Summer Weather in Kailua-Kona Hawaii, United States

Weather Spark on summer weather in Kailua Kona.  Anytime of the year is the best time to join us on a snorkel or manta ray tour! Daily high temperatures are around 86°F, rarely falling below 82°F or exceeding 89°F. The highest daily average high temperature is 87°F on August 21. Daily low temperatures are around 74°F, rarely falling below 71°F or exceeding 78°F. The […]