Tips for Golfing During Tsuyu (Rainy Season)

Quick Facts

Tsuyu runs roughly early June through mid-July across most of Honshu, Shikoku, and Kyushu (Hokkaido is largely exempt). This guide is for golfers traveling to Japan or booking domestic rounds during that window who want to keep a trip on schedule despite unpredictable rain. No extra cost band applies beyond standard green fees, though rental rain gear and locker/dryer access can add a small daily charge. Plan for humidity and short, heavy downpours rather than all-day washouts.

Who This Guide Is For

This is for travelers with fixed dates who can't simply "wait for better weather" — business trips, group outings booked months out, or golfers combining a Japan trip with other travel. If your schedule is flexible, the simpler move is to shift your trip to late July through September or April–May and skip tsuyu planning altogether. This guide is not needed if you're already booking outside that window.

How It Works / Steps

1. Check the Japan Meteorological Agency's rainy season forecast and regional entry/exit dates before booking, since tsuyu timing shifts year to year by 1–2 weeks.
2. Book morning tee times. Convective afternoon showers are more common than steady morning rain in most regions during tsuyu.
3. Call or email the course 2–3 days out to ask about their rain-check, reschedule, or partial-refund policy — get this in writing if possible.
4. Pack a lightweight waterproof rain suit (jacket and pants), a spare glove or two, and a small towel; humidity soaks gloves faster than rain does.
5. Bring a golf bag rain cover or use the course's loaner cover if your bag isn't already water-resistant.
6. Build a buffer day into multi-course itineraries so one rained-out round can be moved rather than lost.
7. On the day, check the hourly radar (not just the daily forecast) — tsuyu rain often clears in 30–60 minute windows.

Costs & Booking Reality

Green fees during tsuyu are often slightly lower than peak-season rates, since courses see reduced demand — but this varies by course and isn't guaranteed, so verify live rather than assuming a discount. Rain-check and refund policies differ widely: some courses offer a free reschedule within a set window, others only refund cart or caddie fees, and some treat "light rain" as playable with no refund at all. Confirm exactly where that line is before you pay. Rental rain gear, if offered, is usually a small add-on fee — ask when booking rather than assuming it's included. If you're using a booking platform or hotel concierge, confirm they'll relay weather-related changes directly rather than leaving you to call the course yourself.

Regional / Course Notes

Courses in mountainous or valley locations (parts of Nagano, Gunma, and inland Kyushu) tend to see heavier, more sustained rain during tsuyu due to orographic lift, while coastal and flatland courses often get shorter, more scattered showers. Courses with good drainage — common at newer or recently renovated layouts — stay playable faster after a downpour than older courses with heavier clay soil, which can hold standing water and delay carts. If a course mentions "cart path only" conditions in their booking confirmation or on-site signage, expect slower pace of play and factor that into same-day scheduling.

Common Mistakes

• Assuming a rained-out round is automatically refundable — many courses require you to ask, not offer it upfront.
• Packing only an umbrella and no rain suit, leaving hands and forearms wet on every shot.
• Booking back-to-back courses with no buffer day, so one rain delay cascades into missed rounds.
• Ignoring hourly radar and canceling a round over a forecast that lists "rain" for the whole day but is actually two short showers.
• Forgetting a dry change of shoes and socks for the clubhouse or evening plans.
• Not confirming whether cart or caddie service still runs in heavier rain, which affects pace and total round time.

Bottom Line

Tsuyu golf is manageable if you book morning slots, confirm the rain-check policy before paying, and travel with real rain gear rather than relying on the weather to cooperate. If your dates are flexible, avoiding early June to mid-July entirely is simpler than managing around it.