Equatorial Guinea — Sea Water Temperature and Annual Ranges
Up-to-date sea water temperatures for the coasts of Equatorial Guinea. 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
Equatorial Guinea sits on the Gulf of Guinea and its coastal and island waters are warm year-round. Sea surface temperatures typically range from about 24 to 29 °C (75 to 84 °F), with the warmest conditions often recorded in the late dry season and early rainy season and the coolest water occurring during periods of coastal upwelling in the mid-year months. Mainland beaches near Bata and the island of Bioko experience only modest seasonal swings — most of the year you can expect water around 26–29 °C (79–84 °F) — while some offshore and southern island sites such as Annobón may be slightly cooler at times, dropping toward the mid-20s Celsius (about 75–78 °F). Surface temperatures are fairly stable because of the country’s equatorial position, so the sea rarely feels chilly.
Swimming Conditions
Swimming is generally allowed and popular at resort beaches and sheltered bays, since the water is warm enough for comfortable bathing throughout the year. However, visitors should take normal precautions: some coastal areas have strong currents, variable surf and limited lifeguard services, and near ports or river mouths water quality can be degraded after heavy rains. Rainy season conditions (rougher seas and reduced visibility) from roughly April to October can affect safety and snorkeling suitability, while the relatively calmer drier months are better for water activities. Local guidance on tides, weather and confined marine hazards should be followed, and basic safety gear and awareness are recommended for anyone venturing into Equatorial Guinea’s coastal waters.