San Juan Weather in January

January is one of the excellent months to visit San Juan, with daytime temperatures of 28°C (82°F) and lows of 22°C (72°F) at night. Some rainfall is typical for this time of year.

Rainfall in San Juan in January

Past climate data indicates that roughly 20 days will see rain, totalling around 55 mm (2.2 in) for the month. Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.

Temperature in San Juan in January

January is a excellent month in San Juan, with 28°C (82°F) during the day and 22°C (72°F) at night. This kind of day-to-night contrast is typical for this time of year. Nights remain mild at 22°C (72°F), making evenings a pleasant time to be outdoors. This coolest month of the year still offers plenty of warmth and comfortable days.

Sunshine in San Juan in January

With approximately 238 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

Wind Speed in San Juan in January

January has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.

Average water temperature in January

The water temperature is 26°C (79°F), which most people find very comfortable. A good month for swimming and water sports.

If you're a fan of comfortable temperatures and drier conditions, January is a great time to visit.