Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
511 FOCA52 TJSJ 102103 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 PM AST Sun Aug 10 2025 PRZ001-110800- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 PM AST Sun Aug 10 2025 Date 08/10/25 Mon 08/11/25 Tue 08/12/25 Wed AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 78 89 79 90 79 Temp 82 80 79 79 85 88 89 86 82 81 80 80 86 89 90 87 83 81 80 80 85 Dewpt 75 75 74 74 74 75 75 74 74 75 75 76 77 77 77 77 77 77 76 76 76 RH 79 85 85 85 70 66 64 68 77 82 85 88 75 68 66 72 82 88 88 88 75 Wind dir E E SE SE E E E E E E E E E E E E E E E E E Wind spd 10 9 6 6 8 13 13 13 10 8 8 6 9 11 11 11 10 8 6 6 5 Clouds SC FW SC FW SC SC B2 B2 FW SC SC SC B2 B2 B1 B1 SC SC B2 B2 SC PoP 12hr 30 50 60 60 50 QPF 12hr 0.08 0.77 0.13 0.42 0.17 Rain shwrs C S S S C C C C S C C L L C C S S C C C Tstms S S S S Obvis H H Heat index 88 85 83 92 98 99 94 88 87 84 86 97102103 98 91 88 85 86 95 Max heat 94 87 92 100 99 88 97 103 102 90 95 Date 08/13 Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 89 79 89 78 89 78 89 78 90 Temp 89 82 80 85 89 82 79 85 89 82 79 85 89 82 79 85 90 82 Dewpt 76 76 76 75 76 75 75 75 75 75 75 76 76 76 75 76 76 76 PWind dir E E E E E E NE SE SE Wind char GN GN GN LT GN LT GN LT GN Avg clouds SC SC FW SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 50 40 40 40 50 50 50 20 20 Rain shwrs C C S C C C C C C C C C C C S S S S Tstms S S $$ PRZ002-110800- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 PM AST Sun Aug 10 2025 Date 08/10/25 Mon 08/11/25 Tue 08/12/25 Wed AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 80 89 80 91 81 Temp 83 82 81 81 86 88 89 86 83 82 81 81 87 90 91 88 84 83 82 82 86 Dewpt 75 75 75 75 76 76 76 75 76 76 76 76 77 77 78 77 77 77 76 76 77 RH 77 79 82 82 72 68 66 70 80 82 85 85 72 66 66 70 80 82 82 82 75 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 10 11 9 9 9 12 11 11 10 12 11 9 11 11 10 9 9 8 8 8 8 Clouds SC FW SC SC SC SC B2 B2 SC B1 B2 B2 B2 B2 B1 B1 SC SC B2 B2 B2 PoP 12hr 50 50 60 60 60 QPF 12hr 0.09 0.85 0.20 0.42 0.18 Rain shwrs S S S S C C C C S C C C L L C C S S C C L Tstms S S S S Obvis H H Heat index 91 88 86 87 95100100 95 91 89 87 88 98104106100 94 92 89 89 97 Max heat 97 90 95 100 100 90 98 106 105 93 97 Date 08/13 Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 89 80 90 80 89 79 88 79 89 Temp 89 83 81 86 90 83 81 86 89 82 80 85 88 82 80 85 89 83 Dewpt 77 76 76 76 76 76 75 76 76 76 75 76 76 76 75 76 77 76 PWind dir E E E E E NE SE S SE Wind char GN GN GN GN GN LT LT LT LT Avg clouds B2 SC SC SC SC SC SC SC SC SC SC SC B1 B1 SC SC SC SC PoP 12hr 60 40 50 50 50 50 60 20 50 Rain shwrs L C C C C C C C C C C C L L S S S C Tstms S S S S S S $$ PRZ007-110800- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 PM AST Sun Aug 10 2025 Date 08/10/25 Mon 08/11/25 Tue 08/12/25 Wed AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 76 89 77 90 77 Temp 81 79 77 77 84 88 89 85 81 79 78 78 85 89 90 86 81 79 78 78 85 Dewpt 73 72 71 70 74 77 77 77 74 73 73 73 76 78 79 78 77 75 73 73 75 RH 77 79 82 79 72 70 68 77 79 82 85 85 75 70 70 77 88 88 85 85 72 Wind dir E NE NE NE E E SE SE E NE NE NE E E E E E NE NE NE E Wind spd 9 5 5 4 4 14 17 14 10 5 4 3 4 12 14 12 8 4 3 4 6 Wind gust 25 28 25 Clouds CL CL CL CL SC FW SC B1 FW FW FW SC SC SC SC SC SC SC SC SC SC PoP 12hr 20 40 30 30 30 QPF 12hr 0.01 0.07 0.04 0.21 0.07 Rain shwrs S S C C S C C S S S S S S C Obvis H H H H H H Heat index 86 91101102 96 86 83 95103106 98 89 84 94 Max heat 94 84 91 102 101 85 95 106 105 87 94 Date 08/13 Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 77 91 76 89 76 88 76 90 Temp 90 81 78 86 91 81 77 84 89 80 77 83 88 80 77 85 90 81 Dewpt 77 76 73 74 78 76 73 75 78 76 74 75 78 76 74 76 78 76 PWind dir E NE E E E NE SE E SE Wind char GN LT GN LT GN LT LT LT LT Avg clouds SC SC CL CL FW SC FW FW FW SC FW FW FW SC SC FW FW FW PoP 12hr 40 0 30 10 40 10 30 20 20 Rain shwrs C C C C S S C C S S C C S S S S Tstms S S $$ PRZ008-110800- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 PM AST Sun Aug 10 2025 Date 08/10/25 Mon 08/11/25 Tue 08/12/25 Wed AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 75 87 77 88 77 Temp 79 77 76 76 82 86 87 84 80 79 78 78 84 87 88 85 81 79 78 78 84 Dewpt 74 75 74 73 74 74 76 75 75 74 74 75 76 77 78 77 77 77 76 76 75 RH 85 94 94 90 77 68 70 74 85 85 88 91 77 72 72 77 88 94 94 94 74 Wind dir E E E E E E NE E E E E E E E E E E E E E E Wind spd 11 5 8 9 9 12 13 11 18 14 11 8 9 10 12 14 16 13 10 11 8 Clouds FW FW SC CL CL CL B2 B2 SC CL CL FW FW FW OV OV SC SC SC SC CL PoP 12hr 10 60 5 70 30 QPF 12hr 0.02 0.94 0.01 1.14 0.12 Rain shwrs S S S L L S L L C C S S Tstms S S S S Obvis H H H H H Heat index 89 94 98 92 85 93 99102 95 88 84 92 Max heat 90 89 98 97 84 93 102 101 86 92 Date 08/13 Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 77 88 76 88 77 87 76 88 Temp 88 81 78 84 88 80 77 83 88 81 78 83 87 80 77 83 88 80 Dewpt 76 76 76 75 76 76 75 75 75 75 75 75 76 75 75 75 75 76 PWind dir E E E E E E NE SE S Wind char GN GN GN GN GN GN GN LT LT Avg clouds FW SC CL CL FW SC FW FW FW SC FW FW FW SC SC SC FW SC PoP 12hr 40 0 40 10 20 10 50 30 50 Rain shwrs C C C C S S S S S S C C C C C C Tstms S S S S S S $$ PRZ010-110800- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 PM AST Sun Aug 10 2025 Date 08/10/25 Mon 08/11/25 Tue 08/12/25 Wed AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 74 91 74 92 75 Temp 80 77 75 76 85 90 91 86 80 77 75 76 85 91 92 87 81 78 76 77 86 Dewpt 76 75 74 73 74 76 78 77 76 75 74 74 76 78 80 78 78 77 76 75 76 RH 88 94 97 90 70 64 66 75 88 94 97 94 75 66 68 75 91 97100 94 72 Wind dir E E E E E E SE E E E E E E E E E E E E E E Wind spd 4 5 5 3 3 1 4 4 8 4 2 2 3 2 2 4 6 6 4 5 4 Clouds CL CL FW CL CL CL B2 OV SC CL CL CL CL CL OV OV SC SC SC SC FW PoP 12hr 5 70 5 70 20 QPF 12hr 0 1.15 0 0.83 0.07 Rain shwrs L L S L L S S S S S Tstms S S S S Obvis H H H H H H H Heat index 85 92102106 97 84 95106111100 89 95 Max heat 97 92 106 105 95 111 109 85 95 Date 08/13 Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 92 75 93 74 92 75 91 75 92 Temp 92 81 76 86 93 80 75 85 92 81 76 85 91 80 76 86 92 81 Dewpt 79 77 75 76 78 77 75 76 78 76 75 76 78 76 75 76 78 76 PWind dir NE E E E E E N SE SE Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC B1 CL CL SC B1 FW FW SC B1 CL CL SC B2 SC SC FW SC PoP 12hr 60 0 60 10 60 0 60 30 50 Rain shwrs L L L L S S L L L L C C C C Tstms S S S S S S S S S S $$ VIZ001-110800- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 PM AST Sun Aug 10 2025 Date 08/10/25 Mon 08/11/25 Tue 08/12/25 Wed AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 82 91 82 91 81 Temp 85 84 83 83 88 90 91 88 85 84 83 83 88 90 91 88 84 83 82 82 87 Dewpt 76 76 76 75 76 76 75 76 77 77 78 78 78 78 78 77 78 77 78 77 76 RH 75 77 80 77 68 64 60 68 77 80 85 85 72 68 66 70 82 82 88 85 70 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 17 17 16 12 14 14 16 14 16 18 16 16 14 13 13 13 13 13 13 13 13 Clouds FW FW SC SC SC SC B1 B1 SC B1 SC SC B2 B2 B1 B1 SC SC B1 B1 SC PoP 12hr 40 40 60 60 50 QPF 12hr 0.09 0.64 0.16 0.42 0.15 Rain shwrs S S C C C C C C S C C C L L C C S S C C C Tstms S S Obvis H H Heat index 94 92 90 90 98102102 99 95 93 92 93101105106100 95 92 90 90 98 Max heat 100 93 98 103 101 95 101 106 105 94 98 Date 08/13 Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 91 81 91 81 90 81 90 82 90 Temp 91 84 82 87 91 84 82 87 90 84 82 87 90 85 82 87 90 84 Dewpt 77 77 77 76 76 76 76 76 75 76 76 76 76 76 77 77 76 77 PWind dir E E E E E NE SE S SE Wind char GN BZ GN BZ GN GN LT LT GN Avg clouds SC FW SC SC SC SC SC SC SC SC SC SC SC SC SC SC FW SC PoP 12hr 50 30 30 40 40 40 40 20 20 Rain shwrs C S S C C C S C C C C C C C S S S S $$ VIZ002-110800- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 PM AST Sun Aug 10 2025 Date 08/10/25 Mon 08/11/25 Tue 08/12/25 Wed AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 79 89 79 92 79 Temp 83 81 80 80 85 88 89 86 82 81 80 80 87 91 92 88 83 81 80 80 86 Dewpt 74 75 75 75 76 76 76 76 76 77 77 76 78 78 78 77 77 77 76 76 76 RH 74 82 85 85 75 68 66 72 82 88 91 88 75 66 64 70 82 88 88 88 72 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 14 13 13 12 13 16 14 14 14 16 14 13 13 13 13 13 13 12 11 12 12 Clouds FW FW SC SC SC FW SC SC B1 SC SC SC B1 B1 SC SC CL CL SC SC FW PoP 12hr 40 40 40 40 20 QPF 12hr 0.08 0.38 0.13 0.16 0.05 Rain shwrs S S C C S S C C C C C S C C S S S S S Obvis H H H H H H H Heat index 89 87 84 85 95100100 96 90 88 85 86100106107100 93 89 85 86 96 Max heat 96 88 95 100 100 89 100 107 107 91 96 Date 08/13 Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 78 90 78 89 78 89 78 89 Temp 90 82 79 85 90 82 79 85 89 82 79 85 89 82 79 85 89 82 Dewpt 76 76 75 76 76 76 76 76 75 75 76 76 76 76 76 77 77 76 PWind dir E E E E E NE SE SE SE Wind char GN GN BZ GN GN LT LT LT GN Avg clouds FW CL CL FW SC SC FW FW SC SC SC SC SC SC FW FW SC FW PoP 12hr 5 30 30 20 40 40 30 20 20 Rain shwrs S C C C S S S C C C C C S S S S $$