Tourists on board a dolphin safari boat watched as hundreds of dolphins jumped in and out of the water.
The area, Dana Point just off the coast of California, is considered to have the highest population of dolphins of anywhere in the world.
It's estimated a thousand dolphins were seen jumping out of the water.
Wednesday will be less humid but it remains warm all week long.
Tuesday (93/72): Clouds/Storm
Wednesday (88/74): Sun/Clouds
Thursday (89/67): Sunny/Hot