A stone lantern, a pine tree, and a coastal view.

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Check availability on Kosai Beach Resorts & Hotels

Tonight
12 Oct - 13 Oct
Tomorrow
13 Oct - 14 Oct
This weekend
16 Oct - 18 Oct
Next weekend
23 Oct - 25 Oct

Our top choices for Kosai beach hotels

A buffet line with various food items and condiments.
A hotel room with a bed, a desk with a telephone, a television, and a window with curtains.
A bathroom with a bathtub, a sink, a toilet, and a mirror.
A multi-story hotel with a green roof and numerous windows.

1. Hotel Route Inn Hamanako

Hotel Route Inn Hamanako
Kosai
฿2,503
฿2,753 total
10 Nov - 11 Nov
Hotel Route Inn Hamanako
A traditional Japanese-style room with tatami flooring, a woven rattan ottoman, and a view of a cityscape through large windows.
A restaurant with large windows offering a view of a sunset over a body of water.
A hotel room with two beds, a TV, a desk, and a view of the water.
A dining area with wicker furniture and a table set for two, overlooking a body of water and mountains.

2. Grand Mercure Lake Hamana Resort & Spa

Grand Mercure Lake Hamana Resort & Spa
Nishi Ward
฿1,488
฿1,864 total
11 Nov - 12 Nov
Grand Mercure Lake Hamana Resort & Spa
A sunset over a calm body of water with a dock and boats.
A marina with several boats docked, a wooden pier extending into the water, and distant mountains in the background.
A cluttered storage area with various items, including boxes and debris, in a residential setting.
A traditional Japanese building with a tiled roof, wooden doors, and a gated entrance.

3. Minshuku Takahashi Kashibuneten

Minshuku Takahashi Kashibuneten
Nishi Ward
฿2,118
฿2,330 total
14 Oct - 15 Oct
Minshuku Takahashi Kashibuneten
The exterior of the Centurion Hotel with a clear view of the entrance, including the name and address.
A hotel room with two beds, a bedside table, a phone, and a wall-mounted picture.
A lobby with seating arrangements, a reception desk, and a wall decorated with colorful artwork.
A buffet with various dishes including seafood, salads, and noodles.

4. Centurion Hotel Hamamatsu

Centurion Hotel Hamamatsu
Naka Ward
฿908
฿998 total
18 Oct - 19 Oct
Centurion Hotel Hamamatsu
A library cafe with wooden tables and chairs, bookshelves, and a coffee bar.
A modern library with wooden tables and chairs, bookshelves, and a large window with blinds.
A laundry facility with multiple washing machines and dryers, including a CO/N washer and a 45kg dryer.
A modern library with wooden tables and chairs, bookshelves, and hanging light fixtures.

5. Comfort Hotel Hamamatsu

Comfort Hotel Hamamatsu
Naka Ward
฿1,425
฿1,567 total
18 Oct - 19 Oct
Comfort Hotel Hamamatsu
A hotel lobby with a reception desk, glass doors, and a staircase.
Bar (on property)
A modern building with a curved facade, large windows, and a staircase leading to an upper level.
A modern gym with exercise equipment, a wall of dumbbells, and large windows.

6. Crowne Plaza - ANA Hamamatsu by IHG

Crowne Plaza - ANA Hamamatsu by IHG
Naka Ward
฿1,659
฿2,520 total
18 Oct - 19 Oct
Crowne Plaza - ANA Hamamatsu by IHG
A modern kitchen with a large island, bar stools, and a city view through large windows.
A spacious lobby with high ceilings, large golden columns, and a polished marble floor.
A tall, modern hotel with a curved facade and a prominent dome on top.
A spacious lobby with a grand piano, seating area, and a large decorative column.

7. Okura Act City Hotel Hamamatsu

Okura Act City Hotel Hamamatsu
Naka Ward
฿3,676
฿4,448 total
18 Oct - 19 Oct
Okura Act City Hotel Hamamatsu
A modern hotel room with a bed, a leather sofa, and a large window with curtains.
A modern hotel building with a prominent "HOTEL LEON" sign.
A modern lounge area with leather sofas, a chandelier, and wall-mounted lighting fixtures.
A modern hotel reception area with a geometric patterned wall, a reception desk, and a staircase leading to the upper floor.

8. Hotel Leon Hamamatsu

Hotel Leon Hamamatsu
Naka Ward
฿999
฿1,112 total
25 Oct - 26 Oct
Hotel Leon Hamamatsu
A Daiwa Roynet Hotel with a modern design, featuring a grid of windows and a prominent hotel logo on the facade.
A modern bathroom with a sink, toilet, and bathtub.
A modern reception area with a dark tiled wall and a glass counter.
A hotel room with two beds, a desk, a chair, a small table, and a window with curtains.

9. Daiwa Roynet Hotel Hamamatsu

Daiwa Roynet Hotel Hamamatsu
Naka Ward
฿2,166
฿2,621 total
12 Oct - 13 Oct
Daiwa Roynet Hotel Hamamatsu
Restaurant
A hotel room with two beds, a desk, a TV, and a small table.
A reception desk with a nameplate reading "Richmond" and a person in a business suit shaking hands with another individual.
A tall hotel building with a sign reading "Richmond Hotel" at the top.

10. Richmond Hotel Hamamatsu

Richmond Hotel Hamamatsu
Naka Ward
฿1,906
฿2,097 total
18 Oct - 19 Oct
Richmond Hotel Hamamatsu
View all properties

Choose what matters most at beach hotels in Kosai

Pool
Breakfast included
4 stars
5 stars
All-inclusive

Top Kosai Hotel Reviews

Okura Act City Hotel Hamamatsu

Okura Act City Hotel Hamamatsu

10/10 Excellent
"Another great Hotel in Japan I love it"
Ernesto 1-night trip
Posted 3 weeks ago
Okura Act City Hotel Hamamatsu
EN HOTEL Hamamatsu

EN HOTEL Hamamatsu

8/10 Good
"Overall the stay was great. I just wish there were more power outlets in the room. The one by the door was too loose and couldn't be used properly. There was one power strip on the wall but that was it The one thing we didn't like was the smoking room in one corner of the main lobby. Even though it has a door isolating it, the smell of cigarette was still strong around the lobby and reception area."
Guilherme 3-night trip
Posted 5 months ago
EN HOTEL Hamamatsu

Frequently asked questions

What is Kosai like for travellers who love the beach?
Find a great place to stay in Kosai, which has a lot to offer the traveller looking to book a beach holiday.
When's the best time for a beach holiday in Kosai?
You can plan your beach trip with a look at the seasons 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.
What is there to see and do around Kosai?
After arriving and checking into your hotel, you'll probably want to explore your surroundings. If you're eager to check out the beaches, head to Arai Benten Beach or Maisaka Beach for some relaxation by the water. Make time for a range of local attractions, which include Lake Hamana and Arai Beach. For additional things to see and do, consider a visit to Sakichi Toyoda Memorial House or Ogaji Temple.
What's the best way to get to my beach hotel in Kosai?
This travel information can help you get to and around your beach accommodation in Kosai with ease. The closest major airport is in Shizuoka (FSZ-Mt. Fuji - Shizuoka), located 38.5 mi (62 km) from the city centre. If you'd like to explore around the area, you may want a rental car for your journey.

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