We say this every year, and every year it turns out to be true: September is the month the locals wait for. August packs up and goes home, the beaches empty out, and the coast keeps everything that made summer good. The sea is at its warmest after three months of sun. The afternoons are still. And the sunsets, honestly, are the best of the whole year.
So, a little late but with feeling: hello, September. Here is how we would spend it.
Why September is the secret best month in Cascais
Ask anyone who lives here. The water off Cascais peaks in temperature in late summer, not midsummer, so a September swim in the coves toward Guincho is warmer than a June one. The summer wind that builds most July and August afternoons eases off, and the sea settles into long, glassy evenings. The marina is calm, the town has room to breathe, and you can get a table for dinner without planning your life around it.
Then there is the light. As the sun starts setting earlier and lower over the Atlantic, the golden hour stretches out and turns the cliffs a deep copper. Late-summer haze softens everything. If you have ever seen a photo of a Cascais sunset that looked too good to be real, it was probably taken in September.
Two hours, timed to the sunset
If we could recommend one thing this month, it would be this. Our sunset cruise is two hours shaped entirely around the golden hour: out of Marina de Cascais in the early evening, along the cliffs to find the best vantage point, then engine off, drinks poured, and nothing to do but watch the sky change colour while the boat rocks gently under you.
In September the timing lands just right. The sun goes down earlier than in July, so the whole cruise sits inside the good light, and the evening is still warm enough to stay on deck in a shirt. It is the trip we send people on when they tell us they only have one evening in Cascais. Bring someone you love, or four friends and a cheese board, like the group in the photo above.
Or make an afternoon of it
For the full version of a September day, take the four-hour Cascais experience. Cast off after lunch while the water is at its warmest, cruise the coast west toward the Guincho cliffs, drop anchor in a clear cove and swim until you are done, and then turn back east with the sun dropping behind you, so the ride home becomes the sunset cruise. Four hours is the shape that gives you both: the swim and the golden hour, with no rush in between.
Whichever you choose, it is always private. One group, one boat, up to six guests, captain and fuel included. And if your September has a specific occasion in it, a birthday, an anniversary, friends visiting who have never seen this coast, a tailor-made experience lets us build the evening around it.
Book your September evening
Here is the honest advice: September is quieter than August, but the sunset slots are the exception. There is one golden hour a day and a lot of people who want to be on the water for it, so the good evenings still go early. If you have a date in mind, send us your dates and Miguel will get back to you directly, usually within a few hours, with availability and a plan shaped around your evening.
The water is warm, the light is golden and the coast is quiet. Welcome, September. See you out there.


