Boca Catalina Sea Temperature

Updated Mon 05:18 (America/Aruba)

Aruba · Forecast updated Aug 10, 2026, 05:18 UTC

Current Sea Temperature

27.2°C

81.0°F

Warm water

Versus this month's average

Close to average

The August average in our archive is 27.2°C (81.0°F).

Recent trend

Holding fairly steady

Seven-day average: 27.2°C, versus 27.0°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 Boca Catalina, monthly averages range from about 26.0°C (78.8°F) in July to 27.2°C (81.0°F) in August.

Over the past 30 days, the average sea temperature in Boca Catalina has been 26.4°C.

Month	Min	Average	Max
June	25.6°C / 78.1°F	26.4°C / 79.6°F	27.2°C / 81.0°F
July	25.1°C / 77.2°F	26.0°C / 78.8°F	27.4°C / 81.3°F
August	26.9°C / 80.4°F	27.2°C / 81.0°F	27.7°C / 81.9°F

Profile calculated from 1694 hourly forecast records across 3 monthly periods. This is a growing archive, not a long-term climate normal.

Calm northwest cove with fish-filled shallows close to shore.

The current sea surface temperature in Boca Catalina is 27.2°C. Over the last 30 days, the average has been 26.4°C.

The warmest monthly average in the Boca Catalina archive is August, at around 27.2°C (81.0°F).

The coldest monthly average in the archive is July, at around 26.0°C (78.8°F).

At 27.2°C, the water is usually comfortable for swimming and snorkeling.

See how today's sea temperature, wave height, wind, and tides combine into a detailed snorkeling score for Boca Catalina.