Ōmagari weather in October

In October, Ōmagari sees average daytime highs of 17°C and overnight lows near 9°C, with 141 mm of rain across 14.1 wet days and about 11 hours of daylight. It is the 6th-warmest and 4th-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 18 min by month's end. Set against the rest of the year, October is Ōmagari's 2nd-clearest and 8th-windiest month. For the whole year in context, see Ōmagari's year-round climate.

Daytime high
17°
6th warmest
Overnight low
7th coldest
Rainfall
141 mm
14.1 wet days
Daylight
10 h 54 min
5:55 AM – 4:51 PM
Cloud cover
65%
2nd clearest
Wind
8 km/h
8th windiest
Solar energy
2.95 kWh/m²
Travel score
5.0
out of 10

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 Ōmagari reaches about 17°C in the afternoon and slips back to 9°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)
12012
22012
32012
42012
52011
61911
71911
81911
91911
101910
111810
121810
131810
14189
15189
16189
17179
18179
19178
20178
21168
22168
23168
24167
25167
26157
27157
28157
29157
30156
31146

How October really feels in Ōmagari

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.

Ōmagari weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -5°11021.121.69.50.0
Feb / -5°90171710.40.0
Mar / -1°11517.912.111.70.7
Apr13° / 11215.22.3133.3
May19° / 10°12113.5014.15.5
Jun23° / 15°13112.8014.76.0
Jul26° / 19°20617014.55.4
Aug27° / 20°17316.2013.55.4
Sep24° / 16°15214.2012.35.8
Oct17° / 14114.10115.0
Nov11° / 12917.63.59.82.1
Dec / -2°1302115.99.30.1

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 20% of October, with mostly cloudy or overcast conditions the remaining 60%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23763
33763
43763
53763
63862
73862
83862
93961
104060
114060
124159
134258
144357
154258
164258
174258
184357
194357
204357
214357
224357
234258
244159
254159
264159
274060
284060
294060
303961
313961

Chance of precipitation in October

Any precipitation

Ōmagari gets around 141 mm of rain over 14.1 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 45% and peaks near 49% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
145
245
345
445
545
645
745
844
944
1044
1143
1243
1342
1442
1542
1642
1742
1843
1943
2044
2144
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 81% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15132143
25431132
35630122
45829112
56127102
6642691
7652591
8682381
9702271
10732061
11741961
12771751
13791641
14821440
15831340
16861130
17871030
1889920
1990820
2091720
2193610
2294510
2395410
2495410
2596310
2696310
2797300
2897300
2998200
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 9 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
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 36 min at the start of October to 10 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over October. Sunrise moves from 5:39 AM to 6:11 AM, and sunset from 5:15 PM to 4:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.65:395:15
211.55:405:13
311.55:415:12
411.55:425:10
511.45:435:08
611.45:445:07
711.35:455:05
811.35:465:04
911.25:475:02
1011.25:485:00
1111.25:494:59
1211.15:514:57
1311.15:524:56
1411.05:534:54
1511.05:544:53
1610.95:554:51
1710.95:564:50
1810.95:574:49
1910.85:584:47
2010.85:594:46
2110.76:004:44
2210.76:014:43
2310.76:024:42
2410.66:034:40
2510.66:054:39
2610.56:064:38
2710.56:074:37
2810.56:084:35
2910.46:094:34
3010.46:104:33
3110.36:114:32

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 1.69 kWh/m² to a high of 5.31 kWh/m² in May across the year — October's 2.95 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.3Moderate
23.3Moderate
33.3Moderate
43.2Moderate
53.2Moderate
63.2Moderate
73.2Moderate
83.1Moderate
93.1Moderate
103.1Moderate
113.1Moderate
123.1Moderate
133.0Moderate
143.0Moderate
153.0Moderate
163.0Moderate
173.0Moderate
182.9Moderate
192.9Moderate
202.9Moderate
212.8Moderate
222.8Moderate
232.8Moderate
242.7Moderate
252.7Moderate
262.7Moderate
272.6Moderate
282.6Moderate
292.6Moderate
302.5Moderate
312.5Moderate
Planning a trip in October

Hazard calendar for Ōmagari

In seasonPeak

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

Ōmagari 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 Ōmagari?

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

5.0
Sightseeing
6th-best month of the year
1.5
Beach & pool
6th-best month of the year

October is a reasonable time to visit Ōmagari for sightseeing.

What to pack for Ōmagari in October

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

In October, Ōmagari sees daytime highs around 17°C and nights near 9°C. Pack rain gear. About 14 days see rain.

rain gear

Sea temperature near Ōmagari 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 53 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 27 to Oct 24 — about 3.9 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan11Bracing
Feb10Bracing
Mar9Bracing
Apr10Bracing
May14Bracing
Jun19Cool
Jul22Refreshing
Aug26Warm
Sep25Warm
Oct21Refreshing
Nov18Cool
Dec14Bracing

UV index in Ōmagari 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 Ōmagari peaks around August 18 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighVery highHighModerateLowAug 18UV 8Jan 11UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar3Moderate
Apr6High
May8Very high
Jun8Very high
Jul6High
Aug9Very high
Sep7High
Oct5Moderate
Nov2Moderate
Dec2Low

Air quality in Ōmagari 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 Ōmagari 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).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1721 µg/m³Dec 149 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb14Moderate
Mar19Moderate
Apr21Moderate
May20Moderate
Jun15Moderate
Jul13Moderate
Aug11Good
Sep10Good
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Ōmagari?

Ōmagari sits at 39.5°N, 140.5°E, 28 m above sea level, in Japan. The nearest listed city is Daisen, 1.0 km away.

Topography around Ōmagari

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

Within 3 km, the terrain around Ōmagari has only modest variations in elevation — a maximum elevation change of 51 m around an average of 25 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 869 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,211 m.

The land around Ōmagari is covered by cropland (53%) and artificial surfaces (30%) within 3 km, trees (51%) and cropland (38%) within 16 km, and trees (69%) within 80 km.

3 km
51 m
16 km
869 m
80 km
2,211 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: Daisen 1.0 km · Rokugō 7.0 km · Yokote 16 km · Yuzawa 32 km · Semboku 37 km · Yurihonjō 37 km · Akita 43 km · Shizukuishi 51 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 Ōmagari (39.45°, 140.4833°, elevation 28 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).