Fukagawa weather in September

In September, Fukagawa sees average daytime highs of 21°C and overnight lows near 12°C, with 144 mm of rain across 14.5 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 23°C in the first days to 18°C by the end. The sky is clear or mostly clear about 21% 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 Fukagawa's 4th-clearest and 9th-windiest month. For the whole year in context, see Fukagawa's year-round climate.

Daytime high
21°
3rd warmest
Overnight low
12°
10th coldest
Rainfall
144 mm
14.5 wet days
Daylight
12 h 18 min
5:17 AM – 5:35 PM
Cloud cover
66%
4th clearest
Wind
8 km/h
9th windiest
Solar energy
3.61 kWh/m²
Travel score
5.6
out of 10

Fukagawa is city in Hokkaidō, Japan.

Density
49/km²
people per km²
Founded
1963

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 23°C in the first days to 18°C by the end.

A typical September day in Fukagawa reaches about 21°C in the afternoon and slips back to 12°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 24°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)
12315
22315
32315
42315
52315
62215
72214
82214
92214
102214
112213
122113
132113
142113
152112
162112
172012
182012
192011
202011
211911
221911
231910
241910
251910
261810
27189
28189
29189
30189

How September really feels in Fukagawa

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.

Fukagawa 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-3° / -11°521419.79.10.0
Feb-2° / -10°4612.116.710.20.0
Mar / -6°6413.714.611.60.0
Apr10° / 7213.14.813.22.1
May16° / 8812.70.214.54.6
Jun20° / 12°8711.6015.25.8
Jul24° / 16°14113.7014.96.1
Aug24° / 17°16814.3013.86.0
Sep21° / 12°14414.5012.35.6
Oct14° / 11315.40.710.83.6
Nov / -1°1021811.29.50.6
Dec-1° / -8°7716.920.58.80.0

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 18% of September, with mostly cloudy or overcast conditions the remaining 60%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13664
23565
33565
43565
53565
63664
73664
83664
93664
103763
113862
123763
133862
143961
154060
164060
174060
184159
194159
204258
214357
224357
234456
244357
254456
264456
274456
284555
294555
304456

Chance of precipitation in September

Any precipitation

Fukagawa gets around 144 mm of rain over 14.5 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 48% and peaks near 50% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
146
246
346
447
547
647
747
847
947
1048
1148
1248
1348
1448
1548
1648
1748
1848
1948
2048
2149
2249
2349
2449
2550
2650
2750
2850
2950
3050

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 52% of days. Sticky, muggy-or-worse air turns up on roughly 7% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1173133172
2193232161
3203230161
4223329151
5243328141
6263326131
7283325121
8313423111
9333322111
10363320101
1139331991
1241321880
1344321670
1447311560
1551301360
1653301250
1756291140
186027940
196326830
206525730
216824620
227122520
237321420
247620310
257719310
268017210
278116210
288415100
298514100
308712100

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 8 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
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
269calm
279calm
289calm
299calm
309calm

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 5:00 AM to 5:34 AM, and sunset from 6:03 PM to 5:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.15:006:03
213.05:016:01
313.05:026:00
412.95:035:58
512.95:055:56
612.85:065:54
712.85:075:52
812.75:085:50
912.75:095:48
1012.65:105:46
1112.65:115:45
1212.55:135:43
1312.45:145:41
1412.45:155:39
1512.35:165:37
1612.35:175:35
1712.25:185:33
1812.25:205:31
1912.15:215:29
2012.15:225:27
2112.05:235:25
2212.05:245:24
2311.95:265:22
2411.95:275:20
2511.85:285:18
2611.85:295:16
2711.75:305:14
2811.75:315:12
2911.65:335:10
3011.65:345:08

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.61 kWh/m².

For context, solar energy here swings from a low near 1.49 kWh/m² to a high of 5.33 kWh/m² in May across the year — September's 3.61 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
14.0Bright
24.0Moderate
34.0Moderate
43.9Moderate
53.9Moderate
63.9Moderate
73.8Moderate
83.8Moderate
93.8Moderate
103.8Moderate
113.7Moderate
123.7Moderate
133.7Moderate
143.6Moderate
153.6Moderate
163.6Moderate
173.6Moderate
183.5Moderate
193.5Moderate
203.5Moderate
213.5Moderate
223.4Moderate
233.4Moderate
243.4Moderate
253.3Moderate
263.3Moderate
273.3Moderate
283.3Moderate
293.2Moderate
303.2Moderate
Planning a trip in September

Hazard calendar for Fukagawa

In seasonPeak

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

Fukagawa 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 Fukagawa?

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

5.6
Sightseeing
4th-best month of the year
3.2
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Fukagawa for sightseeing.

What to pack for Fukagawa in September

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

In September, Fukagawa sees daytime highs around 21°C and nights near 12°C. Pack rain gear. About 15 days see rain.

rain gear

Sea temperature near Fukagawa 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 38 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 3 to Sep 20 — about 1.6 months when the water holds above 20°C.

10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan6Bracing
Feb5Bracing
Mar5Bracing
Apr7Bracing
May10Bracing
Jun14Bracing
Jul18Cool
Aug21Refreshing
Sep21Refreshing
Oct17Cool
Nov13Bracing
Dec9Bracing

UV index in Fukagawa 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 Fukagawa 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighHighVery highHighModerateLowAug 17UV 8Dec 20UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar3Moderate
Apr5High
May7Very high
Jun7High
Jul6High
Aug8Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Fukagawa 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 Fukagawa is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1220 µg/m³Dec 159 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb15Moderate
Mar20Moderate
Apr21Moderate
May19Moderate
Jun14Moderate
Jul13Moderate
Aug11Good
Sep11Good
Oct12Good
Nov10Good
Dec9Good
Location & terrain

Where is Fukagawa?

Fukagawa sits at 43.7°N, 142.0°E, 40 m above sea level, in Japan. The nearest listed city is Takikawa, 20 km away.

Topography around Fukagawa

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

Within 3 km, the terrain around Fukagawa has only modest variations in elevation — a maximum elevation change of 75 m around an average of 51 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 834 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,253 m.

The land around Fukagawa is covered by cropland (61%) and artificial surfaces (20%) within 3 km, trees (50%) and cropland (42%) within 16 km, and trees (66%) within 80 km.

3 km
75 m
16 km
834 m
80 km
2,253 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Takikawa 20 km · Ashibetsu 25 km · Sunagawa 27 km · Asahikawa 27 km · Rumoi 41 km · Bibai 45 km · Shimo-furano 49 km · Furano 49 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 Fukagawa (43.7081°, 142.0392°, elevation 40 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).