Puerto Rico and San JuanAs a start, more information on Puerto Rico can be found at ToPuertoRico or Wikipedia. Specific informantion on San Juan can also be found from ToPuertoRico or Wikipedia.
A few relevant facts:
- Temperature in San Juan, Puerto Rico, in December typically varies between 22ºC and 28ºC (72º to 84ºF).
- Humidity stays at about 80% all year long.
- Rainfall is still substantial in December, after the rainy season between May and November.
- The average sea temperature in December is 27ºC (80ºF)!