San Juan, Puerto Rico, experiences typical tropical weather in July, characterized by high temperatures, humidity, and a chance of rain. Average daily highs hover around 90F (32C), while lows rarely dip below 80F (27C). The ocean temperature remains warm, averaging around 82F (28C), making it ideal for swimming and water sports. Rainfall, although possible, typically occurs in short, intense bursts, often followed by sunshine. Trade winds provide some relief from the heat and humidity.
Understanding the prevailing climatic conditions during this period is crucial for visitors planning trips to San Juan. This knowledge allows for appropriate packing, activity planning, and potential contingency measures in case of rain. Historically, July falls within the Atlantic hurricane season, although direct hurricane strikes on Puerto Rico are relatively infrequent. Awareness of potential tropical storm activity is important for travelers during this time.