San Juan
Puerto Rico, USA
Long-term weather forecast
Long-term weather forecast

November weather forecast and climate
San Juan, PR

An old fort building and a view of the stunning San Juan city, Puerto Rico, with a clear view of the calm waterfront
An old fort building and a view of the stunning San Juan city, Puerto Rico, with a clear view of the calm waterfront
November, the last month of the autumn, in San Juan, is also a moderately hot month, with average temperature varying between 77.9°F (25.5°C) and 83.1°F (28.4°C).

Temperature

In San Juan, the average high-temperature in November is essentially the same as in October - a still moderately hot 83.1°F (28.4°C). In November, the average low-temperature is 77.9°F (25.5°C).

Heat index

The average heat index in November is appraised at a hot 91°F (32.8°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'felt air temperature', or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like metabolic differences, pregnancy, clothing, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In November, the average relative humidity is 78%.

Rainfall

The month with the most rainfall in San Juan, Puerto Rico, is November when the rain falls for 16.1 days and typically aggregates up to 1.57" (40mm) of precipitation.

Ocean temperature

In San Juan, the average seawater temperature is 83.5°F (28.6°C).
Note: 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.

Daylight

The average length of the day in November is 11.3h.

Sunshine

In San Juan, the average sunshine is 6.7h.

UV index

April through November, with an average maximum UV index of 7, are months with the highest UV index in San Juan, Puerto Rico. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to the UV radiation for the ordinary person.
Note: The average daily UV index of 7 in November transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in November in San Juan?

In November, the average high-temperature is 83.1°F (28.4°C), and the average low-temperature is 77.9°F (25.5°C). The average heat index (a.k.a. 'feels like', 'real feel'), that combines relative humidity and air temperature, in November is estimated at 91°F (32.8°C).

What is the average humidity in November in San Juan?

In November, the average relative humidity in San Juan, Puerto Rico, is 78%.

How much does it rain in San Juan in November?

In November, in San Juan, Puerto Rico, the rain falls for 16.1 days. Throughout November, 1.57" (40mm) of precipitation is accumulated.

What is the rainiest month in San Juan?

The month with the most rainfall in San Juan, Puerto Rico, is November when the rain falls for 16.1 days and typically aggregates up to 1.57" (40mm) of precipitation.

What is the water temperature in November in San Juan?

In San Juan, Puerto Rico, the average seawater temperature in November is 83.5°F (28.6°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does San Juan have in November?

In San Juan, the average length of the day in November is 11.3h.

How many hours of sunshine does San Juan have in November?

In November, the average sunshine in San Juan is 6.7h.

What are the months with the highest UV index in San Juan?

Months with the highest UV index in San Juan, Puerto Rico, are April through November, with an average maximum UV index of 7.

How high is the UV index in November in San Juan?

In San Juan, Puerto Rico, the average daily maximum UV index in November is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV rays.
Average temperature in November - San Juan, PR
  • Average high temperature in November: 28.4°C

The warmest month (with the highest average high temperature) is August (29.5°C).
Months with the lowest average high temperature are January and March (26.6°C).

  • Average low temperature in November: 25.5°C

Months with the highest average low temperature are August, September and October (26.2°C).
The coldest month (with the lowest average low temperature) is March (23.3°C).

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

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

Average rainfall in November - San Juan, PR
  • Average rainfall in November: 40mm

The wettest month (with the highest rainfall) is November (40mm).
The driest month (with the lowest rainfall) is April (14mm).

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 lowest number of rainy days is June (10.3 days).

Average sea temperature in November - San Juan, PR
  • Average sea temperature in November: 28.6°C

The best month for swimming (with the highest average sea temperature) is September (29.4°C).
Coldest months (with the lowest average sea temperature) are February and March (26.1°C).

Average daylight in November / Average sunshine in November - San Juan, PR
  • Average daylight in November: 11.3h

The month with the longest days is June (Average daylight: 13.2h).
The month with shortest days is December (Average daylight: 11h).

  • Average sunshine in November: 6.7h

The month with most sunshine is June (Average sunshine: 10.9h).
The month with least sunshine is December (Average sunshine: 6.6h).

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

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