Pitcairn — Sea Water Temperature and Annual Ranges
Up-to-date sea water temperatures for the coasts of Pitcairn. Learn about today’s conditions, monthly averages, and how the surrounding seas and oceans vary by season. We find every place where you can swim and show you the water temperature there today and throughout the year.
Sea Water Temperature Along the Coast
Chart of Average Temperature Changes Over the Last 60 Days
Places with the Warmest Sea Water Today
The Most Popular Seaside Places
Coastal Seas and Oceans
Water Temperature and Swimming Overview
Regions and Map
Water Temperature Trends
Pitcairn Island lies in the subtropical South Pacific, and the surrounding sea is generally warm enough for swimming throughout the year. Sea surface temperatures typically range from about 21–24 °C (70–75 °F) in the Austral winter (June–August) to roughly 26–29 °C (79–84 °F) in the peak of summer (December–February). Spring and autumn months usually sit between about 24–26 °C (75–79 °F). These temperatures make the water comfortable for most swimmers and snorkelers, with the warmest conditions from late spring through early autumn in the Southern Hemisphere.
Swimming Conditions
Swimming around Pitcairn is permitted, and many visitors swim or snorkel to explore the rich marine environment, but opportunities are shaped by the island’s rugged coastline and limited sheltered beaches. Much of the shoreline is rocky and access is by boat or steep paths, so safe entry points are confined to a few coves and landing sites. Conditions can be influenced by wind, swell and currents, so local guidance is recommended before entering the water. The area is part of a protected maritime zone, which encourages snorkeling and diving while restricting extractive activities; this protection helps maintain healthy coral and fish populations, enhancing recreational encounters. In short, the sea temperatures are inviting year-round, but practical considerations of access, sea state and conservation rules determine where and when swimming is advisable.