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). In San Juan, Puerto Rico, in July, the average water temperature is 83.7°F (28.7°C).
• Fajardo - July »
  In Fajardo, Puerto Rico, in July, it is raining for 19.8 days, with typically 2.6" (66mm) of accumulated precipitation. The average relative humidity in July in Fajardo is 79%.
• Toa Baja - July »
  The months with the highest humidity in Toa Baja are May through July and November, with an average relative humidity of 79%. On the first day of July in Toa Baja sunrise is at 5:52 am and sunset at 7:05 pm.
• Aguadilla - July »
  In Aguadilla in July, it is raining for 20.8 days, with typically 3.35" (85mm) of accumulated precipitation. The average heat index, which represents the influence of relative humidity on air temperature, in July is estimated at 95°F (35°C).
• Vega Baja - July »
  On the first day of July in Vega Baja, Puerto Rico, sunrise is at 5:52 am and sunset at 7:06 pm. In July, in Vega Baja the rain falls for 16.9 days.
• Juana Díaz - July »
  In Juana Díaz during July, the rain falls for 20.7 days and regularly aggregates up to 2.91" (74mm) of precipitation. In July, the average ocean temperature in Juana Díaz is 83.7°F (28.7°C).
• Adjuntas - July »
  On the first day of July in Adjuntas sunrise is at 5:54 am and sunset at 7:07 pm. In Adjuntas, during July, the rain falls for 18.3 days and regularly aggregates up to 2.2" (56mm) of precipitation.
• Cabo Rojo - July »
  In Cabo Rojo, Puerto Rico, in July, during 21.3 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. In Cabo Rojo, in July, during 21.3 rainfall days, 2.56" (65mm) of precipitation is typically accumulated.
• Guánica - July »
  On the first day of July in Guánica sunrise is at 5:55 am and sunset at 7:07 pm. On the first day of July in Guánica sunrise is at 5:55 am and sunset at 7:07 pm.
• Vega Alta - July »
  In Vega Alta during July, the rain falls for 16.8 days and regularly aggregates up to 2.01" (51mm) of precipitation. May through July and November, with an average relative humidity of 79%, are most humid months in Vega Alta.
• Luquillo - July »
  In Luquillo in July, during 19.8 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. The average relative humidity in July in Luquillo is 79%.
• Rincon - July »
  In Rincon during July, the rain falls for 20.8 days and regularly aggregates up to 3.35" (85mm) of precipitation. Populating as the year's zenith for summer, July in Rincon, Puerto Rico, basks in the peak season's weather patterns.