Kyushu Weather Guide

Nagasaki Weather & What to Wear

Nagasaki, Mt. Inasa, Glover Garden, Meganebashi Bridge

A hilly port city full of sights, including the night view from Mt. Inasa, Glover Garden, Meganebashi Bridge and Peace Park. Facing the sea, it's relatively mild even in winter, but the rainy season brings very heavy rain, with 335.9 mm in June.

January low
4.0℃
August high
31.9℃
Max snow depth
2cm
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Forecast

Forecast: Today & the Next 7 Days

JMA forecast issued Oct 22, 11 AM

Every 3 Hours: Today & Tomorrow

  1. Today
    3 PM
    Sunny
    23°
    ☂ 0%
    3–5m/s
  2. 6 PM
    Sunny
    20°
    ☂ 0%
    3–5m/s
  3. 9 PM
    Sunny
    19°
    ☂ 0%
    3–5m/s
  4. Tomorrow
    12 AM
    Sunny
    18°
    ☂ 0%
    0–2m/s
  5. 3 AM
    Sunny
    18°
    ☂ 0%
    0–2m/s
  6. 6 AM
    Cloudy
    18°
    ☂ 10%
    0–2m/s
  7. 9 AM
    Cloudy
    20°
    ☂ 10%
    0–2m/s
  8. 12 PM
    Cloudy
    21°
    ☂ 70%
    3–5m/s
  9. 3 PM
    Rain
    21°
    ☂ 70%
    3–5m/s
  10. 6 PM
    Rain
    20°
    ☂ 70%
    3–5m/s
  11. 9 PM
    Rain
    20°
    ☂ 70%
    3–5m/s

Weather and wind are for the wider area; temperature is for the main forecast point. Chance of rain is for the 6-hour period.

  1. Today
    10/22(Thu)
    Sunny
    24°/16°
    Observed: 16°
    ☂ 0%
  2. Tomorrow
    10/23(Fri)
    Cloudy, then rain
    22°/17°
    ☂ 70%
  3.  
    10/24(Sat)
    Rain
    27°/20°
    ☂ 80%
  4.  
    10/25(Sun)
    Cloudy, rain at times
    29°/23°
    ☂ 70%
    Reliability B
  5.  
    10/26(Mon)
    Cloudy, rain at times
    27°/22°
    ☂ 70%
    Reliability B
  6.  
    10/27(Tue)
    Cloudy, brief rain
    24°/17°
    ☂ 50%
    Reliability C
  7.  
    10/28(Wed)
    Sunny, cloudy at times
    22°/15°
    ☂ 20%
    Reliability A
  • ☂ Chance of rain
  • From day 3, the weekly forecast covers a wider prefecture-level area.
  • Reliability of the weekly forecast (A: high, B: fairly high, C: fairly low)
  • "Observed" is the temperature measured so far today by JMA weather stations (AMeDAS), not a forecast.
  • Source: Japan Meteorological Agency (weather forecast)
Best Season

Best Time to Visit Nagasaki

For festivals

The two big events are the Nagasaki Lantern Festival, when about 15,000 lanterns light up the city around the Lunar New Year, and Nagasaki Kunchi on October 7–9.

For comfortable weather

April and October bring highs of around 20–24°C, just right for exploring a city full of hills and slopes.

Climate

Nagasaki Temperature & Snow Through the Year

Monthly high / low temperature (°C)

HighLow
05101520253035JanFebMarAprMayJunJulAugSepOctNovDec31.9℃4.0℃Jan High 10.7℃ / Low 4.0℃Feb High 12.0℃ / Low 4.5℃Mar High 15.3℃ / Low 7.5℃Apr High 19.9℃ / Low 11.7℃May High 23.9℃ / Low 16.1℃Jun High 26.5℃ / Low 20.2℃Jul High 30.3℃ / Low 24.5℃Aug High 31.9℃ / Low 25.3℃Sep High 28.9℃ / Low 21.9℃Oct High 24.1℃ / Low 16.5℃Nov High 18.5℃ / Low 11.0℃Dec High 13.1℃ / Low 6.0℃

Monthly max snow depth (cm)

010Jan 2cmJanFebMarAprMayJunJulAugSepOctNovDec 1cmDec2cm
Month by Month

Month-by-Month Weather & What to Wear

MonthHighLowPrecip.Max snow depthWhat to wear
Jan10.7℃4.0℃63.1mm2cmWarm jacketLight down or winter coat, sweater
Feb12.0℃4.5℃84mm—Warm jacketLight down or winter coat, sweater
Mar15.3℃7.5℃123.2mm—Long sleeves + jacketLong sleeves with a light jacket or hoodie
Apr19.9℃11.7℃153mm—Long sleeves + jacketLong sleeves with a light jacket or hoodie
May23.9℃16.1℃160.7mm—T-shirt + layerT-shirt, plus light long sleeves for mornings and evenings
Jun26.5℃20.2℃335.9mm—T-shirtT-shirt, with a light layer for evenings and air conditioning
Jul30.3℃24.5℃292.7mm—T-shirtT-shirt, with a light layer for evenings and air conditioning
Aug31.9℃25.3℃217.9mm—T-shirtT-shirt, with a light layer for evenings and air conditioning
Sep28.9℃21.9℃186.6mm—T-shirtT-shirt, with a light layer for evenings and air conditioning
Oct24.1℃16.5℃102.1mm—T-shirtT-shirt, with a light layer for evenings and air conditioning
Nov18.5℃11.0℃100.7mm—Long sleeves + jacketLong sleeves with a light jacket or hoodie
Dec13.1℃6.0℃74.8mm1cmWarm jacketLight down or winter coat, sweater

Clothing tips are based on the normal high temperature and snow depth. Bring an extra layer for mornings and evenings.

Where to stay in NagasakiNagasaki Station Area・Shinchi Chinatown & Dejima・Hamanomachi & Shianbashi・Minamiyamate & Oura
Where to Stay · Agoda

Places to Stay near NagasakiPR

Prices and availability are shown on Agoda.

Seasons

Nagasaki Through the Seasons

🌸

Spring

Mar–May

Cherry blossoms usually open around March 23. April highs are around 20°C, comfortable for walking around the city.

☀️

Summer

Jun–Aug

The rainy season usually runs from around June 4 to around July 19. After it ends, highs reach around 30–32°C, and with all the hills to climb, take good precautions against the heat.

🍁

Autumn

Sep–Nov

Nagasaki Kunchi is held on October 7–9. October highs are around 24°C, and in November mornings drop to around 11°C.

❄️

Winter

Dec–Feb

Highs around 11–13°C, with mornings around 4°C. Around the Lunar New Year, the city is lively with the Lantern Festival. Bundle up if you go out to see the night view.

Events

Events & festivals in Nagasaki

February

Nagasaki Lantern Festival

Kyushu ・ Nagasaki

Usually around February, at the time of the Lunar New Year (Spring Festival) (17 days from February 5 to 21 in 2027)

2027: Feb 5 (Fri) – Feb 21 (Sun), 17 days

October

Nagasaki Kunchi

Kyushu ・ Nagasaki

Every year October 7–9

2026: Oct 7 (Wed) – Oct 9 (Fri), 3 days

Fireworks

Fireworks festivals in Nagasaki

🎆 July

Nagasaki Minato Matsuri (Fireworks)

Kyushu ・ Nagasaki, Nagasaki

🎆 Usually in late July (July 25 (Sat) and 26 (Sun), 2026)

About 10,000 shells (official tourism website)
Onsen

Onsen towns in Nagasaki

♨ Onsen

Unzen Onsen

Kyushu ・ Unzen, Nagasaki

♨ Day use Adults ¥500, children ¥250, age 3 and under free (as of October 2026)

Private baths
Autumn Leaves

Autumn Leaves in Nagasaki

Mountain & highland🍁 Typical peak

Unzen Nita Pass

Kyushu ・ Unzen, Nagasaki

🍁 Typical peak: Late Oct – Mid Nov

Attractions

Attractions in Nagasaki

Aquarium

Nagasaki Penguin Aquarium

Kyushu ・ Nagasaki

An aquarium specializing in penguins, keeping 9 of the world's 18 penguin species. It's said to keep the most penguin species in the world and has one of Japan's largest penguin pools. Admission is an affordable ¥800 for adults, and it can be reached by bus from central Nagasaki.

Airport Access

Getting to Nagasaki from the airport

Compare trains, buses and taxis from the airport by travel time and fare.

Travel Passes

Travel passes you can use in Nagasaki

🚌 Bus

SUNQ PASS

Kyushu ・ Paper passes are valid for 3 or 4 consecutive days. Digital passes: the 3-day pass covers any 3 days within 5 days from the start date, and the 4-day pass any 4 days within 7 days (each day runs from 3:00 to 26:59)

🚄 JR

Japan Rail Pass

Nationwide ・ Three types: 7, 14 or 21 days. The period of use cannot be extended or changed

From ¥50,000

Getting Around

Getting to and from Nagasaki

Fukuoka (Hakata) → Nagasaki

Fastest: Fastest about 1 hr 20 min (including transfer time at Takeo-Onsen Station)

🚄 Shinkansen🚌 Highway bus
Plan Your Trip

Plan Your Nagasaki TripPR

Other Areas

Weather in Other Areas

Back to the Kyushu Weather Guide (all months & areas) →

Source: Japan Meteorological Agency (climate normals 1991-2020). Compiled by tripuuu.log. Temperature and snow figures are normals from the Nagasaki station; actual weather varies from year to year.