Month-specific sea-surface temperature · Cayman Islands

Little Cayman Sea Temperature in June

29.7°C

85.5°F

In June, sea-surface temperature near Little Cayman has a historical monthly average of 29.7°C. This is not the reading for any particular holiday date.

Across 2023–2025, the lowest and highest yearly June monthly means were 29.6–29.7°C. These are not daily extremes.

Previous month

May · 29.1°C

Change into June: +0.6°C

Next month

July · 30.2°C

Change into next month: +0.5°C

Can you swim or snorkel in Little Cayman in June?

At 29.7°C our temperature-only guide describes the water as very warm water. Comfort depends on your cold tolerance, immersion time and wind. A historical average cannot determine whether conditions are safe on any given day.

Do you need a wetsuit?

Swimwear is usually enough; a rash guard adds sun protection.

Which beach should you choose?

Look for a beach sheltered from the actual forecast waves and wind on your visit. Exposure, currents and entry conditions vary even where water temperatures are similar. Follow local warnings.

Check the current waves, wind and snorkeling forecast →

A live forecast does not predict a future June. Check again close to your trip.

Nearby places in June

Comparable historical averages from independent marine grid cells. Warmer water does not imply safe snorkeling.

Grand Cayman 29.7°C

Little Cayman Sea Temperature: All 12 Months

Choose a month for available historical evidence, month comparisons and swim guidance. Missing history is clearly marked and never presented as a long-term normal.

January 27.3°C February 27.0°C March 27.4°C April 27.9°C May 29.1°C June 29.7°C July 30.2°C August 30.9°C September 31.0°C October 30.5°C November 29.2°C December 28.3°C

Data source and limitations

Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature; 2023–2025. Marine model grid near 19.69, -80.07. Based on 3 yearly monthly means and 2160 recorded samples. Source methodology.

Modelled sea-surface temperatures do not establish underwater visibility, wildlife, calm currents or safe entry.