Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
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726 FOCA52 TJSJ 102103 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 PM AST Fri Oct 10 2025 PRZ001-110800- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 PM AST Fri Oct 10 2025 Date 10/10/25 Sat 10/11/25 Sun 10/12/25 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 91 79 92 78 Temp 82 80 79 79 85 90 91 85 82 80 79 79 86 91 92 85 82 80 79 78 86 Dewpt 75 76 75 75 75 76 76 76 75 75 75 75 75 76 75 75 75 75 74 74 75 RH 79 88 88 88 72 64 62 75 79 85 88 88 70 62 58 72 79 85 85 88 70 Wind dir S S S S S S S S S S S S SE SE E E SE E E E E Wind spd 3 4 5 6 5 6 9 8 8 5 5 5 4 6 11 10 8 6 6 6 8 Clouds B1 B2 B2 B1 SC SC B2 OV SC SC SC SC B2 B2 SC SC SC SC SC SC SC PoP 12hr 60 80 50 50 30 QPF 12hr 0.27 1.05 0.21 0.32 0.11 Rain shwrs C C L C C S C D C C C C C C C C C C C C S Tstms S S S S Heat index 89 85 93101103 94 89 85 95103103 93 89 85 95 Max heat 94 87 93 103 102 87 95 104 102 89 95 Date 10/13 Tue 10/14/25 Wed 10/15/25 Thu 10/16/25 Fri 10/17/25 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 79 91 78 92 78 92 79 90 Temp 92 82 79 85 91 82 79 86 92 82 78 84 90 82 79 84 88 82 Dewpt 75 74 74 74 75 74 74 74 75 75 74 74 75 75 74 75 75 75 PWind dir E E E SE SE S SE S SW Wind char GN LT GN LT LT LT LT LT LT Avg clouds SC SC SC SC SC SC CL FW SC B1 SC SC B1 B1 FW FW SC SC PoP 12hr 20 10 20 20 50 20 60 5 30 Rain shwrs S S S S S S S C C S S L L S S C C Tstms S S S S $$ PRZ002-110800- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 PM AST Fri Oct 10 2025 Date 10/10/25 Sat 10/11/25 Sun 10/12/25 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 76 90 77 90 76 Temp 82 80 79 78 85 89 90 85 82 81 80 79 85 89 90 84 82 80 79 78 84 Dewpt 77 76 75 76 77 78 78 78 76 76 76 76 77 77 76 76 76 75 75 76 77 RH 85 88 88 94 77 70 68 80 82 85 88 91 77 68 64 77 82 85 88 94 80 Wind dir SW SW S S S S S S S S S S SE SE SE SE E E E E E Wind spd 4 5 9 11 10 10 11 9 8 6 8 6 5 8 8 6 8 10 8 9 9 Clouds B2 B2 B2 B2 B1 B2 B2 OV B2 B2 B2 B2 B2 B2 SC SC SC SC SC SC SC PoP 12hr 60 60 50 50 30 QPF 12hr 0.51 0.97 0.52 0.31 0.10 Rain shwrs C C L L C C L L C C C C C C S S S S S S C Tstms S S S S S S S S S S S Heat index 90 86 95102104 96 89 88 86 95101102 93 89 85 93 Max heat 95 88 95 104 103 89 95 102 100 87 93 Date 10/13 Tue 10/14/25 Wed 10/15/25 Thu 10/16/25 Fri 10/17/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 89 77 89 76 89 75 88 76 90 Temp 89 81 79 84 89 81 79 84 89 81 78 84 88 81 78 84 87 81 Dewpt 76 76 75 76 76 76 75 76 75 75 75 76 76 76 75 77 76 76 PWind dir E E E E SE S S S S Wind char GN GN GN LT LT LT LT LT LT Avg clouds SC SC SC SC SC FW CL FW SC SC SC SC SC B1 SC SC SC SC PoP 12hr 30 20 20 30 30 20 50 20 40 Rain shwrs C S S S S S C C C S S C C S S S C Tstms S S $$ PRZ007-110800- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 PM AST Fri Oct 10 2025 Date 10/10/25 Sat 10/11/25 Sun 10/12/25 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 77 90 77 90 76 Temp 80 78 77 77 84 89 90 84 81 79 78 77 84 89 90 83 80 78 77 76 84 Dewpt 73 73 73 73 73 72 71 73 72 72 72 72 72 72 72 73 72 72 72 72 72 RH 79 85 87 87 70 57 54 70 74 79 82 85 67 57 56 72 77 82 85 87 67 Wind dir NW NW SW E E S S S NE NE E E E SE SE SE E NE NE NE E Wind spd 3 1 1 2 2 6 6 4 3 5 5 4 5 6 6 6 4 4 4 4 3 Clouds B2 SC CL CL B1 B1 B2 B2 SC SC B1 B1 SC SC SC SC SC SC SC SC FW PoP 12hr 50 50 40 30 30 QPF 12hr 0.30 0.36 0.25 0.23 0.10 Rain shwrs C S C C C C C C C C S S S S C C C C Tstms S S S Heat index 84 90 96 96 90 85 90 96 97 89 84 90 Max heat 89 84 90 97 96 84 90 97 96 84 90 Date 10/13 Tue 10/14/25 Wed 10/15/25 Thu 10/16/25 Fri 10/17/25 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 90 75 90 76 90 77 89 Temp 90 80 77 84 90 80 77 84 90 80 77 83 89 80 77 83 87 80 Dewpt 73 73 71 70 70 68 69 70 71 69 69 69 71 73 72 74 71 73 PWind dir E NE E E SE E S S S Wind char GN LT LT LT LT LT LT LT LT Avg clouds SC SC SC FW FW FW FW SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 20 5 10 30 30 20 20 20 30 Rain shwrs S S S S S S C C S S S S S S S S C $$ PRZ008-110800- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 PM AST Fri Oct 10 2025 Date 10/10/25 Sat 10/11/25 Sun 10/12/25 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 77 88 76 88 76 Temp 79 78 77 77 83 87 88 82 80 78 77 76 83 87 88 82 80 78 77 76 82 Dewpt 75 75 74 73 75 76 77 75 75 75 74 73 75 76 76 75 75 75 74 71 74 RH 88 91 90 87 77 70 70 79 85 91 90 90 77 70 68 79 85 91 90 85 77 Wind dir S S S S S S S S S S S SE SE SE NE NE E E E E E Wind spd 4 6 9 9 10 11 11 10 8 5 4 4 5 3 5 5 5 4 3 6 10 Clouds CL SC SC SC SC SC SC SC SC SC SC SC SC SC OV OV B2 B2 B2 B2 CL PoP 12hr 20 30 20 70 60 QPF 12hr 0.04 0.09 0.10 1.16 0.21 Rain shwrs S S S S S S C S S S S S S L L L L L L Tstms S S S S S S Heat index 90 98100 88 85 90 98 99 88 85 88 Max heat 88 90 100 97 90 99 97 88 Date 10/13 Tue 10/14/25 Wed 10/15/25 Thu 10/16/25 Fri 10/17/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 87 77 88 75 88 76 88 77 87 Temp 87 79 77 83 88 80 77 83 88 80 77 82 87 80 77 82 85 80 Dewpt 76 75 74 75 75 74 73 74 75 74 74 74 76 74 73 75 76 74 PWind dir E E E SE S S SW S SW Wind char GN GN LT LT LT LT LT LT LT Avg clouds SC B1 B1 SC SC B2 SC SC SC B1 SC SC SC SC SC FW FW SC PoP 12hr 50 40 60 30 50 10 20 10 30 Rain shwrs C C C C L L C C C C S S S S S S S C Tstms S S S S S S $$ PRZ010-110800- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 PM AST Fri Oct 10 2025 Date 10/10/25 Sat 10/11/25 Sun 10/12/25 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 92 75 92 74 Temp 80 78 76 76 85 91 92 84 80 78 76 75 85 91 92 83 79 77 75 74 84 Dewpt 76 76 75 75 77 79 78 77 76 76 75 74 77 78 79 77 76 75 74 73 75 RH 88 94 97 97 77 68 64 80 88 94 97 97 77 66 66 82 91 94 97 97 74 Wind dir S SE S S S S S S S S SE SE SE SE SE E E E E E E Wind spd 4 5 8 9 9 11 12 11 8 8 8 8 8 10 6 2 4 4 4 5 3 Clouds FW FW CL FW SC SC SC SC SC SC B1 B1 SC SC OV OV B2 B2 B2 B2 CL PoP 12hr 10 30 40 70 60 QPF 12hr 0.03 0.16 0.23 1.17 0.20 Rain shwrs S S S S C S S C C S S L L L L L L Tstms S S S S S S Heat index 86 95107107 94 85 96106108 92 92 Max heat 94 95 108 104 96 108 105 92 Date 10/13 Tue 10/14/25 Wed 10/15/25 Thu 10/16/25 Fri 10/17/25 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 92 73 92 74 93 75 92 Temp 92 79 75 84 92 79 75 84 92 79 75 84 92 79 75 84 89 79 Dewpt 78 76 74 75 77 76 74 75 77 75 74 76 77 76 74 76 77 76 PWind dir E E SE E S SE S S S Wind char LT LT LT LT LT LT LT LT GN Avg clouds SC B2 B2 SC FW B1 SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 60 50 50 30 30 10 20 10 30 Rain shwrs L L C C C C C C C C S S S S S S S C Tstms S S S S $$ VIZ001-110800- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 PM AST Fri Oct 10 2025 Date 10/10/25 Sat 10/11/25 Sun 10/12/25 Mon AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 81 91 78 91 80 Temp 84 83 82 81 87 90 91 87 85 84 83 82 87 90 91 86 84 83 82 81 87 Dewpt 77 78 77 78 78 79 78 78 77 77 77 77 77 77 77 76 76 77 76 76 77 RH 80 85 85 91 75 70 66 75 77 80 82 85 72 66 64 72 77 82 82 85 72 Wind dir SW SW S S S S S S S S S SE SE SE SE E E E E E E Wind spd 13 14 17 18 16 13 13 11 12 13 12 9 9 11 11 11 13 14 17 14 13 Clouds B2 B2 OV OV B2 B2 OV B2 B2 B2 B2 B2 B2 B2 SC SC SC SC SC SC SC PoP 12hr 70 70 60 60 10 QPF 12hr 0.78 0.65 0.53 0.34 0.04 Rain shwrs L L L L L L L L C C C C L L S S S S S S S Tstms S S S S S S S S S S S S Heat index 94 93 90 89100105106100 95 94 92 90 99103105 96 93 92 89 87 98 Max heat 99 94 100 107 105 94 99 105 103 93 98 Date 10/13 Tue 10/14/25 Wed 10/15/25 Thu 10/16/25 Fri 10/17/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 91 79 91 82 90 81 90 81 90 Temp 91 84 82 87 91 85 83 86 90 84 82 86 90 84 82 86 88 84 Dewpt 77 77 76 77 76 76 76 76 76 76 76 77 77 76 77 78 77 76 PWind dir E E E E SE S S S S Wind char GN GN GN GN LT LT LT LT GN Avg clouds SC SC SC SC SC FW CL FW SC SC SC SC SC SC SC SC SC SC PoP 12hr 10 20 20 20 20 20 20 20 40 Rain shwrs S S S S S S S S S S S S S S S S C $$ VIZ002-110800- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 PM AST Fri Oct 10 2025 Date 10/10/25 Sat 10/11/25 Sun 10/12/25 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 78 90 76 Temp 81 80 80 80 84 88 89 84 81 80 79 78 85 89 90 84 82 80 79 78 84 Dewpt 77 77 77 77 78 77 78 77 76 76 76 76 76 76 76 75 76 75 75 75 76 RH 88 91 91 91 82 70 70 80 85 88 91 94 75 66 64 74 82 85 88 91 77 Wind dir S S S S S S S SE SE SE SE SE E E E E E E E E E Wind spd 11 14 16 14 13 13 12 10 9 10 10 9 8 10 10 11 11 12 12 10 11 Clouds OV B2 OV OV B2 B2 OV OV B2 B2 B2 B2 B2 B2 B2 B2 SC SC SC SC SC PoP 12hr 70 70 60 60 30 QPF 12hr 0.78 0.65 0.53 0.49 0.06 Rain shwrs L L L L L L L L C C C C L L L L S S S S C Tstms S S S S S S S S S S S S S S Heat index 88 86 86 86 94100102 93 87 86 94100101 92 89 85 93 Max heat 94 86 94 102 101 87 94 102 100 87 93 Date 10/13 Tue 10/14/25 Wed 10/15/25 Thu 10/16/25 Fri 10/17/25 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 76 90 78 90 77 89 77 89 Temp 89 81 78 84 90 82 79 85 90 81 78 84 89 81 78 84 87 81 Dewpt 76 76 76 77 76 74 75 76 77 75 75 76 77 76 76 77 77 76 PWind dir E E E E SE S S S S Wind char GN GN GN LT LT LT LT LT LT Avg clouds SC SC SC SC SC FW CL FW SC SC SC SC SC SC SC SC SC SC PoP 12hr 30 10 10 10 20 20 20 20 20 Rain shwrs C S S S S S S S S S S S S S S S S $$