Nope. While car is moving, you're ok, but stationary...you're gonna get water in. If parked and raining, put a small tarp over the hood (I get mine from Harbor Freight), use magnets to hold it down on the sides. or put the tarp under the hood covering the engine, primarily the battery. In stop and go traffic, you're gonna get water in. One of the drawbacks with a vented hood...especially Tiger Hoods.