Minamishibetsuchō weather in September

In September, Minamishibetsuchō sees average daytime highs of 19°C and overnight lows near 11°C, with 169 mm of rain across 15.9 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 22°C in the first days to 17°C by the end. The sky is clear or mostly clear about 20% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 06 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Minamishibetsuchō's 4th-clearest and 9th-windiest month. For the whole year in context, see Minamishibetsuchō's year-round climate.

Daytime high
19°
3rd warmest
Overnight low
11°
10th coldest
Rainfall
169 mm
15.9 wet days
Daylight
12 h 18 min
5:16 AM – 5:34 PM
Cloud cover
67%
4th clearest
Wind
9 km/h
9th windiest
Solar energy
3.6 kWh/m²
Travel score
5.2
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 22°C in the first days to 17°C by the end.

A typical September day in Minamishibetsuchō reaches about 19°C in the afternoon and slips back to 11°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 23°C. Set against its neighbours, September runs about 4°C cooler than August and about 7°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12214
22214
32214
42214
52213
62113
72113
82113
92113
102112
112012
122012
132012
142011
152011
161911
171911
181910
191910
201810
211810
22189
23189
24189
25179
26178
27178
28178
29178
30168

How September really feels in Minamishibetsuchō

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.

Minamishibetsuchō 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-5° / -12°6816.1219.10.0
Feb-4° / -11°6014.317.410.20.0
Mar / -7°8115.816.911.60.0
Apr / -1°8414.18.213.21.3
May15° / 9613.40.714.54.2
Jun19° / 11°9812.8015.25.5
Jul23° / 15°15714.40155.9
Aug23° / 16°17415.6013.85.8
Sep19° / 11°16915.9012.35.2
Oct13° / 13716.71.510.83.0
Nov / -2°1452015.19.40.3
Dec-2° / -9°1102123.68.70.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 62%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13466
23466
33565
43565
53565
63565
73565
83466
93565
103664
113664
123664
133763
143664
153763
163763
173862
183961
193961
204060
214060
224159
234159
244060
254258
264258
274357
284357
294357
304357

Chance of precipitation in September

Any precipitation

Minamishibetsuchō gets around 169 mm of rain over 15.9 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 53% and peaks near 53% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
151
251
351
452
552
652
753
853
953
1053
1153
1253
1353
1453
1553
1653
1753
1853
1953
2053
2153
2253
2353
2453
2553
2653
2753
2852
2952
3052

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 60% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
124352911
226352811
328362610
43036259
53236239
63436218
73735208
83935187
94234177
104534156
114833146
125132125
135430115
145729104
15602794
16632683
17662473
18702262
19722062
20741952
21771742
22801541
23821431
24841321
25851221
26881011
2790910
2890910
2992800
3093700

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 10 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
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 06 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 90 minutes over September. Sunrise moves from 4:58 AM to 5:33 AM, and sunset from 6:02 PM to 5:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.14:586:02
213.04:596:01
313.05:005:59
412.95:025:57
512.95:035:55
612.85:045:53
712.85:055:51
812.75:065:49
912.75:085:47
1012.65:095:45
1112.65:105:43
1212.55:115:42
1312.55:125:40
1412.45:135:38
1512.45:155:36
1612.35:165:34
1712.25:175:32
1812.25:185:30
1912.15:195:28
2012.15:215:26
2112.05:225:24
2212.05:235:22
2311.95:245:20
2411.95:255:18
2511.85:275:16
2611.85:285:15
2711.75:295:13
2811.75:305:11
2911.65:315:09
3011.65:335:07

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.6 kWh/m².

For context, solar energy here swings from a low near 1.44 kWh/m² to a high of 5.37 kWh/m² in May across the year — September's 3.6 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
14.0Moderate
24.0Moderate
33.9Moderate
43.9Moderate
53.9Moderate
63.9Moderate
73.8Moderate
83.8Moderate
93.8Moderate
103.7Moderate
113.7Moderate
123.7Moderate
133.6Moderate
143.6Moderate
153.6Moderate
163.6Moderate
173.5Moderate
183.5Moderate
193.5Moderate
203.5Moderate
213.4Moderate
223.4Moderate
233.4Moderate
243.4Moderate
253.3Moderate
263.3Moderate
273.3Moderate
283.2Moderate
293.2Moderate
303.2Moderate
Planning a trip in September

Hazard calendar for Minamishibetsuchō

In seasonPeak

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

Minamishibetsuchō 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 September a good time to visit Minamishibetsuchō?

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

5.2
Sightseeing
4th-best month of the year
2.4
Beach & pool
4th-best month of the year

September is a reasonable time to visit Minamishibetsuchō for sightseeing.

What to pack for Minamishibetsuchō in September

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

In September, Minamishibetsuchō sees daytime highs around 19°C and nights near 11°C. Pack rain gear. About 16 days see rain.

rain gear

Sea temperature near Minamishibetsuchō in September

The nearest coast averages about 21°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 60 km away) is warmest in August at about 21°C and coldest in February near 5°C.

It's comfortable for a long swim from Aug 5 to Sep 20 — about 1.5 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan6Bracing
Feb5Bracing
Mar5Bracing
Apr7Bracing
May10Bracing
Jun14Bracing
Jul18Cool
Aug21Refreshing
Sep21Refreshing
Oct17Cool
Nov12Bracing
Dec9Bracing

UV index in Minamishibetsuchō in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Minamishibetsuchō peaks around August 15 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighVery highHighModerateLowAug 15UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar3Moderate
Apr5High
May7Very high
Jun7High
Jul7High
Aug9Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Minamishibetsuchō 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 Minamishibetsuchō is worst in April — around 17 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1516 µg/m³Dec 197 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb10Good
Mar15Moderate
Apr17Moderate
May15Moderate
Jun10Good
Jul10Good
Aug8Good
Sep7Good
Oct9Good
Nov8Good
Dec7Good
Location & terrain

Where is Minamishibetsuchō?

Minamishibetsuchō sits at 44.2°N, 142.4°E, 134 m above sea level, in Japan. The nearest listed city is Nayoro, 23 km away.

Topography around Minamishibetsuchō

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

Within 3 km, the terrain around Minamishibetsuchō has only modest variations in elevation — a maximum elevation change of 138 m around an average of 145 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 686 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,253 m.

The land around Minamishibetsuchō is covered by cropland (50%) and trees (31%) within 3 km, trees (60%) and cropland (34%) within 16 km, and trees (74%) within 80 km.

3 km
138 m
16 km
686 m
80 km
2,253 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Nayoro 23 km · Asahikawa 43 km · Fukagawa 56 km · Rumoi 63 km · Ashibetsu 73 km · Takikawa 77 km · Mombetsu 81 km · Sunagawa 83 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 Minamishibetsuchō (44.154°, 142.3731°, elevation 134 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).