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Tomioka

Province · Gunma Prefecture, 🇯🇵 Japan
Population 46,928
Area 123 km²
Time zone Asia/Tokyo
Official website www.city.tomioka.lg.jp

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Tomioka — Map

Tomioka — Map

Climate & when to visit

Select a month

Typical weather in January

Poor
  • -1° (feels like -7°) · extremes -12°–4°
  • -8° at night
  • 17 rainy days
  • 3 sunny days
  • 5 hours of sunshine per day
  • Dry air
  • Light breeze
  • UV index 2 · low

Typical weather in February

Poor
  • 0° (feels like -6°) · extremes -12°–7°
  • -8° at night
  • 14 rainy days
  • 6 sunny days
  • 5 hours of sunshine per day
  • Dry air
  • Light breeze
  • UV index 3 · moderate

Typical weather in March

Poor
  • 5° (feels like 0°) · extremes -9°–14°
  • -4° at night
  • 13 rainy days
  • 8 sunny days
  • 6 hours of sunshine per day
  • Dry air
  • Light breeze
  • UV index 4 · moderate

Typical weather in April

Poor
  • 12° (feels like 8°) · extremes -4°–20°
  • 1° at night
  • 12 rainy days
  • 10 sunny days
  • 7 hours of sunshine per day
  • Dry air
  • Light breeze
  • UV index 5 · moderate

Typical weather in May

Good
  • 18° (feels like 16°) · extremes 1°–24°
  • 7° at night
  • 13 rainy days
  • 9 sunny days
  • 7 hours of sunshine per day
  • Dry air
  • Calm winds
  • UV index 6 · high

Typical weather in June

Good
  • 22° (feels like 21°) · extremes 7°–26°
  • 12° at night
  • 16 rainy days
  • 5 sunny days
  • 5 hours of sunshine per day
  • Comfortable humidity
  • Calm winds
  • UV index 6 · high

Typical weather in July

Good
  • 25° (feels like 27°) · extremes 13°–29°
  • 17° at night
  • 20 rainy days
  • 3 sunny days
  • 5 hours of sunshine per day
  • Muggy, humid air
  • Calm winds
  • UV index 7 · high

Typical weather in August

Fair
  • 26° (feels like 28°) · extremes 14°–29°
  • 18° at night
  • 19 rainy days
  • 4 sunny days
  • 6 hours of sunshine per day
  • Muggy, humid air
  • Calm winds
  • UV index 7 · high

Typical weather in September

Good
  • 22° · extremes 8°–27°
  • 14° at night
  • 17 rainy days
  • 5 sunny days
  • 5 hours of sunshine per day
  • Humid air
  • Calm winds
  • UV index 6 · high

Typical weather in October

Fair
  • 16° (feels like 14°) · extremes 2°–22°
  • 7° at night
  • 14 rainy days
  • 8 sunny days
  • 5 hours of sunshine per day
  • Dry air
  • Calm winds
  • UV index 4 · moderate

Typical weather in November

Poor
  • 10° (feels like 6°) · extremes -3°–16°
  • 1° at night
  • 14 rainy days
  • 8 sunny days
  • 5 hours of sunshine per day
  • Dry air
  • Calm winds
  • UV index 3 · moderate

Typical weather in December

Poor
  • 3° (feels like -2°) · extremes -9°–9°
  • -4° at night
  • 18 rainy days
  • 5 sunny days
  • 4 hours of sunshine per day
  • Dry air
  • Light breeze
  • UV index 2 · low

Climate data: NASA POWER (MERRA-2) · 1996–2025

Practical information

Currency
Japanese Yen JPY ¥ · Card payments · Commonly accepted
Emergency numbers
118
Electricity
Type A / Type B
100 V · 60 Hz
Languages
Japanese
Tap water
Safe to drink
Driving side
Left
Calling code
+81
Learn more

Tours & Activities

Riverside Hotel
Taxi · 8 min
Tomioka
2h
Walk · 6 min
Corner Café
45 min
Walk · 18 min
Riverside Hotel

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Related destinations

Gunma Prefecture

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