Sea Temperature

San Juan del Sur Sea Temperature

(Today) Oct 2018

27.8°C / 82°F

Current weather

25°C / 78°F
(light rain)

Partly cloudy

12 mph



The measurements for the water temperature in San Juan del Sur, Rivas are provided by the daily satellite readings provided by the NOAA. The temperatures given are the sea surface temperature (SST) which is most relevant to recreational users.

Monthly average max / min water temperatures

The graph below shows the range of monthly San Juan del Sur water temperature derived from many years of historical sea surface temperature data.

Maximum and minimum monthly sea temperatures in San Juan del Sur
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 25.2 25.7 25.8 26.8 28.1 28 27.9 28.4 28.1 27.2 26 26.6
Max °C 28.7 27.8 29.4 29.6 29.9 30 29.8 30.1 30.1 29.3 29.4 28.7
Min °F 78.7 79.1 79.9 81.4 83.3 83.2 82.9 83.8 83.4 81.8 80.2 80.7
Max °F 82.2 81.2 83.5 84.2 85.1 85.2 84.8 85.5 85.4 83.9 83.6 82.8

7 day tide forecast for San Juan del Sur

  • High 01:41am
  • Low 07:49am
  • High 02:03pm
  • Low 08:01pm
  • High 02:18am
  • Low 08:28am
  • High 02:41pm
  • Low 08:38pm
  • High 02:55am
  • Low 09:05am
  • High 03:19pm
  • Low 09:15pm
  • High 03:32am
  • Low 09:43am
  • High 03:58pm
  • Low 09:54pm
  • High 04:11am
  • Low 10:23am
  • High 04:38pm
  • Low 10:35pm
  • High 04:52am
  • Low 11:05am
  • High 05:21pm
  • Low 11:18pm
  • High 05:36am
  • Low 11:50am
  • High 06:08pm

*These tide times are estimates based on the nearest port (Puntarenas, Costa Rica) and may differ by up to half and hour depending on distance. Please note, the tide times given are not suitable for navigational purposes.

Average October sea temperatures

  • Max: 29.3°C / 84.7°F
  • Avg: 28.2°C / 82.8°F
  • Min: 27.2°C / 80.9°F
San Juan del Sur average sea temperature chart

These average ocean temperatures for San Juan del Sur are calculated from several years of archived data.

Map showing location of San Juan del Sur (11.252920, -85.870490)


Whilst sea temperatures for San Juan del Sur are as accurate as current data allows, there may be slight local and regional variations depending on conditions. Time of day and wind direction may have a temporary local effect as can water flows from neraby rivers.

Alternate names for San Juan del Sur
San Juan del Sur

San Juan del Sur average sea temperature chart