October weather forecast
Puerto Rico, USA

October in Puerto Rico brings a gradual transition as the island starts to inch away from the peak of its wet season. The month experiences temperatures that sway between lows of approximately 76°F (24.4°C) and highs that might climb up to 89°F (31.7°C). Although still warm, there's a subtle dip from the zenith of summer heat experienced in September.

The dichotomy between the northern and southern parts persists, with areas like San Juan, Guaynabo, and Carolina being a shade cooler than their southern counterparts. High-altitude towns within the Cordillera Central Mountain Range, such as Corozal and Aibonito, continue to offer relatively cooler spots, though the contrast with coastal temperatures becomes less prominent as the year progresses.

October's rainfall is noteworthy. Although the trend of clearer mornings followed by afternoon showers remains, the intensity and frequency begin to diminish, hinting at the impending dry season. Coastal regions, encompassing towns from Isabela to Humacao, navigate this transitional phase, experiencing fewer downpours but retaining the moist ambiance.

While October is still part of the hurricane season, the threat starts to decrease. Nonetheless, the remnants of the active September can still influence October's weather, with the possibility of tropical storms or even late-season hurricanes. Preparedness remains essential, even though the peak of the season has passed, as Mother Nature occasionally defies patterns and predictions.

---

• San Juan - October »
  In October, the average ocean temperature is 84.4°F (29.1°C). October in San Juan observes a change in weather patterns as temperatures begin to cool modestly.
• Fajardo - October »
  On the first day of October in Fajardo sunrise is at 6:13 am and sunset at 6:11 pm. The advent of October in Fajardo brings an average high-temperature of a still warm 83.8°F (28.8°C), exhibiting minor difference from the previous month.
• Toa Baja - October »
  On the first day of October in Toa Baja sunrise is at 6:15 am and sunset at 6:13 pm. In Toa Baja, Puerto Rico, in October, during 24 rainfall days, 3.82" (97mm) of precipitation is typically accumulated.
• Aguadilla - October »
  In Aguadilla, Puerto Rico, during October, the rain falls for 22.2 days and regularly aggregates up to 3.62" (92mm) of precipitation. In Aguadilla during October, the rain falls for 22.2 days and regularly aggregates up to 3.62" (92mm) of precipitation.
• Vega Baja - October »
  The months with the highest humidity in Vega Baja are May through July, October and November, with an average relative humidity of 79%. The months with the highest humidity in Vega Baja are May through July, October and November, with an average relative humidity of 79%.
• Juana Díaz - October »
  October, the same as September, is a moderately hot autumn month in Juana Díaz with an average temperature ranging between max 84.7°F (29.3°C) and min 75.9°F (24.4°C). On the first day of October in Juana Díaz sunrise is at 6:16 am and sunset at 6:15 pm.
• Adjuntas - October »
  In Adjuntas, snow does not fall in January through August, October through December. In Adjuntas, snow does not fall in January through August, October through December.
• Cabo Rojo - October »
  In Cabo Rojo, Puerto Rico, during October, the rain falls for 22.3 days and regularly aggregates up to 3.03" (77mm) of precipitation. In Cabo Rojo, during October, the rain falls for 22.3 days and regularly aggregates up to 3.03" (77mm) of precipitation.
• Guánica - October »
  In October, the average ocean temperature in Guánica is 84.6°F (29.2°C). The months with the highest UV index in Guánica, Puerto Rico, are April through October, with an average maximum UV index of 7.
• Vega Alta - October »
  The month with the most rainfall in Vega Alta, Puerto Rico, is October, when the rain falls for 24 days and typically aggregates up to 3.82" (97mm) of precipitation. In Vega Alta, Puerto Rico, during October, the rain falls for 24 days and regularly aggregates up to 3.82" (97mm) of precipitation.
• Luquillo - October »
  On the first day of October in Luquillo, Puerto Rico, sunrise is at 6:13 am and sunset at 6:11 pm. Luquillo records a mild decrease in temperature during the nights of October, averaging a still moderately hot 80.8°F (27.1°C).
• Rincon - October »
  In October, in Rincon the rain falls for 22.2 days. In Rincon, Puerto Rico, the average seawater temperature in October is 84.6°F (29.2°C).