Weather forecast for todaySan Juan, PR

Weather forecast for today

Current condition 7:45 am AST

  • 84°F
  • Feels like:
    93°F
Mostly Cloudy
Mostly Cloudy
  • Precipitation: 0"
  • Wind: 5mphS 180°
  • Humidity: 74%
  • Dewpoint: 75°F
  • Pressure: 29.95"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
Currently, in San Juan, the sky is mostly covered by clouds, allowing minimal sunlight.
The temperature is a moderately hot 84.2°F, the apparent temperature, which calculates the temperature value influenced by the moisture in the air, registers as estimated at a humid 93.2°F. The current temperature is only a few degrees off the highest temperature for today.

Friday Oct 23, 2026

  • 90°F
  • 81°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 14%
  • Precipitation: 0"
  • Wind: 14mphESE 110°
  • Humidity: 67%
  • UV index: 9
  • Sunrise: 6:20 am AST
  • Sunset: 5:56 pm AST
  • ▼
On Friday, October 23, clouds will hold steady, keeping conditions mostly dim.
Modest temperature shifts from a high of a hot 89.6°F to a low of a temperate 80.6°F are anticipated.
The maximum heat index, which indicates how humid air affects the felt temperature, is evaluated at a fiery hot 102.2°F. Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Forecasted temperatures are trending moderately higher than October's climate norm of 84.6°F.
Sunrise was at 6:20 am and sunset will be at 5:56 pm; the daylight will last for 11h and 36min.

Hourly overview

Hourly temperatures

Warmest period: 10 am - 2 pm 100°C.
Coldest hour: 12 am 91°C.

Chance of precipitation

Highest chance: 4 pm 12%.

Hourly weather forecast

  • 8 am
  • 86°F
  • Feels like:
    95°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 5mphSE 136°
  • Humidity: 73%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 9 am
  • 88°F
  • Feels like:
    99°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 9mphESE 118°
  • Humidity: 69%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 10 am
  • 90°F
  • Feels like:
    100°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 11mphESE 108°
  • Humidity: 63%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 5
  • ▼
  • 11 am
  • 90°F
  • Feels like:
    100°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 12mphE 99°
  • Humidity: 64%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 6
  • ▼
  • 12 pm
  • 90°F
  • Feels like:
    100°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 14mphE 95°
  • Humidity: 63%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 8
  • ▼
  • 1 pm
  • 90°F
  • Feels like:
    100°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 14mphE 101°
  • Humidity: 62%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 9
  • ▼
  • 2 pm
  • 90°F
  • Feels like:
    100°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 14mphESE 104°
  • Humidity: 63%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 6
  • ▼
  • 3 pm
  • 90°F
  • Feels like:
    100°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 14%
  • Precipitation: 0"
  • Wind: 14mphESE 106°
  • Humidity: 64%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 88°F
  • Feels like:
    99°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 12%
  • Precipitation: 0"
  • Wind: 13mphESE 111°
  • Humidity: 66%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 5 pm
  • 88°F
  • Feels like:
    97°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 12mphESE 117°
  • Humidity: 68%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 5:56 pm
  • 6 pm
  • 86°F
  • Feels like:
    95°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 11mphESE 121°
  • Humidity: 72%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 7 pm
  • 84°F
  • Feels like:
    93°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 8mphSE 133°
  • Humidity: 74%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 84°F
  • Feels like:
    93°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 7mphSE 136°
  • Humidity: 75%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 84°F
  • Feels like:
    93°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 6mphSE 136°
  • Humidity: 76%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 84°F
  • Feels like:
    93°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphSE 136°
  • Humidity: 77%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 82°F
  • Feels like:
    91°F
Cloudy
Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 5mphSE 142°
  • Humidity: 78%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, the weather will be cloudy.
The temperature will vary between a maximum of 89.6°F and a minimum of 82.4°F. The feels-like temperature will be between a minimum of 91.4°F and a maximum of 100.4°F. The hottest part of the day will be from 10 am to 3 pm.
The temperature is expected to be a few degrees higher than the average peak in October, which is 84.6°F. The expected low will be also in line with the average minimum in October, which is 79.2°F.
Updated: Oct 23, 2026 @ 11:45:01 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The temperature at 7:45 am AST is 84.2°F. Feels-like temperature is 93.2°F.

Today, gray skies will define the day.

Today, the maximum temperature will be 89.6°F, while the minimum temperature will be 80.6°F. The maximum heat index, which measures the combined effect of heat and moisture, is computed to be 102.2°F.
The highest temperature will be a couple of degrees higher than the average maximum of 84.6°F in October. The lowest temperature will be in line with the average low of 79.2°F.

On Friday, in San Juan, sunrise was at 6:20 am and sunset will be at 5:56 pm (AST).

In San Juan, today, there will be 11h and 36min of daylight.