Weather forecast for tomorrow
San Juan, PR

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Weather forecast and temperature for tomorrow - Wednesday, Dec 4.

Partly Cloudy
6:41 am

5:48 pm
AST
Partly Cloudy
86°F / 77°F
  • Wind: 12mph E
  • Humidity: 71%
  • Precip. probability: 21%
  • Precipitation: 0"
  • UV index: 7
Tomorrow, on Wednesday, December 4, partially clouded weather is also expected.
The daytime temperature will peak at a tropical 86°F (30°C), slightly differing from the night's low of a moderately hot 77°F (25°C).
The maximum heat index, which combines air temperature and relative humidity, is computed to be a sweltering 95°F (35°C). Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
The day's top temperature will be a couple of degrees higher than the typical December high of 80.8°F (27.1°C).
Sunrise will be at 6:41 am and sunset at 5:48 pm; tomorrow's daylight will last for 11h and 7min.

Frequently asked questions

What is the weather forecast for San Juan for tomorrow?

Tomorrow, on Wednesday, December 4, relatively clouded weather is expected.

What will be the highest temperature tomorrow?

Tomorrow, the highest temperature will be 86°F (30°C), while the lowest temperature will be 77°F (25°C). The maximum heat index, which combines air temperature and relative humidity, is computed to be 95°F (35°C).
The highest temperature will be a couple of degrees higher than the average maximum of 80.8°F (27.1°C) in December. The lowest temperature will be in line with the average low of 75.9°F (24.4°C).

When is the sunrise / sunset tomorrow?

On Wednesday, in San Juan, sunrise will be at 6:41 am and sunset at 5:48 pm (AST).

How many hours of daylight will San Juan have tomorrow?

In San Juan, tomorrow, there will be 11h and 7min of daylight.

Hourly weather forecast and temperature - San Juan, PR

12 am
  • 81°F
  • Feels like:
    86°F
Partly Cloudy
Partly Cloudy
  • Wind: 2mph SE
  • Pressure: 29.97"Hg
  • Humidity: 83%
  • Precip. probability: 5%
  • Precipitation: 0"
  • Visibility: 10mi
2 am
  • 79°F
  • Feels like:
    84°F
Partly Cloudy
Partly Cloudy
  • Wind: 2mph SE
  • Pressure: 29.97"Hg
  • Humidity: 85%
  • Precip. probability: 5%
  • Precipitation: 0"
  • Visibility: 10mi
4 am
  • 79°F
  • Feels like:
    84°F
Partly Cloudy
Partly Cloudy
  • Wind: 1mph SSE
  • Pressure: 29.94"Hg
  • Humidity: 86%
  • Precip. probability: 5%
  • Precipitation: 0"
  • Visibility: 10mi
6 am
  • 77°F
  • Feels like:
    82°F
Partly Cloudy
Partly Cloudy
  • Wind: 1mph SSE
  • Pressure: 29.97"Hg
  • Humidity: 89%
  • Precip. probability: 5%
  • Precipitation: 0"
  • Visibility: 10mi
Sunrise: 6:41 am
8 am
  • 81°F
  • Feels like:
    86°F
Partly Cloudy
Partly Cloudy
  • Wind: 2mph SE
  • Pressure: 30"Hg
  • Humidity: 81%
  • Precip. probability: 5%
  • Precipitation: 0"
  • Visibility: 10mi
10 am
  • 84°F
  • Feels like:
    93°F
Partly Cloudy
Partly Cloudy
  • Wind: 8mph E
  • Pressure: 30.03"Hg
  • Humidity: 69%
  • Precip. probability: 12%
  • Precipitation: 0"
  • Visibility: 10mi
12 pm
  • 86°F
  • Feels like:
    95°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 11mph E
  • Pressure: 30"Hg
  • Humidity: 66%
  • Precip. probability: 21%
  • Precipitation: 0"
  • Visibility: 10mi
2 pm
  • 86°F
  • Feels like:
    95°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 11mph E
  • Pressure: 29.94"Hg
  • Humidity: 66%
  • Precip. probability: 6%
  • Precipitation: 0"
  • Visibility: 10mi
4 pm
  • 86°F
  • Feels like:
    93°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 12mph E
  • Pressure: 29.91"Hg
  • Humidity: 65%
  • Precip. probability: 5%
  • Precipitation: 0"
  • Visibility: 10mi
Sunset: 5:48 pm
6 pm
  • 82°F
  • Feels like:
    90°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 9mph E
  • Pressure: 29.94"Hg
  • Humidity: 73%
  • Precip. probability: 2%
  • Precipitation: 0"
  • Visibility: 10mi
8 pm
  • 81°F
  • Feels like:
    88°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph E
  • Pressure: 29.97"Hg
  • Humidity: 78%
  • Precip. probability: 11%
  • Precipitation: 0"
  • Visibility: 10mi
10 pm
  • 81°F
  • Feels like:
    86°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 6mph E
  • Pressure: 30"Hg
  • Humidity: 79%
  • Precip. probability: 8%
  • Precipitation: 0"
  • Visibility: 10mi
Tomorrow, primarily cloudy and occasionally rainy weather is expected.
The temperature will vary between the lowest temperature of 77°F (25°C) and the highest temperature of 86°F (30°C). The feels-like temperature will vary between a minimum of 82.4°F (28°C) and a maximum of 95°F (35°C). The hottest part of the day will be from 11 am to 4 pm.
The maximum temperature will be relatively higher than the average highest temperature of 80.8°F (27.1°C) in December. The lowest temperature will be also comparable to December's average minimum of 75.9°F (24.4°C).
Updated: Dec 3, 2024 @ 17:36:25 UTC
Published by: Weather U.S. | About Us
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Weather Forecasting & Climate

San Juan, Puerto Rico, USA

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