Kailua — Water Temperature in July

Water Temperature Range

24°C

minimum

27°C

average

28°C

maximum

Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

Water Temperature Chart for Month

The chart shows the average daily water temperature for each day of the month based on historical data.

Table of Water Temperatures by Day of the Month for Previous Years

Day	2025	2024	2023	2022
JUL 1	26°C	25°C	26°C	26°C
JUL 2	26°C	26°C	27°C	26°C
JUL 3	27°C	26°C	27°C	27°C
JUL 4	26°C	26°C	26°C	26°C
JUL 5	26°C	25°C	26°C	27°C
JUL 6	26°C	25°C	27°C	27°C
JUL 7	26°C	26°C	26°C	27°C
JUL 8	26°C	25°C	27°C	26°C
JUL 9	27°C	25°C	27°C	28°C
JUL 10	27°C	26°C	27°C	28°C
JUL 11	27°C	25°C	26°C	28°C
JUL 12	27°C	25°C	26°C	28°C
JUL 13	27°C	25°C	27°C	28°C
JUL 14	26°C	25°C	26°C	27°C
JUL 15	27°C	25°C	26°C	28°C
JUL 16	27°C	25°C	27°C	27°C
JUL 17	27°C	26°C	26°C	28°C
JUL 18	27°C	26°C	26°C	27°C
JUL 19	27°C	25°C	27°C	27°C
JUL 20	26°C	25°C	26°C	27°C
JUL 21	26°C	25°C	26°C	27°C
JUL 22	26°C	25°C	26°C	27°C
JUL 23	27°C	26°C	26°C	27°C
JUL 24	27°C	26°C	26°C	27°C
JUL 25	27°C	26°C	27°C	27°C
JUL 26	27°C	26°C	27°C	27°C
JUL 27	27°C	26°C	27°C	28°C
JUL 28	27°C	26°C	27°C	27°C
JUL 29	27°C	26°C	26°C	28°C
JUL 30	27°C	26°C	27°C	28°C
JUL 31	27°C	26°C	26°C	27°C

July: Climate and Swimming Opportunities

Average Night Air Temperature

23°C

Average Day Air Temperature

29°C

Precipitation Amount per Month

84 mm

Number of Rainy Days

Daylight per Day

13 hrs

Sunshine per Day

9 hrs

Average Wind Speed

17 km/h

Average Humidity

67%

At such water and air temperatures, swimming feels truly comfortable and relaxing. The warm water won’t cool you down, so you can stay in for a long time without getting chilled.