Waimea Bay water temperature

Typically about 80° in August — bath-warm.

from the wave buoy off Waimea Bay, about 4 miles away

bath-warm

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

In summer Waimea is a calm swimming bay you can wade into. From November the same water stacks up into the biggest surf on Oahu.

The year at a glance

Swimmable year-round.

swimmable 70° 80° 90° 81° 76° JFMAMJJASOND January: typically 77° — perfect February: typically 76° — perfect March: typically 76° — perfect April: typically 77° — perfect May: typically 77° — perfect June: typically 79° — perfect July: typically 79° — perfect August: typically 80° — bath-warm September: typically 81° — bath-warm October: typically 81° — bath-warm November: typically 79° — perfect December: typically 78° — perfect

Month by month

Month Typical Feels
January 77° perfect
February 76° perfect
March 76° perfect
April 77° perfect
May 77° perfect
June 79° perfect
July 79° perfect
August 80° bath-warm
September 81° bath-warm
October 81° bath-warm
November 79° perfect
December 78° perfect

About this reading

The reading comes from the wave buoy off Waimea Bay, just off the coast.

Reading from the wave buoy off Waimea Bay, about 4 miles away.

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