Lanikai Beach Sea Temperature
Updated Wed 19:54 (Pacific/Honolulu)
USA · Forecast updated Aug 12, 2026, 19:54 UTC
Current Sea Temperature
26.4°C
79.5°F
Warm water
Versus this month's average
Close to average
The August average in our archive is 26.3°C (79.4°F).
Recent trend
Holding fairly steady
Seven-day average: 26.4°C, versus 26.2°C in the prior seven days.
What to wear
Warm water
Most people are comfortable in swimwear or a light rash guard.
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 Lanikai Beach, monthly averages range from about 26.1°C (79.0°F) in July to 26.3°C (79.3°F) in June.
Over the past 30 days, the average sea temperature in Lanikai Beach has been 26.2°C.
Monthly Water Temperature Averages
Northern Hemisphere. Summer is generally June–August; winter is December–February.
| Month | Min | Average | Max |
|---|---|---|---|
| June | 26.1°C / 79.0°F | 26.3°C / 79.3°F | 26.5°C / 79.7°F |
| July | 25.7°C / 78.3°F | 26.1°C / 79.0°F | 26.6°C / 79.9°F |
| August | 25.8°C / 78.4°F | 26.3°C / 79.4°F | 26.6°C / 79.9°F |
Profile calculated from 1160 hourly forecast records across 3 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Lanikai Beach
Windward beach with pretty water and patchy reef; best before trade winds build.
- Area
- Kailua
- Local timing
- Morning before trades
- Exposure
- Windward east shore
- Entry type
- Sandy beach and patch reef
- Difficulty
- Easy
Lanikai Beach Water Temperature: Common Questions
What is the sea temperature in Lanikai Beach today?
The current sea surface temperature in Lanikai Beach is 26.4°C. Over the last 30 days, the average has been 26.2°C.
When is the water warmest in Lanikai Beach?
The warmest monthly average in the Lanikai Beach archive is June, at around 26.3°C (79.3°F).
When is the water coldest in Lanikai Beach?
The coldest monthly average in the archive is July, at around 26.1°C (79.0°F).
Can you swim in Lanikai Beach today?
At 26.4°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 Lanikai Beach.
View Snorkel Forecast →