Swimming in Honolulu (Oahu) in august 2025: Average sea temperature in august and tide times in august 2025

Average sea temperature in Honolulu (Oahu) in august 2025.

In august, according to seasonal norms, the sea temperature in Honolulu (Oahu) is:

Minimum: 79°F

Average: 80°F

Maximum: 81°F

Other useful seasonal weather averages in august:

  • Outside temperature: 78°F to 82°F
  • Most common weather: "Clear/Sunny"
  • The wind blows at 16.2mph
  • It rains a total of 2.5in, over 3 day(s).

Should we swim in Honolulu (Oahu) in august?

Yes! The water temperature in Honolulu (Oahu) in august is ideal

In august, swimming is ideal on the beaches around Honolulu (Oahu)! With water reaching 81°F at most and 80°F on average, spending time in the water is very pleasant.

Note also that in august, the climate is perfect with an average outside temperature of 80°F, 2.5in of precipitation (over 3 days) and 76.58 % humidity.

Water and normal seasonal temperatures in Honolulu (Oahu) in august

August
Average sea temperature 80°F
Minimum sea temperature 79°F
Maximum sea temperature 81°F
Average outside temperature 81°F
Maximum outside temperature 83°F
Minimum outside temperature 79°F
Wind speed 14.3mph
Wind temperature 79°F
Precipitation 2.5in
Number of days of rain 3 jour(s)
(9%)
Humidity 77%
Visibility in kilometers 9.75km
Cloud cover 35%
Our opinion ideal swimming

Chart of the tides in august 2025

Tide times in august 2025 in Honolulu (Oahu)

Swim elsewhere in Hawaii in august

City Average T° Max. T° Our opinion
Kauai (Garden Isle) in august79°F81°Fideal swimming
Maui in august80°F82°Fideal swimming
Captain Cook in august80°F82°Fideal swimming
Hana in august80°F82°Fideal swimming
Hilo in august80°F81°Fideal swimming
Kahului in august80°F81°Fideal swimming
Kekaha in august80°F81°Fideal swimming
Kilauea in august79°F81°Fideal swimming
La'ie in august80°F81°Fideal swimming
Molokai in august80°F81°Fideal swimming
Niihau in august80°F81°Fideal swimming
Pahala in august80°F82°Fideal swimming
Waianae in august80°F81°Fideal swimming
Kihei in august80°F82°Fideal swimming

Swim in Hawaii in august: sea temperature by city

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