Solomon Islands — Sea Water Temperature and Annual Ranges
Up-to-date sea water temperatures for the coasts of Solomon Islands. 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
The Solomon Islands enjoy warm coastal waters year-round, with sea surface temperatures generally ranging from about 26 to 30 °C (79 to 86 °F). Seasonal variation is modest: the coolest months tend to be in the southern-hemisphere winter around July and August when coastal readings commonly fall to near 26 °C (79 °F), while the warmest period is usually in late summer and early autumn, roughly February to April, when temperatures often rise to 29–30 °C (84–86 °F). Local conditions such as depth, current, tidal flow and freshwater runoff after heavy rains can produce small, short-term differences in temperature between sheltered lagoons and exposed outer reefs, but overall the coastline remains comfortably warm for bathing throughout the year.
Swimming Conditions
Swimming is widely permitted and popular along many beaches, reef lagoons and around resort areas because the water is pleasantly warm and visibility can be excellent for snorkeling and diving. That said, swimmers should exercise caution: strong currents, tidal surges and boat traffic can be hazardous in some spots, and coral, sea urchins and occasional jellyfish present typical tropical risks. The wet season from November to April brings more rain, runoff and occasional storms that can reduce visibility and increase currents, so many visitors prefer the drier months of May to October for calmer water and slightly cooler air. For most recreational swimmers and snorkelers a wetsuit is unnecessary, though divers on longer or deeper dives often wear a thin 2–3 mm suit for comfort. Overall, the coastal seas of the Solomon Islands are inviting for swimming year-round when local conditions and safety advisories are observed.