The water is going to pull back a long way this morning in Itanhaém, with the low at nine thirty dropping to just around a handspan deep, so if you are planning to take the kids to the beach you will have a huge stretch of wet sand to play on until the tide turns. The high this afternoon at half past three reaches only about one and a half metres, which is a modest peak compared to some days, so the whole rhythm feels gentle and unhurried, with the sea never rushing in too fast or too far.

For swimmers and small boats, the best window is around the afternoon high tide, when the water covers the rocks and gives you a good depth near the shore, but be mindful of the morning low at nine thirty because the current can pull harder as the water drains out through the channels. Fishermen will find the low tide exposes the sandbanks and makes it easier to spot where the fish are holding, though you want to avoid being out on a boat during the slack water right after the low, as the flow can be tricky to read.

If you are heading out on a kayak or a little skiff, the incoming tide from late morning to early afternoon gives you a gentle push and the most stable conditions, but keep an eye on the afternoon high at half past three because the water will start ebbing soon after and you do not want to get caught against a falling current near the river mouth. The range today is not dramatic, from around a quarter metre at the lowest to about one and a half at the peak, so it is a calm day overall, but always respect the pull when the tide is dropping.

Sunrise comes at six forty four and sunset at five forty three, which means you have a full daylight window to enjoy the low tide in the morning and the high tide in the afternoon, so plan your swim or your fishing trip around those moments and you will have a comfortable time. The key takeaway is that the morning low gives you the best access to the sand and the afternoon high gives you the best water depth, so pick your activity and enjoy the beach without any surprises.