Namerikawa weather in June

In June, Namerikawa sees average daytime highs of 24°C and overnight lows near 18°C, with 200 mm of rain across 15.4 wet days and about 14.5 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 23°C in the first days to 25°C by the end. The sky is clear or mostly clear about 15% 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 Namerikawa's 12th-clearest and 10th-windiest month. For the whole year in context, see Namerikawa's year-round climate.

Daytime high
24°
4th warmest
Overnight low
18°
9th coldest
Rainfall
200 mm
15.4 wet days
Daylight
14 h 30 min
4:36 AM – 7:06 PM
Cloud cover
73%
12th clearest
Wind
7 km/h
10th windiest
Solar energy
5.38 kWh/m²
Travel score
5.7
out of 10

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 23°C in the first days to 25°C by the end.

A typical June day in Namerikawa reaches about 24°C in the afternoon and slips back to 18°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 27°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)
12215
22315
32316
42316
52316
62316
72316
82316
92317
102317
112317
122317
132417
142417
152417
162418
172418
182418
192418
202418
212418
222419
232519
242519
252519
262519
272519
282520
292520
302620

How June really feels in Namerikawa

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.

Namerikawa weather by month

How June compares with the rest of the year at a glance. June is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -0°21022.917.99.80.0
Feb / -0°16419.114.610.60.1
Mar / 17918.98.811.71.5
Apr15° / 15014.51.312.94.2
May21° / 13°15614.6013.95.8
Jun24° / 18°20015.4014.55.7
Jul28° / 22°27318.6014.34.8
Aug29° / 23°17815.8013.44.8
Sep25° / 19°21115.6012.25.7
Oct19° / 13°18014.60115.5
Nov14° / 16916.81.2103.3
Dec / 2142210.89.50.9

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in June, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of June, with mostly cloudy or overcast conditions the remaining 71%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13961
23862
33862
43763
53763
63565
73565
83565
93565
103367
113367
123268
133169
143070
152971
162872
172773
182773
192674
202575
212476
222476
232377
242377
252377
262377
272278
282278
292278
302377

Chance of precipitation in June

Any precipitation

Namerikawa gets around 200 mm of rain over 15.4 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 65% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
140
240
341
441
541
641
742
843
943
1044
1146
1247
1349
1450
1552
1653
1754
1855
1957
2058
2159
2260
2361
2462
2563
2664
2764
2864
2964
3065

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 38% of days. Sticky, muggy-or-worse air turns up on roughly 23% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
138441710
234451920
331462120
428472330
525472530
623472740
720462950
818453160
916443370
1014423690
11124038100
12103840110
1393642130
1473344150
1563146170
1662947190
1752648211
1842448231
1942248251
2031949281
2131748302
2221648322
2321447353
2411245383
2511144414
261942435
271840465
280738496
290635527
300533548

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 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
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 4:38 AM to 4:39 AM, and sunset from 6:58 PM to 7:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.34:386:58
214.34:386:58
314.44:386:59
414.44:377:00
514.44:377:00
614.44:377:01
714.44:377:02
814.44:367:02
914.44:367:03
1014.54:367:03
1114.54:367:04
1214.54:367:04
1314.54:367:05
1414.54:367:05
1514.54:367:05
1614.54:367:06
1714.54:367:06
1814.54:367:07
1914.54:367:07
2014.54:367:07
2114.54:367:07
2214.54:367:08
2314.54:377:08
2414.54:377:08
2514.54:377:08
2614.54:377:08
2714.54:387:08
2814.54:387:08
2914.54:387:09
3014.54:397:09

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 5.38 kWh/m².

For context, solar energy here swings from a low near 1.94 kWh/m² to a high of 5.68 kWh/m² in May across the year — June's 5.38 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.7Bright
75.7Bright
85.7Bright
95.6Bright
105.6Bright
115.5Bright
125.5Bright
135.5Bright
145.4Bright
155.4Bright
165.3Bright
175.3Bright
185.2Bright
195.2Bright
205.1Bright
215.1Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
264.9Bright
274.9Bright
284.9Bright
294.8Bright
304.8Bright
Planning a trip in June

Hazard calendar for Namerikawa

In seasonPeak

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

Namerikawa 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 Namerikawa?

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

5.7
Sightseeing
2nd-best month of the year
4.7
Beach & pool
4th-best month of the year

June is a reasonable time to visit Namerikawa for sightseeing.

What to pack for Namerikawa in June

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

In June, Namerikawa sees daytime highs around 24°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 Namerikawa in June

The nearest coast averages about 20°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 13 km away) is warmest in August at about 27°C and coldest in March near 10°C.

It's comfortable for a long swim from Jun 18 to Nov 3 — about 4.6 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb11Bracing
Mar10Bracing
Apr11Bracing
May15Cool
Jun20Cool
Jul24Refreshing
Aug27Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Namerikawa 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 Namerikawa peaks around August 13 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 highModerateAug 13UV 10Dec 20UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul10Very high
Aug10Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Namerikawa 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 Namerikawa is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1621 µg/m³Dec 139 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar20Moderate
Apr21Moderate
May20Moderate
Jun18Moderate
Jul14Moderate
Aug12Good
Sep10Good
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Namerikawa?

Namerikawa sits at 36.8°N, 137.4°E, 23 m above sea level, in Japan. The nearest listed city is Uozu, 6.0 km away.

Topography around Namerikawa

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

Within 3 km, the terrain around Namerikawa has only modest variations in elevation — a maximum elevation change of 97 m around an average of 27 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,438 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,123 m.

The land around Namerikawa is covered by artificial surfaces (43%) and cropland (41%) within 3 km, trees (33%) and water (31%) within 16 km, and trees (58%) and water (30%) within 80 km.

3 km
97 m
16 km
1,438 m
80 km
3,123 m
treesgrasslandcroplandartificial surfaceswater
June weather nearby: Uozu 6.0 km · Kamiichi 7.0 km · Gohyakkoku 11 km · Toyama 15 km · Kurobe-shi 18 km · Imizu 21 km · Nyūzen 23 km · Nishishinminato 26 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 Namerikawa (36.7597°, 137.3622°, elevation 23 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).