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🌤 Gunma Prefecture Weather
Gunma Prefecture, located in the northern Kanto region of Japan, is famous for its hot springs, mountains, and ski resorts. The climate varies significantly between the mountainous north and the plains in the south. Winters are cold and snowy in the mountains, while summers are hot and humid across the prefecture. Seasonal changes are distinct, making Gunma a fascinating destination year-round. This report provides a detailed month-by-month overview of Gunma’s weather, helping residents and travelers prepare for seasonal variations. For daily updates, reliable resources include Japan Weather and BBC Weather.
Understanding Gunma’s weather is essential for planning activities such as skiing in Minakami, hiking Mount Akagi, or enjoying cherry blossoms in spring. Each month brings unique conditions, from heavy snowfall in the mountains to humid summer rains in the plains. This report outlines the lowest and highest temperatures, common weather types, and clothing recommendations for each season, ensuring comfort and safety throughout the year.
📅 Monthly Weather Overview: Winter to Early Spring
❄ January
January in Gunma is cold, with temperatures ranging from -5°C to 5°C. Mountainous areas such as Minakami and Kusatsu experience heavy snowfall, while the plains are cold but often sunny. Winds can be strong, especially in open valleys. Thick winter coats, insulated boots, gloves, and scarves are essential. For precise forecasts, consult Japan Weather or BBC Weather.
🌨 February
February remains frigid, with temperatures between -4°C and 6°C. Snow continues to fall heavily in the mountains, while plains areas see cold rain and occasional frost. Clear, crisp days alternate with snowstorms. Warm coats, thermal layers, and waterproof footwear are recommended for comfort and safety.
🌱 March
March marks the gradual transition to spring, with temperatures ranging from 1°C to 11°C. Snowfall persists in higher elevations but begins to lessen toward the end of the month. Rain showers become more frequent, and winds remain chilly. A combination of warm coats and layered clothing is advisable, along with waterproof shoes for slushy streets.
🌸 Monthly Weather Overview: Spring
🌷 April
April in Gunma is mild and refreshing, with temperatures ranging from 6°C to 16°C. Snow begins to melt in the mountains, though patches may remain in higher elevations such as Mount Akagi. Rainfall increases, and winds are moderate, bringing a fresh feel to the countryside. A medium-weight jacket, layered clothing, and waterproof shoes are recommended. For daily updates, check Japan Weather or BBC Weather.
🌼 May
May brings warmer weather, with temperatures between 11°C and 20°C. Snow disappears from most areas, though cooler winds persist in the mountains. Rain showers are common, and spring flowers begin to bloom across Gunma’s valleys and parks. Light sweaters, breathable clothing, and rain gear are advisable for this month.
☔ June
June marks the start of the rainy season, with temperatures ranging from 15°C to 23°C. Rainfall increases, especially along river valleys and plains, while mountain areas remain cooler. Winds are gentle, and landscapes turn lush and green. Light clothing, umbrellas, and waterproof footwear are essential for comfort during this season.
🌞 Monthly Weather Overview: Summer to Early Autumn
🏖 July
July is warm and humid, with temperatures between 19°C and 27°C. Rain showers occur, but sunny days dominate, making it ideal for festivals and outdoor activities such as hiking in Minakami or enjoying riverside outings. Lightweight clothing, hats, and sunscreen are essential to stay comfortable.
🌻 August
August is the warmest month in Gunma, with temperatures ranging from 21°C to 30°C. Humidity is high, but breezes in mountain areas provide relief. Occasional rain showers occur, but overall conditions are comfortable. Breathable fabrics, sun protection, and sturdy footwear are recommended.
🍂 September
September signals the transition to autumn, with temperatures cooling to between 17°C and 25°C. Rainfall is moderate, and winds increase, especially in open plains and mountain valleys. Autumn foliage begins to appear toward the end of the month. A light jacket or sweater is advisable, along with rain gear for sudden showers.
🍁 Monthly Weather Overview: Autumn to Winter
🎃 October
October in Gunma is cool and refreshing, with temperatures ranging from 10°C to 18°C. Rainfall decreases, and the air becomes crisp, while autumn foliage begins to appear in Minakami and Nikko-like mountain areas. Winds are moderate, and evenings can feel chilly. A medium-weight jacket, layered clothing, and comfortable shoes are ideal for enjoying the outdoors. For detailed updates, consult Japan Weather or BBC Weather.
🍂 November
November signals the onset of colder weather, with temperatures dropping to between 5°C and 12°C. Rain showers are common, and crisp winds sweep across the plains. Autumn foliage reaches its peak in Gunma’s mountains and valleys, making it a popular month for sightseeing. Warm coats, scarves, and gloves are recommended for comfort.
❄ December
December is firmly winter, with temperatures ranging from -2°C to 7°C. Snowfall blankets the mountainous regions, while plains areas remain cold and windy. Winds can be strong, especially near open valleys. Thick winter coats, insulated boots, and thermal layers are essential for staying warm. Festive lights brighten Gunma’s towns, making outdoor strolls enjoyable despite the chill.
🌤 Gunma Prefecture Weather Report
⭐ 10 Famous People
- Yoshinobu Tokugawa
- Ken Watanabe
- Rie Miyazawa
- Shunji Iwai
- Ayaka Hirahara
- Koji Yakusho
- Ryo Ishikawa
- Hiroshi Fujiwara
- Megumi Hayashibara
- Beat Takeshi (Kitano Takeshi)
📘 20 Facts
- Gunma Prefecture is located in the northern Kanto region of Japan.
- Maebashi City is the capital.
- It has a humid continental climate.
- Summers are warm and humid.
- Winters are snowy and cold in the mountains.
- It is famous for Kusatsu Onsen hot springs.
- It produces high-quality silk historically.
- It is known for ski resorts in Minakami.
- It has national parks and reserves.
- It is home to Mount Akagi and Mount Haruna.
- It produces sake and miso.
- It is famous for Daruma dolls from Takasaki.
- It has scenic mountain landscapes.
- It is known for samurai heritage.
- It produces textiles and crafts.
- It is home to Tomioka Silk Mill (UNESCO site).
- It has strong ties to traditional folk culture.
- It is famous for Gunma-chan mascot.
- It is a major agricultural region of Japan.
- It is a popular destination for autumn foliage viewing.
😂 20 Funny Facts
- Locals joke that hot springs are their winter gyms.
- Festival floats are decorated with giant Daruma dolls.
- Some ramen shops serve hot spring egg toppings unique to Gunma.
- Tourists race to spot Gunma-chan mascots everywhere.
- Green tea ice cream is sold everywhere.
- Locals joke that summer lasts only one month in the mountains.
- Some vending machines sell hot corn soup.
- Festival parades include giant paper lanterns.
- Snowmen in Kusatsu often wear scarves and hats.
- Tourists often wear ski gear in shopping malls.
- Locals joke that clearing autumn leaves is a full-time job.
- Some houses have Daruma-themed decorations year-round.
- Residents joke that sake keeps them warm in winter.
- Festival floats are decorated with giant bowls of ramen.
- Locals say “rain is our fifth season.”
- Tourists often mistake festival mascots for anime characters.
- Some ramen shops serve crab toppings.
- Festival mascots dance like sumo wrestlers.
- Locals joke that Gunma dialect is stronger than coffee.
- Tourists race to spot ferries along Tone River.
📝 Summary
The Gunma Prefecture Weather Report highlights the area’s diverse climate, from snowy winters in the mountains to warm summers in the plains. Each month brings unique conditions, with temperatures, snowfall, and winds shaping daily life. Clothing recommendations vary from heavy coats in winter for Kusatsu’s higher elevations to breathable fabrics in summer across Maebashi. Beyond weather, Gunma is rich in culture, history, and humor, offering fascinating facts and quirky traditions. With resources like Japan Weather and BBC Weather, travelers and residents can stay informed and prepared for the prefecture’s ever-changing climate.
