Kailua-Kona Water Temperature

(Today) 2025

25.7°C / 78.3°F

The water will feel warm (balmy). Most people will be OK with just bathers / swimming costume at this temperature. If you intend to stay in the water for a while a thin shorty wetsuit will suffice.

*Live data from Kawaihae, HI: 26.0°C / 78.8°F

Current weather

22°C / 71°F
(light rain)
Partly cloudy
Wind
3 mph
Humidity
91%

The measurements for the water temperature in Kailua-Kona, Hawaii are provided by the daily satellite readings provided by the NOAA. The temperatures given are the sea surface temperature (SST) which is most relevant to recreational users.

*Live data may vary from satellite readings for a number of reasons. These include local factors, depth of smapling and time of day.

Water temp by month

Monthly average max / min water temperatures

The graph below shows the range of monthly Kailua-Kona water temperature derived from many years of historical sea surface temperature data.

Kailua-Kona average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Kailua-Kona
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 24.3 23.8 23.9 24.2 24.5 25.1 25 25.7 25.9 26 25.1 24.2
Max °C 25.7 25.7 25.1 25.7 26.1 26.6 27.3 27.6 27.7 27.3 27.1 26.5
Min °F 76.3 75.6 75.5 76.1 76.7 77.7 77.9 79 79.3 79.3 78 76.4
Max °F 77.7 77.5 76.7 77.6 78.3 79.2 80.2 80.9 81.1 80.6 80 78.7

The warmest water temperature is in September with an average around 80.2°F / 26.8°C. The coldest month is March with an average water temperature of 76.1°F / 24.5°C.

7 day tide forecast for Kailua-Kona

TueWedThuFriSatSunMon
  • High 3:38am
    (0.21m)
  • Low 9:07am
    (-0.02m)
  • High 4:40pm
    (0.66m)
  • Low 12:09am
    (0.08m)
  • High 4:15am
    (0.18m)
  • Low 9:35am
    (-0.02m)
  • High 5:18pm
    (0.66m)
  • Low 1:01am
    (0.08m)
  • High 4:57am
    (0.16m)
  • Low 10:06am
    (-0m)
  • High 6:00pm
    (0.66m)
  • Low 1:57am
    (0.07m)
  • High 5:49am
    (0.14m)
  • Low 10:42am
    (0.02m)
  • High 6:45pm
    (0.64m)
  • Low 2:52am
    (0.06m)
  • High 6:59am
    (0.14m)
  • Low 11:28am
    (0.05m)
  • High 7:35pm
    (0.62m)
  • Low 3:40am
    (0.05m)
  • High 8:29am
    (0.16m)
  • Low 12:32pm
    (0.09m)
  • High 8:28pm
    (0.59m)
  • Low 4:20am
    (0.02m)
  • High 9:57am
    (0.21m)
  • Low 2:04pm
    (0.14m)
  • High 9:22pm
    (0.55m)
7 day tide times for Kailua-Kona

*These tide times are estimates based on the nearest accurate location (Kailua Kona, Big Island, Hawaii) and may differ by up to half an hour depending on distance. Please note, the tide times given are not suitable for navigational purposes.