Temperature in Puerto Rico in December

Daytime highs, nighttime lows and the warmest cities across Puerto Rico this December.

Puerto Rico, experiences high average maximum daytime temperatures in December, ranging from 26°C (79°F) in Adjuntas to 29°C (84°F) in San German. Nighttime temperatures generally drop to 23°C (73°F) in San German and 20°C (68°F) in Adjuntas.

What is the temperature of the different cities in Puerto Rico in December?

Find the average daytime temperatures in December for the most popular destinations in Puerto Rico on the map below. Click on a destination dot for more detailed information.

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For a detailed overview over the year and the best time to visit Puerto Rico, check out our Puerto Rico's climate page.

See also: the Puerto Rico weather by month.

Best Places to Visit in Puerto Rico in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Puerto Rico.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in December: blue is cold, red is hot.

See all December weather averages, cities and regions in Puerto Rico

Puerto Rico temperatures in December: frequently asked questions

How hot does it get in Puerto Rico in December?

Expect daytime temperatures around 29°C (84°F) in San Juan. That makes December a high month for Puerto Rico.

How cold does it get at night in Puerto Rico in December?

San Juan sees nighttime lows close to 23°C (73°F) in December.

What is the warmest city in December in Puerto Rico?

Data insights from our comprehensive database indicate that San German is the city with the highest warmth. Daytime peaks average near 29°C (84°F), while the nights are characterized by a low temperature close to 23°C (73°F).

What is the coldest city in December in Puerto Rico?

According to our data, Adjuntas holds the title for the coldest city in Puerto Rico in December. It experiences maximum temperatures of approximately 26°C (79°F) and drops to lows of about 20°C (68°F) during the night.

How much sun does Puerto Rico get in December?

San Juan enjoys close to 216 hours of sunlight. This not only brightens the days but also uplifts the atmosphere during the month.

What is the water temperature in December?

The water temperature averages approximately 27°C (81°F) in San Juan this month, a perfect temperature for swimming and cooling off.

Interested in more climate information?

We have much more information about the climate in Puerto Rico.

Weather and climate has detailed information for every country in the world. Are you going to Puerto Rico? Get detailed historical weather averages for many cities in Puerto Rico.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.