Sugito weather in September

In September, Sugito sees average daytime highs of 27°C and overnight lows near 21°C, with 172 mm of rain across 13.7 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 30°C in the first days to 25°C by the end. The sky is clear or mostly clear about 21% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 48 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Sugito's 10th-clearest and 6th-windiest month. For the whole year in context, see Sugito's year-round climate.

Daytime high
27°
3rd warmest
Overnight low
21°
10th coldest
Rainfall
172 mm
13.7 wet days
Daylight
12 h 12 min
5:29 AM – 5:42 PM
Cloud cover
68%
10th clearest
Wind
9 km/h
6th windiest
Solar energy
3.58 kWh/m²
Travel score
5.5
out of 10

Sugito is town in Kitakatsushika district, Saitama prefecture, Japan.

Density
1,479/km²
people per km²
Founded
1889

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 30°C in the first days to 25°C by the end.

A typical September day in Sugito reaches about 27°C in the afternoon and slips back to 21°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 31°C. Set against its neighbours, September runs about 4°C cooler than August and about 6°C warmer than October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13023
23023
33023
43023
52923
62923
72922
82922
92922
102922
112822
122821
132821
142821
152721
162721
172720
182720
192720
202620
212619
222619
232619
242519
252519
262518
272518
282518
292518
302418

How September really feels in Sugito

Once humidity and wind are folded in, September averages 4 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
4
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Sugito weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 576.11.59.82.2
Feb10° / 546.81.610.62.5
Mar14° / 9910.80.811.73.9
Apr19° / 10511.10.112.95.8
May23° / 15°12812.2013.96.4
Jun26° / 19°15214.1014.45.6
Jul30° / 23°15914.7014.24.4
Aug31° / 24°11812.3013.44.0
Sep27° / 21°17213.7012.25.5
Oct22° / 14°19012.6011.16.2
Nov16° / 819.2010.15.4
Dec12° / 526.50.29.63.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 63%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13763
23862
33763
43763
53763
63862
73862
83862
93763
103862
113763
123763
133664
143664
153664
163664
173664
183664
193565
203565
213466
223565
233565
243565
253664
263664
273664
283763
293763
303763

Chance of precipitation in September

Any precipitation

Sugito gets around 172 mm of rain over 13.7 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 46% and peaks near 47% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
143
244
344
444
544
645
745
845
946
1046
1146
1246
1346
1446
1546
1647
1747
1847
1947
2047
2147
2246
2346
2446
2546
2646
2746
2846
2946
3046

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 30% of days. Sticky, muggy-or-worse air turns up on roughly 61% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1019314811
2029324710
30210324610
4021033459
5021134448
6131234438
7131334427
8141434407
9151534396
10151634376
11161734365
12271834345
13281934325
14292034314
153102233284
164112332264
174122532243
185142631223
196152730202
206162829182
217172928162
228193027142
239203126131
2410203225111
2511213325101
261122342481
271223352371
281323352260
291524362150
301625362040

Wind in September

Winds average 9 km/h in September.

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

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 48 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over September. Sunrise moves from 5:17 AM to 5:40 AM, and sunset from 6:05 PM to 5:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:176:05
212.85:186:03
312.75:186:02
412.75:196:00
512.75:205:59
612.65:215:57
712.65:225:56
812.55:225:54
912.55:235:53
1012.55:245:51
1112.45:255:50
1212.45:255:48
1312.35:265:47
1412.35:275:45
1512.35:285:44
1612.25:295:42
1712.25:295:41
1812.15:305:39
1912.15:315:38
2012.15:325:36
2112.05:335:34
2212.05:335:33
2312.05:345:31
2411.95:355:30
2511.95:365:28
2611.85:375:27
2711.85:385:25
2811.85:385:24
2911.75:395:22
3011.75:405:21

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.58 kWh/m².

For context, solar energy here swings from a low near 2.38 kWh/m² to a high of 5.04 kWh/m² in May across the year — September's 3.58 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.0Bright
24.0Bright
34.0Moderate
44.0Moderate
53.9Moderate
63.9Moderate
73.9Moderate
83.8Moderate
93.8Moderate
103.8Moderate
113.7Moderate
123.7Moderate
133.6Moderate
143.6Moderate
153.6Moderate
163.5Moderate
173.5Moderate
183.5Moderate
193.4Moderate
203.4Moderate
213.4Moderate
223.3Moderate
233.3Moderate
243.3Moderate
253.3Moderate
263.2Moderate
273.2Moderate
283.2Moderate
293.1Moderate
303.1Moderate
Planning a trip in September

Is September a good time to visit Sugito?

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

5.5
Sightseeing
5th-best month of the year
5.9
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Sugito for sightseeing.

What to pack for Sugito in September

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

In September, Sugito sees daytime highs around 27°C and nights near 21°C. Pack light clothes and rain gear. About 14 days see rain.

light clothesrain gear

Sea temperature near Sugito in September

The nearest coast averages about 25°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 47 km away) is warmest in August at about 26°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 7 to Nov 3 — about 4.9 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar13Bracing
Apr15Cool
May18Cool
Jun21Refreshing
Jul23Refreshing
Aug26Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Sugito in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Sugito peaks around July 16 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 16UV 10Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Sugito in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Sugito 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 Sugito?

Sugito sits at 36.0°N, 139.7°E, 10 m above sea level, in Japan. The nearest listed city is Miyashiro, 1.0 km away.

Topography around Sugito

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

Within 3 km, the terrain around Sugito has only modest variations in elevation — a maximum elevation change of 24 m around an average of 8 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 41 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,064 m.

The land around Sugito is covered by cropland (43%) and artificial surfaces (43%) within 3 km, artificial surfaces (48%) and cropland (35%) within 16 km, and trees (42%), artificial surfaces (29%) and cropland (20%) within 80 km.

3 km
24 m
16 km
41 m
80 km
2,064 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Miyashiro 1.0 km · Satte 5.0 km · Kasukabe 6.0 km · Shiraoka 6.0 km · Kukichūō 6.0 km · Iwatsuki 8.0 km · Washinomiya 10 km · Hasuda 10 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 Sugito (36.0311°, 139.7264°, elevation 10 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. 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).