November weather forecastSan Juan, PR
November
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
The commencement of November brings an average high-temperature of a still warm 83.1°F (28.4°C), marking an inconsequential divergence from October. San Juan's nocturnal readings in November exhibit minimal variation from the daytime temperatures, averaging at a still moderately hot 77.9°F (25.5°C).Heat index
November's average heat index is estimated at a hot 91.4°F (33°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.It is emphasized that the heat index's values are meant for shaded zones with mild winds. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
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: For swimming, diving, or other water activities, the temperature range of 77°F (25°C) to 84.2°F (29°C) is perceived as exceptionally enjoyable and comfortable even for prolonged 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 in San Juan 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 health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 7 during November leads to these instructions:
Ward off overexposure. Defence against solar harm is crucial. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Heads up! The reflection of sand and water notably intensifies UV rays from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 11h and 18min
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 42min
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: 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: 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: 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: 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).
