San German Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit San German.
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Climate overview of San German
San Germán, Puerto Rico, is a historic town known for its colonial architecture and cultural heritage. It maintains a fairly consistent, warm average temperature and experiences moderate precipitation throughout the year. Now, let’s explore all the climate details to give you a complete picture.
San German Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in San German - and find the best time to visit.
Monthly Temperature in San German
With minimal seasonal shifts, San German experiences a constant climate year-round. Typically, average maximum daytime temperatures range from a very warm 31°C (88°F) in July to a comfortable 29°C (84°F) in the coolest month, February.
Nights vary from 25°C (77°F) in July to around 22°C (72°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in San German
Generally, San German receives mid-range precipitation levels, with 815 mm (32 in) annually. The climate in San German shows significant variation throughout the year. Expect high rainfall in September, the wettest month, with an average of 131 mm (5.2 in) of precipitation over 17 rainy days.
In contrast, the driest month January offers drier and sunnier days, with around 22 mm (0.9 in) of rainfall over 19 rainy days. For more details, please visit our San German Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit San German
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: January, February, March, April and December
- Warmest weather: May, June, July, August, September, October and November
- Fewer rainy days: February, March, April, May and June
- Wettest months: August, September, October and November, when rainfall is highest.
- Seasonal pattern: A distinct dry season from December to February
Frequently asked questions about the climate in San German
What is the best time to visit San German?
January, February, March, April and December typically offer the most optimal weather in San German. In contrast, September and October tend to have less optimal conditions. San German has a distinct dry season from December to February.
What temperatures can I expect in San German?
Daytime highs range from 29°C (84°F) in February to 31°C (88°F) in July. Nighttime lows range from 22°C (72°F) to 25°C (77°F). Temperatures stay relatively stable year-round.
How much rain does San German get?
Annual rainfall is around 815 mm (32 in). September is the wettest month with 131 mm (5.2 in), while January is the driest with 22 mm (0.9 in).
San German 3-Day Forecast
San German on the map
San German is highlighted - select any city to see its climate.
Popular in September
Where to go in September - average daytime high across popular destinations.
San Juan
31°C (88°F) Fajardo30°C (86°F) Luquillo30°C (86°F) Aguada
30°C (86°F) Rincon30°C (86°F) Rio Grande31°C (88°F) Culebra30°C (86°F) Vieques30°C (86°F) 
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