March weather forecast
Puerto Rico, USA

March ushers in a transition phase for Puerto Rico, as the island gradually shifts from the dry to the onset of the wet season. The month experiences temperatures ranging from 73°F (22.8°C) on the cooler side to a slightly increased high of 86°F (30°C), consistent with the incremental warming trend observed from January.

Cities like San Juan in the north, given their geographical location, tend to be marginally cooler. Yet, it's the regions within the Cordillera Central Mountain Range, particularly towns like Aibonito and Ciales, that exhibit a more pronounced coolness due to their elevated nature.

When juxtaposed with February, March witnesses a slight intensification in warmth. Furthermore, the frequency of rainfall begins to pick up, especially as the month progresses. As the island moves towards April, sporadic rainfall becomes more commonplace, indicating the approaching wet season. Nevertheless, coastal regions, encompassing areas like Aguadilla and Fajardo, maintain their warmth, offering a balmy respite before the onset of the consistently hotter and more humid months ahead.

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• San Juan - March »
  The months with the coldest seawater in San Juan are February and March, with an average ocean temperature of 79°F (26.1°C). January through March and December, with an average maximum UV index of 6, are months with the lowest UV index in San Juan, Puerto Rico.
• Fajardo - March »
  The months with the highest UV index in Fajardo are January, March through December, with an average maximum UV index of 7. In Fajardo in March, it is raining for 14.3 days, with typically 1.14" (29mm) of accumulated precipitation.
• Toa Baja - March »
  In Toa Baja in March, it is raining for 17 days, with typically 2.01" (51mm) of accumulated precipitation. As spring approaches, March in Toa Baja carries forward the mild and enjoyable weather from February.
• Aguadilla - March »
  In Aguadilla during March, the rain falls for 17.7 days and regularly aggregates up to 1.81" (46mm) of precipitation. The least humid month in Aguadilla is March, with an average relative humidity of 75%.
• Vega Baja - March »
  In Vega Baja the lowest temperatures are generally noted in March, averaging a high of 80.2°F (26.8°C) and a low of 72.5°F (22.5°C). On the first day of March in Vega Baja sunrise is at 6:44 am and sunset at 6:31 pm.
• Juana Díaz - March »
  The least humid month in Juana Díaz is March, with an average relative humidity of 76%. In Juana Díaz the average seawater temperature in March is 79.3°F (26.3°C).
• Adjuntas - March »
  The months with the lowest UV index in Adjuntas are January through March, November and December, with an average maximum UV index of 6. In Adjuntas, during March, the rain falls for 18.4 days and regularly aggregates up to 1.46" (37mm) of precipitation.
• Cabo Rojo - March »
  On the last day of March, in Cabo Rojo sunrise is at 6:23 am and sunset at 6:41 pm AST. The least humid month in Cabo Rojo is March, with an average relative humidity of 74%.
• Guánica - March »
  In Guánica, Puerto Rico, in March, during 18.4 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. The months with the lowest UV index in Guánica are January through March, November and December, with an average maximum UV index of 6.
• Vega Alta - March »
  The least humid month in Vega Alta is March, with an average relative humidity of 76%. The weather in Vega Alta during March continues to change gradually, bringing a subtle decrease in humidity compared to the previous month.
• Luquillo - March »
  March is the coldest month in Luquillo, Puerto Rico, with the temperature often reaching an average high of 79°F (26.1°C) and an average low of 75.7°F (24.3°C). On the last day of March, in Luquillo sunrise is at 6:17 am and sunset at 6:36 pm AST.
• Rincon - March »
  In Rincon during March, the rain falls for 17.7 days and regularly aggregates up to 1.81" (46mm) of precipitation. March is the coldest month in Rincon, exhibiting average temperatures of 80.2°F (26.8°C) at the peak and 74.3°F (23.5°C) at the base.