Grand Haven water temperature by month

Swimmable from July through August.

Month by month

Month Typical Feels
January 34° brisk
February 34° brisk
March 38° brisk
April 47° brisk
May 55° brisk
June 64° brisk
July 71° refreshing
August 70° refreshing
September 68° refreshing
October 59° brisk
November 49° brisk
December 37° brisk

The year at a glance

swimmable 20° 30° 40° 50° 60° 70° 80° 71° 34° JFMAMJJASOND January: typically 34° — brisk February: typically 34° — brisk March: typically 38° — brisk April: typically 47° — brisk May: typically 55° — brisk June: typically 64° — brisk July: typically 71° — refreshing August: typically 70° — refreshing September: typically 68° — refreshing October: typically 59° — brisk November: typically 49° — brisk December: typically 37° — brisk

The water right now

Typically about 59° in October — brisk.

from the Holland Harbor station, about 20 miles away

brisk

bath-warm 80° and up perfect 72–79° refreshing 65–71° brisk below 65° 59° typical for October

The nearest water-temperature sensor on this shore sits twenty miles south, in the Holland Harbor channel. Expect the number to move whatever the distance: this stretch of Lake Michigan can drop fifteen degrees in two days and climb back the same week.

About this reading

The Holland Harbor station sits in the harbor; open-water surf can read a few degrees different.

Reading from the Holland Harbor station, about 20 miles away. That's a long way down the coast — treat this as the area's surf temperature, not the sandbar in front of you.

Warm water says nothing about surf, rip currents, or bacteria — check local lifeguard flags and advisories.