Ko Olina Sea Water Temperature
A tropical beach on the Coastal Waters, warmest around September at about 27°C. Today's reading, 7-day forecast, and monthly averages below.
Ko Olina water temperature
Ideal swimming conditions. Feels soothing and warm, perfect for hours in the water without getting cold.
7-Day Water Temperature Forecast
Ko Olina Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Ko Olina occurs inJanuary, February, March, April, May, June, July, August, September, October, November, December — peaking at27°C (80.6°F) in September.
Year-Round Water Temperature Curve (°C / °F)
Hover a bar for detailsFull 12-month data table — min / avg / max & swimming comfort
| Month | Min Water Temp | Average Water Temp | Max Water Temp | Swimming Comfort |
|---|---|---|---|---|
| January | 23.5°C | 24.6°C | 25.8°C | Warm & Ideal (24°C – 28°C) |
| February | 23.4°C | 24.4°C | 25.6°C | Warm & Ideal (24°C – 28°C) |
| March | 23°C | 24.3°C | 25.5°C | Warm & Ideal (24°C – 28°C) |
| April | 23.6°C | 24.6°C | 25.3°C | Warm & Ideal (24°C – 28°C) |
| May | 24.6°C | 25.5°C | 26.9°C | Warm & Ideal (24°C – 28°C) |
| June | 24.7°C | 25.9°C | 26.7°C | Warm & Ideal (24°C – 28°C) |
| July | 25.2°C | 26.3°C | 27.6°C | Warm & Ideal (24°C – 28°C) |
| August | 25.1°C | 26.5°C | 27.7°C | Warm & Ideal (24°C – 28°C) |
| SeptemberCurrent | 25.5°C | 27°C | 28.8°C | Warm & Ideal (24°C – 28°C) |
| October | 25.4°C | 26.9°C | 27.9°C | Warm & Ideal (24°C – 28°C) |
| November | 24.8°C | 26.3°C | 27.6°C | Warm & Ideal (24°C – 28°C) |
| December | 24°C | 25.3°C | 26.6°C | Warm & Ideal (24°C – 28°C) |
Swimming FAQs for Ko Olina
Is the sea warm enough to swim in Ko Olina today?
Typical sea surface temperature in Ko Olina this time of year is 27°C (80.6°F) — classified as Warm & Ideal (24°C – 28°C). Ideal swimming conditions. Feels soothing and warm, perfect for hours in the water without getting cold. Live readings load automatically.
What are the warmest months for swimming in Ko Olina?
The highest water temperatures in Ko Olina typically occur duringJanuary, February, March, April, May, June, July, August, September, October, November, December, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Ko Olina in September?
Historically in September, water temperatures in Ko Olina average around27°C (80.6°F), fluctuating between a recorded minimum of 25.5°C and a maximum of 28.8°C.