San Juan, PR

10:27 PM AST on June 24, 2018 (GMT -0400)
Luis Munoz Marin International

Weather History for TJSJ - September, 2017

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Thursday, September 14, 2017

  Actual Average Record
Temperature  
Mean Temperature 87 °F 84 °F  
Max Temperature 93 °F 89 °F 95 °F (1982)
Min Temperature 81 °F 78 °F 71 °F (1959)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 0 0  
Since 1 July heating degree days 0 0  
Cooling Degree Days 22 19  
Month to date cooling degree days 277 266  
Year to date cooling degree days 4309 4130  
Growing Degree Days 37 (Base 50)    
Moisture  
Dew Point 76 °F    
Average Humidity 71    
Maximum Humidity 85    
Minimum Humidity 56    
Precipitation  
Precipitation T in 0.19 in 2.88 in (2013)
Month to date precipitation 3.90 2.89  
Year to date precipitation 42.58 36.51  
Sea Level Pressure  
Sea Level Pressure 29.91 in    
Wind  
Wind Speed 6 mph (South)    
Max Wind Speed 13 mph    
Max Gust Speed 21 mph    
Visibility 10 miles    
Events Rain , Thunderstorm    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Astronomy

Sep. 14, 2017 Rise Set
Actual Time 6:11 AM AST 6:26 PM AST
Civil Twilight 5:49 AM AST 6:48 PM AST
Nautical Twilight 5:24 AM AST 7:14 PM AST
Astronomical Twilight 4:58 AM AST 7:39 PM AST
Moon 12:40 AM AST (9/14) 2:04 PM AST (9/14)
Length of Visible Light 12h 59m
Length of Day
12h 15m
Waning Crescent, 34% of the Moon is Illuminated
Sep 14
Waning Crescent
Sep 20
New
Sep 27
First Quarter
Oct 5
Full
Oct 12
Last Quarter

Hourly Weather History & Observations

Time (AST) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 82.9 °F 91.8 °F 77.0 °F 82% 29.91 in 10.0 mi South 3.5 mph - N/A   Partly Cloudy
1:56 AM 82.9 °F 91.8 °F 77.0 °F 82% 29.90 in 10.0 mi SSW 3.5 mph - N/A   Partly Cloudy
2:56 AM 82.0 °F 89.4 °F 75.9 °F 82% 29.88 in 10.0 mi South 3.5 mph - N/A   Clear
3:56 AM 81.0 °F 87.3 °F 75.9 °F 85% 29.87 in 10.0 mi Calm Calm - N/A   Clear
4:56 AM 81.0 °F 87.3 °F 75.9 °F 85% 29.88 in 10.0 mi Calm Calm - N/A   Clear
5:56 AM 81.0 °F 87.3 °F 75.9 °F 85% 29.89 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:56 AM 82.0 °F 89.4 °F 75.9 °F 82% 29.91 in 10.0 mi South 3.5 mph - N/A   Mostly Cloudy
7:56 AM 84.0 °F 91.9 °F 75.0 °F 74% 29.93 in 10.0 mi SE 3.5 mph - N/A   Mostly Cloudy
8:56 AM 88.0 °F 98.5 °F 75.9 °F 67% 29.93 in 10.0 mi South 5.8 mph - N/A   Scattered Clouds
9:56 AM 91.0 °F 102.9 °F 75.9 °F 61% 29.94 in 10.0 mi South 4.6 mph - N/A   Scattered Clouds
10:56 AM 91.9 °F 103.9 °F 75.9 °F 59% 29.94 in 10.0 mi SSE 8.1 mph - N/A   Scattered Clouds
11:56 AM 88.0 °F 101.3 °F 78.1 °F 72% 29.91 in 10.0 mi East 8.1 mph - N/A   Mostly Cloudy
12:56 PM 90.0 °F 102.5 °F 77.0 °F 65% 29.90 in 10.0 mi SE 8.1 mph - N/A   Scattered Clouds
1:56 PM 90.0 °F 100.2 °F 75.0 °F 61% 29.89 in 10.0 mi South 10.4 mph 17.3 mph 0.00 in   Scattered Clouds
2:56 PM 93.0 °F 104.6 °F 75.0 °F 56% 29.87 in 10.0 mi South 9.2 mph - N/A   Mostly Cloudy
3:56 PM 86.0 °F 96.9 °F 77.0 °F 74% 29.87 in 10.0 mi SSW 8.1 mph - 0.00 in Rain Light Rain
4:18 PM 82.0 °F 91.0 °F 78.1 °F 88% 29.88 in 10.0 mi West 8.1 mph - 0.00 in Rain , Thunderstorm Light Thunderstorms and Rain
4:43 PM 82.9 °F 93.8 °F 79.0 °F 88% 29.88 in 10.0 mi Calm Calm - 0.00 in Rain Light Rain
4:56 PM 84.0 °F 93.7 °F 77.0 °F 79% 29.88 in 10.0 mi South 6.9 mph - 0.00 in   Scattered Clouds
5:56 PM 84.9 °F 93.3 °F 75.0 °F 72% 29.88 in 10.0 mi South 8.1 mph - 0.00 in   Scattered Clouds
6:56 PM 84.0 °F 91.9 °F 75.0 °F 74% 29.92 in 10.0 mi South 9.2 mph - N/A   Scattered Clouds
7:56 PM 82.9 °F 90.2 °F 75.0 °F 77% 29.95 in 10.0 mi South 12.7 mph 19.6 mph N/A   Scattered Clouds
8:56 PM 82.0 °F 87.9 °F 73.9 °F 76% 29.96 in 10.0 mi SSE 4.6 mph - N/A   Partly Cloudy
9:56 PM 82.0 °F 87.9 °F 73.9 °F 76% 29.97 in 10.0 mi SSE 6.9 mph - N/A   Partly Cloudy
10:56 PM 81.0 °F 86.7 °F 75.0 °F 82% 29.97 in 10.0 mi SSE 10.4 mph 20.7 mph N/A   Partly Cloudy
11:56 PM 81.0 °F 86.7 °F 75.0 °F 82% 29.96 in 10.0 mi SSE 11.5 mph 18.4 mph N/A   Partly Cloudy