Roasted sweet potatoes are one of the small pleasures of autumn in Japan, and this year Osaka Castle Park gets a whole festival built around them. Yakiimo Fes Osaka (やきいもフェス OSAKA) runs from Friday, October 30 to Sunday, November 8, 2026, at Taiyo no Hiroba (太陽の広場), a short walk from JR Osakajokoen Station. The festival is held at the same time in Tokyo and Osaka; this guide covers the Osaka venue only.
Getting in costs nothing. You only pay for what you eat and drink, and stalls take cashless payment only, so that is the one thing to sort out before you leave home.
Dates, hours and key facts
| Event | Yakiimo Fes Osaka 2026 |
|---|---|
| Dates | Fri, Oct 30 – Sun, Nov 8, 2026 |
| Hours | 11:00–19:00 Weekends and national holidays: from 10:00 |
| Venue | Taiyo no Hiroba, Osaka Castle Park (大阪城公園 太陽の広場) |
| Address | 3 Osakajo, Chuo-ku, Osaka (大阪府大阪市中央区大阪城3) |
| Admission | Free (food and drinks paid separately) |
| Payment | Cashless only |
| Reservation | Not needed |
| Parking | None |
| Weather | Goes ahead in rain; may be cancelled in stormy weather |
| Organizer | Osaka Castle Park Management Co., Ltd. (大阪城パークマネジメント株式会社) |
| Official site | yakiimofes.jp/osaka2026 |
Menu prices are not listed in the information we have. Check the official page for stall line-ups and prices.
What is on the menu
Do not expect a row of plain baked potatoes in foil. This edition is built around texture: crunchy, crispy and crackly elements paired with the soft, sticky or fluffy flesh of a well-roasted sweet potato.
Four menu themes
| Imo wo Kanaderu (芋を奏でる) | Playing with a wide range of textures |
|---|---|
| Imo wo Kagaku Suru (芋を科学する) | Pushing roasted sweet potato in new directions |
| Imo wo Tadoru (芋を辿る) | Tasting the depth of the ingredient itself |
| Crossover | Pairing sweet potato with unexpected ingredients and styles |
Savory picks that stand out
Two examples show how far some stalls take the idea:
| Mazesoba | Noodles kneaded with sweet potato paste, served with a creamy roasted sweet potato soup and bacon |
|---|---|
| Jjigae (stew) | Roasted sweet potato in a spicy, kimchi-based broth |
How to get there
There is no parking at the venue, so plan on the train. Both stations below are close.
- JR Osakajokoen Station (大阪城公園駅): about a 2-minute walk
- Osaka Metro Osaka Business Park Station (大阪ビジネスパーク駅): about a 5-minute walk
If you are making a day of it in Osaka, the Ghibli Park exhibition guide (Osaka, Yokosuka and Kyoto) and the Asoview campaign with discounts on spots like Harukas 300 are worth a look.
Paying: cashless only
Cash will not help you here, so carry at least one card or payment app. If you are still choosing a first card in Japan, our guide to credit cards in Japan for foreigners walks through the easier options. Payment apps are another route; the PayPay sign-up and referral guide explains how to set one up. Whether a given app works at these stalls is something to confirm with the organizer.
Tips before you go
- Weekend mornings start earlier. Gates open at 10:00 on weekends and national holidays, one hour earlier than weekdays.
- Check the weather. The festival runs in rain, but stormy conditions can cancel it. Look at the official page on the day if the forecast is rough.
- Look up prices in advance. We don’t have menu prices, so check the official site.
- Keep your phone charged. With cashless-only stalls, a dead battery is a real problem. A free ChargeSPOT power bank rental via d VALUE PASS is a handy backup.
FAQ
- Is entry to Yakiimo Fes Osaka free?
- Yes. Admission is free. You only pay for the food and drinks you buy.
- Can I pay with cash?
- No. The official site says payment is cashless only. It does not list which services are accepted, so check the official page before you go.
- Do I need a ticket or reservation?
- No reservation is needed.
- What are the opening hours?
- 11:00 to 19:00. On weekends and national holidays it opens at 10:00.
- Is there parking?
- No. Take the train instead. JR Osakajokoen Station is about a 2-minute walk away.
- Will it go ahead if it rains?
- Yes, it runs in rain, but it may be cancelled in stormy weather.
📚 Related Articles
Plan your next day out
See what else is on that day, that month and in the same area on our event calendar.
Get new articles by email
We will email you when a new deals article goes up. You can choose the categories, too.