Shimo-furano weather in September

In September, Shimo-furano sees average daytime highs of 19°C and overnight lows near 11°C, with 143 mm of rain across 14.2 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 21°C in the first days to 16°C by the end. The sky is clear or mostly clear about 17% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 hours at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Shimo-furano's 6th-clearest and 9th-windiest month. For the whole year in context, see Shimo-furano's year-round climate.

Daytime high
19°
3rd warmest
Overnight low
11°
9th coldest
Rainfall
143 mm
14.2 wet days
Daylight
12 h 18 min
5:16 AM – 5:34 PM
Cloud cover
70%
6th clearest
Wind
8 km/h
9th windiest
Solar energy
3.47 kWh/m²
Travel score
5.1
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 21°C in the first days to 16°C by the end.

A typical September day in Shimo-furano 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 15°C and 22°C. Set against its neighbours, September runs about 4°C cooler than August and about 7°C warmer than October.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
12114
22114
32114
42113
52113
62013
72013
82013
92012
102012
112012
121912
131911
141911
151911
161911
171810
181810
191810
20189
21179
22179
23179
24178
25178
26168
27168
28167
29167
30167

How September really feels in Shimo-furano

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.

Shimo-furano 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-6° / -13°6814.919.49.20.0
Feb-4° / -12°581316.910.20.0
Mar / -8°831517.311.60.0
Apr / -1°8714.19.313.21.0
May14° / 96131.214.53.8
Jun18° / 11°8812.4015.25.3
Jul22° / 15°13915.2014.95.6
Aug22° / 16°17615.2013.85.7
Sep19° / 11°14314.2012.35.1
Oct12° / 117151.710.82.8
Nov / -4°11117.9149.50.2
Dec-3° / -11°9316.921.18.80.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13070
23070
33070
43070
53070
63169
73169
83169
93268
103268
113268
123466
133565
143565
153664
163664
173664
183763
193763
203862
213862
223763
233763
243763
253763
263763
273763
283763
293763
303763

Chance of precipitation in September

Any precipitation

Shimo-furano gets around 143 mm of rain over 14.2 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 47% and peaks near 48% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
147
247
347
447
547
647
747
847
947
1047
1147
1247
1347
1447
1547
1647
1747
1847
1947
2047
2147
2248
2348
2448
2548
2648
2748
2848
2948
3048

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 65% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13137248
23237238
33436227
43636207
53935197
64135186
74334176
84633166
94832145
105131135
115429125
125728114
135927104
14632593
15662383
16672283
17712072
18741862
19751762
20791551
21801451
22831241
23851131
24861031
2588921
2689821
2792710
2893610
2993610
3094510

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 hours 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 84 minutes over September. Sunrise moves from 4:59 AM to 5:32 AM, and sunset from 6:01 PM to 5:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.04:596:01
213.05:006:00
312.95:015:58
412.95:025:56
512.85:035:54
612.85:055:52
712.75:065:50
812.75:075:49
912.65:085:47
1012.65:095:45
1112.55:105:43
1212.55:115:41
1312.45:135:39
1412.45:145:37
1512.35:155:35
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
2511.85:265:17
2611.85:285:15
2711.75:295:13
2811.75:305:11
2911.65:315:09
3011.65:325:07

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.47 kWh/m².

For context, solar energy here swings from a low near 1.69 kWh/m² to a high of 5.22 kWh/m² in May across the year — September's 3.47 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.7Moderate
23.7Moderate
33.7Moderate
43.7Moderate
53.7Moderate
63.6Moderate
73.6Moderate
83.6Moderate
93.6Moderate
103.6Moderate
113.5Moderate
123.5Moderate
133.5Moderate
143.5Moderate
153.5Moderate
163.5Moderate
173.4Moderate
183.4Moderate
193.4Moderate
203.4Moderate
213.4Moderate
223.3Moderate
233.3Moderate
243.3Moderate
253.3Moderate
263.3Moderate
273.2Moderate
283.2Moderate
293.2Moderate
303.1Moderate
Planning a trip in September

Is September a good time to visit Shimo-furano?

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

5.1
Sightseeing
4th-best month of the year
2.0
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Shimo-furano for sightseeing.

What to pack for Shimo-furano in September

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

In September, Shimo-furano sees daytime highs around 19°C and nights near 11°C. Pack rain gear. About 14 days see rain.

rain gear

UV index in Shimo-furano 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 Shimo-furano peaks around August 17 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 17UV 8Dec 20UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar3Moderate
Apr6High
May8Very high
Jun7Very high
Jul6High
Aug9Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Shimo-furano 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 Shimo-furano is worst in April — around 17 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1517 µg/m³Dec 178 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb11Good
Mar16Moderate
Apr17Moderate
May15Moderate
Jun11Good
Jul11Good
Aug9Good
Sep8Good
Oct9Good
Nov9Good
Dec7Good
Location & terrain

Where is Shimo-furano?

Shimo-furano sits at 43.4°N, 142.4°E, 170 m above sea level, in Japan. The nearest listed city is Furano, 0.0 km away.

Topography around Shimo-furano

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

Within 3 km, the terrain around Shimo-furano has significant variations in elevation — a maximum elevation change of 292 m around an average of 195 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,587 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,253 m.

The land around Shimo-furano is covered by cropland (38%) and trees (31%) within 3 km, trees (72%) and cropland (21%) within 16 km, and trees (76%) within 80 km.

3 km
292 m
16 km
1,587 m
80 km
2,253 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Furano 0.0 km · Ashibetsu 24 km · Sunagawa 41 km · Bibai 43 km · Takikawa 45 km · Asahikawa 47 km · Fukagawa 49 km · Iwamizawa 53 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 Shimo-furano (43.35°, 142.3833°, elevation 170 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).