Chitose weather in October

In October, Chitose sees average daytime highs of 15°C and overnight lows near 9°C, with 91 mm of precipitation across 9.7 wet days and about 10.8 hours of daylight. It is the 5th-warmest and 5th-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 36% 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 Chitose's 1st-clearest and 3rd-windiest month. For the whole year in context, see Chitose's year-round climate.

Daytime high
15°
5th warmest
Overnight low
8th coldest
Precipitation
91 mm
9.7 wet days
Daylight
10 h 48 min
5:54 AM – 4:43 PM
Cloud cover
55%
1st clearest
Wind
13 km/h
3rd windiest
Solar energy
2.95 kWh/m²
Travel score
4.7
out of 10

Chitose is city in Hokkaido, Japan.

Density
165/km²
people per km²
Founded
1958

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

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 Chitose reaches about 15°C in the afternoon and slips back to 9°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 12°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)
11812
21812
31812
41811
51711
61711
71711
81711
91710
101610
111610
121610
13169
14169
15159
16159
17158
18158
19158
20148
21148
22148
23147
24137
25137
26137
27137
28136
29126
30126
31126

How October really feels in Chitose

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.

Chitose weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-1° / -7°366.379.20.0
Feb-0° / -7°346.26.710.30.0
Mar / -3°548.96.511.60.1
Apr / 7010.51.513.11.6
May13° / 9510.7014.43.6
Jun17° / 12°779.3015.15.3
Jul21° / 17°11611.9014.86.0
Aug23° / 19°16212.1013.76.3
Sep21° / 15°13712012.36.0
Oct15° / 919.70.110.84.7
Nov / 689.61.49.51.4
Dec / -4°548.16.88.90.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in October, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 21% of October, with mostly cloudy or overcast conditions the remaining 43%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24951
35050
45149
55149
65248
75347
85446
95545
105644
115743
125842
135941
145941
156040
166040
176040
186040
196139
206139
216139
226139
236139
246139
256040
266040
276040
286040
296040
306040
315941

Chance of precipitation in October

Any precipitation

Chitose gets around 91 mm of rain and snow over 9.7 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 32% and peaks near 37% on the wettest days, and about 0 day brings snow. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
236
336
435
535
635
734
834
933
1033
1132
1232
1331
1431
1531
1630
1730
1830
1930
2030
2130
2230
2330
2430
2530
2630
2730
2829
2929
3029
3129

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 90% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
168275
271254
373234
475223
577203
680182
781172
884151
986131
1087121
1188111
1289101
139190
149280
159370
169460
179550
189550
199640
209640
219730
229730
239820
249820
259910
269910
279910
289910
299910
309910
319910

Wind in October

Winds average 13 km/h in October.

Across October, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light 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 5:36 AM to 6:13 AM, and sunset from 5:09 PM to 4:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.55:365:09
211.55:375:07
311.45:395:05
411.45:405:03
511.35:415:01
611.35:425:00
711.25:434:58
811.25:444:56
911.15:464:54
1011.15:474:53
1111.05:484:51
1211.05:494:49
1311.05:504:48
1410.95:524:46
1510.95:534:44
1610.85:544:43
1710.85:554:41
1810.75:574:40
1910.75:584:38
2010.65:594:36
2110.66:004:35
2210.56:024:33
2310.56:034:32
2410.46:044:30
2510.46:054:29
2610.36:074:28
2710.36:084:26
2810.36:094:25
2910.26:104:23
3010.26:124:22
3110.16:134:21

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 2.95 kWh/m².

For context, solar energy here swings from a low near 1.65 kWh/m² to a high of 5.37 kWh/m² in May across the year — October's 2.95 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.4Moderate
23.3Moderate
33.3Moderate
43.3Moderate
53.3Moderate
63.2Moderate
73.2Moderate
83.2Moderate
93.1Moderate
103.1Moderate
113.1Moderate
123.1Moderate
133.1Moderate
143.0Moderate
153.0Moderate
163.0Moderate
173.0Moderate
182.9Moderate
192.9Moderate
202.9Moderate
212.8Moderate
222.8Moderate
232.7Moderate
242.7Moderate
252.7Moderate
262.6Moderate
272.6Moderate
282.5Moderate
292.5Moderate
302.5Moderate
312.4Moderate
Planning a trip in October

Hazard calendar for Chitose

In seasonPeak

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

Chitose sits in the Pacific typhoon belt; the season peaks July–October.

Chitose's rainy season runs May–October, when most of the year's rain falls.

Pacific typhoon
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is October a good time to visit Chitose?

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

4.7
Sightseeing
5th-best month of the year
0.6
Beach & pool
5th-best month of the year

October is a reasonable time to visit Chitose for sightseeing.

What to pack for Chitose in October

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

In October, Chitose sees daytime highs around 15°C and nights near 9°C. Worth packing: a warm layer and rain gear. About 10 days see rain.

a warm layerrain gear

Sea temperature near Chitose in October

The nearest coast averages about 16°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 22 km away) is warmest in August at about 20°C and coldest in March near 3°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan6Bracing
Feb4Bracing
Mar3Bracing
Apr5Bracing
May8Bracing
Jun13Bracing
Jul17Cool
Aug20Refreshing
Sep20Cool
Oct16Cool
Nov13Bracing
Dec10Bracing

UV index in Chitose 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 Chitose peaks around August 18 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 19 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 19UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar3Moderate
Apr6High
May7Very high
Jun6High
Jul5Moderate
Aug8Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Chitose 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 Chitose is worst in April — around 19 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1119 µg/m³Dec 158 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb14Moderate
Mar19Moderate
Apr19Moderate
May18Moderate
Jun13Moderate
Jul12Good
Aug10Good
Sep9Good
Oct11Good
Nov9Good
Dec8Good
Location & terrain

Where is Chitose?

Chitose sits at 42.8°N, 141.7°E, 15 m above sea level, in Japan. The nearest listed city is Eniwa, 10 km away.

Topography around Chitose

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

Within 3 km, the terrain around Chitose has only modest variations in elevation — a maximum elevation change of 59 m around an average of 26 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 260 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,859 m.

The land around Chitose is covered by artificial surfaces (46%) and trees (36%) within 3 km, trees (58%) and cropland (22%) within 16 km, and trees (58%) and water (26%) within 80 km.

3 km
59 m
16 km
260 m
80 km
1,859 m
treesgrasslandcroplandartificial surfaceswaterwetland
October weather nearby: Eniwa 10 km · Kitahiroshima 19 km · Tomakomai 21 km · Ebetsu 33 km · Sapporo 37 km · Shiraoi 39 km · Iwamizawa 43 km · Tōbetsu 46 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 Chitose (42.8194°, 141.6522°, elevation 15 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).