Nanaku weather in October

In October, Nanaku sees average daytime highs of 17°C and overnight lows near 8°C, with 111 mm of rain across 10.6 wet days and about 10.9 hours of daylight. It is the 6th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 20°C in the first days to 14°C by the end. The sky is clear or mostly clear about 28% 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 Nanaku's 2nd-clearest and 8th-windiest month. For the whole year in context, see Nanaku's year-round climate.

Daytime high
17°
6th warmest
Overnight low
7th coldest
Rainfall
111 mm
10.6 wet days
Daylight
10 h 54 min
5:53 AM – 4:47 PM
Cloud cover
60%
2nd clearest
Wind
10 km/h
8th windiest
Solar energy
3.03 kWh/m²
Travel score
5.3
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 14°C by the end.

A typical October day in Nanaku reaches about 17°C in the afternoon and slips back to 8°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 13°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)
12011
22011
32011
41911
51910
61910
71910
81910
91810
10189
11189
12189
13189
14178
15178
16178
17178
18178
19167
20167
21167
22167
23167
24156
25156
26156
27156
28156
29146
30145
31145

How October really feels in Nanaku

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.

Nanaku weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -7°518.699.40.0
Feb / -6°548.89.110.40.0
Mar / -3°8212.58.411.70.7
Apr13° / 8613.32.4133.6
May19° / 10°9712.50.114.25.6
Jun22° / 14°11212.4014.85.9
Jul25° / 18°15515.2014.65.8
Aug27° / 19°15915.1013.65.6
Sep23° / 15°14413.3012.36.0
Oct17° / 11110.6010.95.3
Nov10° / 6511.22.29.82.3
Dec / -3°60107.39.20.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 23% of October, with mostly cloudy or overcast conditions the remaining 49%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14258
24258
34258
44357
54357
64555
74555
84654
94753
104852
114852
124951
135050
145149
155248
165248
175347
185347
195446
205446
215446
225545
235644
245644
255644
265644
275743
285743
295842
305842
315941

Chance of precipitation in October

Any precipitation

Nanaku gets around 111 mm of rain over 10.6 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 34% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
238
338
438
537
637
737
836
935
1035
1134
1233
1332
1432
1532
1631
1731
1831
1931
2031
2131
2231
2332
2432
2533
2633
2734
2834
2934
3034
3134

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 88% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1662671
2682561
3692461
4712351
5722251
6762040
7771940
8781840
9811630
10831430
11841330
12861130
13881020
1489920
1590820
1691720
1793610
1894510
1995410
2095410
2196310
2296310
2398200
2498200
2598200
2698200
2798200
2898200
2999100
3099100
3199100

Wind in October

Winds average 10 km/h in October.

Across October, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

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 5:37 AM to 6:10 AM, and sunset from 5:11 PM to 4:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.65:375:11
211.55:385:10
311.55:395:08
411.45:405:06
511.45:415:05
611.45:425:03
711.35:435:01
811.35:445:00
911.25:454:58
1011.25:464:56
1111.15:474:55
1211.15:484:53
1311.05:494:52
1411.05:504:50
1511.05:524:49
1610.95:534:47
1710.95:544:46
1810.85:554:44
1910.85:564:43
2010.75:574:41
2110.75:584:40
2210.75:594:39
2310.66:014:37
2410.66:024:36
2510.56:034:34
2610.56:044:33
2710.46:054:32
2810.46:064:31
2910.46:084:29
3010.36:094:28
3110.36:104:27

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.03 kWh/m².

For context, solar energy here swings from a low near 1.85 kWh/m² to a high of 5.51 kWh/m² in May across the year — October's 3.03 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.4Moderate
23.4Moderate
33.3Moderate
43.3Moderate
53.3Moderate
63.3Moderate
73.2Moderate
83.2Moderate
93.2Moderate
103.2Moderate
113.1Moderate
123.1Moderate
133.1Moderate
143.1Moderate
153.1Moderate
163.1Moderate
173.0Moderate
183.0Moderate
193.0Moderate
203.0Moderate
212.9Moderate
222.9Moderate
232.9Moderate
242.8Moderate
252.8Moderate
262.8Moderate
272.8Moderate
282.7Moderate
292.7Moderate
302.7Moderate
312.6Moderate
Planning a trip in October

Hazard calendar for Nanaku

In seasonPeak

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

Nanaku 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 Nanaku?

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

5.3
Sightseeing
6th-best month of the year
1.4
Beach & pool
6th-best month of the year

October is a reasonable time to visit Nanaku for sightseeing.

What to pack for Nanaku in October

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

In October, Nanaku sees daytime highs around 17°C and nights near 8°C. Worth packing: a warm layer and rain gear. About 11 days see rain.

a warm layerrain gear

Sea temperature near Nanaku in October

The nearest coast averages about 18°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 39 km away) is warmest in August at about 21°C and coldest in March near 7°C.

It's comfortable for a long swim from Aug 8 to Sep 26 — about 1.6 months when the water holds above 20°C.

5°10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan10Bracing
Feb8Bracing
Mar7Bracing
Apr8Bracing
May10Bracing
Jun14Bracing
Jul18Cool
Aug21Refreshing
Sep21Refreshing
Oct18Cool
Nov15Cool
Dec12Bracing

UV index in Nanaku 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 Nanaku 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
Feb3Moderate
Mar3Moderate
Apr6High
May8Very high
Jun7Very high
Jul5Moderate
Aug9Very high
Sep7High
Oct5Moderate
Nov2Moderate
Dec1Low

Air quality in Nanaku 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 Nanaku is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1421 µg/m³Dec 1510 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar20Moderate
Apr21Moderate
May19Moderate
Jun14Moderate
Jul12Moderate
Aug12Good
Sep12Good
Oct12Good
Nov10Good
Dec10Good
Location & terrain

Where is Nanaku?

Nanaku sits at 40.4°N, 141.3°E, 36 m above sea level, in Japan. The nearest listed city is Ninohe, 13 km away.

Topography around Nanaku

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

Within 3 km, the terrain around Nanaku has significant variations in elevation — a maximum elevation change of 528 m around an average of 123 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 770 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,118 m.

The land around Nanaku is covered by trees (83%) within 3 km, trees (87%) within 16 km, and trees (65%) and water (25%) within 80 km.

3 km
528 m
16 km
770 m
80 km
2,118 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: Ninohe 13 km · Hakurōmachi 14 km · Hachinohe 22 km · Towada 25 km · Hitokawame 30 km · Ōno 33 km · Misawa 33 km · Toyota 39 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 Nanaku (40.4009°, 141.2727°, elevation 36 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).