Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
523 FOCA52 TJSJ 100903 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 AM AST Wed Dec 10 2025 PRZ001-102000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 AM AST Wed Dec 10 2025 Date Wed 12/10/25 Thu 12/11/25 Fri 12/12/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 74 88 75 87 Temp 79 85 87 81 78 76 75 74 80 86 88 82 79 77 76 75 80 86 87 81 78 Dewpt 72 73 73 73 72 72 71 72 72 71 71 71 71 72 72 72 71 72 72 72 73 RH 79 67 63 77 82 87 87 93 77 61 57 69 77 85 87 90 74 63 61 74 85 Wind dir SE E E E E SE SE E SE E E E SE E E E E E E E E Wind spd 5 14 17 12 10 10 8 9 10 13 13 10 8 8 8 9 8 14 14 10 8 Clouds SC B1 B1 B2 SC SC SC FW FW SC SC FW SC SC SC SC CL CL FW FW SC PoP 12hr 60 50 30 30 30 QPF 12hr 0.63 0.20 0.08 0.06 0.02 Rain shwrs C C C L C C C S S C S S C C S S S S C Heat index 92 94 85 83 92 93 86 83 92 93 85 Max heat 95 92 83 94 91 83 94 91 Date Sat 12/13/25 Sun 12/14/25 Mon 12/15/25 Tue 12/16/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 74 87 75 88 74 87 74 87 Temp 75 79 87 78 76 80 88 78 75 79 87 78 75 79 87 77 Dewpt 72 73 72 73 72 72 72 72 72 71 72 72 71 71 72 72 PWind dir E E E E SE E E E Wind char GN BZ GN GN LT GN LT GN Avg clouds SC SC SC B1 B2 B1 B1 B1 SC SC B1 B1 SC SC B1 B1 PoP 12hr 30 50 50 40 30 50 40 50 Rain shwrs C C C C C C C C C C C C S C C C $$ PRZ002-102000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 AM AST Wed Dec 10 2025 Date Wed 12/10/25 Thu 12/11/25 Fri 12/12/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 85 75 85 75 85 Temp 78 84 85 80 78 77 76 75 79 84 85 80 78 77 76 75 79 84 85 80 78 Dewpt 74 75 75 75 74 72 73 73 74 73 73 73 73 73 72 72 74 74 75 74 74 RH 88 74 72 85 88 85 90 94 85 70 67 79 85 87 87 90 85 72 72 82 88 Wind dir E E E E E E E E SE SE SE E E E E E E E E E E Wind spd 8 16 17 14 14 13 11 13 16 13 11 11 10 10 12 9 9 14 13 11 10 Clouds B1 B2 B2 B2 B2 B2 SC SC SC SC SC SC SC SC SC SC FW FW FW FW B2 PoP 12hr 60 60 50 30 50 QPF 12hr 0.66 0.30 0.15 0.06 0.03 Rain shwrs C L L L L L C C C C C S C C S S S S S S C Heat index 92 93 85 90 91 84 91 93 84 Max heat 94 91 92 89 93 91 Date Sat 12/13/25 Sun 12/14/25 Mon 12/15/25 Tue 12/16/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 85 76 86 75 85 74 85 Temp 76 79 85 79 77 80 86 78 76 79 85 77 75 78 85 77 Dewpt 74 75 75 74 73 74 75 73 73 73 73 73 72 73 74 73 PWind dir E E E E E E E E Wind char GN BZ GN GN GN GN LT GN Avg clouds B2 B1 B1 B1 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B2 B1 PoP 12hr 50 50 50 50 40 40 60 60 Rain shwrs C C C C C C C C C C C C C L L C $$ PRZ007-102000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 AM AST Wed Dec 10 2025 Date Wed 12/10/25 Thu 12/11/25 Fri 12/12/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 72 86 72 88 Temp 77 84 86 79 76 75 73 72 78 84 86 79 76 75 73 72 78 86 88 81 77 Dewpt 68 69 71 71 70 69 68 67 70 67 67 70 70 69 68 69 69 70 72 69 69 RH 74 61 61 77 82 82 84 84 76 57 53 74 82 82 84 90 74 59 59 67 76 Wind dir NE E E E E E NE NE E E SE E E NE NE NE NE E E E NE Wind spd 4 12 12 11 10 8 5 4 10 14 12 8 5 4 4 4 6 14 14 10 5 Wind gust 25 25 Clouds CL SC FW FW SC SC FW CL FW FW FW CL FW FW FW FW FW FW CL CL FW PoP 12hr 20 30 10 10 5 QPF 12hr 0.04 0.09 0.03 0.03 0.01 Rain shwrs S S C S S S S S S S S S S Heat index 88 91 87 89 91 94 83 Max heat 91 89 89 87 94 91 Date Sat 12/13/25 Sun 12/14/25 Mon 12/15/25 Tue 12/16/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 73 88 73 88 72 87 71 86 Temp 74 79 88 77 74 79 88 77 73 78 87 76 72 77 86 75 Dewpt 69 69 66 68 67 68 71 70 69 69 69 70 68 68 69 70 PWind dir NE E NE E E E NE E Wind char LT GN LT GN LT LT LT LT Avg clouds FW FW FW FW FW FW SC SC FW FW SC SC FW FW SC SC PoP 12hr 5 5 5 20 5 40 5 40 Rain shwrs S S C C S S C C $$ PRZ008-102000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 AM AST Wed Dec 10 2025 Date Wed 12/10/25 Thu 12/11/25 Fri 12/12/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 85 72 86 72 86 Temp 76 83 85 79 76 74 73 72 78 84 86 79 76 75 73 72 78 84 86 79 76 Dewpt 70 72 75 74 73 71 70 68 71 73 74 73 72 71 70 69 71 73 74 74 73 RH 82 70 72 85 90 90 90 87 79 70 68 82 87 87 90 90 79 70 68 85 90 Wind dir E E E E E E E E E E NE NE E E E E E E NE E E Wind spd 5 10 14 4 4 6 6 8 10 6 9 4 2 8 10 12 11 9 13 13 10 Clouds FW CL SC B2 SC SC SC FW FW CL FW FW CL CL CL CL CL CL FW FW SC PoP 12hr 60 40 10 5 10 QPF 12hr 0.55 0.12 0.03 0.01 0.03 Rain shwrs C L C C S S S S S S S S Heat index 89 92 91 93 91 93 Max heat 93 90 93 90 94 91 Date Sat 12/13/25 Sun 12/14/25 Mon 12/15/25 Tue 12/16/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 72 87 73 87 71 85 71 85 Temp 73 78 87 77 74 79 87 76 72 77 85 75 72 77 85 75 Dewpt 71 73 74 72 71 71 74 72 70 70 73 73 70 70 73 72 PWind dir E E E E E NE E NE Wind char GN BZ GN GN LT LT LT LT Avg clouds SC FW SC SC FW FW SC B1 FW FW SC SC FW FW SC SC PoP 12hr 5 30 5 50 5 40 5 40 Rain shwrs S S C C S S C C C C C C $$ PRZ010-102000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 AM AST Wed Dec 10 2025 Date Wed 12/10/25 Thu 12/11/25 Fri 12/12/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 90 70 91 70 91 Temp 77 88 89 80 76 74 71 70 78 89 90 81 76 74 71 70 78 89 90 81 77 Dewpt 70 74 75 75 73 72 71 70 71 75 73 73 72 72 70 69 71 73 75 74 73 RH 79 63 64 85 90 93100100 79 64 58 77 87 93 97 97 79 59 62 79 87 Wind dir E E S SE E E E E E SE SE E E E E E E E NE E E Wind spd 5 2 3 2 3 4 5 5 5 8 8 8 4 4 6 6 4 2 8 2 4 Clouds CL CL SC SC FW FW CL FW CL CL FW SC CL CL CL CL CL CL SC SC CL PoP 12hr 20 10 40 5 30 QPF 12hr 0.09 0.04 0.04 0.01 0.05 Rain shwrs S S S S S S C C C Heat index 96100 85 99 99 85 97101 86 Max heat 100 96 101 95 101 97 Date Sat 12/13/25 Sun 12/14/25 Mon 12/15/25 Tue 12/16/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 71 92 71 92 70 90 69 90 Temp 72 79 91 77 72 79 91 76 72 78 89 75 70 77 89 76 Dewpt 71 73 75 72 70 72 73 73 70 71 73 72 70 70 74 72 PWind dir E E E E E E E E Wind char LT LT LT LT LT LT LT LT Avg clouds CL FW SC SC FW FW SC SC CL FW SC B1 FW FW SC B1 PoP 12hr 5 30 0 50 0 50 5 50 Rain shwrs C C C C C C C C $$ VIZ001-102000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 AM AST Wed Dec 10 2025 Date Wed 12/10/25 Thu 12/11/25 Fri 12/12/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 78 88 78 89 Temp 82 87 88 83 81 80 79 78 82 87 88 83 81 80 79 78 82 88 89 84 81 Dewpt 76 77 76 75 74 74 75 75 74 75 75 74 74 75 74 74 75 76 75 76 75 RH 82 72 68 77 79 82 88 91 77 68 66 74 79 85 85 88 79 68 64 77 82 Wind dir E E E E E E E E E SE SE E E E E E E E E E E Wind spd 19 21 23 20 20 18 18 23 23 18 16 17 16 19 17 14 13 17 16 18 18 Clouds B1 B2 B2 B2 SC FW SC SC SC SC SC FW SC SC CL CL FW FW FW FW SC PoP 12hr 60 50 50 20 30 QPF 12hr 0.63 0.22 0.10 0.02 0.03 Rain shwrs C C L L C S C C C S S S S S S S S S C Heat index 89 98 98 91 86 84 88 96 97 90 86 84 89 98 99 92 87 Max heat 89 99 96 85 88 98 95 86 89 99 97 Date Sat 12/13/25 Sun 12/14/25 Mon 12/15/25 Tue 12/16/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 78 88 79 88 78 88 77 88 Temp 79 82 88 82 80 83 88 81 79 82 88 80 78 81 88 80 Dewpt 75 75 76 74 75 76 75 74 74 74 74 74 74 75 74 74 PWind dir E E E E E E E E Wind char BZ BZ BZ BZ BZ GN GN GN Avg clouds SC B1 B1 SC B2 B2 B1 SC B1 B1 B1 B1 B2 B2 B2 B1 PoP 12hr 40 50 50 50 40 50 60 60 Rain shwrs C C C C C C C C C C C C C L L C $$ VIZ002-102000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 AM AST Wed Dec 10 2025 Date Wed 12/10/25 Thu 12/11/25 Fri 12/12/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 75 87 75 87 Temp 78 85 86 81 78 77 76 75 80 86 87 81 78 77 76 75 80 86 87 81 78 Dewpt 75 74 74 74 72 73 73 73 72 72 73 73 73 73 72 72 74 74 73 74 73 RH 91 70 68 79 82 87 90 94 77 63 63 77 85 87 87 90 82 68 63 79 85 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 18 20 18 16 14 17 20 19 17 14 16 13 16 13 11 14 18 14 14 14 Clouds B2 B2 B2 B2 SC CL FW SC SC CL FW FW FW FW CL CL FW FW FW FW SC PoP 12hr 60 40 30 10 20 QPF 12hr 0.63 0.14 0.04 0.02 0.03 Rain shwrs C L L C C S C C S S S S S S S S S Heat index 92 94 85 83 92 94 86 84 93 94 85 Max heat 94 91 83 94 92 84 95 92 Date Sat 12/13/25 Sun 12/14/25 Mon 12/15/25 Tue 12/16/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 74 87 75 87 74 87 74 86 Temp 75 79 87 78 76 80 87 78 75 79 87 78 75 79 86 77 Dewpt 73 74 74 73 73 74 73 73 73 73 73 73 73 73 73 73 PWind dir E E E E E E E E Wind char BZ BZ BZ BZ GN GN GN GN Avg clouds SC SC SC SC SC SC SC SC SC SC SC B1 B2 B2 B2 B1 PoP 12hr 40 40 20 20 20 50 60 60 Rain shwrs S C C S S S S S S S C C C L L C $$