When to go · San Juan
San Juan in December
Great month. Dry, warm; long Christmas season and higher prices.
Key facts
- Verdict
- Great
- Temperature
- 30°C (86°F)86°F (30°C) / 23°C (73°F)73°F (23°C)
- average high / low
- Rain days
- 17
- Crowds
- High
- Puerto Rico overall
- Prices
- High
- Puerto Rico overall
Verdict
Dry, warm; long Christmas season and higher prices.
All twelve months in one grid — weather, crowds and prices, with gaps left as unknown.
Is another month better than December?
No other month rates higher than December for San Juan in this guide.
Weather in December
- San JuanHighs around 30 °C (86 °F), lows around 23 °C (73 °F), rain on about 17 daysHighs around 86 °F (30 °C), lows around 73 °F (23 °C), rain on about 17 days
- San Juan and north coast, Puerto Rico · San Juan, Isabela, Arecibobest weather
Around 27–31 °C (81–88 °F) all year; showers are short but frequent May–November; winter swells make some north-coast beaches rough.Around 81–88 °F (27–31 °C) all year; showers are short but frequent May–November; winter swells make some north-coast beaches rough.
Dry season season
Warm and comfortable; long beach days and the Christmas season.
Watch: Peak prices and cruise crowds.
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Christmas season
From Thanksgiving to mid-January · Whole island
Music, lights, food and family parties; busy roads and higher prices.
Cruise season
Winter peak · Old San Juan
Up to several ships a day; go to the forts before 10:00.
Christmas big impact
25 Dec · Puerto Rico
Part of a season running into January.
Crowds and prices
- Crowds · Puerto Rico overall
- High
- Prices · Puerto Rico overall
- High
Puerto Rico overall: Christmas season with parrandas; high prices.
High-price month: see what to book ahead.
Compare two months
Weather, crowds and prices for any two months in San Juan, side by side.
Verdict
Dec: Great
Jan: Great
Daytime high
Dec: 30 °C (86 °F)86 °F (30 °C)
Jan: 29 °C (84 °F)84 °F (29 °C)
Night low
Dec: 23 °C (73 °F)73 °F (23 °C)
Jan: 22 °C (72 °F)72 °F (22 °C)
Rain days
Dec: 17
Jan: 15 (better)
Crowds
Dec: High
Jan: High
Prices
Dec: High
Jan: High
Festivals listed
Dec: 3
Jan: 5
December: Dry, warm; long Christmas season and higher prices.
January: Dry, warm; Three Kings Day and Calle San Sebastián fiesta.
San Juan: figures are long-term averages from this guide, not a forecast.
What to pack
- Light, breathable clothes, a sun hat and sunscreen
- A rain jacket or umbrella and shoes that dry fast