Weather forecast for tomorrow
San Juan, PR

Weather forecast for tomorrow

Thursday, May 1.

PM Showers
5:55 am

6:47 pm
AST
PM Showers
82°F / 75°F
  • Wind: 11mph ENE
  • Humidity: 80%
  • Precip. probability: 48%
  • Precipitation: 0.35"
  • UV index: 11
Tomorrow, patchy afternoon showers could develop as the clouds thicken.
With a low probability, light precipitation is expected. Temperature shifts will be modest, ranging from a peak of a temperate 82.4°F to a low of a moderately hot 75.2°F.
The maximum heat index, which represents the influence of relative humidity on air temperature, is appraised at a tropical 89.6°F. Take into consideration that the heat index values are calculated for shade and light wind conditions.
The temperature will be in line with May's average maximum of 82.4°F.
Sunrise will be at 5:55 am and sunset at 6:47 pm; tomorrow's daylight will last for 12h and 52min.

Frequently asked questions

What is the weather forecast for San Juan for tomorrow?
Tomorrow, intermittent rain showers are forecasted for the afternoon.
Will it rain tomorrow?
Light precipitation of 0.35" is anticipated. The likelihood of rainfall is 48%.
What will be the highest temperature tomorrow?
Tomorrow, the maximum temperature will be 82.4°F, while the minimum temperature will be 75.2°F. The maximum heat index, which combines relative humidity and air temperature, is assessed at 89.6°F.
The maximum temperature will be in line with the average highest temperature of 82.4°F in May. The lowest temperature will be also in line with the average low of 76.6°F.
When is the sunrise / sunset tomorrow?
On Thursday, in San Juan, sunrise will be at 5:55 am and sunset at 6:47 pm (AST).
How many hours of daylight will San Juan have tomorrow?
In San Juan, tomorrow, there will be 12h and 52min of daylight.

Hourly weather forecast

12 am
  • 77°F
  • Feels like:
    77°F
Showers
Showers
  • Wind: 2mph E
  • Pressure: 29.91"Hg
  • Humidity: 86%
  • Precip. probability: 55%
  • Precipitation: 0.04"
  • Visibility: 7mi
2 am
  • 77°F
  • Feels like:
    77°F
Cloudy
Cloudy
  • Wind: 4mph ESE
  • Pressure: 29.88"Hg
  • Humidity: 87%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 9mi
4 am
  • 77°F
  • Feels like:
    77°F
Cloudy
Cloudy
  • Wind: 2mph E
  • Pressure: 29.88"Hg
  • Humidity: 88%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 9mi
Sunrise: 5:55 am
6 am
  • 75°F
  • Feels like:
    81°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 2mph E
  • Pressure: 29.91"Hg
  • Humidity: 91%
  • Precip. probability: 20%
  • Precipitation: 0"
  • Visibility: 7mi
8 am
  • 79°F
  • Feels like:
    84°F
Partly Cloudy
Partly Cloudy
  • Wind: 4mph ENE
  • Pressure: 29.94"Hg
  • Humidity: 85%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 10mi
10 am
  • 81°F
  • Feels like:
    88°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 9mph NE
  • Pressure: 29.94"Hg
  • Humidity: 78%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 10mi
12 pm
  • 82°F
  • Feels like:
    88°F
Showers
Showers
  • Wind: 11mph NE
  • Pressure: 29.94"Hg
  • Humidity: 76%
  • Precip. probability: 35%
  • Precipitation: 0.04"
  • Visibility: 7mi
2 pm
  • 81°F
  • Feels like:
    88°F
Few Showers
Few Showers
  • Wind: 11mph ENE
  • Pressure: 29.91"Hg
  • Humidity: 79%
  • Precip. probability: 30%
  • Precipitation: 0.04"
  • Visibility: 9mi
4 pm
  • 81°F
  • Feels like:
    88°F
Cloudy
Cloudy
  • Wind: 9mph ENE
  • Pressure: 29.88"Hg
  • Humidity: 78%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 9mi
6 pm
  • 81°F
  • Feels like:
    86°F
Showers
Showers
  • Wind: 9mph ENE
  • Pressure: 29.88"Hg
  • Humidity: 79%
  • Precip. probability: 48%
  • Precipitation: 0.04"
  • Visibility: 7mi
Sunset: 6:47 pm
8 pm
  • 79°F
  • Feels like:
    84°F
Few Showers
Few Showers
  • Wind: 6mph ENE
  • Pressure: 29.91"Hg
  • Humidity: 84%
  • Precip. probability: 35%
  • Precipitation: 0.04"
  • Visibility: 10mi
10 pm
  • 77°F
  • Feels like:
    82°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 6mph ENE
  • Pressure: 29.94"Hg
  • Humidity: 86%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 10mi
Tomorrow, a combination of cloudy, damp and thunderstorm-prone weather is forecasted.
Rainfall is forecasted at 12 am, and from 12 pm to 3 pm, and from 5 pm to 8 pm and at 11 pm. With light precipitation of 0.12", most rainfall is expected at 7 pm.
The temperature will be between a minimum of 75.2°F and a maximum of 82.4°F. The warmest part of the day will be at 11 am and noon.
The high temperature is expected to be comparable to May's usual value of 82.4°F. The temperature low is forecasted to be also alike with the usual May value of 76.6°F.
Updated: May 1, 2025 @ 02:15:52 UTC
Published by: Weather U.S. | About Us
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