Kamikoizumi weather in July

In July, Kamikoizumi sees average daytime highs of 29°C and overnight lows near 22°C, with 220 mm of rain across 18.8 wet days and about 14.2 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 27°C in the first days to 30°C by the end. The sky is clear or mostly clear about 12% of the time in July, and the air most often feels oppressive.

Daylight stretches from about 14 h 24 min at the start of July to 13 h 54 min by month's end. Set against the rest of the year, July is Kamikoizumi's 11th-clearest and 11th-windiest month. For the whole year in context, see Kamikoizumi's year-round climate.

Daytime high
29°
2nd warmest
Overnight low
22°
11th coldest
Rainfall
220 mm
18.8 wet days
Daylight
14 h 12 min
4:41 AM – 6:55 PM
Cloud cover
77%
11th clearest
Wind
5 km/h
11th windiest
Solar energy
4.3 kWh/m²
Travel score
4.3
out of 10

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 27°C in the first days to 30°C by the end.

A typical July day in Kamikoizumi reaches about 29°C in the afternoon and slips back to 22°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 33°C. Set against its neighbours, July runs about 4°C warmer than June and about 1°C cooler than August.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12721
22721
32721
42721
52821
62821
72821
82821
92822
102822
112822
122822
132922
142922
152922
162922
172922
182922
192923
202923
212923
223023
233023
243023
253023
263023
273023
283023
293023
303023
313124

How July really feels in Kamikoizumi

Once humidity and wind are folded in, July averages 13 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
13
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Kamikoizumi weather by month

How July compares with the rest of the year at a glance. July is the 2nd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -0°556.129.81.6
Feb / 536.92.310.62.0
Mar13° / 10411.81.511.73.5
Apr18° / 12112.20.212.95.4
May23° / 14°15313.7013.96.1
Jun25° / 18°18716.7014.45.3
Jul29° / 22°22018.8014.24.3
Aug30° / 23°17116.4013.44.1
Sep26° / 20°22116.7012.25.3
Oct21° / 14°20613.7011.15.9
Nov15° / 838.6010.15.0
Dec10° / 516.70.49.62.8

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 13% of July, with mostly cloudy or overcast conditions the remaining 75%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12080
22080
32179
42278
52377
62377
72377
82377
92377
102377
112377
122377
132377
142377
152377
162377
172377
182377
192476
202476
212476
222575
232575
242773
252773
262971
273070
283169
293169
303466
313466

Chance of precipitation in July

Any precipitation

Kamikoizumi gets around 220 mm of rain over 18.8 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 60% and peaks near 66% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
165
265
365
466
566
666
766
866
966
1065
1165
1264
1364
1463
1562
1661
1760
1859
1958
2058
2157
2256
2355
2454
2553
2653
2752
2851
2951
3051
3151

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the oppressive band about 48% of days. Sticky, muggy-or-worse air turns up on roughly 88% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
152043301
251943321
341842341
441742361
531741382
631640392
721539412
821438423
921437443
1021336454
1111336465
1211235475
1311234486
1411133487
1511131498
1611030509
1711029519
1819285111
1919265212
2018255313
2118245314
2218235315
2317225416
2417215417
2517205418
2616185619
2706175720
2806165721
2906155722
3006145723
3106145723

Wind in July

Winds average 5 km/h in July.

Across July, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 24 min at the start of July to 13 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over July. Sunrise moves from 4:32 AM to 4:52 AM, and sunset from 6:59 PM to 6:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.44:326:59
214.44:336:59
314.44:336:59
414.44:346:59
514.44:346:59
614.44:356:58
714.44:356:58
814.44:366:58
914.44:366:58
1014.34:376:58
1114.34:376:57
1214.34:386:57
1314.34:396:57
1414.34:396:56
1514.34:406:56
1614.24:416:55
1714.24:416:55
1814.24:426:54
1914.24:436:54
2014.24:436:53
2114.14:446:53
2214.14:456:52
2314.14:456:51
2414.14:466:51
2514.04:476:50
2614.04:486:49
2714.04:486:48
2814.04:496:48
2913.94:506:47
3013.94:516:46
3113.94:526:45

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 4.3 kWh/m².

For context, solar energy here swings from a low near 2.4 kWh/m² to a high of 5.08 kWh/m² in May across the year — July's 4.3 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.0Bright
24.0Bright
34.1Bright
44.1Bright
54.1Bright
64.1Bright
74.1Bright
84.1Bright
94.1Bright
104.1Bright
114.2Bright
124.2Bright
134.2Bright
144.2Bright
154.2Bright
164.3Bright
174.3Bright
184.3Bright
194.3Bright
204.4Bright
214.4Bright
224.4Bright
234.5Bright
244.5Bright
254.5Bright
264.6Bright
274.6Bright
284.6Bright
294.7Bright
304.7Bright
314.7Bright
Planning a trip in July

Hazard calendar for Kamikoizumi

In seasonPeak

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

Kamikoizumi's rainy season runs March–October, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is July a good time to visit Kamikoizumi?

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

4.3
Sightseeing
7th-best month of the year
5.3
Beach & pool
2nd-best month of the year

July is a reasonable time to visit Kamikoizumi for sightseeing.

What to pack for Kamikoizumi in July

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

In July, Kamikoizumi sees daytime highs around 29°C and nights near 22°C. Pack light clothes and rain gear. About 19 days see rain.

light clothesrain gear

UV index in Kamikoizumi in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July 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 Kamikoizumi peaks around July 16 at about 9 (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 16UV 9Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep8Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Kamikoizumi in July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.

Air quality in Kamikoizumi is worst in April — around 26 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 14 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1426 µg/m³Dec 1814 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb21Moderate
Mar25Moderate
Apr26Moderate
May24Moderate
Jun20Moderate
Jul17Moderate
Aug16Moderate
Sep16Moderate
Oct16Moderate
Nov16Moderate
Dec14Moderate
Location & terrain

Where is Kamikoizumi?

Kamikoizumi sits at 36.3°N, 139.4°E, 26 m above sea level, in Japan. The nearest listed city is Menuma, 6.0 km away.

Topography around Kamikoizumi

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

Within 3 km, the terrain around Kamikoizumi has only modest variations in elevation — a maximum elevation change of 27 m around an average of 30 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 483 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,563 m.

The land around Kamikoizumi is covered by artificial surfaces (53%) and cropland (38%) within 3 km, artificial surfaces (44%) and cropland (32%) within 16 km, and trees (58%) and artificial surfaces (23%) within 80 km.

3 km
27 m
16 km
483 m
80 km
2,563 m
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Menuma 6.0 km · Ōta 7.0 km · Ashikaga 8.0 km · Ōwa 9.0 km · Tatebayashi 9.0 km · Gyōda 14 km · Hanyū 14 km · Kumagaya 15 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 Kamikoizumi (36.2643°, 139.4291°, elevation 26 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).