April’s moon and the perigean spring tides.

The next full Moon will be tonight (Tuesday, April 7th, 2020). The full Moon will be at perigee – the closest point in the Moon’s orbit to Earth, making it appear bigger and brighter in the sky.

The gravitational pull of the moon and the sun cause tides. When the moon and the sun are close to the earth the gravitational pull they exert is stronger, resulting in slightly higher tides. These occurrences are often called “perigean spring tides.”

Typically between 6-8 times each year, the new or full moon coincides closely in time with the perigee of the moon

Predicted water levels for San Juan Tide Station