Kumamoto weather in July

In July, Kumamoto sees average daytime highs of 29°C and overnight lows near 23°C, with 301 mm of rain across 16.3 wet days and about 13.9 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 21% of the time in July, and the air most often feels oppressive.

Daylight stretches from about 14 h 06 min at the start of July to 13 h 42 min by month's end. Set against the rest of the year, July is Kumamoto's 11th-clearest and 6th-windiest month. For the whole year in context, see Kumamoto's year-round climate.

Daytime high
29°
2nd warmest
Overnight low
23°
11th coldest
Rainfall
301 mm
16.3 wet days
Daylight
14 hours
5:24 AM – 7:22 PM
Cloud cover
71%
11th clearest
Wind
8 km/h
6th windiest
Solar energy
4.64 kWh/m²
Travel score
4.8
out of 10

Kumamoto is city in Kumamoto prefecture, Japan.

Density
1,897/km²
people per km²
Founded
1889

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

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 Kumamoto reaches about 29°C in the afternoon and slips back to 23°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 31°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)
12622
22722
32722
42722
52722
62723
72723
82723
92823
102823
112823
122823
132823
142823
152923
162923
172924
182924
192924
202924
212924
222924
232924
243024
253024
263024
273024
283024
293024
303024
313024

How July really feels in Kumamoto

Once humidity and wind are folded in, July averages 14 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
14
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.

Kumamoto 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 / 7910.61.810.11.8
Feb10° / 9610.21.210.82.3
Mar14° / 14213.10.211.83.8
Apr18° / 11°15412.1012.85.5
May22° / 15°17812013.76.4
Jun25° / 20°40317014.15.4
Jul29° / 23°30116.3013.94.8
Aug30° / 24°13513013.24.7
Sep27° / 21°15611.8012.26.1
Oct23° / 15°988.3011.27.1
Nov17° / 10°938.8010.35.6
Dec11° / 84100.99.92.9

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 12% of July, with mostly cloudy or overcast conditions the remaining 67%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11684
21882
31882
41981
52080
62179
72179
82377
92476
102674
112773
122872
132971
143070
153070
163268
173367
183565
193565
203763
213862
224060
234159
244357
254555
264555
274753
284852
294951
305050
315050

Chance of precipitation in July

Any precipitation

Kumamoto gets around 301 mm of rain over 16.3 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 53% and peaks near 71% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
171
271
370
468
567
665
764
862
960
1058
1157
1255
1353
1452
1550
1649
1748
1847
1946
2046
2145
2245
2344
2444
2543
2643
2743
2842
2942
3042
3142

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 76% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11733581
21632601
30530641
40429661
50328681
60326692
70225712
80224722
90123742
100122743
110121753
120120763
130119764
140018784
150016795
160015805
170014806
180014806
190013807
200012817
210011818
220011818
230010819
24009829
25009829
260088210
270078310
280078310
290078310
300068410
310068410

Wind in July

Winds average 8 km/h in July.

Across July, daily wind ranges from about 7 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 06 min at the start of July to 13 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over July. Sunrise moves from 5:16 AM to 5:34 AM, and sunset from 7:25 PM to 7:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.15:167:25
214.15:177:25
314.15:177:25
414.15:187:25
514.15:187:25
614.15:197:24
714.15:197:24
814.15:207:24
914.15:207:24
1014.15:217:24
1114.05:217:23
1214.05:227:23
1314.05:227:23
1414.05:237:23
1514.05:237:22
1614.05:247:22
1713.95:247:21
1813.95:257:21
1913.95:267:21
2013.95:267:20
2113.95:277:20
2213.95:287:19
2313.85:287:18
2413.85:297:18
2513.85:307:17
2613.85:307:17
2713.85:317:16
2813.75:327:15
2913.75:327:15
3013.75:337:14
3113.75:347:13

Solar energy in July

Daily solar energy (kWh/m²)

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

For context, solar energy here swings from a low near 2.31 kWh/m² to a high of 5.15 kWh/m² in May across the year — July's 4.64 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
13.8Moderate
23.9Moderate
33.9Moderate
43.9Moderate
54.0Bright
64.1Bright
74.1Bright
84.2Bright
94.3Bright
104.3Bright
114.4Bright
124.5Bright
134.5Bright
144.6Bright
154.7Bright
164.7Bright
174.8Bright
184.8Bright
194.9Bright
204.9Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in July

Hazard calendar for Kumamoto

In seasonPeak

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

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

Kumamoto'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 July a good time to visit Kumamoto?

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

4.8
Sightseeing
7th-best month of the year
5.7
Beach & pool
3rd-best month of the year

July is a reasonable time to visit Kumamoto for sightseeing.

What to pack for Kumamoto in July

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

In July, Kumamoto sees daytime highs around 29°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

Sea temperature near Kumamoto in July

The nearest coast averages about 25°C in July — 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 27°C and coldest in February near 13°C.

It's comfortable for a long swim from May 27 to Nov 13 — about 5.6 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar14Bracing
Apr16Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov20Cool
Dec17Cool

UV index in Kumamoto 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 Kumamoto peaks around June 22 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 highModerateJun 22UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr8Very high
May8Very high
Jun10Extreme
Jul10Extreme
Aug9Very high
Sep10Very high
Oct7High
Nov4Moderate
Dec3Moderate

Air quality in Kumamoto 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 Kumamoto is worst in March — around 25 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (July, 13 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2325 µg/m³Jul 2114 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb20Moderate
Mar25Moderate
Apr25Moderate
May23Moderate
Jun19Moderate
Jul13Moderate
Aug15Moderate
Sep14Moderate
Oct14Moderate
Nov16Moderate
Dec15Moderate
Location & terrain

Where is Kumamoto?

Kumamoto sits at 32.8°N, 130.7°E, 9 m above sea level, in Japan. The nearest listed city is Kotō, 6.0 km away.

Topography around Kumamoto

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

Within 3 km, the terrain around Kumamoto has significant variations in elevation — a maximum elevation change of 441 m around an average of 51 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 674 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,765 m.

The land around Kumamoto is covered by artificial surfaces (60%) and trees (34%) within 3 km, trees (31%), artificial surfaces (26%) and cropland (25%) within 16 km, and trees (66%) within 80 km.

3 km
441 m
16 km
674 m
80 km
1,765 m
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Kotō 6.0 km · Uekimachi-mōno 10 km · Shimada 11 km · Okino 12 km · Kōshi 12 km · Uto 14 km · Mifune 16 km · Matsubase 17 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 Kumamoto (32.8059°, 130.6918°, elevation 9 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).