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San Juan, San Juan Weather

Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Hourly

10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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12 PM

85°

RealFeel® 94°

Hot

RealFeel Guide

Hot

90° to 100°

Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

0%

Sunny

RealFeel Shade™85°

Heat Index90°

WindENE 15 mph

Air QualityFair

Max UV Index12.7 (Extreme)

Wind Gusts22 mph

Humidity62%

Indoor Humidity62% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover8%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

87°

RealFeel® 95°

Hot

RealFeel Guide

Hot

90° to 100°

Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

0%

Mostly sunny

RealFeel Shade™87°

Heat Index92°

WindENE 16 mph

Air QualityFair

Max UV Index11.1 (Extreme)

Wind Gusts25 mph

Humidity58%

Indoor Humidity58% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

85°

RealFeel® 91°

Hot

RealFeel Guide

Hot

90° to 100°

Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

0%

Mostly sunny

RealFeel Shade™86°

Heat Index90°

WindENE 17 mph

Air QualityFair

Max UV Index7.9 (Very High)

Wind Gusts28 mph

Humidity61%

Indoor Humidity61% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover12%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

85°

RealFeel® 89°

Very Warm

RealFeel Guide

Very Warm

82° to 89°

Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.

0%

Sunny

RealFeel Shade™85°

Heat Index90°

WindENE 17 mph

Air QualityFair

Max UV Index4.7 (Moderate)

Wind Gusts28 mph

Humidity62%

Indoor Humidity62% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover8%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

85°

RealFeel® 88°

Very Warm

RealFeel Guide

Very Warm

82° to 89°

Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.

0%

Sunny

RealFeel Shade™85°

Heat Index90°

WindENE 17 mph

Air QualityFair

Max UV Index2.9 (Moderate)

Wind Gusts29 mph

Humidity64%

Indoor Humidity64% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover4%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

84°

RealFeel® 86°

Very Warm

RealFeel Guide

Very Warm

82° to 89°

Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.

0%

Sunny

RealFeel Shade™85°

Heat Index89°

WindENE 16 mph

Air QualityFair

Max UV Index1.6 (Low)

Wind Gusts30 mph

Humidity65%

Indoor Humidity65% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

83°

RealFeel® 85°

Very Warm

RealFeel Guide

Very Warm

82° to 89°

Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.

0%

Sunny

RealFeel Shade™85°

Heat Index88°

WindENE 15 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts27 mph

Humidity67%

Indoor Humidity67% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover1%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

82°

RealFeel® 84°

Very Warm

RealFeel Guide

Very Warm

82° to 89°

Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.

0%

Clear

Heat Index86°

WindENE 13 mph

Air QualityFair

Wind Gusts24 mph

Humidity71%

Indoor Humidity71% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover1%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

81°

RealFeel® 84°

Very Warm

RealFeel Guide

Very Warm

82° to 89°

Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.

0%

Clear

Heat Index85°

WindE 10 mph

Air QualityFair

Wind Gusts21 mph

Humidity73%

Indoor Humidity73% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover2%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

81°

RealFeel® 84°

Very Warm

RealFeel Guide

Very Warm

82° to 89°

Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.

0%

Clear

Heat Index85°

WindE 10 mph

Air QualityFair

Wind Gusts20 mph

Humidity74%

Indoor Humidity74% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover6%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

80°

RealFeel® 84°

Very Warm

RealFeel Guide

Very Warm

82° to 89°

Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.

0%

Mostly clear

Heat Index84°

WindE 9 mph

Air QualityFair

Wind Gusts18 mph

Humidity74%

Indoor Humidity74% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

80°

RealFeel® 84°

Very Warm

RealFeel Guide

Very Warm

82° to 89°

Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.

0%

Mostly clear

Heat Index84°

WindE 9 mph

Air QualityFair

Wind Gusts18 mph

Humidity75%

Indoor Humidity75% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover15%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for San Juan

AccuWeather's hourly forecast for San Juan provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 85° with a RealFeel® of 94°, sunny with a 0% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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