San Juan Weather in July

During July, San Juan experiences very high daytime temperatures of 31°C (88°F) and cooler nights around 25°C (77°F). Expect quite a bit of rainfall. Around 102 mm (4 in) is typical.

Rainfall in San Juan in July

Typically around 19 days of rainfall are expected, averaging 102 mm (4 in) for the month. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.

Temperature in San Juan in July

July in San Juan brings typical temperatures with highs around 31°C (88°F) and lows of 25°C (77°F). For most visitors, the main thing to prepare for is the heat during the day. With lows around 25°C (77°F), the nights are warm enough that a sheet is usually all you need for bedding.

Sunshine in San Juan in July

There are approximately 281 hours of sunshine this month, resulting in mostly clear days.

Wind Speed in San Juan in July

July sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

Average water temperature in July

With water at 28°C (82°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period, it feels comfortable straight away.

July in San Juan has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.