Japan Weather in June — Rainy Season, Temperatures & Travel Tips (2026)

June marks the start of Japan's rainy season (tsuyu) across most of the country. While this might sound discouraging, June is actually an excellent month to visit — prices are low, tourists are few, and the rain is rarely as bad as people fear. Plus, hydrangeas are in magnificent bloom.

Use our Japan Trip Cost Calculator to plan your June budget.

Temperatures by City

Rain, Snow & Humidity

The rainy season typically runs from early June to mid-July in Honshu (Tokyo, Osaka, Kyoto). Despite its name, it doesn't rain all day every day. Expect periods of drizzle or overcast skies interspersed with clear spells. Tokyo gets about 12 rainy days in June.

Humidity is the bigger challenge — it jumps to 70–80%, making even moderate temperatures feel muggy. Hokkaido (Sapporo) largely skips the rainy season, making it an excellent June destination.

What to Wear & Pack

• Light, quick-dry clothing: Cotton gets heavy with humidity — synthetic or linen blends are better
• Rain gear: Quality compact umbrella (essential), lightweight rain jacket
• Waterproof shoes or sandals: Feet will get wet. Quick-dry walking shoes or sport sandals work well
• Compact towel: For wiping sweat and rain. Many Japanese carry small towels (tenugui)
• Deodorant: Bring from home — it's hard to find Western-strength deodorant in Japan
• Portable fan: Handheld or USB-powered — sold everywhere in Japan during summer

Travel Tips for June

• Embrace indoor activities: Museums, department stores, shopping arcades (shotengai), and indoor food markets are perfect for rainy days.
• Hydrangea viewing (ajisai): June's signature flower. Beautiful at Meigetsuin temple (Kamakura), Hasedera (Kamakura), and Mimurotoji (Kyoto).
• Visit Hokkaido: Escapes the rainy season with pleasant weather. Lavender fields begin blooming in Furano late June.
• Rain creates beauty: Temples and gardens look stunning in the rain. Mossy paths glisten, reflections are dramatic. Bring a good camera.
• Fewer tourists: Major attractions are much less crowded. You can enjoy Fushimi Inari, Kinkaku-ji, and Senso-ji without the massive queues.

Events & Festivals

• Hydrangea festivals: Throughout June at temples and gardens across Japan.
• Sanno Matsuri (mid-June): Major festival in Tokyo near the Imperial Palace.
• Firefly viewing (hotaru): Fireflies appear near streams and in rural areas from mid-June. Magical nighttime experience.
• YOSAKOi Soran Festival (mid-June): Large dance festival in Sapporo with teams from across Japan.

Cost Considerations

• Flights: 10–20% below annual average. One of the cheapest months.
• Hotels: Low prices with excellent availability. Easy to book last-minute.
• Overall: June is a genuine budget sweet spot — cheap flights, cheap hotels, few crowds.
• Budget daily estimate: ¥8,000–11,000/day

Pack right for the rain and June becomes an amazing value destination. See our summer packing guide for detailed gear lists and our flight cost guide for June airfare deals.