Campgrounds in June are empty. The forest is at its greenest, woodsmoke drifts slow, and at night there's nothing but rain on the fly. Skipping the rainy season is a waste — systematize your wet-weather routine and tsuyu becomes the quietest, best season of the year.
Mindset: not "stay dry" but "function wet"
Rainy trips fall apart when you try to keep everything dry and your camp flow collapses. Flip it: decide up front what may get wet (tarp-side clothes, sandals) and what must never (sleeping bag, spare clothes, electronics). Two dry bags to zone your gear buys a surprising amount of calm.
Pitch order is 90% of it
In rain, tarp first. Pull only the tarp from the car, build your roof, then pitch the tent beneath it. Strike camp in reverse: fold the tent under the tarp, drop the tarp last. This sequence alone nearly eliminates the soaked-tent drive home.
- Pitch: tarp → tent → furniture
- Strike: furniture → tent → tarp
- Quarantine wet fabric in big trash bags
- Dry everything within 24h of returning
If you buy three things
A groundsheet slightly smaller than your tent floor — oversized ones become rain trays. Side-gore rain boots, for easy on-off at the tent door. And the champion dehumidifier: newspaper, which drinks up condensation and boot moisture overnight for ¥100.
How to spend a rainy night
Hang the lantern low under the tarp, boil water, drink slowly. Rain is natural white noise — plenty of campers sleep deeper than on clear nights. And if the clouds break at dawn over a steaming forest, that view is a reward reserved for the rainy season.