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San Juan, San Juan

81°F
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Today Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities
Thursday, September 18

Current Weather

12:49 AM

81°F
Cloudy
RealFeel® 90°
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.
LEARN MORE
RealFeel®
90°
Wind
SE 6 mph
Wind Gusts
15 mph
Humidity
86%
Indoor Humidity
86% (Extremely Humid)
Dew Point
76° F
Pressure
↓ 29.89 in
Cloud Cover
97%
Visibility
5 mi
Cloud Ceiling
30000 ft

Day

9/18
86°Hi
RealFeel® 97°
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.
LEARN MORE
RealFeel Shade™ 92°
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.
LEARN MORE
Mainly cloudy

Max UV Index4.0 (Moderate)

AccuLumen Brightness Index™1 (Dark)

WindESE 8 mph

Wind Gusts17 mph

Probability of Precipitation25%

Probability of Thunderstorms6%

Precipitation0.00 in

Cloud Cover98%

Morning

Afternoon

Night

9/18
78°Lo
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.
LEARN MORE
Partly cloudy with a shower in the area late

WindSSE 5 mph

Wind Gusts12 mph

Probability of Precipitation49%

Probability of Thunderstorms10%

Precipitation0.01 in

Rain0.01 in

Hours of Precipitation0.5

Hours of Rain0.5

Cloud Cover47%

Evening

Overnight

Sun & Moon

12 hrs 11 mins
Rise 6:13 AM
Set 6:24 PM
Waning Crescent
Rise 3:19 AM
Set 4:33 PM

Temperature History

9/18
High
Low
Forecast
86°
78°
Average
89°
76°
Last Year
91°
81°
Record
96°
1995
71°
1960

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