Smith's Reef Sea Temperature

Updated Sat 17:52 (America/Grand_Turk)

Turks and Caicos · Forecast updated Sep 5, 2026, 17:52 UTC

Current Sea Temperature

30.2°C

86.4°F

Very warm water

Versus this month's average

Close to average

The September average in our archive is 30.2°C (86.3°F).

Recent trend

Holding fairly steady

Seven-day average: 30.0°C, versus 30.0°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 Smith's Reef, monthly averages range from about 29.0°C (84.2°F) in June to 30.2°C (86.3°F) in September.

Over the past 30 days, the average sea temperature in Smith's Reef has been 29.8°C.

Northern Hemisphere. Summer is generally June–August; winter is December–February.

Month	Min	Average	Max
June	28.4°C / 83.1°F	29.0°C / 84.2°F	29.6°C / 85.3°F
July	28.7°C / 83.7°F	29.3°C / 84.8°F	30.1°C / 86.2°F
August	29.2°C / 84.6°F	29.8°C / 85.6°F	30.3°C / 86.5°F
September	29.6°C / 85.3°F	30.2°C / 86.3°F	30.8°C / 87.4°F

Profile calculated from 2329 hourly forecast records across 4 monthly periods. This is a growing archive, not a long-term climate normal.

Shore-accessible reef with turtles, rays and reef fish off Provo.

The current sea surface temperature in Smith's Reef is 30.2°C. Over the last 30 days, the average has been 29.8°C.

The warmest monthly average in the Smith's Reef archive is September, at around 30.2°C (86.3°F).

The coldest monthly average in the archive is June, at around 29.0°C (84.2°F).

At 30.2°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 Smith's Reef.