Izumi weather in June

In June, Izumi sees average daytime highs of 25°C and overnight lows near 21°C, with 487 mm of rain across 18.4 wet days and about 14.1 hours of daylight. It is the 4th-warmest and 1st-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 12% of the time in June, and the air most often feels muggy.

Daylight stretches from about 13 h 54 min at the start of June to 14 h 06 min by month's end. Set against the rest of the year, June is Izumi's 12th-clearest and 12th-windiest month. For the whole year in context, see Izumi's year-round climate.

Daytime high
25°
4th warmest
Overnight low
21°
9th coldest
Rainfall
487 mm
18.4 wet days
Daylight
14 h 06 min
5:16 AM – 7:21 PM
Cloud cover
81%
12th clearest
Wind
10 km/h
12th windiest
Solar energy
4.2 kWh/m²
Travel score
5.2
out of 10

Izumi is city in Kagoshima Prefecture, Japan.

Density
158/km²
people per km²
Founded
2006

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 24°C in the first days to 26°C by the end.

A typical June day in Izumi reaches about 25°C in the afternoon and slips back to 21°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 27°C. Set against its neighbours, June runs about 3°C warmer than May and about 4°C cooler than July.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12419
22420
32420
42420
52420
62420
72420
82420
92421
102421
112421
122521
132521
142521
152521
162521
172522
182522
192522
202522
212522
222522
232622
242622
252623
262623
272623
282623
292623
302623

How June really feels in Izumi

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.

Izumi weather by month

How June compares with the rest of the year at a glance. June is the 4th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan11° / 8811.110.12.7
Feb12° / 10510.610.82.9
Mar14° / 10°14912.911.84.0
Apr18° / 14°17811.412.85.6
May22° / 18°19811.613.66.3
Jun25° / 21°48718.414.15.2
Jul28° / 25°34218.213.94.6
Aug30° / 26°1711613.24.4
Sep28° / 24°19313.212.25.7
Oct23° / 19°1108.511.27.2
Nov18° / 14°1179.310.46.1
Dec13° / 9710.19.93.9

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in June, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 8% 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 (%)
13268
22971
32971
42872
52773
62674
72674
82476
92377
102377
112278
122179
132080
141981
151882
161882
171882
181684
191684
201585
211585
221585
231585
241585
251486
261387
271486
281585
291684
301684

Chance of precipitation in June

Any precipitation

Izumi gets around 487 mm of rain over 18.4 wet days in June, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 61% and peaks near 75% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
141
242
343
444
546
647
748
850
951
1053
1154
1256
1358
1460
1562
1663
1765
1867
1968
2070
2171
2272
2373
2474
2575
2675
2775
2875
2975
3075

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 41% of days. Sticky, muggy-or-worse air turns up on roughly 77% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1212483440
2210463650
319453870
418434080
517414290
6063944110
7053645130
8043447150
9043148170
10032949190
11022650211
12022450231
13022150261
14011951281
15011750311
16011549332
17011348352
18011247383
19001046404
2000944425
2100842446
2200640467
2300538488
24004365010
25004345012
26003315313
27002295415
28002265418
29002245420
30001215622

Wind in June

Winds average 10 km/h in June, the calmest month.

Across June, daily wind ranges from about 10 km/h on the calmest days to 12 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
1610calm
1710calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2612calm
2712calm
2812calm
2912calm
3012calm

Sunrise & sunset in June

DaylightNight

Daylight runs from about 13 h 54 min at the start of June to 14 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 5:18 AM to 5:19 AM, and sunset from 7:14 PM to 7:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:187:14
214.05:187:15
314.05:177:15
414.05:177:16
514.05:177:17
614.05:177:17
714.05:167:18
814.05:167:18
914.05:167:19
1014.05:167:19
1114.15:167:19
1214.15:167:20
1314.15:167:20
1414.15:167:21
1514.15:167:21
1614.15:167:21
1714.15:167:22
1814.15:167:22
1914.15:167:22
2014.15:177:23
2114.15:177:23
2214.15:177:23
2314.15:177:23
2414.15:177:24
2514.15:187:24
2614.15:187:24
2714.15:187:24
2814.15:197:24
2914.15:197:24
3014.15:197:24

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 4.2 kWh/m².

For context, solar energy here swings from a low near 2.3 kWh/m² to a high of 5.15 kWh/m² in May across the year — June's 4.2 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
15.0Bright
24.9Bright
34.9Bright
44.8Bright
54.8Bright
64.7Bright
74.7Bright
84.6Bright
94.6Bright
104.5Bright
114.4Bright
124.4Bright
134.3Bright
144.3Bright
154.2Bright
164.1Bright
174.1Bright
184.0Bright
194.0Bright
204.0Moderate
213.9Moderate
223.9Moderate
233.9Moderate
243.9Moderate
253.9Moderate
263.9Moderate
273.9Moderate
283.9Moderate
293.9Moderate
303.9Moderate
Planning a trip in June

Hazard calendar for Izumi

In seasonPeak

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

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

Izumi's rainy season runs June–July, 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 Izumi?

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

5.2
Sightseeing
6th-best month of the year
4.7
Beach & pool
5th-best month of the year

June is a reasonable time to visit Izumi for sightseeing.

What to pack for Izumi in June

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

In June, Izumi sees daytime highs around 25°C and nights near 21°C. Pack rain gear. Worth having: light clothes. About 18 days see rain.

rain gearlight clothes

Sea temperature near Izumi in June

The nearest coast averages about 23°C in June — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 28°C and coldest in February near 16°C.

It's comfortable for a long swim from May 16 to Dec 4 — about 6.7 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan17Cool
Feb16Cool
Mar17Cool
Apr18Cool
May20Refreshing
Jun23Refreshing
Jul26Warm
Aug28Warm
Sep27Warm
Oct24Warm
Nov22Refreshing
Dec19Cool

UV index in Izumi 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 Izumi peaks around July 10 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 10UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar7High
Apr8Very high
May8Very high
Jun10Extreme
Jul11Extreme
Aug9Very high
Sep10Very high
Oct6High
Nov5Moderate
Dec3Moderate

Air quality in Izumi 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 Izumi is worst in March — around 24 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (July, 13 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2424 µg/m³Jul 2114 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb20Moderate
Mar24Moderate
Apr24Moderate
May22Moderate
Jun18Moderate
Jul13Moderate
Aug14Moderate
Sep14Moderate
Oct14Moderate
Nov16Moderate
Dec15Moderate
Location & terrain

Where is Izumi?

Izumi sits at 32.1°N, 130.4°E, 37 m above sea level, in Japan. The nearest listed city is Minamata, 15 km away.

Topography around Izumi

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

Within 3 km, the terrain around Izumi has significant variations in elevation — a maximum elevation change of 357 m around an average of 86 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,063 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,718 m.

The land around Izumi is covered by trees (65%) and artificial surfaces (22%) within 3 km, trees (71%) within 16 km, and trees (48%) and water (45%) within 80 km.

3 km
357 m
16 km
1,063 m
80 km
1,718 m
treesgrasslandcroplandartificial surfaceswater
June weather nearby: Minamata 15 km · Akune 17 km · Tsuruda 18 km · Isa 23 km · Ōkuchi-shinohara 24 km · Sashiki 27 km · Sendai 30 km · Ushibukamachi 35 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 Izumi (32.0833°, 130.3667°, elevation 37 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).