July weather forecast
Puerto Rico, USA

July in Puerto Rico underscores the peak of summer, as the wet season remains in full effect. Temperatures oscillate between a minimum of about 77°F (25°C) and can reach a sweltering 90°F (32.2°C). This month's warmth, only marginally higher than June, is accentuated by the accompanying high humidity levels.

As has been the trend, northern locales such as San Juan offer a slightly cooler climate compared to the more southern reaches of the island. The Cordillera Central Mountain Range, housing towns like Aibonito and Barranquitas, continues to offer cooler temperatures, providing respite amidst the pervasive summer heat.

Rainfall persists vigorously in July. While the morning hours might begin with clear skies, afternoon showers are a common occurrence, and can often be intense and torrential. Coastal regions, spanning from Mayaguez to Maunabo, experience this combination of pronounced heat and frequent rains, encapsulating the essence of Puerto Rican summers.

July sits within the hurricane season, and while it isn't the peak month for such occurrences, the potential for tropical storms or even hurricanes exists. The island remains vigilant during this time, as the Atlantic basin becomes more active with tropical systems, highlighting the need for preparedness and caution.

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• San Juan - July »
  July continues the summer heat in San Juan with the year's highest average high temperature of 84.2°F (29°C). The months with the highest humidity are May through July, with an average relative humidity of 79%.
• Fajardo - July »
  In Fajardo in July, the average water temperature is 83.7°F (28.7°C). An average temperature of 80.1°F (26.7°C) is logged during the nights of July in Fajardo, a small step down from daytime highs.
• Toa Baja - July »
  On the first day of July in Toa Baja sunrise is at 5:52 am and sunset at 7:05 pm. In Toa Baja in July, it is raining for 16.8 days, with typically 2.01" (51mm) of accumulated precipitation.
• Aguadilla - July »
  In Aguadilla in July, it is raining for 20.8 days, with typically 3.35" (85mm) of accumulated precipitation. In July, the average relative humidity in Aguadilla, Puerto Rico, is 78%.
• Vega Baja - July »
  The months with the highest humidity in Vega Baja are May through July, October and November, with an average relative humidity of 79%. May through July, October and November, with an average relative humidity of 79%, are the most humid months in Vega Baja.
• Juana Díaz - July »
  In Juana Díaz, in July, it is raining for 20.7 days, with typically 2.91" (74mm) of accumulated precipitation. In Juana Díaz, in July, it is raining for 20.7 days, with typically 2.91" (74mm) of accumulated precipitation.
• Adjuntas - July »
  July's arrival in Adjuntas registers an average high-temperature of a hot 86.4°F (30.2°C), closely aligning with the temperature of the previous month. In Adjuntas, in July, during 18.3 rainfall days, 2.2" (56mm) of precipitation is typically accumulated.
• Cabo Rojo - July »
  In Cabo Rojo the average relative humidity in July is 77%. The average relative humidity in July in Cabo Rojo is 77%.
• Guánica - July »
  In Guánica, in July, during 18.3 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. In July, Guánica's weather conditions record an average high-temperature of a hot 86.4°F (30.2°C), demonstrating little divergence from the preceding month.
• Vega Alta - July »
  The months with the highest humidity in Vega Alta are May through July and November, with an average relative humidity of 79%. May through July and November, with an average relative humidity of 79%, are most humid months in Vega Alta, Puerto Rico.
• Luquillo - July »
  In Luquillo, in July, it is raining for 19.8 days, with typically 2.6" (66mm) of accumulated precipitation. In Luquillo, in July, it is raining for 19.8 days, with typically 2.6" (66mm) of accumulated precipitation.
• Rincon - July »
  Populating as the year's zenith for summer, July in Rincon, Puerto Rico, basks in the peak season's weather patterns. In July, the average ocean temperature in Rincon, Puerto Rico, is 83.8°F (28.8°C).