Ishikari weather in October

In October, Ishikari sees average daytime highs of 15°C and overnight lows near 10°C, with 101 mm of precipitation across 13.9 wet days and about 10.8 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 18°C in the first days to 12°C by the end. The sky is clear or mostly clear about 31% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 30 min at the start of October to 10 h 06 min by month's end. Set against the rest of the year, October is Ishikari's 2nd-clearest and 5th-windiest month. For the whole year in context, see Ishikari's year-round climate.

Daytime high
15°
5th warmest
Overnight low
10°
8th coldest
Precipitation
101 mm
13.9 wet days
Daylight
10 h 48 min
5:56 AM – 4:43 PM
Cloud cover
56%
2nd clearest
Wind
16 km/h
5th windiest
Solar energy
2.83 kWh/m²
Travel score
4.2
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 18°C in the first days to 12°C by the end.

A typical October day in Ishikari reaches about 15°C in the afternoon and slips back to 10°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 18°C. Set against its neighbours, October runs about 6°C cooler than September and about 7°C warmer than November.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11813
21813
31813
41712
51712
61712
71712
81711
91611
101611
111611
121611
131610
141510
151510
161510
17159
18149
19149
20149
21149
22148
23138
24138
25138
26138
27137
28127
29127
30127
31127

How October really feels in Ishikari

Once humidity and wind are folded in, October 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

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

Ishikari weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-2° / -6°8019.222.59.20.0
Feb-1° / -6°6416.118.410.20.0
Mar / -3°6212.51211.60.0
Apr / 6310.92.613.21.6
May14° / 83110.114.54.0
Jun18° / 13°7410.1015.15.7
Jul22° / 18°12712.2014.96.2
Aug24° / 19°16713.2013.86.3
Sep21° / 16°13913.4012.35.9
Oct15° / 10°10113.90.210.84.2
Nov / 11117.77.49.51.0
Dec / -3°10420.320.48.90.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 25% of October, with mostly cloudy or overcast conditions the remaining 44%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
25050
35050
45050
55149
65248
75248
85347
95446
105545
115644
125743
135941
145941
155941
166040
176040
186040
196040
206040
215941
225941
235941
245941
255842
265743
275743
285644
295545
305446
315347

Chance of precipitation in October

Any precipitationSnow

Ishikari gets around 101 mm of rain and snow over 13.9 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 45% and peaks near 48% on the wettest days, and about 0 day brings snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
1470
2470
3460
4460
5460
6460
7460
8450
9450
10450
11440
12440
13440
14430
15430
16430
17431
18431
19431
20431
21441
22441
23441
24441
25452
26452
27452
28462
29473
30473
31484

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 91% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
169274
271254
373243
475223
578202
680182
782162
885141
987121
1088111
119091
129280
139370
149460
159550
169550
179640
189730
199730
209820
219820
229820
239910
249910
259910
269910
279910
2810000
2910000
3010000
3110000

Wind in October

Winds average 16 km/h in October.

Across October, daily wind ranges from about 14 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze
3117light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 30 min at the start of October to 10 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 84 minutes over October. Sunrise moves from 5:38 AM to 6:15 AM, and sunset from 5:10 PM to 4:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.55:385:10
211.55:395:08
311.45:405:06
411.45:415:04
511.35:425:02
611.35:445:01
711.25:454:59
811.25:464:57
911.15:474:55
1011.15:484:53
1111.05:504:52
1211.05:514:50
1310.95:524:48
1410.95:534:47
1510.85:554:45
1610.85:564:43
1710.75:574:42
1810.75:584:40
1910.66:004:39
2010.66:014:37
2110.66:024:35
2210.56:034:34
2310.56:054:32
2410.46:064:31
2510.46:074:29
2610.36:094:28
2710.36:104:27
2810.26:114:25
2910.26:124:24
3010.16:144:22
3110.16:154:21

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 2.83 kWh/m².

For context, solar energy here swings from a low near 1.48 kWh/m² to a high of 5.5 kWh/m² in May across the year — October's 2.83 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.3Moderate
23.3Moderate
33.2Moderate
43.2Moderate
53.2Moderate
63.1Moderate
73.1Moderate
83.1Moderate
93.0Moderate
103.0Moderate
113.0Moderate
123.0Moderate
132.9Moderate
142.9Moderate
152.9Moderate
162.9Moderate
172.8Moderate
182.8Moderate
192.8Moderate
202.7Moderate
212.7Moderate
222.6Moderate
232.6Moderate
242.6Moderate
252.5Moderate
262.5Moderate
272.5Moderate
282.4Moderate
292.4Moderate
302.3Moderate
312.3Moderate
Planning a trip in October

Hazard calendar for Ishikari

In seasonPeak

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

Ishikari 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 October a good time to visit Ishikari?

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

4.2
Sightseeing
5th-best month of the year
0.5
Beach & pool
5th-best month of the year

October is a reasonable time to visit Ishikari for sightseeing.

What to pack for Ishikari in October

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

In October, Ishikari sees daytime highs around 15°C and nights near 10°C. Worth packing: a warm layer and rain gear. About 14 days see rain.

a warm layerrain gear

Sea temperature near Ishikari in October

The nearest coast averages about 17°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 15 km away) is warmest in August at about 22°C and coldest in February near 5°C.

It's comfortable for a long swim from Jul 31 to Sep 22 — about 1.8 months when the water holds above 20°C.

10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan7Bracing
Feb5Bracing
Mar5Bracing
Apr7Bracing
May10Bracing
Jun14Bracing
Jul19Cool
Aug22Refreshing
Sep21Refreshing
Oct17Cool
Nov13Bracing
Dec9Bracing

UV index in Ishikari in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ishikari peaks around August 18 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighHighVery highHighModerateLowAug 18UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar3Moderate
Apr5High
May7Very high
Jun7High
Jul5Moderate
Aug8Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Ishikari in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in Ishikari 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 1121 µg/m³Dec 169 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb15Moderate
Mar21Moderate
Apr21Moderate
May19Moderate
Jun13Moderate
Jul12Moderate
Aug11Good
Sep10Good
Oct12Good
Nov11Good
Dec9Good
Location & terrain

Where is Ishikari?

Ishikari sits at 43.2°N, 141.4°E, 0 m above sea level, in Japan. The nearest listed city is Tōbetsu, 13 km away.

Topography around Ishikari

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

Within 3 km, the terrain around Ishikari has only modest variations in elevation — a maximum elevation change of 14 m around an average of 3 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 414 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,859 m.

The land around Ishikari is covered by water (43%) and cropland (26%) within 3 km, water (45%) and cropland (20%) within 16 km, and trees (57%) and water (26%) within 80 km.

3 km
14 m
16 km
414 m
80 km
1,859 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Tōbetsu 13 km · Sapporo 19 km · Ebetsu 22 km · Otaru 29 km · Iwamizawa 33 km · Kitahiroshima 34 km · Bibai 42 km · Eniwa 43 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 Ishikari (43.2397°, 141.3539°, elevation 0 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).