sees daytime highs around 25°C and nights near 18°C. Pack rain gear. Worth having: light clothes and sun protection. About 15 days see rain.

rain gearlight clothessun protection

Sea temperature near Kasama 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 32 km away) is warmest in August at about 24°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 24 to Oct 28 — about 4.2 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb13Bracing
Mar13Bracing
Apr15Bracing
May17Cool
Jun19Cool
Jul22Refreshing
Aug24Warm
Sep23Refreshing
Oct21Refreshing
Nov19Cool
Dec16Cool

UV index in Kasama 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 Kasama peaks around July 24 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 24UV 10Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul10Very high
Aug10Very high
Sep8Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Kasama 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 Kasama is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1821 µg/m³Dec 189 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar19Moderate
Apr21Moderate
May20Moderate
Jun16Moderate
Jul14Moderate
Aug13Moderate
Sep11Good
Oct11Good
Nov10Good
Dec9Good
Location & terrain

Where is Kasama?

Kasama sits at 36.4°N, 140.3°E, 177 m above sea level, in Japan. The nearest listed city is Tomobe, 5.0 km away.

Topography around Kasama

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

Within 3 km, the terrain around Kasama has only modest variations in elevation — a maximum elevation change of 167 m around an average of 71 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 698 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,298 m.

The land around Kasama is covered by trees (58%) within 3 km, trees (66%) within 16 km, and trees (43%) and cropland (21%) within 80 km.

3 km
167 m
16 km
698 m
80 km
2,298 m
treesgrasslandcroplandartificial surfaceswater
June weather nearby: Tomobe 5.0 km · Ishitsuka 15 km · Iwase 15 km · Mito 17 km · Okunoya 17 km · Omitama 18 km · Mashiko 18 km · Makabe 20 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 Kasama (36.3833°, 140.2667°, elevation 177 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).