San German Weather in January
January in San German averages 29°C (84°F) during the day and 23°C (73°F) at night. With just 22 mm (0.9 in) of rainfall on average, it doesn't get much drier than this.
Rainfall in San German in January
The month is known for having the least rain of the year. Make the most of the sunshine and clear skies. Rain is expected on roughly 19 days, totalling around 22 mm (0.9 in) for the month. Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.
Temperature in San German in January
January 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. Overall, the month follows a fairly predictable daily temperature pattern. With lows of 23°C (73°F), the nights are warm and generally comfortable.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, April and December typically offer the best weather 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 January
Min Temperature
23°C (73°F)
Max Temperature
29°C (84°F)
Chance of Rain
63%
Precipitation
22 mm (0.9 in)
Rainy days
19 days
Daily Historical Temperatures
50-year average (1977-2026)
Based on our historical records, temperatures in San German typically stay consistent throughout January, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 20°C (68°F).
Average temperatures in January
Historical weather for San German in January
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 January
Based on 25 years of weather observations (2000-2025), these are the most extreme conditions recorded in San German.
- The hottest January day on record in San German reached 33°C (91°F) (January 1, 2001).
- The lowest daytime temperature in January was 25°C (77°F), recorded on January 31, 2021.
- Nighttime temperatures dropped to 13°C (55°F) on January 20, 2000, marking the coldest January night on record.
Best Places in Puerto Rico in January
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 January →
perfect weather
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What to Wear in San German in January
Warm but pleasant conditions in San German in January. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Light rain is possible, so consider bringing a small umbrella or rain jacket.What To Do in San German in January
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.
