Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
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045 FOCA52 TJSJ 012103 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 PM AST Fri Aug 1 2025 PRZ001-020800- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 PM AST Fri Aug 1 2025 Date 08/01/25 Sat 08/02/25 Sun 08/03/25 Mon 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 90 79 91 80 Temp 83 81 80 80 86 89 90 87 83 81 80 80 86 90 91 88 84 82 81 81 87 Dewpt 77 76 76 76 77 76 76 77 76 76 76 75 76 76 76 76 76 76 76 76 77 RH 82 85 88 88 75 66 64 72 80 85 88 85 72 64 62 68 77 82 85 85 72 Wind dir E E E E E SE SE SE SE SE SE SE SE E E E E E E E E Wind spd 12 11 10 6 6 13 16 11 9 9 6 5 6 13 18 14 10 10 10 10 12 Clouds B2 B2 B2 OV OV OV B2 B1 B1 B2 B2 B2 SC SC B2 B2 B2 B2 B2 B2 SC PoP 12hr 70 70 60 50 50 QPF 12hr 0.70 0.69 0.38 0.77 0.09 Rain shwrs C C L L L L L C C L C C C C C C C C C C C Tstms S S S S S S S S S Heat index 91 88 85 86 97101102 98 90 88 85 85 97102103 98 92 90 87 88 98 Max heat 98 89 97 102 101 89 97 103 102 91 98 Date 08/04 Tue 08/05/25 Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 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 79 88 79 90 79 90 79 92 Temp 91 83 80 85 88 82 80 86 90 83 80 86 90 83 80 87 92 83 Dewpt 76 76 76 75 75 75 75 75 75 75 75 75 75 76 75 75 72 75 PWind dir E E E E E SE E E E Wind char GN GN GN LT GN LT GN LT GN Avg clouds SC SC SC SC SC B1 B2 B2 B1 SC SC SC SC SC SC SC SC SC PoP 12hr 30 30 60 60 40 30 30 20 20 Rain shwrs C C C C C L L L C S S C C S S S S S $$ PRZ002-020800- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 PM AST Fri Aug 1 2025 Date 08/01/25 Sat 08/02/25 Sun 08/03/25 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 79 89 79 90 80 Temp 83 81 80 80 85 88 89 86 82 81 80 80 86 89 90 87 83 82 81 81 86 Dewpt 77 77 77 77 77 77 77 77 76 77 76 76 77 77 77 78 77 77 77 77 77 RH 82 88 91 91 77 70 68 75 82 88 88 88 75 68 66 75 82 85 88 88 75 Wind dir NE NE NE E E SE SE SE SE SE SE SE E SE E E E E E E E Wind spd 11 12 10 8 10 11 11 11 10 11 11 11 12 13 14 13 12 12 12 13 13 Clouds B2 B2 B2 OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 OV OV OV OV B1 PoP 12hr 70 70 70 70 70 QPF 12hr 0.71 0.79 0.58 1.06 0.13 Rain shwrs C C L L L L L C L L C C C C L L L L L L C Tstms S S S S S S S S S S Heat index 92 89 85 87 96101102 97 90 88 84 86 97102103100 93 90 88 88 97 Max heat 100 91 96 102 101 89 97 103 102 91 97 Date 08/04 Tue 08/05/25 Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 81 89 79 90 79 89 80 90 Temp 90 84 82 86 89 82 80 86 90 83 80 85 89 83 81 86 90 83 Dewpt 78 77 76 76 76 76 76 76 76 76 75 76 76 76 76 77 74 75 PWind dir E E E E E E E E E Wind char GN GN GN GN GN GN GN GN GN Avg clouds B1 SC SC SC SC B1 B2 B2 B1 SC SC SC SC B1 B1 B1 SC SC PoP 12hr 40 30 60 60 40 30 40 40 30 Rain shwrs C C C C C L L L C C S C C C C C C C $$ PRZ007-020800- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 PM AST Fri Aug 1 2025 Date 08/01/25 Sat 08/02/25 Sun 08/03/25 Mon 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 87 79 90 79 Temp 82 80 79 79 84 86 87 85 82 81 79 80 86 89 90 87 83 81 80 80 86 Dewpt 73 72 72 71 71 72 73 73 73 73 74 74 74 72 73 73 75 74 73 73 73 RH 74 77 79 77 65 63 63 67 74 77 85 82 68 57 58 63 77 79 79 79 65 Wind dir NE NE NE NE E SE SE SE E E E E E SE SE E E E E E E Wind spd 8 5 4 3 5 11 10 11 9 10 9 9 10 12 13 13 9 8 6 8 10 Clouds FW FW SC SC SC B2 B2 B1 B2 B2 B2 B2 B1 B1 SC SC B1 B1 B1 B1 SC PoP 12hr 10 70 60 40 40 QPF 12hr 0.16 0.51 0.51 0.57 0.06 Rain shwrs S S S L L C C C L L C C C C C C C C S Tstms S S Heat index 87 84 88 93 94 91 87 85 84 85 94 96 98 94 90 86 84 84 94 Max heat 93 86 88 94 94 86 94 98 98 89 94 Date 08/04 Tue 08/05/25 Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 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 76 89 76 89 77 89 76 90 Temp 91 81 77 84 89 80 77 84 89 81 78 84 89 80 77 85 90 81 Dewpt 73 73 71 71 70 72 71 70 72 71 70 69 70 72 71 70 70 74 PWind dir E E E NE E E E E E Wind char GN LT GN LT GN LT GN LT GN Avg clouds SC SC CL CL FW B1 SC SC FW FW CL FW FW CL FW FW FW SC PoP 12hr 20 0 40 30 10 10 10 0 30 Rain shwrs S S C C C C S S S S C C $$ PRZ008-020800- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 PM AST Fri Aug 1 2025 Date 08/01/25 Sat 08/02/25 Sun 08/03/25 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 79 88 77 88 78 Temp 82 81 80 80 85 87 88 85 81 79 78 78 84 87 88 85 81 80 79 79 85 Dewpt 76 77 77 77 76 76 76 75 75 76 76 75 75 76 76 75 76 77 76 75 75 RH 82 88 91 91 75 70 68 72 82 91 94 91 74 70 68 72 85 91 91 88 72 Wind dir E E E E E E E NE SE E SE E E E E E E E E E E Wind spd 21 17 14 14 14 10 5 6 2 4 4 5 6 6 10 5 2 9 9 8 11 Clouds FW CL SC SC SC B2 OV OV SC SC SC SC SC SC B2 B2 SC SC SC SC CL PoP 12hr 30 70 20 60 10 QPF 12hr 0.26 1.25 0.07 1.34 0.01 Rain shwrs S C S L L L S S S S S S L L S S S S Tstms S S S S Heat index 90 88 85 85 94 98 99 93 86 83 92 98 99 93 88 85 83 93 Max heat 96 89 94 99 98 85 92 99 97 87 93 Date 08/04 Tue 08/05/25 Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 89 76 88 77 88 76 89 77 88 Temp 89 80 77 83 88 81 78 84 88 80 77 84 89 81 78 84 88 81 Dewpt 76 76 76 75 76 75 76 75 75 75 76 74 76 75 76 75 74 75 PWind dir E E E E E E E E E Wind char GN GN BZ GN GN LT GN GN GN Avg clouds SC B1 SC FW FW SC SC SC B1 B2 SC FW FW SC SC FW CL CL PoP 12hr 60 5 30 30 70 10 40 10 0 Rain shwrs L L S S S C C C L L S S C C S S Tstms S S S S $$ PRZ010-020800- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 PM AST Fri Aug 1 2025 Date 08/01/25 Sat 08/02/25 Sun 08/03/25 Mon 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 90 76 92 77 Temp 82 79 77 77 85 89 90 86 81 79 77 78 86 91 92 87 82 80 78 79 87 Dewpt 77 76 75 74 77 79 79 77 76 76 75 75 76 79 78 77 76 76 75 75 77 RH 85 91 94 90 77 73 70 75 85 91 94 91 72 68 64 72 82 88 91 88 72 Wind dir E NE NE NE E SW SE SE E E E E E SE SE E E E E E E Wind spd 8 13 10 10 8 4 8 4 6 8 6 8 6 4 2 5 3 5 4 4 4 Clouds FW CL CL CL FW B2 OV OV SC SC SC SC SC SC B2 B2 SC SC SC SC CL PoP 12hr 5 80 20 60 20 QPF 12hr 0.05 1.30 0.13 1.07 0.03 Rain shwrs S L L D S S S S S S L L S S S S Tstms S S S S S Heat index 89 84 95105106 97 87 96108107 99 89 85 99 Max heat 101 88 95 106 104 85 96 108 106 87 99 Date 08/04 Tue 08/05/25 Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 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 93 74 92 75 93 74 94 74 93 Temp 93 80 75 85 92 81 76 86 93 80 75 86 94 81 75 86 93 81 Dewpt 79 78 75 76 79 76 75 76 78 76 75 75 78 76 74 76 73 74 PWind dir E E E E E E E E NE Wind char LT LT LT GN LT LT LT LT LT Avg clouds SC B1 SC FW FW B1 SC SC SC B2 SC FW FW SC SC FW FW SC PoP 12hr 60 10 40 20 70 10 30 10 30 Rain shwrs L L S S C C S S L L S S C C S S C C Tstms S S S S $$ VIZ001-020800- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 PM AST Fri Aug 1 2025 Date 08/01/25 Sat 08/02/25 Sun 08/03/25 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 80 89 81 89 81 Temp 84 82 81 81 86 88 89 87 84 83 81 82 86 89 89 87 84 83 81 82 87 Dewpt 77 78 78 77 78 78 78 78 77 78 78 77 78 78 78 78 78 78 78 78 78 RH 80 88 91 88 77 72 70 75 80 85 91 85 77 70 70 75 82 85 91 88 75 Wind dir E NE E E SE SE SE SE SE SE SE E E E E E E E E E E Wind spd 19 19 17 14 18 19 19 18 17 18 18 18 17 18 18 17 18 19 19 19 19 Clouds B2 B2 B2 B2 OV OV B2 B2 B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 PoP 12hr 70 70 50 60 50 QPF 12hr 0.67 0.45 0.53 1.13 0.11 Rain shwrs C C L L L L C C C C C C C C L L C C C C C Tstms S S S S S S S S S S Heat index 93 91 89 88 98102103 99 93 92 90 90 98102103 99 94 92 90 91 99 Max heat 101 92 98 103 102 92 98 103 102 93 99 Date 08/04 Tue 08/05/25 Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 81 90 80 90 80 90 80 92 Temp 90 84 82 87 90 83 81 86 90 83 81 86 90 83 81 87 92 85 Dewpt 78 77 77 77 76 76 76 76 77 76 76 76 76 76 76 77 75 74 PWind dir E E E E E E E E E Wind char BZ BZ GN GN BZ GN GN BZ GN Avg clouds SC SC SC SC SC B1 B2 B1 B1 SC SC SC SC SC B1 B1 SC SC PoP 12hr 40 30 50 50 40 10 40 40 30 Rain shwrs C C C C C C C C C C S S S C C C C C $$ VIZ002-020800- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 PM AST Fri Aug 1 2025 Date 08/01/25 Sat 08/02/25 Sun 08/03/25 Mon 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 90 79 91 81 Temp 83 82 81 81 86 89 90 87 83 81 80 80 86 90 91 88 84 83 82 82 87 Dewpt 77 77 77 77 77 77 77 77 76 77 76 76 77 77 77 77 76 77 77 77 77 RH 82 85 88 88 75 68 66 72 80 88 88 88 75 66 64 70 77 82 85 85 72 Wind dir E E E E E SE SE SE E SE E E E E E E E E E E E Wind spd 14 14 12 12 16 16 16 14 13 14 14 14 16 17 17 17 14 17 16 16 17 Clouds B2 B2 B2 B2 SC SC B1 B1 B2 B2 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B1 PoP 12hr 60 50 50 60 50 QPF 12hr 0.54 0.25 0.45 1.03 0.10 Rain shwrs C C C L C C C C C C C C C C L L C C C C C Tstms S S S S S S Heat index 93 90 88 88 97102103 98 90 88 85 86 98104105100 93 92 89 90 99 Max heat 99 91 97 103 101 89 98 105 102 92 99 Date 08/04 Tue 08/05/25 Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 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 78 91 78 90 79 90 78 90 Temp 91 82 79 86 91 82 79 85 90 83 80 86 90 82 79 85 90 82 Dewpt 77 76 76 75 75 75 75 76 76 76 75 75 76 76 75 76 74 73 PWind dir E E E E E E E E E Wind char BZ GN GN GN GN GN GN GN BZ Avg clouds SC SC SC SC SC B1 B2 B1 B1 SC SC SC SC SC SC SC SC CL PoP 12hr 40 30 50 50 40 10 30 30 20 Rain shwrs C C C C C C C C C C S S S C C C S $$