Akaiwa weather in June

In June, Akaiwa sees average daytime highs of 27°C and overnight lows near 20°C, with 172 mm of rain across 12.2 wet days and about 14.3 hours of daylight. It is the 4th-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 26°C in the first days to 28°C by the end. The sky is clear or mostly clear about 14% of the time in June, and the air most often feels muggy.

Daylight stretches from about 14 h 12 min at the start of June to 14 h 18 min by month's end. Set against the rest of the year, June is Akaiwa's 12th-clearest and 11th-windiest month. For the whole year in context, see Akaiwa's year-round climate.

Daytime high
27°
4th warmest
Overnight low
20°
9th coldest
Rainfall
172 mm
12.2 wet days
Daylight
14 h 18 min
4:54 AM – 7:14 PM
Cloud cover
77%
12th clearest
Wind
8 km/h
11th windiest
Solar energy
5.22 kWh/m²
Travel score
5.8
out of 10

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 26°C in the first days to 28°C by the end.

A typical June day in Akaiwa reaches about 27°C in the afternoon and slips back to 20°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 30°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)
12617
22617
32618
42618
52618
62618
72618
82618
92619
102719
112719
122719
132719
142719
152720
162720
172720
182720
192720
202720
212721
222821
232821
242821
252821
262821
272822
282822
292822
302922

How June really feels in Akaiwa

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.

Akaiwa 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
Jan10° / 405.50.39.92.4
Feb11° / 486.40.610.72.8
Mar14° / 929.30.111.74.3
Apr20° / 10°1089.7012.86.2
May24° / 15°1259.9013.86.8
Jun27° / 20°17212.2014.35.8
Jul31° / 24°18713.6014.14.0
Aug33° / 25°10810.3013.33.6
Sep29° / 21°16810.8012.25.5
Oct23° / 14°1147.7011.17.2
Nov18° / 576.1010.26.2
Dec12° / 465.30.19.73.7

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% 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 75%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13565
23466
33367
43367
53268
63268
73169
83070
92971
102971
112773
122773
132674
142674
152575
162377
172377
182278
192080
202080
212080
221981
231981
241981
251882
261882
271882
281882
291981
302080

Chance of precipitation in June

Any precipitation

Akaiwa gets around 172 mm of rain over 12.2 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 41% and peaks near 52% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
129
229
330
430
531
631
732
832
933
1034
1135
1236
1338
1439
1540
1642
1743
1844
1945
2046
2147
2248
2350
2451
2551
2652
2752
2852
2952
3052

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the muggy band about 30% of days. Sticky, muggy-or-worse air turns up on roughly 44% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1263333800
2253234910
32332351010
42131351210
51930361320
61730361420
71629371620
81428371830
91327372040
101126372240
111024372450
12923362660
13722362870
14620353170
15619343380
165173335100
174163237110
184153139120
193132940140
203122841160
212112642180
22292543210
23282344230
24172144260
25161944291
26151844311
27151644341
28041444371
29041243392
30031142422

Wind in June

Winds average 8 km/h in June.

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

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

Sunrise & sunset in June

DaylightNight

Daylight runs from about 14 h 12 min at the start of June to 14 h 18 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 4:57 AM to 4:58 AM, and sunset from 7:06 PM to 7:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.24:577:06
214.24:567:07
314.24:567:07
414.24:567:08
514.24:567:09
614.24:557:09
714.24:557:10
814.34:557:10
914.34:557:11
1014.34:557:11
1114.34:557:12
1214.34:547:12
1314.34:547:13
1414.34:547:13
1514.34:547:13
1614.34:547:14
1714.34:557:14
1814.34:557:15
1914.34:557:15
2014.34:557:15
2114.34:557:15
2214.34:557:16
2314.34:557:16
2414.34:567:16
2514.34:567:16
2614.34:567:16
2714.34:577:16
2814.34:577:16
2914.34:577:17
3014.34:587:17

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 5.22 kWh/m².

For context, solar energy here swings from a low near 2.41 kWh/m² to a high of 5.74 kWh/m² in May across the year — June's 5.22 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.6Bright
35.6Bright
45.6Bright
55.6Bright
65.5Bright
75.5Bright
85.5Bright
95.4Bright
105.4Bright
115.4Bright
125.3Bright
135.3Bright
145.3Bright
155.2Bright
165.2Bright
175.2Bright
185.1Bright
195.1Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
244.9Bright
254.9Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
Planning a trip in June

Hazard calendar for Akaiwa

In seasonPeak

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

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

Akaiwa's rainy season runs March–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 Akaiwa?

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

5.8
Sightseeing
5th-best month of the year
6.0
Beach & pool
4th-best month of the year

June is a reasonable time to visit Akaiwa for sightseeing.

What to pack for Akaiwa in June

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

In June, Akaiwa sees daytime highs around 27°C and nights near 20°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

Sea temperature near Akaiwa in June

The nearest coast averages about 21°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 38 km away) is warmest in August at about 27°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 7 to Nov 12 — about 5.2 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar13Bracing
Apr15Bracing
May17Cool
Jun21Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct24Refreshing
Nov20Cool
Dec16Cool

UV index in Akaiwa 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 Akaiwa peaks around July 13 at about 10 (extreme) — 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 highVery highModerateJul 13UV 10Dec 22UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7Very high
May8Very high
Jun10Very high
Jul10Extreme
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Akaiwa 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 Akaiwa is worst in April — around 23 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (October, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1422 µg/m³Oct 1613 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb17Moderate
Mar21Moderate
Apr23Moderate
May20Moderate
Jun18Moderate
Jul15Moderate
Aug15Moderate
Sep13Moderate
Oct12Moderate
Nov13Moderate
Dec13Moderate
Location & terrain

Where is Akaiwa?

Akaiwa sits at 34.8°N, 134.0°E, 47 m above sea level, in Japan. The nearest listed city is Okayama, 20 km away.

Topography around Akaiwa

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

Within 3 km, the terrain around Akaiwa has significant variations in elevation — a maximum elevation change of 251 m around an average of 102 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 518 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,692 m.

The land around Akaiwa is covered by trees (74%) within 3 km, trees (76%) within 16 km, and trees (65%) and water (23%) within 80 km.

3 km
251 m
16 km
518 m
80 km
1,692 m
treesgrasslandcroplandartificial surfaceswater
June weather nearby: Okayama 20 km · Bizen 20 km · Setouchi 20 km · Hayashino 24 km · Tsuyama 27 km · Sōja 29 km · Kamigōri 32 km · Tamano 33 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 Akaiwa (34.8099°, 134.0215°, elevation 47 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).