November weather forecast
San Juan, PR

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An old fort building and a view of the stunning San Juan city, Puerto Rico
An old fort building and a view of the stunning San Juan city, Puerto Rico

Weather in November

November marks the onset of winter in San Juan with a noticeable drop in average high temperatures to 83.1°F (28.4°C). The sea temperature falls to 83.5°F (28.6°C), foreshadowing the end of the beach season. Sunshine hours dwindle to 6.7 per day, the fewest in the year. However, the city retains clarity with unaltered visibility and pressure conditions. All these changes introduce the winter season with a soothing touch, transitioning the cityscape into a calmer phase.

Temperature

San Juan measures an average high-temperature of a still moderately hot 83.1°F (28.4°C) in November, nearly consistent with the preceding month. San Juan's November nights demonstrate minimal variation from the daytime temperatures, with an average of 77.9°F (25.5°C).

Heat index

The heat index value for November is evaluated at a tropical 91.4°F (33°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.

Humidity

In November, the average relative humidity is 78%.

Rainfall

November is the month with the most rainfall. Rain falls for 16.1 days and accumulates 1.57" (40mm) of precipitation.

Ocean temperature

In November, the average ocean temperature is 83.5°F (28.6°C).
Note: Water activities in temperatures ranging from 77°F (25°C) to 84.2°F (29°C) are pleasurable, without feeling uncomfortable even during extended periods.

Daylight

In San Juan, the average length of the day in November is 11h and 16min.
On the first day of November, sunrise is at 6:24 am and sunset at 5:51 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 5:46 pm AST.

Sunshine

In November, the average sunshine is 6.7h.

UV index

The months with the highest UV index are April through November, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: During November, 7 as the daily maximum UV index converts into the following advice:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Warning! The reflection of sand and water increases the UV dose.
Updated: Jul 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in November?

During November, San Juan experiences an average high-temperature of 83.1°F (28.4°C) and a low-temperature of 77.9°F (25.5°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, in November is evaluated at 91.4°F (33°C).

What is the average humidity in November?

The average relative humidity in November is 78%.

What is the rainiest month?

November is the month with the most rainfall. Rain falls for 16.1 days and accumulates 1.57" (40mm) of precipitation.

How many days does it rain in November?

In San Juan, in November, it is raining for 16.1 days, with typically 1.57" (40mm) of accumulated precipitation.

What is the ocean temperature in November?

In November, the average ocean temperature is 83.5°F (28.6°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in November?

In November, the average day length is 11h and 16min.

What time are sunrise and sunset in November?

On the first day of November, sunrise is at 6:24 am and sunset at 5:51 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 5:46 pm AST.

How long on average sun shines in November?

The average sunshine duration in November is 6.7h.

What are the months with the highest UV index?

The months with the highest UV index are April through November, with an average maximum UV index of 7.

What is the UV index intensity in November?

In San Juan, Puerto Rico, the average daily maximum UV index in November is 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.

Average temperature in November
San Juan, PR

Average temperature in November - San Juan, PR
  • Average high temperature in November: 83.1°F

The warmest month (with the highest average high temperature) is August (85.1°F).
The months with the lowest average high temperature are January and March (79.9°F).

  • Average low temperature in November: 77.9°F

The months with the highest average low temperature are August, September and October (79.2°F).
The coldest month (with the lowest average low temperature) is March (73.9°F).

Average pressure in November
San Juan, PR

Average pressure in November - San Juan, PR
  • Average pressure in November: 29.91"Hg

The months with the highest atmospheric pressure are January and February (30.02"Hg).
The month with the lowest atmospheric pressure is October (29.9"Hg).

Average wind speed in November
San Juan, PR

Average wind speed in November - San Juan, PR
  • Average wind speed in November: 7.9mph

The windiest month (with the highest average wind speed) is July (10.7mph).
The calmest month (with the lowest average wind speed) is October (7.4mph).

Average humidity in November
San Juan, PR

Average humidity in November - San Juan, PR
  • Average humidity in November: 78%

The months with the highest relative humidity are May, June and July (79%).
The months with the lowest relative humidity are February and March (76%).

Average rainfall in November
San Juan, PR

Average rainfall in November - San Juan, PR
  • Average rainfall in November: 1.57"

The wettest month (with the highest rainfall) is November (1.57").
The driest month (with the least rainfall) is April (0.55").

Average rainfall days in November
San Juan, PR

Average rainfall days in November - San Juan, PR
  • Average rainfall days in November: 16.1 days

The month with the highest number of rainy days is November (16.1 days).
The month with the least rainy days is June (10.3 days).

Average sea temperature in November
San Juan, PR

Average sea temperature in November - San Juan, PR
  • Average sea temperature in November: 83.5°F

The best month for swimming (with the highest average sea temperature) is September (84.9°F).
The coldest month (with the lowest average sea temperature) is February (78.9°F).

Average daylight in November /
Average sunshine in November
San Juan, PR

Average daylight in November / Average sunshine in November - San Juan, PR
  • Average daylight in November: 11h and 2min

The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 0min).

  • Average sunshine in November: 6h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).

Average sunshine days in November
San Juan, PR

Average sunshine days in November - San Juan, PR
  • Average sunshine days in November: 9.4 days

The month with the most sunshine days is June (13.7 days).
The month with the least sunshine days is November (9.4 days).

Average UV index in November
San Juan, PR

Average UV index in November - San Juan, PR
  • Average UV index in November: 7

The months with the highest UV index are April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March and December (UV index 6).

Average cloud cover in November
San Juan, PR

Average cloud cover in November - San Juan, PR
  • Average cloud cover in November: 34

The month with the most cloud cover is December (Cloud cover 35).
The month with the least cloud cover is September (Cloud cover 26).

Average visibility in November
San Juan, PR

Average visibility in November - San Juan, PR
  • Average visibility in November: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

San Juan, Puerto Rico, USA

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