With a hotel there's no need to ask for the heating or look after the pool: you just go down for a swim. Between Cascais, Estoril and Sintra, the ocean is cool all year round and the mist in the Sintra hills brings cool evenings. Here are the 17 hotels I've selected on the Cascais coast, all rated at least 8/10; I particularly recommend Palácio Estoril Hotel, Golf & Wellness, Hotel Cascais Miragem Health & Spa and Legacy Hotel Cascais, Curio Collection by Hilton.
Each city has its own selection, with a page for each type of accommodation.
Places are ranked from highest to lowest rated. The yellow bubble shows the advertised water temperature, when it's known.
17 places shown
The pool. Indoor pool in the Banyan Tree spa, with hot tub and hammam; outdoor pool advertised as heated.
The hot tub. Hot tub in the Banyan Tree spa.
Guests find the pool and spa relaxing and high quality. I haven't yet found guest reviews that mention the water temperature.
Guide's tip. Priceline reports a pool closure from 1 November to 17 April: ask which pool stays open. The indoor pool is closed to under-12s.
The pool. Two indoor pools in the spa, according to Travelocity.
I haven't yet found guest reviews that mention the water temperature.
Guide's tip. Ask about the water temperature and the indoor pool's opening hours before you book.
The pool. Indoor pool and an outdoor pool open in season.
One guest finds the pool area pleasant and the pool long enough to swim in. I haven't yet found guest reviews that mention the water temperature.
Guide's tip. Ask about the water temperature and the indoor pool's opening hours before you book.
The pool. Indoor pool, mentioned by Travelocity. Heating not specified.
I haven't yet found guest reviews that mention the water temperature.
Guide's tip. Ask about the water temperature and the indoor pool's opening hours before you book.
The pool. Bright indoor pool overlooking the marina, and an outdoor pool.
I haven't yet found guest reviews that mention the water temperature.
Guide's tip. Ask about the water temperature and the indoor pool's opening hours before you book.
The pool. Outdoor pool facing the ocean, described as heated by guests, and a spa.
According to the review summary, 29 guests praise a heated pool area that's beautiful and quiet. Some find it busy in high season.
Guide's tip. Get the heating period confirmed before you book.
The pool. Indoor pool and outdoor pool with sea views.
Guests describe a clean, relaxing pool area; one guest mentions a bit of road noise. I haven't yet found guest reviews that mention the water temperature.
Guide's tip. Ask about the water temperature and the indoor pool's opening hours before you book.
The pool. Indoor pool and outdoor pool with bar.
Guests praise the indoor and outdoor pools. Others find access to the indoor pool a hassle: booking is compulsory and you have to pay for a swim cap.
Guide's tip. Book your indoor pool slot as soon as you arrive, and bring a swim cap.
The pool. Several pools, including an indoor pool and outdoor pools.
I haven't yet found guest reviews that mention the water temperature.
Guide's tip. Heating of the outdoor pools isn't specified: out of season, rely on the indoor pool.
The pool. Indoor pool and outdoor pool with views of the Moorish Castle.
Some guests find the outdoor pool cool, and five reviews complain that the water is too chlorinated.
Guide's tip. For a warm swim, go for the indoor pool.
The pool. Indoor pool, plus an open-air pool area with a bar.
The reviews summarised by Kayak don't mention the water temperature; a few guests report patchy service at reception and around the pool.
Guide's tip. The site is exposed to the Atlantic wind: the indoor pool is the safe bet outside summer.
The pool. Indoor pool, children's pool and an outdoor pool open in season.
Guests rate the pool 9/10 and often list it among the highlights. I haven't yet found guest reviews that mention the water temperature.
Guide's tip. Ask about the water temperature and the indoor pool's opening hours before you book.
The pool. Indoor pool and outdoor pool.
According to Kayak's review summary, the upkeep of the pools is often praised, but some guests were surprised to pay extra for certain facilities, including the pool. No reviews mention the water temperature.
Guide's tip. Check when you book whether access to the indoor pool is included in your rate.
The pool. Indoor pool, outdoor pool and children's pool, according to Orbitz.
I haven't yet found guest reviews that mention the water temperature.
Guide's tip. Travelocity only mentions the outdoor pools: get access to the indoor pool confirmed.
The pool. Indoor pool and outdoor pool, according to Travelocity; hot tub and sauna.
The hot tub. Hot tub.
I haven't yet found guest reviews that mention the water temperature.
Guide's tip. Ask about the water temperature and the indoor pool's opening hours before you book.
The pool. Outdoor pool and indoor pool (mentioned in a review), in landscaped grounds.
Families like the pool. One parent regrets that children's hours at the indoor pool have been cut.
Guide's tip. Check the children's time slots for the indoor pool.
The pool. Indoor pool in the spa, outdoor pool and hot tub.
The hot tub. Hot tub.
Guests rate the pool 9/10, but several find the pool and sauna below the standard they expected.
Guide's tip. Ask about the condition of the spa and pool before you book.
These places don't have a confirmed heated pool, but they do have a hot tub: the water is hot all year round. A good way to relax in the warm.
These places were suggested to us directly by their owners. The heated pool is declared by them; they don't yet have enough guest reviews to join the selection.
In my selection, the top-rated is Palácio Estoril Hotel, Golf & Wellness (Hotel), with 8.9/10 (233 reviews · Priceline). Next come Hotel Cascais Miragem Health & Spa (8.8/10) and Legacy Hotel Cascais, Curio Collection by Hilton (9.8/10).
None of the places selected on the Cascais coast clearly advertises a pool heated all year round. Palácio Estoril Hotel, Golf & Wellness, Hotel Cascais Miragem Health & Spa and Legacy Hotel Cascais, Curio Collection by Hilton have an indoor pool, sheltered from the wind. Either way, ask for the heating dates before you book.
None of the places selected on the Cascais coast gives a precise temperature. Ask the property before booking, especially out of season.
Yes: Palácio Estoril Hotel, Golf & Wellness, Hotel Estoril Eden and Pestana Sintra Golf Conference & Spa Resort also have a hot tub in addition to the heated pool.
The word "heated" on a booking page isn't enough. Every place must have a rating of at least 8/10 (or 4/5) and carries one of these four levels.
Guests mention the heated water in their reviews, with the season when they say so.
A journalist or guide who stayed there describes the heated pool.
The hotel or the platform says so, but I haven't yet found a review that confirms it.
Heating isn't specified, but the water is sheltered from the wind and cold air. Ask for the temperature before you book.
I left these out because guests report water colder than advertised, or because no heating or indoor pool is mentioned.
| Place | What the sources say | Rating | Reason |
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