Shinjō weather in October

In October, Shinjō sees average daytime highs of 17°C and overnight lows near 10°C, with 131 mm of rain across 14.2 wet days and about 11 hours of daylight. It is the 6th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 20°C in the first days to 15°C by the end. The sky is clear or mostly clear about 20% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of October to 10 h 24 min by month's end. Set against the rest of the year, October is Shinjō's 2nd-clearest and 8th-windiest month. For the whole year in context, see Shinjō's year-round climate.

Daytime high
17°
6th warmest
Overnight low
10°
7th coldest
Rainfall
131 mm
14.2 wet days
Daylight
11 hours
5:55 AM – 4:53 PM
Cloud cover
66%
2nd clearest
Wind
8 km/h
8th windiest
Solar energy
2.88 kWh/m²
Travel score
4.9
out of 10

Shinjō is city in Yamagata Prefecture, Japan.

Density
185/km²
people per km²
Founded
1949

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 20°C in the first days to 15°C by the end.

A typical October day in Shinjō reaches about 17°C in the afternoon and slips back to 10°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 21°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)
12013
22013
32012
42012
51912
61912
71912
81911
91911
101911
111811
121810
131810
141810
151810
161710
17179
18179
19179
20179
21169
22168
23168
24168
25168
26158
27158
28157
29157
30157
31147

How October really feels in Shinjō

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.

Shinjō weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -4°13623.423.89.60.0
Feb / -3°1001918.910.50.0
Mar / -1°11818.713.111.70.6
Apr13° / 10414.32.5133.3
May19° / 10°10612.7014.15.6
Jun23° / 15°12313014.76.0
Jul26° / 19°20117.1014.45.4
Aug27° / 20°15715013.55.6
Sep23° / 16°13414.1012.35.8
Oct17° / 10°13114.20114.9
Nov11° / 11917.93.89.92.2
Dec / -1°14422.616.99.30.1

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

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

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13466
23466
33367
43466
53466
63466
73466
83466
93664
103763
113763
123862
133763
143862
153961
163961
173961
184060
194060
204060
214159
224159
234159
244060
254060
264159
274159
284159
294159
304159
314159

Chance of precipitation in October

Any precipitation

Shinjō gets around 131 mm of rain over 14.2 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 46% and peaks near 49% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
146
246
346
446
546
646
746
845
945
1045
1145
1244
1344
1444
1543
1643
1743
1844
1944
2044
2145
2245
2346
2446
2547
2647
2748
2848
2949
3049
3149

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 80% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14933143
25133133
35432122
45631112
55830102
6612892
7632791
8662581
9682471
10712261
11732061
12761851
13791650
14801550
15831340
16841240
17871030
1888930
1989830
2091720
2192620
2293520
2394510
2495410
2595410
2696310
2796310
2896310
2997300
3098200
3198200

Wind in October

Winds average 8 km/h in October.

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

051015151015202531
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
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 36 min at the start of October to 10 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 72 minutes over October. Sunrise moves from 5:40 AM to 6:11 AM, and sunset from 5:16 PM to 4:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.65:405:16
211.65:415:14
311.55:425:13
411.55:435:11
511.45:445:09
611.45:455:08
711.35:465:06
811.35:475:05
911.35:485:03
1011.25:495:02
1111.25:505:00
1211.15:514:59
1311.15:524:57
1411.15:534:56
1511.05:544:54
1611.05:554:53
1710.95:564:52
1810.95:574:50
1910.85:584:49
2010.85:594:47
2110.86:004:46
2210.76:014:45
2310.76:024:43
2410.66:034:42
2510.66:044:41
2610.66:054:40
2710.56:064:38
2810.56:084:37
2910.56:094:36
3010.46:104:35
3110.46:114:34

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 2.88 kWh/m².

For context, solar energy here swings from a low near 1.67 kWh/m² to a high of 5.25 kWh/m² in May across the year — October's 2.88 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.2Moderate
23.2Moderate
33.2Moderate
43.1Moderate
53.1Moderate
63.1Moderate
73.1Moderate
83.1Moderate
93.0Moderate
103.0Moderate
113.0Moderate
123.0Moderate
133.0Moderate
143.0Moderate
152.9Moderate
162.9Moderate
172.9Moderate
182.9Moderate
192.8Moderate
202.8Moderate
212.8Moderate
222.8Moderate
232.7Moderate
242.7Moderate
252.7Moderate
262.6Moderate
272.6Moderate
282.6Moderate
292.5Moderate
302.5Moderate
312.5Moderate
Planning a trip in October

Hazard calendar for Shinjō

In seasonPeak

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

Shinjō 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 Shinjō?

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

4.9
Sightseeing
6th-best month of the year
1.4
Beach & pool
6th-best month of the year

October is a reasonable time to visit Shinjō for sightseeing.

What to pack for Shinjō in October

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

In October, Shinjō sees daytime highs around 17°C and nights near 10°C. Pack rain gear. About 14 days see rain.

rain gear

Sea temperature near Shinjō in October

The nearest coast averages about 21°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 55 km away) is warmest in August at about 26°C and coldest in March near 9°C.

It's comfortable for a long swim from Jun 26 to Oct 25 — about 4 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan11Bracing
Feb10Bracing
Mar9Bracing
Apr10Bracing
May14Bracing
Jun19Cool
Jul23Refreshing
Aug26Warm
Sep25Warm
Oct21Refreshing
Nov18Cool
Dec14Bracing

UV index in Shinjō in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Shinjō peaks around August 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateAug 18UV 9Jan 1UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun8Very high
Jul7High
Aug9Very high
Sep8Very high
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Shinjō 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 Shinjō is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1721 µg/m³Dec 159 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar19Moderate
Apr21Moderate
May20Moderate
Jun15Moderate
Jul13Moderate
Aug11Good
Sep10Good
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Shinjō?

Shinjō sits at 38.8°N, 140.3°E, 99 m above sea level, in Japan. The nearest listed city is Obanazawa, 19 km away.

Topography around Shinjō

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

Within 3 km, the terrain around Shinjō has only modest variations in elevation — a maximum elevation change of 203 m around an average of 114 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,190 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,215 m.

The land around Shinjō is covered by cropland (43%), trees (28%) and artificial surfaces (26%) within 3 km, trees (74%) and cropland (20%) within 16 km, and trees (69%) within 80 km.

3 km
203 m
16 km
1,190 m
80 km
2,215 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Obanazawa 19 km · Murayama 34 km · Shonai 36 km · Higashine 37 km · Yachi 37 km · Tsuruoka 42 km · Sakata 42 km · Sagae 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 Shinjō (38.7586°, 140.3008°, elevation 99 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).