Anaehoomalu Bay Sea Temperature
Updated Sat 17:53 (Pacific/Honolulu)
USA · Forecast updated Sep 5, 2026, 17:53 UTC
Current Sea Temperature
28.0°C
82.4°F
Very warm water
Versus this month's average
0.4°C below
The September average in our archive is 28.4°C (83.0°F).
Recent trend
Holding fairly steady
Seven-day average: 28.3°C, versus 28.4°C in the prior seven days.
What to wear
Very warm water
Swimwear is usually enough; a rash guard adds sun protection.
Cold tolerance varies. Wind, session length, sunshine, and exertion also affect comfort; temperature alone does not describe sea conditions.
Sea Surface Temperature Over the Year
In the data collected for Anaehoomalu Bay, monthly averages range from about 27.5°C (81.5°F) in June to 28.4°C (83.0°F) in September.
Over the past 30 days, the average sea temperature in Anaehoomalu Bay has been 28.3°C.
Monthly Water Temperature Averages
Northern Hemisphere. Summer is generally June–August; winter is December–February.
| Month | Min | Average | Max |
|---|---|---|---|
| June | 27.2°C / 81.0°F | 27.5°C / 81.5°F | 27.8°C / 82.0°F |
| July | 27.2°C / 81.0°F | 28.0°C / 82.4°F | 28.6°C / 83.5°F |
| August | 27.7°C / 81.9°F | 28.3°C / 82.9°F | 28.8°C / 83.8°F |
| September | 28.0°C / 82.4°F | 28.4°C / 83.0°F | 28.8°C / 83.8°F |
Profile calculated from 1734 hourly forecast records across 4 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Anaehoomalu Bay
Waikoloa resort bay, often called A-Bay, with easy access and patch reef snorkeling.
- Area
- Waikoloa
- Local timing
- Morning
- Exposure
- West-facing resort bay
- Entry type
- Sandy bay with reef patches
- Difficulty
- Easy
Anaehoomalu Bay Water Temperature: Common Questions
What is the sea temperature in Anaehoomalu Bay today?
The current sea surface temperature in Anaehoomalu Bay is 28.0°C. Over the last 30 days, the average has been 28.3°C.
When is the water warmest in Anaehoomalu Bay?
The warmest monthly average in the Anaehoomalu Bay archive is September, at around 28.4°C (83.0°F).
When is the water coldest in Anaehoomalu Bay?
The coldest monthly average in the archive is June, at around 27.5°C (81.5°F).
Can you swim in Anaehoomalu Bay today?
At 28.0°C, the water is usually comfortable for swimming and snorkeling.
Full Snorkeling Forecast
See how today's sea temperature, wave height, wind, and tides combine into a detailed snorkeling score for Anaehoomalu Bay.
View Snorkel Forecast →