Month-specific sea-surface temperature · Kenya

Watamu Sea Temperature in January

27.7°C

81.9°F

In January, sea-surface temperature near Watamu has a historical monthly average of 27.7°C. This is not the reading for any particular holiday date.

Across 2023–2025, the lowest and highest yearly January monthly means were 27.2–28.3°C. These are not daily extremes.

Previous month

December · 28.7°C

Change into January: -1.0°C

Next month

February · 28.2°C

Change into next month: +0.5°C

Can you swim or snorkel in Watamu in January?

At 27.7°C our temperature-only guide describes the water as 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?

Most people are comfortable in swimwear or a light rash guard.

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 January. Check again close to your trip.

Watamu 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 27.7°C February 28.2°C March 29.3°C April 29.5°C May 28.5°C June 27.6°C July 26.5°C August 26.0°C September 26.5°C October 27.1°C November 28.2°C December 28.7°C

Data source and limitations

Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature; 2023–2025. Marine model grid near -3.36, 40.03. Based on 3 yearly monthly means and 2166 recorded samples. Source methodology.

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