Maebashi weather in September

In September, Maebashi sees average daytime highs of 24°C and overnight lows near 17°C, with 201 mm of rain across 17.3 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 26°C in the first days to 21°C by the end. The sky is clear or mostly clear about 21% of the time in September, and the air most often feels humid.

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 Maebashi's 10th-clearest and 10th-windiest month. For the whole year in context, see Maebashi's year-round climate.

Daytime high
24°
3rd warmest
Overnight low
17°
10th coldest
Rainfall
201 mm
17.3 wet days
Daylight
12 h 12 min
5:31 AM – 5:45 PM
Cloud cover
69%
10th clearest
Wind
5 km/h
10th windiest
Solar energy
3.72 kWh/m²
Travel score
5.4
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 26°C in the first days to 21°C by the end.

A typical September day in Maebashi reaches about 24°C in the afternoon and slips back to 17°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 28°C. Set against its neighbours, September runs about 4°C cooler than August and about 5°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12620
22620
32620
42619
52619
62619
72519
82519
92519
102519
112518
122518
132418
142418
152418
162417
172417
182317
192317
202317
212316
222316
232216
242216
252215
262215
272215
282215
292115
302115

How September really feels in Maebashi

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.

Maebashi 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 / -2°6810.910.29.80.2
Feb / -2°6811.18.710.60.5
Mar10° / 11814.26.311.72.1
Apr16° / 12514.11.412.94.3
May20° / 12°14114.8013.95.6
Jun23° / 16°17817.4014.45.3
Jul27° / 20°21820.1014.24.8
Aug28° / 21°15718.1013.45.0
Sep24° / 17°20117.3012.25.4
Oct19° / 11°18014.9011.15.3
Nov13° / 749.60.410.13.9
Dec / 5910.85.19.61.5

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 13% of September, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13664
23565
33466
43466
53466
63466
73367
83367
93268
103268
113268
123367
133367
143268
153268
163268
173367
183367
193466
203466
213565
223664
233664
243763
253763
263763
273763
283763
293763
303763

Chance of precipitation in September

Any precipitation

Maebashi gets around 201 mm of rain over 17.3 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 58% and peaks near 60% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
160
260
360
460
560
660
760
860
960
1060
1160
1259
1359
1459
1559
1658
1758
1858
1958
2057
2157
2257
2356
2456
2556
2656
2756
2855
2955
3055

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 30% of days. Sticky, muggy-or-worse air turns up on roughly 32% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
117304913
218314912
318324811
429324710
5210334610
631034449
731234438
841334418
941435407
1051535387
1161735366
1271835346
1392034325
14102134315
15112233294
16132433274
17152532253
18172731223
19182831202
20203030182
21223129162
22253127152
23273327131
24293326111
2531342491
2633352381
2734362271
2836372151
2938372041
3040371840

Wind in September

Winds average 5 km/h in September.

Across September, 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.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
276calm
286calm
296calm
306calm

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 5:19 AM to 5:43 AM, and sunset from 6:08 PM to 5:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:196:08
212.85:206:06
312.75:216:05
412.75:216:03
512.75:226:02
612.65:236:00
712.65:245:59
812.55:255:57
912.55:255:56
1012.55:265:54
1112.45:275:53
1212.45:285:51
1312.35:295:49
1412.35:305:48
1512.35:305:46
1612.25:315:45
1712.25:325:43
1812.15:335:42
1912.15:345:40
2012.15:345:39
2112.05:355:37
2212.05:365:35
2312.05:375:34
2411.95:385:32
2511.95:395:31
2611.85:395:29
2711.85:405:28
2811.85:415:26
2911.75:425:25
3011.75:435:23

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.72 kWh/m².

For context, solar energy here swings from a low near 2.33 kWh/m² to a high of 5.42 kWh/m² in May across the year — September's 3.72 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.1Bright
24.1Bright
34.1Bright
44.0Bright
54.0Bright
64.0Moderate
73.9Moderate
83.9Moderate
93.9Moderate
103.8Moderate
113.8Moderate
123.8Moderate
133.8Moderate
143.7Moderate
153.7Moderate
163.7Moderate
173.6Moderate
183.6Moderate
193.6Moderate
203.5Moderate
213.5Moderate
223.5Moderate
233.5Moderate
243.5Moderate
253.4Moderate
263.4Moderate
273.4Moderate
283.4Moderate
293.3Moderate
303.3Moderate
Planning a trip in September

Is September a good time to visit Maebashi?

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

5.4
Sightseeing
2nd-best month of the year
4.5
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Maebashi for sightseeing.

What to pack for Maebashi in September

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

In September, Maebashi sees daytime highs around 24°C and nights near 17°C. Pack rain gear. Worth having: light clothes. About 17 days see rain.

rain gearlight clothes

UV index in Maebashi 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 Maebashi peaks around July 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 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 9Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep8Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Maebashi 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 Maebashi is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1821 µg/m³Dec 1610 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar19Moderate
Apr21Moderate
May20Moderate
Jun18Moderate
Jul15Moderate
Aug13Moderate
Sep12Good
Oct12Good
Nov11Good
Dec10Good
Location & terrain

Where is Maebashi?

Maebashi sits at 36.4°N, 139.1°E, 107 m above sea level, in Japan. The nearest listed city is Kanekomachi, 8.0 km away.

Topography around Maebashi

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

Within 3 km, the terrain around Maebashi has only modest variations in elevation — a maximum elevation change of 77 m around an average of 112 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,510 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,854 m.

The land around Maebashi is covered by artificial surfaces (76%) within 3 km, artificial surfaces (41%), trees (31%) and cropland (22%) within 16 km, and trees (71%) within 80 km.

3 km
77 m
16 km
1,510 m
80 km
2,854 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Kanekomachi 8.0 km · Takasaki 10 km · Ogura 10 km · Tamamura 12 km · Shibukawa 12 km · Isesaki 14 km · Fujioka 17 km · Ōmamachō-ōmama 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 Maebashi (36.4°, 139.0833°, elevation 107 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).