The first thing to look for is a calm stretch of water. If you see big waves to the left of you and big waves to the right, but the water in front of you appears to be calm, that is a strong sign of a rip current.
Until a couple weeks ago, when GMA mentioned that one can actually (possibly) spot a rip current from the beach, I never knew it was possible.

We usually only get short blurbs on the news for if one is caught in a rip current. They always show a diagram from overhead of a swimmer in the water, far from shore. And the diagram shows arrows about swimming parallel to the shore. They always made it seem as though rip currents are an unforeseen and unknowable phenomenon ahead of time.
Then, on GMA, someone mentioned to be aware of a calm stretch of water in between breaking waves on either side. And they mentioned for the first time how when you look at the surf that had washed up on the sand already, it comes in along a straight-ish line up on the beach. But, the area where a rip current is, the water has washed up higher onto the beach. But, the tide there seems to be back out, and calmer. People who placed their beach blankets there, thinking the tide is out get wet as a sudden wave comes back up, again higher than the other areas.
It may feel counterintuitive to avoid the calmer water, but what you can’t always see is the current underneath moving away from the shore. If it’s a really strong rip, it doesn’t have to get very deep for you to be knocked off your feet and pulled out.
In thinking about it, that is the area were we always walk in the water along the shore line.
We go to a couple beaches along the Jersey Shore. There are long stretches of beach, about a half mile long. We usually don't hang out where the lifeguards are at as that's where the kids are noisily swimming and playing. It's, naturally more crowded by them.
We usually walk along the shore, wading our feet, only about knee deep and usually end up standing in the calm area. When the surf rolls in, since it's calmer there, a wave may go over us, only to thigh or waist high. Sometimes, we walk during sunset, after the lifeguards have left already. We always thought we were safe there. We weren't swimming. And we weren't in deep water.
But, I realize how lucky we've been. If there was a sudden drop off underneath us, eroded away, or we tripped, by the time we righted ourselves and tread water, we could have been pulled out a ways as we were in the rip current area.

Our local news needs to spend just as much time on how to spot a rip current area to avoid it, as it does on getting out of one.
