San German Weather in December
December in San German averages 29°C (84°F) during the day and 23°C (73°F) at night. The perfect conditions and low rainfall make it a solid month to visit.
Rainfall in San German in December
Rain is expected on roughly 20 days, totalling around 29 mm (1.1 in) for the month. With rain spread across many days but low totals, showers are typically short and light rather than heavy.
Temperature in San German in December
December tends to be one of the perfect months in San German, with 29°C (84°F) in the afternoon and 23°C (73°F) overnight. This kind of day-to-night contrast is typical for this time of year. With overnight lows of 23°C (73°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.If your ideal day consists of dry skies and pleasant temperatures, January, February, March, April and December typically offer the best circumstances for San German.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Puerto Rico, check out our San German's climate page.
San German Temperature in December
Min Temperature
23°C (73°F)
Max Temperature
29°C (84°F)
Chance of Rain
66%
Precipitation
29 mm (1.1 in)
Rainy days
20 days
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in San German typically stay consistent throughout December, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 21°C (70°F).
Average temperatures in December
Historical weather for San German in December
Browse day-by-day weather records for San German spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San German historical weather extremes in December
The extremes listed below come from historical weather data collected in San German from 1997 through 2025.
- The hottest December day on record in San German reached 34°C (93°F) (December 24, 2002).
- On December 22, 2023, San German saw its coldest December day with temperatures maxing out at 24°C (75°F).
- Nighttime temperatures dropped to 16°C (61°F) on December 18, 2008, marking the coldest December night on record.
Best Places in Puerto Rico in December
Find out more about the weather in Puerto Rico and which places have the best travel conditions in this month. See all of Puerto Rico in December →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in San German in December
Warm temperatures in December make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Pack a light rain jacket or compact umbrella for occasional showers.What To Do in San German in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Puerto Rico, check out our San German's climate page.
See the full San German climate overview or explore weather in Puerto Rico.
