San Juan Weather in October

San Juan in October sees high temperatures, with highs around 30°C (86°F) and overnight lows of 26°C (79°F). Rainfall is fairly high at around 133 mm (5.2 in) on average, so pack waterproofs just in case.

Rainfall in San Juan in October

Historically, approximately 21 days this month are expected to have rain, averaging 133 mm (5.2 in). This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.

Temperature in San Juan in October

In October, expect high temperatures in San Juan, with highs of 30°C (86°F) and lows of 26°C (79°F) at night. Overall, the month follows a fairly predictable daily temperature pattern. Nights are warm at 26°C (79°F). It's worth making sure your accommodation has decent ventilation or air conditioning.

Sunshine in San Juan in October

The month enjoys around 206 hours of sunshine, creating mostly sunny days with good weather conditions.

Average water temperature in October

At 28°C (82°F), the water is warm and comfortable for swimming. Most people find this temperature ideal for spending longer periods in the water.

If you're looking for dry conditions and comfortable temperatures, October may not be the ideal month to visit San Juan. Our weather planner can help you explore destinations with more pleasant weather conditions.