Oga weather in October

In October, Oga sees average daytime highs of 18°C and overnight lows near 15°C, with 166 mm of rain across 15.3 wet days and about 10.9 hours of daylight. It is the 5th-warmest and 7th-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 27% 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 Oga's 3rd-clearest and 6th-windiest month. For the whole year in context, see Oga's year-round climate.

Daytime high
18°
5th warmest
Overnight low
15°
8th coldest
Rainfall
166 mm
15.3 wet days
Daylight
10 h 54 min
5:58 AM – 4:53 PM
Cloud cover
61%
3rd clearest
Wind
23 km/h
6th windiest
Solar energy
3.14 kWh/m²
Travel score
5.0
out of 10

Oga is city in Akita Prefecture, Japan.

Density
104/km²
people per km²
Founded
2005

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 Oga reaches about 18°C in the afternoon and slips back to 15°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 20°C. Set against its neighbours, October runs about 5°C cooler than September and about 6°C warmer than November.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
12118
22018
32018
42017
52017
62017
72017
81917
91916
101916
111916
121916
131816
141815
151815
161815
171815
181714
191714
201714
211714
221714
231613
241613
251613
261613
271613
281613
291512
301512
311512

How October really feels in Oga

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.

Oga weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 16925.417.99.50.0
Feb / 11920.514.210.40.0
Mar / 10817.26.711.70.5
Apr10° / 9812.70.3132.1
May14° / 12°11712.6014.24.1
Jun19° / 17°12011014.85.9
Jul23° / 21°19014.4014.56.0
Aug26° / 23°17814.1013.66.2
Sep23° / 21°18014012.36.0
Oct18° / 15°16615.3010.95.0
Nov12° / 17419.61.29.82.5
Dec / 20324.810.29.20.6

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% 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 52%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14456
24456
34456
44456
54456
64555
74654
84654
94654
104654
114852
124852
134852
144852
154951
164951
174951
184951
195050
205050
214951
224951
234951
244951
254951
265050
274951
284951
294951
304951
314951

Chance of precipitation in October

Any precipitation

Oga gets around 166 mm of rain over 15.3 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 49% and peaks near 54% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
147
248
348
448
548
648
749
849
949
1049
1149
1249
1349
1448
1548
1648
1748
1848
1948
2048
2149
2249
2349
2450
2550
2651
2752
2852
2953
3054
3154

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 71% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13934225
24134214
34333204
44632193
54832183
65131162
75330152
85628142
95827132
106126121
116325111
126623101
13682291
14702181
15732070
16751870
17771760
18791650
19811540
20821440
21841330
22851320
23861220
24881110
25891010
2690910
2790910
2891810
2992710
3093700
3194600

Wind in October

Winds average 23 km/h in October.

Across October, daily wind ranges from about 22 km/h on the calmest days to 25 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
122breezy
222breezy
322breezy
422breezy
522breezy
622breezy
722breezy
822breezy
922breezy
1022breezy
1122breezy
1222breezy
1322breezy
1422breezy
1522breezy
1622breezy
1723breezy
1823breezy
1923breezy
2023breezy
2123breezy
2223breezy
2323breezy
2423breezy
2524breezy
2624breezy
2724breezy
2824breezy
2924breezy
3025breezy
3125breezy

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 5:42 AM to 6:15 AM, and sunset from 5:17 PM to 4:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.65:425:17
211.55:435:15
311.55:445:14
411.55:455:12
511.45:465:11
611.45:475:09
711.35:485:07
811.35:495:06
911.25:505:04
1011.25:515:03
1111.15:525:01
1211.15:534:59
1311.15:554:58
1411.05:564:56
1511.05:574:55
1610.95:584:53
1710.95:594:52
1810.86:004:51
1910.86:014:49
2010.86:024:48
2110.76:034:46
2210.76:044:45
2310.66:064:44
2410.66:074:42
2510.66:084:41
2610.56:094:40
2710.56:104:38
2810.46:114:37
2910.46:124:36
3010.46:134:35
3110.36:154:34

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.14 kWh/m².

For context, solar energy here swings from a low near 1.57 kWh/m² to a high of 5.86 kWh/m² in June across the year — October's 3.14 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.6Moderate
23.6Moderate
33.5Moderate
43.5Moderate
53.5Moderate
63.4Moderate
73.4Moderate
83.4Moderate
93.4Moderate
103.3Moderate
113.3Moderate
123.3Moderate
133.3Moderate
143.2Moderate
153.2Moderate
163.2Moderate
173.1Moderate
183.1Moderate
193.1Moderate
203.0Moderate
213.0Moderate
223.0Moderate
232.9Moderate
242.9Moderate
252.8Moderate
262.8Moderate
272.8Moderate
282.7Moderate
292.7Moderate
302.6Moderate
312.6Moderate
Planning a trip in October

Hazard calendar for Oga

In seasonPeak

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

Oga 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 Oga?

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

5.0
Sightseeing
5th-best month of the year
1.7
Beach & pool
5th-best month of the year

October is a reasonable time to visit Oga for sightseeing.

What to pack for Oga in October

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

In October, Oga sees daytime highs around 18°C and nights near 15°C. Pack rain gear. Worth having: a windbreaker. About 15 days see rain.

rain geara windbreaker

Sea temperature near Oga 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 offshore is warmest in August at about 25°C and coldest in March near 9°C.

It's comfortable for a long swim from Jun 30 to Oct 23 — about 3.8 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan11Bracing
Feb9Bracing
Mar9Bracing
Apr10Bracing
May14Bracing
Jun18Cool
Jul22Refreshing
Aug25Warm
Sep24Warm
Oct21Refreshing
Nov17Cool
Dec14Bracing

UV index in Oga 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 Oga peaks around August 19 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighVery highHighModerateLowAug 19UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar3Moderate
Apr6High
May8Very high
Jun7Very high
Jul5Moderate
Aug9Very high
Sep7High
Oct4Moderate
Nov2Moderate
Dec1Low

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

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1421 µg/m³Sep 169 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb15Moderate
Mar20Moderate
Apr21Moderate
May18Moderate
Jun13Moderate
Jul11Good
Aug10Good
Sep9Good
Oct10Good
Nov10Good
Dec10Good
Location & terrain

Where is Oga?

Oga sits at 39.9°N, 139.8°E, 6 m above sea level, in Japan. The nearest listed city is Tennō, 11 km away.

Topography around Oga

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

Within 3 km, the terrain around Oga has only modest variations in elevation — a maximum elevation change of 112 m around an average of 15 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 713 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,449 m.

The land around Oga is covered by water (61%) and trees (27%) within 3 km, water (65%) and trees (22%) within 16 km, and trees (46%) and water (45%) within 80 km.

3 km
112 m
16 km
713 m
80 km
1,449 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: Tennō 11 km · Katagami 13 km · Akita 29 km · Moritake 32 km · Noshiro 40 km · Yurihonjō 56 km · Takanosu 59 km · Kita-Akita 59 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 Oga (39.871°, 139.8493°, elevation 6 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).