Kosai Hotels from S$37

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Our top choices for Kosai hotels

Hotel Route Inn Hamanako

Hotel Route Inn Hamanako
3.0 star property
Kosai
8.0 out of 10, Very good, (187)
"very good"
Japan
たく
The price is S$86
29 Jan - 30 Jan, 2026
Hotel Route Inn Hamanako

Tabist Kosai Hamanako no Yado

Tabist Kosai Hamanako no Yado
2.0 star property
Kosai
7.0 out of 10, Good, (45)
"Wonderful hotel. Very quiet. Our room was huge!"
United States
Sigrid
The price is S$37
4 Jan - 5 Jan, 2026
Tabist Kosai Hamanako no Yado

Okura Act City Hotel Hamamatsu

Okura Act City Hotel Hamamatsu
4.5 star property
Naka Ward
9.0 out of 10, Wonderful, (1001)
"great breakfast."
United States
Owen
The price is S$164
25 Jan - 26 Jan, 2026
Okura Act City Hotel Hamamatsu

Comfort Hotel Toyohashi

Comfort Hotel Toyohashi
3.0 star property
Toyohashi
8.8 out of 10, Excellent, (220)
"Great hotel, good rooms and complimentary breakfast, great staff as well! Area around the property isn't the best, but a great stay! "
United States
Joshua
The price is S$61
12 Jan - 13 Jan, 2026
Comfort Hotel Toyohashi

Hotel Associa Toyohashi

Hotel Associa Toyohashi
4.0 star property
Toyohashi
9.0 out of 10, Wonderful, (1005)
"Room was very clean, beds were comfortable, the view was great, and the location is incredibly convenient."
United States
Del
The price is S$79
12 Jan - 13 Jan, 2026
Hotel Associa Toyohashi

Hotel Arc Riche Toyohashi

Hotel Arc Riche Toyohashi
3.5 star property
Toyohashi
9.4 out of 10, Exceptional, (199)
"Very well presented hotel, easy walk to train station. Very nice lounge area. "
United Kingdom
David
The price is S$104
28 Jan - 29 Jan, 2026
Hotel Arc Riche Toyohashi

HOTEL SUI HAMAMATSU

HOTEL SUI HAMAMATSU
3.5 star property
Naka Ward
9.2 out of 10, Wonderful, (268)
"breakfast was curated of local food, absolutely loved it. "
United States
Tian
HOTEL SUI HAMAMATSU

Loisir Hotel Toyohashi

Loisir Hotel Toyohashi
3.5 star property
Toyohashi
8.6 out of 10, Excellent, (623)
"Second time back this month, and impressed. I expected to feel something amiss but everything was great, from the room, the washroom, bed and quietness. This time we took the breakfast as well and it was quite the variety. Definitely worth coming here."
Canada
Christopher
Loisir Hotel Toyohashi

Toyoko Inn Toyohashi Station Higashi

Toyoko Inn Toyohashi Station Higashi
3.0 star property
Toyohashi
8.0 out of 10, Very good, (235)
"The usual comfortable, efficient, friendly and value-for-money stay that we always experience at Toyoko Inn. "
Australia
John
The price is S$74
12 Jan - 13 Jan, 2026
Toyoko Inn Toyohashi Station Higashi

Grand Mercure Lake Hamana Resort & Spa

Grand Mercure Lake Hamana Resort & Spa
4.0 star property
Nishi Ward
8.0 out of 10, Very good, (605)
"Absolutely love the local options for breakfast. Such a large variety. "
United States
Sara
The price is S$91
15 Jan - 16 Jan, 2026
Grand Mercure Lake Hamana Resort & Spa

EN HOTEL Hamamatsu

EN HOTEL Hamamatsu
3.0 star property
Naka Ward
8.0 out of 10, Very good, (355)
"Great location and new clean hotel."
United States
Douglass
The price is S$54
5 Jan - 6 Jan, 2026
EN HOTEL Hamamatsu

Comfort Hotel Toyokawa

Comfort Hotel Toyokawa
3.0 star property
Toyokawa
8.6 out of 10, Excellent, (121)
"It little bit difficult to find the hotel from train station. Well price and service"
United States
Rika
The price is S$64
12 Jan - 13 Jan, 2026
Comfort Hotel Toyokawa

Hazuki

Hazuki
3.0 star property
Shinshiro
9.4 out of 10, Exceptional, (18)
"Nice"
Japan
Tomoki
Hazuki

Hotel Sorriso Hamamatsu

Hotel Sorriso Hamamatsu
3.0 star property
Naka Ward
8.4 out of 10, Very good, (463)
"Close to train station, extremely clean, very nice breakfast, comfortable bed, room quite small"
Canada
Mike
The price is S$80
12 Jan - 13 Jan, 2026
Hotel Sorriso Hamamatsu

Hotel Route Inn Hamamatsu Dealer Dori

Hotel Route Inn Hamamatsu Dealer Dori
3.0 star property
Higashi
8.6 out of 10, Excellent, (158)
"Thank you to all the kind staff and amazing facility."
Canada
Jia Yuan
The price is S$118
5 Jan - 6 Jan, 2026
Hotel Route Inn Hamamatsu Dealer Dori

Comfort Inn Toyokawa Inter

Comfort Inn Toyokawa Inter
3.0 star property
Toyokawa
8.4 out of 10, Very good, (278)
"Great breakfast, friendly staff. Need taxi to get around"
United States
Hong W.
The price is S$56
12 Jan - 13 Jan, 2026
Comfort Inn Toyokawa Inter

Gamagori Hotel

Gamagori Hotel
3.0 star property
Gamagori
6.8 out of 10, (122)
"Quiet comfortable"
United States
Mario
The price is S$84
8 Jan - 9 Jan, 2026
Gamagori Hotel

Dormy Inn EXPRESS Toyohashi Hot Spring

Dormy Inn EXPRESS Toyohashi Hot Spring
3.0 star property
Toyohashi
9.0 out of 10, Wonderful, (158)
"Room was great, beds were amazing, amenities excellent. Staff was good and hot springs was nice. Many freebies was totally worth staying here. "
Canada
Christopher
The price is S$86
7 Jan - 8 Jan, 2026
Dormy Inn EXPRESS Toyohashi Hot Spring

Toyokawa Grand Hotel

Toyokawa Grand Hotel
2.5 star property
Toyokawa
8.8 out of 10, Excellent, (3)
The price is S$101
15 Jan - 16 Jan, 2026
Toyokawa Grand Hotel

Hazu Gassyo

Hazu Gassyo
3.0 star property
Shinshiro
8.8 out of 10, Excellent, (5)
"愛知県の自然に囲まれた素敵なお宿でした。愛知県在住ですが、なかなか県内旅行の機会はありませんでした。今回コロナで県外への行動制限により、このような発見ができてよかったです。古い建物ですので最新の設備ではありませんが、清潔で快適に過ごすことができました。(自然の中ですので虫は仕方がないと思います。) お食事も地産地消で楽しめました。忘れ物をしてしまいましたが、丁寧な梱包で迅速に対応して頂けました。"
Japan
Anonymous traveller
Hazu Gassyo
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
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Stay near popular Kosai attractions

Learn more about Kosai

Between the golden shores of Arai Benten Beach and the tranquil waters of Lake Hamana, visitors find perfect spots for swimming and watersports. Explore the historic Sakichi Toyoda Memorial House before visiting ancient Ogaji Temple where locals still come to pray beneath centuries-old trees.

Top Kosai Hotel Reviews

More cheap stays in Kosai

Frequently asked questions

What's the best place for a stay in Kosai?
Based on our traveller data, Hotel Route Inn Hamanako is one of the top choices for your stay. This hotel is a short 7-minute walk from Lake Hamana, and it offers a restaurant and free parking. Tabist Kosai Hamanako no Yado is another good option for your stay. See all available top hotels, or vacation rentals in Kosai.
If I need to cancel my hotel reservation in Kosai, will I receive a refund?
Yes! The majority of hotel room reservations are fully refundable provided that you cancel prior to the hotel's cancellation deadline, which is often 24 or 48 hours before your arrival date. If you booked a non-refundable reservation, you may still be able to cancel and be given a refund within 24 hours of booking. Filter your search by fully refundable to find flexible hotel deals in Kosai.
What are some accommodation options with pools in Kosai?
Grand Mercure Lake Hamana Resort & Spa: Hotel, 1-minute walk from Lake Hamana. Provides a children's pool, a seasonal outdoor pool and spa services. View all hotels with pools in Kosai.
What's it like staying in Kosai?
Visitors can enjoy all that Kosai has to offer, including its beaches. In Kosai, there are 7 hotels and other accommodation options to choose from. Find out more about Kosai.
What should I see while I'm in Kosai?
Natural beauty is on display at Arai Beach, Lake Hamana and Arai Benten Beach. Additionally, you might want to add Sakichi Toyoda Memorial House to your itinerary. Take a look at what more there is to see and do in Expedia's Kosai guide.
What's the seasonal weather like in Kosai?
The hottest months are usually August and July, with an average temperature of 25°C, while the coldest months are January and February, with an average of 8°C. The rainiest months in Kosai are July, June, September and October, with each month seeing an average of 293 mm of rainfall.