What Travelers Need to Know:

Japan’s rainy season, known as tsuyu, tends to get skipped over in most travel planning, sandwiched awkwardly between the cherry blossom rush and peak summer heat. But if your dates happen to fall during this window, it’s worth understanding what to actually expect, since it’s a genuinely different travel experience rather than simply “spring but wetter.”

When Tsuyu Happens

Tsuyu typically runs from early June through mid-July across most of central and southern Japan, though exact dates shift slightly year to year and by region. Okinawa’s rainy season starts and ends earlier, generally May into June, while Hokkaido largely avoids the rainy season altogether, one of the reasons it’s a popular June destination specifically for travelers hoping to sidestep the rain.

What the Weather Actually Feels Like

Tsuyu isn’t defined by nonstop downpour so much as a persistent pattern of overcast skies, high humidity, and frequent rain showers that can appear and clear up multiple times in a single day. Temperatures during this period are generally mild to warm, but the humidity makes the air feel heavier and stickier than the temperature alone would suggest, a preview of the more intense heat and humidity that follows in July and August.

Why Tsuyu Isn’t Necessarily a Reason to Avoid Traveling

Lower crowds and prices compared to cherry blossom season or peak summer, since many travelers deliberately avoid this window.
Lush, vivid greenery, since the consistent rain keeps gardens, forests, and rice paddies especially vibrant during this period.
Hydrangeas (ajisai) in full bloom, considered the signature flower of the rainy season, with dedicated viewing spots (particularly temples and gardens in Kamakura and Kyoto) drawing domestic visitors specifically for this reason.
Indoor attractions remain fully unaffected, meaning museums, shopping, teamLab-style digital art exhibits, and dining are all just as viable regardless of the rain outside.

Practical Packing and Planning Adjustments

A compact umbrella or rain jacket is essential, and convenience stores sell inexpensive clear umbrellas nearly everywhere if you end up needing one on short notice.
Quick-drying, breathable clothing helps manage the humidity, similar to what you’d pack for summer, rather than heavier spring layers.
Waterproof or water-resistant footwear is worth considering, since sudden showers can leave sidewalks and train station entrances wet for stretches of the day.
Build flexibility into outdoor-heavy days, treating a clear morning as an opportunity to prioritize outdoor sightseeing, and shifting to museums or shopping if rain sets in.
Humidity-related fatigue is real, even without the full heat of summer, so pacing your itinerary with reasonable breaks is a sensible precaution.

Regional Variations Worth Knowing

Okinawa experiences tsuyu earlier and generally more intensely, given its subtropical climate, so if your trip includes Okinawa specifically, checking regional forecasts separately from mainland Japan is worth doing.
Hokkaido is the main exception, largely untouched by the rainy season, making it one of the more popular June destinations for travelers hoping to avoid tsuyu conditions entirely.
Central and southern Honshu, Shikoku, and Kyushu experience the most classic version of tsuyu, with the wettest, most humid stretch generally falling in mid-to-late June.

Frequently Asked Questions

Should I avoid visiting Japan entirely during tsuyu?

Not necessarily. It depends on your priorities. If avoiding rain entirely matters most, other seasons are a better fit, but if lower prices, thinner crowds, and vivid greenery appeal to you, tsuyu isn’t a reason to cancel or reschedule a trip.

Does it rain all day, every day, during tsuyu?

No, typically. Rain tends to come in waves rather than as constant, all-day downpours, and many days include stretches of clear or overcast weather without active rain.

Is Hokkaido really rain-free during tsuyu?

Largely yes, which is why it’s specifically recommended as a rainy season alternative for travelers whose dates fall during this window but who want to avoid the wetter conditions found elsewhere in the country.

What should I prioritize packing if my trip falls during tsuyu?

A compact umbrella or rain jacket, quick-drying clothing, and water-resistant shoes cover most of what you’ll actually need, alongside the general summer-style packing you’d bring for the humidity.

Next Steps

If your trip dates fall during tsuyu and you can’t shift them, lean into what the season does offer, hydrangea viewing, lower prices, and quieter crowds, rather than treating it purely as an obstacle. Pack for rain and humidity, build flexibility into outdoor-heavy days, and consider Hokkaido if avoiding rain entirely is a priority.

This post is part of an ongoing series on Japan travel planning. Check back for more seasonal guides and regional travel tips.

Rakuten Travel is one of Japan’s largest and most popular domestic travel booking platforms. It features an extensive database of hotels, ryokan, resorts, and other accommodations across Japan, making it an excellent choice for travelers looking to book stays throughout the country. Available in your language.

Japan’s Rainy Season (Tsuyu)