| < December >
|Normal Max/ High Temperature
|Min/ Low Temperature
|Average Daylight per day
|Sun altitude at solar noon on the 21st day.
- The average temperature in San Juan/ Isla Verde Arp, Pr in December is hot at 25.6 °C (78.08 °F).
- Afternoons can be very hot with average high temperatures reaching 28.8 °C (83.8 °F).
- Overnight temperatures are generally really warm with an average low of 22.4 °C (72.3 °F).
- The variation/ range of daily average temperatures in December is 6.4 °C (11.5 °F).
- The weather in December is hardly dry. Circa 119.9mm (4.7in) of H2O descends.
- The shortest day is 11:00 long and the longest day is 11:04 long with an average length of 11:01.
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Weather Trend Graph for December in San Juan/ Isla Verde Arp, Pr, Usa
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