Waikiki — Water Temperature, Sea Conditions & Trends

Water Temperature: Daily Trends, Historical Records, and Forecast

✅ As of today, the minimum water temperature ranges from 79°F (26°C) to 82°F (28°C). This is very warm water, allowing for extended stays without any discomfort. Swimming in these conditions will be particularly enjoyable, making it the ideal temperature range for those who want to relax in the sea. Additionally, water in this temperature range is suitable for children and elderly people, as it is comfortable for prolonged stays.

It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.

Water Temperature Chart Over the Last 30 Days

Water temperature in Waikiki has risen over the last week and month. Currently, the sea water temperature at this location matches the average for this day in previous years.

According to our forecast, Water temperature in Waikiki will be 26.3°C in the next 7 days. See the table below for daily data for the upcoming week.

Table of Daily Sea Temperature Data

Annual Water Temperature Overview by Month

Monthly Water Temp Ranges

30°C

25°C

20°C

15°C

10°c

5°C

0°C

Annual Water Temperature Trend

Waikiki is the famous beachfront neighborhood on the southern shore of Oʻahu, known for its broad crescent of sand, warm trade winds and steady Pacific waters. Sea temperatures there remain inviting throughout the year: in winter months (December–February) surface water typically runs about 23–25 °C, in spring (March–May) about 24–26 °C, in summer (June–August) about 26–28 °C, and in autumn (September–November) about 25–27 °C. These modest seasonal shifts mean the ocean is generally warm enough for swimming without heavy thermal protection year-round, with the warmest water usually occurring in late summer and the coolest in mid-winter.