Suginami weather in July

In July, Suginami sees average daytime highs of 29°C and overnight lows near 22°C, with 171 mm of rain across 16.1 wet days and about 14.2 hours of daylight. It is the 2nd-warmest and 3rd-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 13% 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 Suginami's 11th-clearest and 10th-windiest month. For the whole year in context, see Suginami's year-round climate.

Daytime high
29°
2nd warmest
Overnight low
22°
11th coldest
Rainfall
171 mm
16.1 wet days
Daylight
14 h 12 min
4:37 AM – 6:52 PM
Cloud cover
77%
11th clearest
Wind
9 km/h
10th windiest
Solar energy
4.69 kWh/m²
Travel score
4.7
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 Suginami 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 23°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
52721
62821
72821
82821
92822
102822
112822
122822
132822
142822
152922
162922
172922
182922
192923
202923
212923
222923
232923
243023
253023
263023
273023
283023
293023
303024
313024

How July really feels in Suginami

Once humidity and wind are folded in, July averages 11 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
11
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.

Suginami weather by month

How July compares with the rest of the year at a glance. July is the 2nd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 616.71.59.81.8
Feb / 617.41.710.62.1
Mar13° / 11012.5111.73.4
Apr18° / 11411.90.112.95.3
May22° / 14°14012.5013.96.2
Jun25° / 18°15314.9014.45.6
Jul29° / 22°17116.1014.24.7
Aug30° / 23°12713.6013.44.5
Sep26° / 20°17414.5012.25.6
Oct21° / 14°19112.4011.16.1
Nov16° / 919.5010.15.1
Dec11° / 607.40.29.62.9

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 11% 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 (%)
11882
21882
32080
42179
52179
62179
72179
82179
92278
102278
112278
122278
132278
142377
152377
162278
172278
182377
192476
202476
212575
222575
232674
242872
252872
263169
273169
283367
293466
303466
313664

Chance of precipitation in July

Any precipitation

Suginami gets around 171 mm of rain over 16.1 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 51% and peaks near 60% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
160
260
360
460
560
660
759
859
958
1057
1156
1255
1353
1452
1551
1650
1749
1848
1947
2046
2146
2245
2344
2443
2543
2642
2742
2841
2941
3040
3140

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 86% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1141943312
2041942332
3041840352
4031739373
5031738393
6021637414
7021635434
8021534445
9021532456
10021531466
11021430477
12021429488
13021427499
14021426499
150213255010
160213245011
170212235112
180212225113
190211215214
200210205315
210210205216
22029195317
23028195318
24018195319
25017185420
26017175421
27016175422
28016165423
29016155424
30016145425
31016145425

Wind in July

Winds average 9 km/h in July.

Across July, daily wind ranges from about 8 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
139calm
149calm
159calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

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 4:29 AM to 4:48 AM, and sunset from 6:55 PM to 6:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.44:296:55
214.44:306:55
314.44:306:55
414.44:306:55
514.44:316:55
614.44:316:55
714.44:326:55
814.44:326:54
914.44:336:54
1014.34:346:54
1114.34:346:54
1214.34:356:53
1314.34:356:53
1414.34:366:53
1514.34:376:52
1614.24:376:52
1714.24:386:51
1814.24:396:51
1914.24:396:50
2014.24:406:50
2114.14:416:49
2214.14:416:48
2314.14:426:48
2414.14:436:47
2514.04:446:46
2614.04:446:46
2714.04:456:45
2814.04:466:44
2913.94:476:43
3013.94:486:42
3113.94:486:42

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 4.69 kWh/m².

For context, solar energy here swings from a low near 2.37 kWh/m² to a high of 5.24 kWh/m² in May across the year — July's 4.69 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.4Bright
24.4Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
104.5Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.9Bright
254.9Bright
264.9Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.1Bright
Planning a trip in July

Hazard calendar for Suginami

In seasonPeak

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

Suginami 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 July a good time to visit Suginami?

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

4.7
Sightseeing
7th-best month of the year
5.7
Beach & pool
2nd-best month of the year

July is a reasonable time to visit Suginami for sightseeing.

What to pack for Suginami in July

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

In July, Suginami sees daytime highs around 29°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

Sea temperature near Suginami in July

The nearest coast averages about 22°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 32 km away) is warmest in August at about 24°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 23 to Oct 28 — about 4.2 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb13Bracing
Mar13Bracing
Apr15Bracing
May17Cool
Jun20Cool
Jul22Refreshing
Aug24Warm
Sep23Refreshing
Oct21Refreshing
Nov19Cool
Dec16Cool

UV index in Suginami 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 Suginami peaks around July 24 at about 10 (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 24UV 10Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul10Very high
Aug10Very high
Sep8Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Suginami 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 Suginami is worst in March — around 25 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 14 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2425 µg/m³Dec 1914 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb18Moderate
Mar25Moderate
Apr25Moderate
May24Moderate
Jun19Moderate
Jul16Moderate
Aug15Moderate
Sep15Moderate
Oct16Moderate
Nov16Moderate
Dec14Moderate
Location & terrain

Where is Suginami?

Suginami sits at 36.2°N, 140.3°E, 25 m above sea level, in Japan. The nearest listed city is Ishioka, 3.0 km away.

Topography around Suginami

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

Within 3 km, the terrain around Suginami has only modest variations in elevation — a maximum elevation change of 43 m around an average of 22 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 820 m; within 80 km, large variations in elevation — a maximum elevation change of 996 m.

The land around Suginami is covered by artificial surfaces (43%), trees (30%) and cropland (20%) within 3 km, trees (51%) and cropland (23%) within 16 km, and trees (33%), water (23%) and cropland (22%) within 80 km.

3 km
43 m
16 km
820 m
80 km
996 m
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Ishioka 3.0 km · Kasumigaura 6.0 km · Omitama 10 km · Tsuchiura 14 km · Okunoya 15 km · Sakuragawa 16 km · Tomobe 17 km · Makabe 18 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 Suginami (36.2013°, 140.2841°, elevation 25 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).