Month-specific sea-surface temperature · Belize

San Pedro Sea Temperature in March

27.7°C

81.9°F

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

Across 2022–2025, the lowest and highest yearly March monthly means were 27.2–28.1°C. These are not daily extremes.

Previous month

February · 26.7°C

Change into March: +1.0°C

Next month

April · 28.1°C

Change into next month: +0.4°C

Can you swim or snorkel in San Pedro in March?

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 March. Check again close to your trip.

San Pedro 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 26.8°C February 26.7°C March 27.7°C April 28.1°C May 29.3°C June 30.1°C July 29.9°C August 30.5°C September 30.6°C October 29.9°C November 28.3°C December 27.3°C

Data source and limitations

Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature; 2022–2025. Marine model grid near 17.87, -87.98. Based on 3 yearly monthly means and 2232 recorded samples. Source methodology.

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