Nogi weather in September

In September, Nogi sees average daytime highs of 26°C and overnight lows near 20°C, with 206 mm of rain across 16.2 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 29°C in the first days to 24°C by the end. The sky is clear or mostly clear about 19% 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 Nogi's 10th-clearest and 8th-windiest month. For the whole year in context, see Nogi's year-round climate.

Daytime high
26°
3rd warmest
Overnight low
20°
10th coldest
Rainfall
206 mm
16.2 wet days
Daylight
12 h 12 min
5:29 AM – 5:42 PM
Cloud cover
69%
10th clearest
Wind
7 km/h
8th windiest
Solar energy
3.55 kWh/m²
Travel score
5.3
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 29°C in the first days to 24°C by the end.

A typical September day in Nogi reaches about 26°C in the afternoon and slips back to 20°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 22°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)
12922
22922
32922
42922
52822
62822
72822
82821
92821
102821
112721
122721
132720
142720
152720
162620
172620
182619
192619
202619
212519
222519
232518
242518
252518
262418
272417
282417
292417
302417

How September really feels in Nogi

Once humidity and wind are folded in, September 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

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Nogi 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 / -0°5561.89.81.7
Feb / 546.92.210.62.1
Mar13° / 10611.61.311.73.5
Apr18° / 12012.60.212.95.4
May23° / 14°15313.7013.96.1
Jun25° / 18°17716.5014.45.3
Jul29° / 22°20918.7014.24.3
Aug30° / 23°16116.3013.44.1
Sep26° / 20°20616.2012.25.3
Oct21° / 14°20013.9011.15.9
Nov16° / 889.4010.15.0
Dec11° / 546.80.49.62.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% 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 65%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13664
23664
33565
43565
53664
63763
73664
83565
93565
103664
113565
123466
133565
143466
153466
163367
173466
183466
193367
203367
213466
223367
233367
243466
253466
263466
273565
283664
293664
303664

Chance of precipitation in September

Any precipitation

Nogi gets around 206 mm of rain over 16.2 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 55% and peaks near 56% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
154
255
355
455
555
656
756
856
956
1056
1156
1256
1356
1456
1556
1656
1756
1855
1955
2055
2154
2254
2353
2453
2553
2653
2753
2853
2953
3053

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 57% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1011035486
2011135476
3021136465
4021237455
5021337434
6031337424
7041437414
8041538403
9151637373
10161837363
11171937342
12282036322
13292235302
143102335282
154112534261
164122633241
175132831221
186142930191
197153129171
208163228151
219173326141
2210183425121
2311193524101
241220362391
251321372170
261422372060
271523371950
281624371840
291725371730
301826371620

Wind in September

Winds average 7 km/h in September.

Across September, 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 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
212.85:176:04
312.75:186:02
412.75:196:01
512.75:205:59
612.65:215:58
712.65:215:56
812.55:225:55
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 3.55 kWh/m².

For context, solar energy here swings from a low near 2.38 kWh/m² to a high of 5.07 kWh/m² in May across the year — September's 3.55 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
14.0Moderate
23.9Moderate
33.9Moderate
43.9Moderate
53.9Moderate
63.8Moderate
73.8Moderate
83.8Moderate
93.7Moderate
103.7Moderate
113.7Moderate
123.6Moderate
133.6Moderate
143.6Moderate
153.5Moderate
163.5Moderate
173.5Moderate
183.4Moderate
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 Nogi?

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

5.3
Sightseeing
4th-best month of the year
5.3
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Nogi for sightseeing.

What to pack for Nogi in September

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

In September, Nogi sees daytime highs around 26°C and nights near 20°C. Pack rain gear. Worth having: light clothes. About 16 days see rain.

rain gearlight clothes

Sea temperature near Nogi 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 68 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 Nogi in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Nogi 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 Nogi 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 Nogi 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 Nogi?

Nogi sits at 36.2°N, 139.7°E, 23 m above sea level, in Japan. The nearest listed city is Koga, 5.0 km away.

Topography around Nogi

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

Within 3 km, the terrain around Nogi has only modest variations in elevation — a maximum elevation change of 33 m around an average of 21 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 396 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,553 m.

The land around Nogi is covered by cropland (42%) and artificial surfaces (33%) within 3 km, cropland (48%) and artificial surfaces (31%) within 16 km, and trees (46%), artificial surfaces (26%) and cropland (20%) within 80 km.

3 km
33 m
16 km
396 m
80 km
2,553 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Koga 5.0 km · Fujioka 8.0 km · Oyama 10 km · Kurihashi 11 km · Yachiyo 15 km · Sakai 15 km · Yūki 16 km · Washinomiya 16 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 Nogi (36.2279°, 139.7345°, 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. 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).