Honolulu — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Honolulu (Hawaii, United States). It includes the current water temperature, daily data for the last month presented in a simple chart, and a 7-day forecast. The page also compares today’s value with typical averages for this period, shows usual monthly ranges during the year, and lists nearby beaches with short descriptions. Local weather for the next few days and general details about Honolulu help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Honolulu in the Pacific Ocean today is 27°C.
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 Honolulu rose over the last 30 days but fell over the last week. Currently, the sea water temperature at this location matches the average for this day in previous years.
According to our forecast, Water temperature in Honolulu will be 26.5°C in the next 7 days. See the table below for daily data for the upcoming week.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUN 24 | 26.9°C | 24.5°C | |
| JUN 25 | 26.9°C | 24.8°C | |
| JUN 26 | 26.9°C | 25.8°C | |
| JUN 27 | 26.8°C | 25.5°C | |
| JUN 28 | 26.7°C | 26.3°C | |
| JUN 29 | 26.7°C | 26.0°C | |
| JUN 30 | 26.6°C | 26.8°C | |
| JUL 1 | 26.6°C | 26.8°C | |
| JUL 2 | 26.7°C | 26.8°C | 26.7°C |
| JUL 3 | 26.3°C | 26.7°C | |
| JUL 4 | 26.8°C | 26.6°C | |
| JUL 5 | 26.5°C | 26.6°C | |
| JUL 6 | 26.5°C | 26.6°C | |
| JUL 7 | 26.3°C | 26.6°C | |
| JUL 8 | 26.3°C | 26.5°C | |
| JUL 9 | 26.3°C | 26.5°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Water temperature data for this location is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.
Annual Water Temperature Overview by Month
Monthly Water Temp Ranges
Annual Water Temperature Trend
Honolulu, on the southeastern shore of the island of Oahu, enjoys a mild tropical ocean climate with sea temperatures that stay fairly steady through the year. Typical water temperatures range from around 23°C in the coolest winter months to about 28°C at the height of summer. During December through February the ocean commonly hovers near 23–24°C, spring sees a gradual rise into the mid-20s, and the warmest conditions are usually reached in late summer and early autumn with temperatures near 27–28°C. Local variations occur with currents, wind and seasonal swell patterns, so short-term changes of a degree or two are normal, but overall the water remains inviting for most visitors year-round.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 23°C | 25°C | 26°C |
| February | 22°C | 25°C | 26°C |
| March | 22°C | 25°C | 26°C |
| April | 23°C | 25°C | 26°C |
| May | 23°C | 26°C | 27°C |
| June | 24°C | 26°C | 28°C |
| July | 24°C | 27°C | 28°C |
| August | 25°C | 27°C | 28°C |
| September | 25°C | 27°C | 28°C |
| October | 25°C | 27°C | 29°C |
| November | 24°C | 26°C | 28°C |
| December | 23°C | 25°C | 27°C |
* Click on a month to view detailed water temperature data.
Honolulu: Weather Forecast
July 3
July 4
July 5
July 6
July 7
Location, Beaches & Local Information
Nearby Beaches & Facilities
Ala Moana Beach Park
Sand Island State Beach Park
Kakaako Waterfront Park
Kewalo Basin Park
Duke Kahanamoku Beach
Grays Beach
One State Park Beach Club House
Royal Moana Beach
Fort DeRussy Beach
Swimming Conditions
That steady warmth makes Honolulu a strong choice for a beach-based holiday, offering a mix of gentle swimming beaches, snorkeling reefs and surf opportunities for different skill levels. Waikiki and Ala Moana provide sheltered, lifeguarded stretches ideal for families and casual swimmers, while Hanauma Bay (nearby) is renowned for snorkeling in clear, shallow water when visibility is good. Surf lessons and stand-up paddleboarding are widely available for beginners, and stronger surf seasons attract experienced surfers at exposed breaks. Visitors should observe posted safety warnings about rip currents and changing conditions, and consider guided options for boat-based excursions or reef trips. For those visiting in winter, whale-watching tours can complement beach time, and the generally warm 23–28°C sea means paddling, snorkeling or swimming is comfortable most of the year.