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Nagaoka weather & best time to visit

City break

Nagaoka at a glance

Best time
Apr – Jun, Sep – Oct
Warmest month
Aug · 32°
Sunshine a year
1,830 h
Rain a year
1,734 mm
Climate
Temperate
Time zone
UTC+9
Elevation
23 m

Climate in Nagaoka

Nagaoka has a temperate climate with warm summers and cool winters. August is the warmest month with average highs of 32 °C, while January is the coolest at 6 °C. With around 1,830 hours of sunshine a year, Nagaoka is moderately sunny; May is the sunniest month with 7.0 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Nagaoka

The best time to visit Nagaoka is from April to June and from September to October. In September and October, though, the typhoon season is at its peak: check the forecast before you go. The wettest month is July with 197 mm of precipitation.

Nagaoka through the seasons

How the weather changes over the seasons, with averages for each.

Nagaoka in spring

Mar – May

54

Fair

  • 11–23 °C by day
  • 6.1 h of sun a day
  • 45 rainy days in all

Nagaoka in summer

Jun – Aug

51

Fair

  • 27–32 °C by day
  • 6.3 h of sun a day
  • 44 rainy days in all

Nagaoka in autumn

Sep – Nov

54

Fair

  • 15–28 °C by day
  • 4.6 h of sun a day
  • 48 rainy days in all

Nagaoka in winter

Dec – Feb

2

Poor

  • 6–9 °C by day
  • 3.0 h of sun a day
  • 70 rainy days in all

Which month for what?

Beach & swimming

No sea nearby

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

No month

15–28 °C and not too much rain

Rainy months

All year

Rainy season or more than 12 rainy days

Snow

Dec – Mar

Snow on 2 or more days

Find your perfect month

Tell us what you like and we rate every month in Nagaoka for you.

Sunshine
Little rain

Your best months: May

Based on the climate averages; tap a month to see its details.

Your holiday weather, at a glance

Weather in October

Weather in October

62

Holiday weather in October

Good

Best time to visit: April – June, September – October

October is the peak of the typhoon season Hurricane season

Keep in mindFrequent rainStorm season

A typical day in October

  1. Morning, 08:00: about 17°
  2. Midday, 13:00: about 21°
  3. Afternoon, 16:00: about 20°
  4. Evening, 20:00: about 16°
  5. Night, 23:00: about 15°

05:5117:09

Cool evenings: pack a jumper or a jacket.

Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.

Light for photos in October

Golden hour
Morning 05:35–06:27 · evening 16:34–17:25
Blue hour
Morning 05:25–05:35 · evening 17:25–17:35

Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.

October in Nagaoka compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs fall from about 24° at the start of the month to 18° at the end. The days get 1.1 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high24°18°
Night-time low16°10°
Daylight11.8 h10.7 h

What is the weather like in Nagaoka in October?

In October, Nagaoka is warm: daytime highs average 21 °C, and nights cool down to about 13 °C. Expect around 4.8 hours of sunshine a day. It rains often – on about 15 days, adding up to 143 mm. All in all, October is a good month for a holiday in Nagaoka.

More details for October

Daylight
11 h 18 min05:51 – 17:09
UV index
5 · moderateclear sky, noon (estimate)All months
Muggy days
1 daydew point 18 °C or moreAll months
Wind
14 km/haverage daily peakAll months
Cloud cover
64 %on averageAll months
Hot days
0 days30 °C or moreAll months
Snow days
0 days1 cm or more of fresh snowAll months
Time zone
UTC+9offset from UTC

How the score comes together

  • Temperatureweight 50 %100 %
  • Sunshineweight 20 %30 %
  • Few rainy daysweight 30 %21 %

Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.

What to pack in October

  • Sunscreen
  • A jumper for the evenings
  • Rain jacket or umbrella

Compare two months in Nagaoka

Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.

vs

May has the better holiday weather in Nagaoka: score 76 against 62. In May, days are 2 °C warmer than in October. May has 3 fewer rainy days. The sun shines 2 hours longer a day in May.

October vs May, Nagaoka
MonthOctoberMay
Holiday weather score6276better
Daytime high21°23°
Night-time low13°13°
Sunshine4.8 h7.0 hbetter
Rainy days1512better
Rainfall143 mm100 mmbetter
Muggy days10better

Based on the climate averages 1996–2025.

Nagaoka month by month

The typical weather for every month at a glance.

0January6° · 2.8 h

In January, Nagaoka is cold: daytime highs average 6 °C, and nights cool down to about 0 °C. The sun is scarce, with only about 2.8 hours a day. It rains often – on about 25 days, adding up to 182 mm. Snow falls on about 17 days. All in all, January is not an ideal month for a holiday in Nagaoka.

Nagaoka in January
2February7° · 3.5 h

In February, Nagaoka is cold: daytime highs average 7 °C, and nights cool down to about 0 °C. The sun is scarce, with only about 3.5 hours a day. It rains often – on about 21 days, adding up to 126 mm. Snow falls on about 12 days. All in all, February is not an ideal month for a holiday in Nagaoka.

Nagaoka in February
22March11° · 4.9 h

In March, Nagaoka is cool: daytime highs average 11 °C, and nights cool down to about 2 °C. Expect around 4.9 hours of sunshine a day. It rains often – on about 19 days, adding up to 126 mm. Snow falls on about 6 days. All in all, March is not an ideal month for a holiday in Nagaoka.

Nagaoka in March
65April17° · 6.3 h

In April, Nagaoka is mild: daytime highs average 17 °C, and nights cool down to about 7 °C. Expect around 6.3 hours of sunshine a day. It rains often – on about 14 days, adding up to 98 mm. All in all, April is a good month for a holiday in Nagaoka.

Nagaoka in April
76May23° · 7.0 h

In May, Nagaoka is warm: daytime highs average 23 °C, and nights cool down to about 13 °C. The sun shines for around 7.0 hours a day. Rain is frequent, with about 12 rainy days and 100 mm in total. All in all, May is a good month for a holiday in Nagaoka.

Nagaoka in May
72June27° · 6.2 h

In June, Nagaoka is warm: daytime highs average 27 °C, and nights cool down to about 18 °C. Expect around 6.2 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 116 mm in total. All in all, June is a good month for a holiday in Nagaoka.

Nagaoka in June
44July30° · 5.7 h

In July, Nagaoka is hot: daytime highs average 30 °C, and even at night it stays warm at around 22 °C. Expect around 5.7 hours of sunshine a day. It rains often – on about 16 days, adding up to 197 mm. On about 15 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is a so-so month for a holiday in Nagaoka.

Nagaoka in July
37August32° · 6.9 h

In August, Nagaoka is hot: daytime highs average 32 °C, and even at night it stays warm at around 23 °C. The sun shines for around 6.9 hours a day. It rains often – on about 15 days, adding up to 154 mm. On about 23 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is not an ideal month for a holiday in Nagaoka.

Nagaoka in August
63September28° · 5.4 h

In September, Nagaoka is hot: daytime highs average 28 °C, and nights cool down to about 19 °C. Expect around 5.4 hours of sunshine a day. It rains often – on about 14 days, adding up to 148 mm. On about 7 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is a good month for a holiday in Nagaoka.

Nagaoka in September
62October21° · 4.8 h

In October, Nagaoka is warm: daytime highs average 21 °C, and nights cool down to about 13 °C. Expect around 4.8 hours of sunshine a day. It rains often – on about 15 days, adding up to 143 mm. All in all, October is a good month for a holiday in Nagaoka.

Nagaoka in October
36November15° · 3.7 h

In November, Nagaoka is cool: daytime highs average 15 °C, and nights cool down to about 7 °C. The sun is scarce, with only about 3.7 hours a day. It rains often – on about 19 days, adding up to 150 mm. All in all, November is not an ideal month for a holiday in Nagaoka.

Nagaoka in November
4December9° · 2.7 h

In December, Nagaoka is cold: daytime highs average 9 °C, and nights cool down to about 2 °C. The sun is scarce, with only about 2.7 hours a day. It rains often – on about 24 days, adding up to 194 mm. Snow falls on about 9 days. All in all, December is not an ideal month for a holiday in Nagaoka.

Nagaoka in December

Climate in detail

Year & climate table

Climate through the year

Long-term monthly averages. Tap a month to see its details.

Best time to visit

Nights and sleep in Nagaoka

How warm the nights get in each month, from the mean night-time low. Tap a month for details.

  • Cold 0–8°
  • Cool 8–15°
  • Pleasant 15–20°
  • Warm 20–24°
  • muggy month (15+ muggy days)

CoolOctober: nights around 13°. A duvet at night and a jumper for the evening. Muggy on about 1 day (dew point 18 °C or more).

The coolest nights are in February (0°), the warmest in August (23°). Tropical nights of 20 °C and more are the rule from July to August; then air conditioning or a fan helps you sleep. Nights are pleasant for sleeping (15 to 20 °C) in June and in September. Nights fall below 8 °C on average from November to April, so the room should be heated. It is muggy (dew point 18 °C or more) on about 86 days a year, mostly from July to September.

Temperatures through the year

Average daytime high, night-time low and sea temperature per month.

OctoberDay 21°Night 13°
DayNight
MonthScoreDayNightSunRain daysRain mm
JanuaryJan06°0°2.8 h25182
FebruaryFeb27°0°3.5 h21126
MarchMar2211°2°4.9 h19126
AprilApr6517°7°6.3 h1498
MayMay7623°13°7.0 h12100
JuneJun7227°18°6.2 h13116
JulyJul4430°22°5.7 h16197
AugustAug3732°23°6.9 h15154
SeptemberSep6328°19°5.4 h14148
OctoberOct6221°13°4.8 h15143
NovemberNov3615°7°3.7 h19150
DecemberDec49°2°2.7 h24194

Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences

37.45° N, 138.85° E · 23 m · Asia/Tokyo

Sunshine
Sunshine

Sunshine hours in Nagaoka

Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.

Per year
1,830 hours
Sunniest month
May · 7.0 h a day
Least sunshine
Dec · 2.7 h a day
OctoberSunshine 4.8 hDaylight 11.3 hShare of daylight 42 %
SunshineDaylight

In October, the sun shines for about 4.8 of 11.3 hours of daylight in Nagaoka, 42 % of the daylight hours.

Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.

Rain
Rain

Rain in Nagaoka: rainy days and rainfall

A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.

Per year
1,734 mm on 207 days
Wettest month
Jul · 197 mm
Driest month
Apr · 98 mm
OctoberRainy days 15Rainfall 143 mm

In October, Nagaoka has about 15 rainy days with 143 mm of rain in total.

UV index
Sun protection

UV index in Nagaoka

How strong the sun is at noon, month by month, and how quickly unprotected skin burns.

Clear-sky UV in October
5 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.

The sun is strongest in June (UV 10).

Minutes until sunburn in October

Very fair skin
about 30 min
Fair skin
about 35 min
Light brown skin
about 50 min
Olive skin
about 65 min

Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.

Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.

Wind & clouds
Wind & clouds

Wind and clouds in Nagaoka

How breezy and how cloudy Nagaoka is through the year. Tap a month to select it on the whole page.

Wind

Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.

Year average
15 km/h · gentle breeze
Windiest month
Jan · 18 km/h
Calmest month
Aug · 12 km/h
OctoberWind 14 km/hBeaufort 3

In October, the wind in Nagaoka typically peaks at 14 km/h during the day: Beaufort 3, gentle breeze.

Clouds

Average share of the sky covered by cloud, day and night.

Year average
69 % · mostly cloudy
Clearest month
Apr · 62 %
Cloudiest month
Jan · 77 %
OctoberCloud cover 64 %Sunshine 4.8 h

In October, cloud covers on average 64 % of the sky over Nagaoka: variable cloud, with about 4.8 hours of sunshine a day.

Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.

Heat & humidity
Heat & humidity

Heat and humidity in Nagaoka

How often the day gets hot in Nagaoka (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.

Hot days a year
49 days
Hottest month
Aug · 32 °C
Hot months
Jul – Aug

Heat calendar

  • pleasant
  • some hot or muggy days
  • often muggy
  • often hot
  • hot and muggy
OctoberHot days (30 °C+) 0Daytime high 21 °C

In October, Nagaoka has about 0 hot days, with an average daytime high of 21 °C: pleasant. Heat plays no part this month.

Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year

Snow
Snow

Snow in Nagaoka

When Nagaoka is likely to be white: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.

Snow days a year
45 days
Fresh snow a year
171 cm
Snowy months
Dec – Feb

Snow calendar

  • hardly any
  • possible
  • likely
  • very likely
OctoberDays with fresh snow 0Fresh snow 0 cmChance of snow 0 / 100

In October, it hardly ever snows in Nagaoka.

Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.

Planning a trip to Nagaoka

Weather for your travel dates

Pick your arrival and length of stay, and we sum up the weather to expect.

Nagaoka in the school holidays

How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.

Nagaoka has its best school-holiday weather during May half-term (score 75) and its weakest during the Christmas holidays (score 2).

  • Easter holidays

    Mar – Apr

    52

    Fair

    • 15 °C by day
    • 5.9 h of sun a day
    • 16 rainy days a month

    Keep in mind: Frequent rain, Snow

  • May half-term

    May – Jun

    75

    GoodBest holidays

    • 23 °C by day
    • 6.8 h of sun a day
    • 12 rainy days a month

    Keep in mind: Frequent rain

  • Summer holidays

    Jul – Aug

    39

    Poor

    • 31 °C by day
    • 6.5 h of sun a day
    • 16 rainy days a month

    Keep in mind: Frequent rain, Storm season

  • October half-term

    Oct

    62

    Good

    • 21 °C by day
    • 4.8 h of sun a day
    • 15 rainy days a month

    Keep in mind: Frequent rain, Storm season

  • Christmas holidays

    Dec – Jan

    2

    Poor

    • 7 °C by day
    • 2.8 h of sun a day
    • 25 rainy days a month

    Keep in mind: Frequent rain, Snow

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 11 h 45 min
Distance
9,360 km
Time zone
UTC+9
Jet lag
About 8 days (8 h east)

Rule of thumb for flying east: for a few days before, go to bed and get up a little earlier, and get plenty of morning light at your destination.

Most routes need a change of planes, which adds time.

Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.

Good to know: Japan

Currency
Japanese Yen (JPY)
Language
Japanese
Sockets
Type A, B · 100 V
Traffic
Drives on the left
Dialling code
+81

UK plugs need a travel adapter

Only 100 V: chargers marked 100–240 V work, other devices need a voltage converter.

Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.

Storm season

Nagaoka lies in an area that Pacific typhoons can reach. The typhoon season runs from June to November, with most storms from August to October. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.

  1. January
  2. February
  3. March
  4. April
  5. May
  6. June: Season
  7. July: Season
  8. August: Peak
  9. September: Peak
  10. October: Peak
  11. November: Season
  12. December

Official season dates of the regional warning centres (NOAA, JMA, IMD, Météo-France, BoM, Fiji Meteorological Service); not a forecast.

Compare & alternatives

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Nagaoka compared

Put Nagaoka side by side with another destination.

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Nagaoka vs Niigata

In October the holiday weather in Nagaoka and Niigata is about equally good (score 62 vs 62). During the day it is about as warm in Niigata as in Nagaoka.

Nagaoka vs Niigata, in October
in OctoberNagaokaNiigata
Holiday weather score6262
Daytime high21°21°
Seano sea nearby22°
Sunshine5 h5 h
Rainy days1515
Best timeApr – Jun, Sep – OctApr – Jun, Sep – Oct

Through the year

OctoberNagaoka 21°Niigata 21°
NagaokaNiigata
Go to Niigata
Best places in the country
Ranking

Japan in October: the best places

In October, Nagaoka ranks 22 among the 31 nearest destinations in this country.

  1. Fukushima20°70
  2. 2Sendai20°70
  3. 3Maebashi22°68
  4. 4Karuizawa18°68
  5. 5Takasaki22°68
  6. 6Sano22°68
  7. 7Aizuwakamatsu20°67
  8. 8Kawagoe22°67
  9. 22NagaokaThis page21°62
All destinations: Japan
Places nearby

Near Nagaoka

Other destinations close by.

Places with a similar climate

Places with a climate like Nagaoka

Destinations whose weather through the year is closest to Nagaoka's – good alternatives.

  1. 83 % similar66FukuiJapan21°Best time: Apr – Jun, Sep – Oct
  2. 70 % similar72IzumoJapan22°Best time: Apr – Jun, Sep – Oct
  3. 69 % similar58TakayamaJapan20°Best time: May
  4. 66 % similar64MatsumotoJapan19°Best time: Apr – May, Sep – Oct

Frequently asked questions about Nagaoka

When is the best time to visit Nagaoka?

The best time to visit Nagaoka is from April to June and from September to October. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.

What is the warmest month in Nagaoka?

August is the warmest month, with average highs of 32 °C and nights around 23 °C. January is the coolest month at 6 °C.

When does it rain most in Nagaoka?

The wettest month is July with 197 mm of precipitation. The driest month is April with 98 mm.

How many hours of sunshine does Nagaoka get?

Nagaoka gets around 1,830 hours of sunshine a year. The sunniest month is May with 7.0 hours a day; in December there are 2.7 hours a day.

What time zone is Nagaoka in?

Nagaoka is on UTC+9 all year.

How long is the flight from London to Nagaoka?

A nonstop flight from London to Nagaoka takes about 11 h 45 min, for a straight-line distance of about 9,360 km. Most routes need a change of planes, which adds time.

When is typhoon season in Nagaoka?

Nagaoka lies in an area that Pacific typhoons can reach. The typhoon season runs from June to November, with most storms from August to October. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.

Which school holidays are best for Nagaoka?

Nagaoka has its best school-holiday weather during May half-term (score 75) and its weakest during the Christmas holidays (score 2). Holiday ratings (0–100): Easter holidays 52, May half-term 75, summer holidays 39, October half-term 62, Christmas holidays 2.