Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
546 FOCA52 TJSJ 062103 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 PM AST Mon Oct 6 2025 PRZ001-070800- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 PM AST Mon Oct 6 2025 Date 10/06/25 Tue 10/07/25 Wed 10/08/25 Thu 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 91 77 92 77 Temp 82 80 79 78 85 90 91 84 81 79 78 77 85 91 92 85 82 80 78 77 85 Dewpt 75 75 74 75 75 76 76 75 75 76 75 75 75 75 75 75 75 75 75 75 75 RH 79 85 85 91 72 64 62 74 82 91 91 94 72 60 58 72 79 85 91 94 72 Wind dir E E E SE E E E SE SE S S S SE SE SE SE SE SE SE N SE Wind spd 8 8 5 5 4 8 10 10 5 4 3 4 5 11 16 11 5 3 3 3 3 Clouds SC B1 OV OV B2 B2 OV OV SC SC SC SC CL CL SC SC B1 B1 B1 B1 SC PoP 12hr 80 70 20 40 40 QPF 12hr 0.51 0.68 0.02 0.09 0.11 Rain shwrs S C D L L L L L S S S S S S C C C C C Tstms S S S S S S Heat index 88 85 94102103 92 87 84 94102103 93 88 84 93 Max heat 92 87 94 103 101 86 94 103 101 86 93 High Surf Y Y Y Y Date 10/09 Fri 10/10/25 Sat 10/11/25 Sun 10/12/25 Mon 10/13/25 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 91 77 91 78 92 Temp 91 82 79 85 91 82 79 85 91 81 78 85 91 82 79 86 92 82 Dewpt 77 76 75 76 76 75 75 75 76 75 75 75 75 75 74 75 75 75 PWind dir E SE SE S SE SE SE SE E Wind char GN LT LT LT GN LT GN LT GN Avg clouds B1 B1 SC SC SC B1 B1 B1 B1 B1 SC SC B1 B2 B2 B1 B1 SC PoP 12hr 50 30 40 40 40 30 60 50 40 Rain shwrs C C C C C C C C C C C C L L C C C S Tstms S S S S S S S S $$ PRZ002-070800- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 PM AST Mon Oct 6 2025 Date 10/06/25 Tue 10/07/25 Wed 10/08/25 Thu AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 77 89 78 89 78 Temp 81 79 78 77 84 88 89 84 81 80 79 78 84 88 89 84 81 80 79 78 84 Dewpt 76 76 76 76 77 77 77 77 76 77 76 76 77 78 77 77 77 76 76 76 77 RH 85 91 94 97 80 70 68 80 85 91 91 94 80 72 68 80 88 88 91 94 80 Wind dir NE NE NE E E E SE S SE SE SE S SE SE SE SE SE SE E SE SE Wind spd 9 8 6 5 4 8 8 5 4 6 5 5 6 10 12 10 9 6 5 4 5 Clouds B1 B2 OV OV B2 OV OV B2 B2 B2 B2 B2 SC SC SC SC B2 B2 B2 B2 B1 PoP 12hr 80 70 50 50 50 QPF 12hr 0.60 0.79 0.21 0.14 0.16 Rain shwrs C L D L L L L L C C C C S S C C C C C C C Tstms S S S S S S S S S Heat index 87 83 93100101 93 88 85 94102101 93 89 85 94 Max heat 91 86 93 102 100 87 94 102 100 88 94 High Surf Y Y Y Y Date 10/09 Fri 10/10/25 Sat 10/11/25 Sun 10/12/25 Mon 10/13/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 89 78 89 77 89 78 89 79 89 Temp 89 81 79 84 89 81 78 84 89 81 79 84 89 82 80 85 89 81 Dewpt 77 76 76 77 77 76 76 77 77 76 76 77 76 76 75 77 77 76 PWind dir SE E SE S S SE SE E E Wind char LT LT LT LT GN LT LT LT GN Avg clouds B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC B1 B2 B2 B1 SC SC PoP 12hr 40 40 40 40 50 30 60 50 30 Rain shwrs C C C C C C C C C C C C L L C C C S Tstms S S S S S S S S $$ PRZ007-070800- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 PM AST Mon Oct 6 2025 Date 10/06/25 Tue 10/07/25 Wed 10/08/25 Thu 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 77 89 76 Temp 81 79 77 76 84 89 90 84 81 79 78 77 84 88 89 83 80 78 77 76 84 Dewpt 76 75 73 73 76 78 79 78 77 76 74 74 77 78 78 77 77 75 74 72 76 RH 85 88 87 90 77 70 70 82 88 91 88 90 80 72 70 82 91 91 90 87 77 Wind dir NE NE NE NE NE E SE E NE NE NE E E SE SE SE E E NE NE E Wind spd 4 4 4 3 3 9 8 5 3 4 4 3 4 9 10 9 5 4 3 5 4 Clouds B1 SC SC SC SC B1 B2 SC SC SC SC SC CL CL CL CL SC SC SC SC SC PoP 12hr 40 50 10 30 30 QPF 12hr 0.08 0.28 0.01 0.01 0.06 Rain shwrs C S S S C C S S S S S C C C C S Tstms S Heat index 87 93103106 94 88 84 93102103 91 85 94 Max heat 93 85 93 106 104 87 93 103 101 84 94 Date 10/09 Fri 10/10/25 Sat 10/11/25 Sun 10/12/25 Mon 10/13/25 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 75 91 76 89 77 90 77 89 Temp 91 80 76 84 91 81 77 83 89 81 78 84 90 81 78 84 89 80 Dewpt 79 77 74 76 79 77 74 76 78 76 74 76 78 76 74 76 73 74 PWind dir SE NE E E SE E E E E Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC SC SC FW SC B1 SC SC B1 B1 SC SC SC SC SC SC SC SC PoP 12hr 30 10 60 20 60 20 20 30 30 Rain shwrs C C S S L L S S L L S S S S S C C S Tstms S S S S $$ PRZ008-070800- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 PM AST Mon Oct 6 2025 Date 10/06/25 Tue 10/07/25 Wed 10/08/25 Thu AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 76 87 75 88 76 Temp 79 78 77 76 82 86 87 81 79 77 76 75 82 87 88 82 80 78 77 76 83 Dewpt 75 75 74 73 75 77 76 75 75 74 74 73 75 76 76 75 74 75 74 72 75 RH 88 91 90 90 79 75 70 82 88 90 94 94 79 70 68 79 82 91 90 87 77 Wind dir E E E E E E NE E E E SE SE SE SW W NE NE E E E E Wind spd 13 12 11 10 9 9 4 1 2 4 3 3 6 2 5 4 4 1 1 3 4 Clouds SC SC SC B2 B1 SC OV OV B2 B2 B2 B2 FW FW B2 B2 FW FW FW FW FW PoP 12hr 50 100 60 50 5 QPF 12hr 0.14 1.89 0.11 0.62 0.01 Rain shwrs C C S C C S D D L L S S C C Tstms S S S S S S S Heat index 83 89 97 97 87 89 97 99 89 84 90 Max heat 88 89 98 95 89 99 97 90 High Surf Y Y Y Y Date 10/09 Fri 10/10/25 Sat 10/11/25 Sun 10/12/25 Mon 10/13/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 75 87 76 87 76 88 76 88 Temp 88 79 76 82 87 79 77 82 87 79 77 83 88 80 77 83 88 79 Dewpt 77 76 74 76 76 75 74 75 76 75 74 75 76 75 74 74 76 75 PWind dir NE E NE SE S SE E E E Wind char LT LT LT LT GN LT LT LT LT Avg clouds SC B1 SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B2 PoP 12hr 50 20 20 20 20 20 30 40 60 Rain shwrs C C S S S S S S S S S S C C C C L L Tstms S S S S $$ PRZ010-070800- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 PM AST Mon Oct 6 2025 Date 10/06/25 Tue 10/07/25 Wed 10/08/25 Thu 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 93 75 93 75 Temp 80 77 75 74 85 91 93 84 80 78 76 75 85 92 93 84 80 78 76 75 85 Dewpt 76 75 74 74 76 77 79 77 76 76 75 74 77 78 78 77 77 76 74 74 75 RH 88 94 97100 75 64 64 80 88 94 97 97 77 64 62 80 91 94 94 97 72 Wind dir NE NE NE E E E NW E NE E E E SE S S SE E E E E E Wind spd 10 9 8 5 3 2 4 2 1 4 4 5 5 3 9 6 4 4 3 4 4 Clouds B2 SC SC SC SC SC OV OV B1 B1 B1 B1 FW FW B2 B2 FW FW FW FW FW PoP 12hr 50 90 40 50 5 QPF 12hr 0.10 1.37 0.07 0.61 0.01 Rain shwrs C S S S C D D C C C C Tstms S S S S S Heat index 85 94105110 94 86 96107108 94 87 94 Max heat 92 94 110 108 84 96 109 106 84 94 High Surf Y Y Y Y Date 10/09 Fri 10/10/25 Sat 10/11/25 Sun 10/12/25 Mon 10/13/25 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 93 75 92 75 93 74 93 Temp 93 80 75 85 93 80 76 85 92 80 76 85 93 80 75 85 93 80 Dewpt 79 77 75 76 79 77 75 76 79 76 75 76 78 76 74 76 78 76 PWind dir SE E NW SE SE SE SE E SE Wind char LT LT LT LT GN GN LT LT LT Avg clouds SC B1 FW FW SC SC SC SC SC SC SC SC SC SC SC SC B1 B2 PoP 12hr 60 5 40 20 20 20 20 30 60 Rain shwrs L L S C C S S S S S S S S S C L L Tstms S S S S S S $$ VIZ001-070800- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 PM AST Mon Oct 6 2025 Date 10/06/25 Tue 10/07/25 Wed 10/08/25 Thu AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 82 91 82 91 82 Temp 85 84 83 82 87 90 91 87 85 84 83 82 87 90 91 87 85 84 83 82 87 Dewpt 77 78 77 77 77 78 78 78 78 78 77 77 77 78 77 77 77 77 77 78 77 RH 77 82 82 85 72 68 66 75 80 82 82 85 72 68 64 72 77 80 82 88 72 Wind dir NE NE E E E SE SE SE SE SE SE SE SE SE SE SE E E E E SE Wind spd 12 13 12 10 10 11 11 12 11 11 10 9 12 16 14 16 14 11 12 9 10 Clouds B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 SC SC SC SC B2 B2 B2 B2 B2 PoP 12hr 60 60 40 50 50 QPF 12hr 0.35 0.53 0.19 0.17 0.17 Rain shwrs C C L L L L L C C C C C C C C C C C C C C Tstms S S S S S S S Heat index 95 94 91 90 99105106 99 96 94 91 90 99105104 98 95 93 91 91 99 Max heat 99 95 99 106 105 95 99 105 103 94 99 High Surf Y Y Y Y Date 10/09 Fri 10/10/25 Sat 10/11/25 Sun 10/12/25 Mon 10/13/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 91 82 91 81 91 82 91 82 91 Temp 91 85 83 87 91 84 82 87 91 85 83 87 91 85 83 87 91 85 Dewpt 77 77 78 78 77 77 77 77 77 77 77 77 77 76 77 77 77 76 PWind dir SE E SE SE SE SE SE E E Wind char GN GN LT GN GN GN GN GN GN Avg clouds B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 SC B1 B1 SC B1 B1 SC FW PoP 12hr 50 50 50 40 50 40 40 40 20 Rain shwrs C C C C C C C C C C C C C C C C S S Tstms S S S S S S S S S S S $$ VIZ002-070800- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 PM AST Mon Oct 6 2025 Date 10/06/25 Tue 10/07/25 Wed 10/08/25 Thu 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 77 89 77 90 77 Temp 81 79 78 77 84 88 89 83 81 79 78 77 84 89 90 84 81 79 78 77 84 Dewpt 76 76 77 76 77 77 77 77 76 76 76 76 77 77 77 77 77 76 77 76 77 RH 85 91 97 97 80 70 68 82 85 91 94 97 80 68 66 80 88 91 97 97 80 Wind dir NE NE E E E SE SE SE SE SE SE SE SE SE SE E E E E E E Wind spd 10 10 10 9 9 11 11 9 8 8 8 8 10 13 13 14 11 9 9 8 10 Clouds B1 B2 B2 B2 B2 B2 B2 B1 SC SC SC SC SC SC SC SC B1 B1 B1 B1 B2 PoP 12hr 60 60 30 40 50 QPF 12hr 0.38 0.51 0.03 0.17 0.16 Rain shwrs C L L L L C L C S S S S C C C C C C C C C Tstms S S S S S S Heat index 87 84 93100101 92 87 83 94102103 93 88 84 94 Max heat 93 87 93 102 100 86 94 103 101 87 94 High Surf Y Y Y Y Date 10/09 Fri 10/10/25 Sat 10/11/25 Sun 10/12/25 Mon 10/13/25 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 77 89 77 90 78 90 Temp 90 82 79 85 90 81 78 84 89 81 78 84 90 82 79 85 90 82 Dewpt 77 76 76 77 77 76 76 77 77 76 76 77 77 76 76 77 77 75 PWind dir E E SE SE SE SE SE E E Wind char GN LT LT GN GN GN GN GN GN Avg clouds B2 B2 B2 B1 B1 SC SC B1 B1 B1 SC B1 B2 B2 B2 B1 SC FW PoP 12hr 60 50 40 40 50 60 60 60 20 Rain shwrs L L C C C C C C C C C L L L L L S S Tstms S S S S S S S S S $$