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Nagasaki Prefecture Free Weather Report
- Temperature
- Precipitation
- Rain Chance
- Wind
- Humidity
- Pressure
Nagasaki Prefecture Weather Report
🌤️ Introduction to the Weather for This Region
Nagasaki Prefecture, located on the western edge of Kyushu and surrounded by the East China Sea, enjoys a mild maritime climate with warm summers, cool winters, and relatively high humidity. Its coastal geography and numerous islands create microclimates, with inland areas slightly cooler and coastal zones warmer year-round. The region experiences steady rainfall, frequent cloudy days, and occasional typhoon influence during late summer.
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Categories: Nagasaki Weather, Kyushu Climate, Japan Travel
Keywords: Nagasaki temperature, Nagasaki climate guide, Kyushu weather
Source: https://www.jma.go.jp
🌡️ Avg Temp by Month
Average temperatures range from winter lows of 4–8°C to summer highs of 28–32°C. Spring and autumn offer comfortable temperatures ideal for sightseeing, while summer brings heat and humidity moderated slightly by sea breezes.
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🌦️ Type of Weather by Month
Nagasaki experiences mild winters, warming springs, humid summers, and clear autumns. Rainfall peaks during the June–July rainy season and again in September due to typhoons. Cloud cover is common, especially in winter and early spring, due to maritime influences.
Categories: Seasonal Weather, Climate Overview
Keywords: Nagasaki rainfall, Kyushu seasonal weather
Source: https://www.jma.go.jp
🔥 Hottest or Coldest Months
The hottest months are July and August, often exceeding 31°C with high humidity. The coldest months are January and February, though winters remain mild compared to northern Japan thanks to the warm Tsushima Current.
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🌡️ Min and Max Temp by Month (Jan–Feb–Mar)
January and February temperatures range from 4–12°C, with cool mornings and mild afternoons. March warms to 7–16°C as spring approaches. Snow is rare along the coast but may occur lightly in higher elevations such as Unzen.
Categories: Winter Weather, Early Spring Climate
Keywords: Nagasaki January weather, Nagasaki March temperatures
Source: https://www.jma.go.jp
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🌧️ Types of Weather, Wind, Rain, Heat
Winter is cool and cloudy with light winds and moderate humidity. Rainfall is steady but not extreme. March brings more sunshine and occasional showers as temperatures rise. Coastal winds remain gentle due to the surrounding seas.
Categories: Seasonal Weather
Keywords: Nagasaki winter climate, Kyushu wind patterns
Source: https://www.jma.go.jp
🧥 Clothes to Wear
Warm layers such as jackets, sweaters, and long sleeves are recommended for January and February. March allows lighter clothing during the day, though evenings remain cool, especially in inland or elevated areas.
Weather wardrobe guide
📈 Record Temp Recorded by Year
Winter record lows occasionally drop near freezing, while early spring record highs can exceed 20°C during warm spells. Temperature extremes are moderated by Nagasaki’s maritime climate.
Categories: Temperature Records
Keywords: Nagasaki record temperatures, Kyushu climate history
Source: https://www.jma.go.jp
🏞️ Places to Visit
Popular winter and early spring destinations include Glover Garden, Nagasaki Peace Park, and Unzen Onsen. Mild weather makes outdoor sightseeing comfortable even in midwinter.
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⚠️ Weather Incidents
Winter weather incidents are minimal, with occasional cold snaps or brief rainfall. Inland areas may experience frost, while coastal zones remain mild. March may bring isolated showers or stronger winds as seasonal transitions begin.
Categories: Weather Safety
Keywords: Nagasaki winter storms, Kyushu seasonal risks
Source: https://www.jma.go.jp
🌡️ Min and Max Temp by Month (Apr–May–Jun)
April temperatures range from 10–20°C, May warms to 15–24°C, and June reaches 19–28°C as humidity rises. Early summer heat builds toward the rainy season, with coastal areas slightly warmer and inland regions cooler.
Categories: Spring Weather, Early Summer Climate
Keywords: Nagasaki April temperatures, Nagasaki June humidity
Source: https://www.jma.go.jp
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🌧️ Types of Weather, Wind, Rain, Heat
April is mild and sunny, May brings warmer days with increasing humidity, and June marks the rainy season with frequent showers. Nagasaki’s coastal geography results in steady rainfall and occasional fog, especially in island regions.
Categories: Seasonal Weather
Keywords: Nagasaki rainy season, Kyushu spring climate
Source: https://www.jma.go.jp
👕 Clothes to Wear
April requires light layers, May is comfortable with short sleeves, and June often needs breathable clothing and rain gear due to rising humidity and rainfall. Foggy mornings may require light outerwear.
Weather wardrobe guide
📈 Record Temp Recorded by Year
Spring record highs can exceed 30°C during warm spells, while June has seen temperatures climb above 32°C in some years. Record lows remain mild thanks to Nagasaki’s maritime climate.
Categories: Temperature Records
Keywords: Nagasaki spring heat records, Kyushu climate extremes
Source: https://www.jma.go.jp
🏞️ Places to Visit
April and May are ideal for visiting Glover Garden, Dejima, and the Nagasaki Penguin Aquarium. Early June offers lush scenery before peak rainfall, making it suitable for nature walks and photography.
Travel & weather guide
⚠️ Weather Incidents
April and May are stable months, but June can bring heavy rain, localized flooding, and rising humidity as the rainy season begins. Island regions may experience stronger winds and fog.
Categories: Weather Safety
Keywords: Nagasaki rainy season risks, Kyushu weather incidents
Source: https://www.jma.go.jp
🌡️ Min and Max Temp by Month (Jul–Aug–Sep)
July and August are the hottest months, with temperatures ranging from 25–32°C. September cools slightly to 22–28°C as humidity decreases and autumn approaches.
Categories: Summer Weather, Late Summer Climate
Keywords: Nagasaki July heat, Kyushu summer temperatures
Source: https://www.jma.go.jp
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🌧️ Types of Weather, Wind, Rain, Heat
Summer brings intense heat, high humidity, and frequent rainfall. Typhoons may affect Nagasaki in August and September, bringing strong winds and heavy downpours. Coastal and island areas experience higher humidity and stronger winds than inland zones.
Categories: Seasonal Weather
Keywords: Nagasaki typhoon season, Kyushu summer storms
Source: https://www.jma.go.jp
👕 Clothes to Wear
Light, breathable clothing is essential in July and August. September remains warm but may require light layers during cooler evenings. Rain gear is recommended throughout the season, especially during typhoon periods.
Weather wardrobe guide
📈 Record Temp Recorded by Year
Summer record highs in Nagasaki often exceed 35°C, especially during heatwaves. Typhoon years may show extreme rainfall totals and strong wind events, particularly along the western coast and island chains.
Categories: Temperature Records
Keywords: Nagasaki heatwave records, Kyushu rainfall extremes
Source: https://www.jma.go.jp
🏞️ Places to Visit
Popular summer destinations include Hashima Island (Gunkanjima), Inasayama Observatory, and the Nagasaki Bio Park. September offers scenic drives and early autumn landscapes across western Kyushu.
Travel & weather guide
⚠️ Weather Incidents
Typhoons are the main weather threat in July–September, bringing strong winds, storm surges, and heavy rainfall. Heatwaves are also common in July and August, especially in inland basins.
Categories: Weather Safety
Keywords: Nagasaki typhoon impact, Kyushu heatwaves
Source: https://www.jma.go.jp
🌡️ Min and Max Temp by Month (Oct–Nov–Dec)
October temperatures range from 14–23°C, November cools to 9–17°C, and December settles into mild winter conditions at 5–13°C. Humidity drops significantly, creating crisp, clear days ideal for outdoor activities across Nagasaki Prefecture.
Categories: Autumn Weather, Winter Climate
Keywords: Nagasaki October temperatures, Nagasaki December climate
Source: https://www.jma.go.jp
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🌧️ Types of Weather, Wind, Rain, Heat
Autumn is dry and sunny with light winds. November brings cooler evenings, and December is calm with low rainfall. Typhoon activity usually ends by early October, making late autumn one of the safest and most pleasant travel periods. Coastal and island regions may experience more wind than inland areas.
Categories: Seasonal Weather
Keywords: Nagasaki autumn weather, Kyushu winter patterns
Source: https://www.jma.go.jp
🧥 Clothes to Wear
October is comfortable with light layers, November requires sweaters or jackets, and December calls for warm but not heavy winter clothing. Coastal winds may make evenings feel cooler, especially on the Goto Islands.
Weather wardrobe guide
📈 Record Temp Recorded by Year
Autumn record highs can exceed 28°C during warm spells, while December record lows may approach 0°C in inland and elevated areas. Coastal regions remain milder thanks to the Tsushima Current.
Categories: Temperature Records
Keywords: Nagasaki autumn heat records, Kyushu winter lows
Source: https://www.jma.go.jp
🏞️ Places to Visit
Autumn is ideal for exploring Glover Garden, Inasayama Observatory, and the Goto Islands. December offers clear skies perfect for photography, hot spring visits, and scenic drives across western Kyushu.
Travel & weather guide
⚠️ Weather Incidents
Weather incidents are minimal in late autumn and early winter. Occasional strong winds or cold snaps may occur, but severe events are rare. Island regions may experience stronger gusts and brief winter showers.
Categories: Weather Safety
Keywords: Nagasaki winter storms, Kyushu seasonal risks
Source: https://www.jma.go.jp
🌟 Best Month & ❗ Worst Month
The best months to visit Nagasaki are April, May, October, and November due to mild temperatures, low rainfall, and ideal sightseeing conditions. The worst months are July and August because of extreme heat, humidity, and typhoon influence.
Categories: Travel Planning, Seasonal Climate
Keywords: Best time to visit Nagasaki, Nagasaki weather seasons
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🏞️ 10 Places to Visit in Nagasaki
1. Glover Garden
2. Hashima Island (Gunkanjima)
3. Inasayama Observatory
4. Nagasaki Peace Park
5. Dejima
6. Goto Islands
7. Unzen Onsen
8. Huis Ten Bosch
9. Oura Church
10. Nagasaki Penguin Aquarium
Categories: Nagasaki Tourism
Keywords: Nagasaki attractions, Kyushu sightseeing
📝 Conclusion
Nagasaki Prefecture offers a mild maritime climate shaped by coastal winds, island geography, and warm ocean currents. With historic sites, scenic islands, and year‑round cultural attractions, the region provides excellent travel opportunities in every season. Understanding seasonal weather helps visitors plan the perfect trip.
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📘 Summary
Nagasaki features a warm, humid climate with hot summers, mild winters, and a rainy season in June–July. Spring and autumn provide the most comfortable conditions, while summer brings heat and typhoons. Each season offers unique landscapes across western Kyushu.
Categories: Weather Summary, Climate Overview
Keywords: Nagasaki climate summary, Kyushu weather overview
🔗 Links to Sources
Primary climate data sourced from the Japan Meteorological Agency.
Source: https://www.jma.go.jp
Additional travel and weather insights: https://2daysweather.com
Categories: Weather Sources, Climate Data
Keywords: Nagasaki weather data, JMA climate info
Paul (Poison Fish) Manjyu Woodman