Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
910 FOCA52 TJSJ 102103 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 PM AST Wed Dec 10 2025 PRZ001-110800- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 PM AST Wed Dec 10 2025 Date 12/10/25 Thu 12/11/25 Fri 12/12/25 Sat 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 88 75 87 74 Temp 78 76 75 74 80 86 88 82 79 77 76 75 80 86 87 81 78 76 75 74 79 Dewpt 72 72 71 72 72 71 71 71 71 72 72 72 71 72 72 72 73 73 72 73 73 RH 82 87 87 93 77 61 57 69 77 85 87 90 74 63 61 74 85 90 90 97 82 Wind dir E SE SE SE SE SE E E E E E E E E E E E E E E E Wind spd 9 10 6 8 11 13 13 11 9 6 6 8 9 16 16 11 9 9 9 8 9 Clouds SC SC SC FW FW SC SC FW SC SC SC SC CL CL FW FW SC SC SC SC SC PoP 12hr 50 30 30 30 30 QPF 12hr 0.20 0.08 0.07 0.02 0.06 Rain shwrs C C C S S C S S C C S S S S C C C C S Heat index 83 92 93 86 83 92 93 85 83 Max heat 85 83 94 91 83 94 91 83 Date 12/13 Sun 12/14/25 Mon 12/15/25 Tue 12/16/25 Wed 12/17/25 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 75 88 74 87 74 87 73 87 Temp 87 78 76 80 88 78 75 79 87 78 75 79 87 77 74 79 87 78 Dewpt 72 73 72 72 72 72 72 71 72 72 71 71 72 72 72 72 72 72 PWind dir E E E SE E SE E E E Wind char GN LT GN LT GN LT LT LT GN Avg clouds SC B1 B2 B1 B1 B1 SC SC B1 B1 SC SC B1 B1 B1 B1 B1 B2 PoP 12hr 50 50 40 30 50 40 50 40 60 Rain shwrs C C C C C C C C C C S C C C C C L L $$ PRZ002-110800- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 PM AST Wed Dec 10 2025 Date 12/10/25 Thu 12/11/25 Fri 12/12/25 Sat AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 75 85 75 85 75 Temp 78 77 76 75 79 84 85 80 78 77 76 75 79 84 85 80 78 77 76 75 79 Dewpt 74 72 73 73 74 73 73 73 73 73 72 72 74 74 75 74 74 74 74 74 75 RH 88 85 90 94 85 70 67 79 85 87 87 90 85 72 72 82 88 90 94 97 88 Wind dir E E E E SE SE SE E E E E E E E E E E E E E E Wind spd 14 13 12 13 16 14 12 12 9 10 10 10 11 17 13 12 10 11 11 11 13 Clouds B2 B2 SC SC SC SC SC SC SC SC SC SC FW FW FW FW B2 B2 B2 B2 B1 PoP 12hr 60 50 30 50 50 QPF 12hr 0.30 0.15 0.06 0.03 0.10 Rain shwrs L L C C C C C S C C S S S S S S C C C C C Heat index 90 91 84 91 93 84 Max heat 85 92 89 93 91 Date 12/13 Sun 12/14/25 Mon 12/15/25 Tue 12/16/25 Wed 12/17/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 85 76 86 75 85 74 85 74 85 Temp 85 79 77 80 86 78 76 79 85 77 75 78 85 77 75 78 85 78 Dewpt 75 74 73 74 75 73 73 73 73 73 72 73 74 73 72 73 73 72 PWind dir E E E E E E E E E Wind char BZ GN GN GN LT LT LT LT LT Avg clouds B1 B1 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B2 B1 B2 B2 B2 B1 PoP 12hr 50 50 50 40 40 60 60 50 50 Rain shwrs C C C C C C C C C C C L L C C C C C $$ PRZ007-110800- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 PM AST Wed Dec 10 2025 Date 12/10/25 Thu 12/11/25 Fri 12/12/25 Sat 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 72 86 72 88 73 Temp 76 75 73 72 78 84 86 79 76 75 73 72 78 86 88 81 77 76 74 73 79 Dewpt 70 69 68 67 70 67 67 70 70 69 68 69 69 70 72 69 69 68 69 69 69 RH 82 82 84 84 76 57 53 74 82 82 84 90 74 59 59 67 76 76 84 87 72 Wind dir E E NE NE E E SE E NE NE NE NE E E E E E E NE E E Wind spd 10 9 8 5 8 13 12 9 5 4 4 5 5 14 17 11 6 5 5 5 5 Wind gust 24 25 28 Clouds SC SC FW CL FW FW FW CL SC SC FW FW FW FW CL CL FW FW FW FW FW PoP 12hr 30 10 10 5 5 QPF 12hr 0.09 0.03 0.02 0.01 0.01 Rain shwrs S C S S S S S S S S S S Heat index 87 89 91 94 83 Max heat 89 87 94 91 Date 12/13 Sun 12/14/25 Mon 12/15/25 Tue 12/16/25 Wed 12/17/25 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 73 88 72 87 71 86 71 87 Temp 88 77 74 79 88 77 73 78 87 76 72 77 86 75 72 77 87 76 Dewpt 66 68 67 68 71 70 69 69 69 70 68 68 69 70 67 66 70 70 PWind dir E E E E E NE E NE E Wind char GN LT GN LT LT LT LT LT GN Avg clouds FW FW FW FW SC SC FW FW SC SC FW FW SC SC FW FW SC SC PoP 12hr 5 5 20 5 40 5 40 5 40 Rain shwrs S S C C S S C C C C $$ PRZ008-110800- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 PM AST Wed Dec 10 2025 Date 12/10/25 Thu 12/11/25 Fri 12/12/25 Sat AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 72 86 72 86 72 Temp 76 74 73 72 78 84 86 79 76 75 73 72 78 84 86 79 76 75 73 72 78 Dewpt 73 71 70 68 71 73 74 73 72 71 70 69 71 73 74 74 73 72 71 70 73 RH 90 90 90 87 79 70 68 82 87 87 90 90 79 70 68 85 90 90 93 93 85 Wind dir E E E E E E NE E SE E E E E E NE E E E E E E Wind spd 3 6 8 6 8 5 9 6 2 5 11 13 11 10 13 14 10 10 12 12 12 Clouds SC SC SC FW FW CL FW FW FW FW CL CL CL CL FW FW SC SC SC SC FW PoP 12hr 40 10 5 10 5 QPF 12hr 0.12 0.03 0 0.03 0.01 Rain shwrs C C S S S S S S S S S S S Heat index 91 93 91 93 Max heat 93 90 94 91 Date 12/13 Sun 12/14/25 Mon 12/15/25 Tue 12/16/25 Wed 12/17/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 87 73 87 71 85 71 85 71 85 Temp 87 77 74 79 87 76 72 77 85 75 72 77 85 75 72 77 85 76 Dewpt 74 72 71 71 74 72 70 70 73 73 70 70 73 72 71 71 74 72 PWind dir E E E E NE E E E E Wind char BZ GN GN LT LT LT LT LT BZ Avg clouds SC SC FW FW SC B1 FW FW SC SC FW FW SC SC SC SC SC B1 PoP 12hr 30 5 50 5 40 5 40 10 50 Rain shwrs C C S S C C C C C C S S C C $$ PRZ010-110800- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 PM AST Wed Dec 10 2025 Date 12/10/25 Thu 12/11/25 Fri 12/12/25 Sat 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 70 91 70 91 71 Temp 76 74 71 70 78 89 90 81 76 74 71 70 78 89 90 81 77 75 72 71 79 Dewpt 73 72 71 70 71 75 73 73 72 72 70 69 71 73 75 74 73 72 71 70 73 RH 90 93100100 79 64 58 77 87 93 97 97 79 59 62 79 87 90 97 97 82 Wind dir E E E E E SE SE SE NE NE NE E E E NE E E E E E E Wind spd 2 5 5 4 4 4 3 2 2 3 6 6 4 2 6 3 5 6 6 5 6 Clouds FW FW CL FW CL CL FW SC FW FW CL CL CL CL SC SC CL CL CL CL FW PoP 12hr 10 40 5 30 5 QPF 12hr 0.04 0.04 0 0.05 0 Rain shwrs S S S S C C C Heat index 99 99 85 97101 86 83 Max heat 85 101 95 101 97 83 Date 12/13 Sun 12/14/25 Mon 12/15/25 Tue 12/16/25 Wed 12/17/25 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 71 92 70 90 69 90 70 90 Temp 91 77 72 79 91 76 72 78 89 75 70 77 89 76 71 78 89 76 Dewpt 75 72 70 72 73 73 70 71 73 72 70 70 74 72 70 72 74 72 PWind dir E E E E E E E E E Wind char LT LT LT LT LT LT LT LT GN Avg clouds SC SC FW FW SC SC CL FW SC B1 FW FW SC B1 FW FW SC B1 PoP 12hr 30 0 50 0 50 5 50 5 60 Rain shwrs C C C C C C C C L L $$ VIZ001-110800- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 PM AST Wed Dec 10 2025 Date 12/10/25 Thu 12/11/25 Fri 12/12/25 Sat AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 78 88 78 89 78 Temp 81 80 79 78 82 87 88 83 81 80 79 78 82 88 89 84 81 80 79 78 82 Dewpt 74 74 75 75 74 75 75 74 74 75 74 74 75 76 75 76 75 75 75 75 75 RH 79 82 88 91 77 68 66 74 79 85 85 88 79 68 64 77 82 85 88 91 79 Wind dir E E E E SE SE E E E E E E E E E E E E E E E Wind spd 20 19 19 23 21 19 18 16 16 17 17 13 17 20 17 17 17 17 17 18 20 Clouds SC FW SC SC SC SC SC FW SC SC CL CL FW FW FW FW SC SC SC SC B1 PoP 12hr 50 50 10 30 40 QPF 12hr 0.22 0.10 0.02 0.03 0.07 Rain shwrs C S C C C S S S S S S S S S C C C C C Heat index 86 84 88 96 97 90 86 84 89 98 99 92 87 85 89 Max heat 91 85 88 98 95 86 89 99 97 86 89 Date 12/13 Sun 12/14/25 Mon 12/15/25 Tue 12/16/25 Wed 12/17/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 79 88 78 88 77 88 77 88 Temp 88 82 80 83 88 81 79 82 88 80 78 81 88 80 78 81 88 80 Dewpt 76 74 75 76 75 74 74 74 74 74 74 75 74 74 74 74 74 73 PWind dir E E E E E E E E E Wind char BZ BZ BZ GN GN GN GN GN GN Avg clouds B1 SC B2 B2 B1 SC B1 B1 B1 B1 B2 B2 B2 B1 B2 B1 B1 B1 PoP 12hr 50 50 50 40 50 60 60 50 40 Rain shwrs C C C C C C C C C C C L L C C C C C $$ VIZ002-110800- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 PM AST Wed Dec 10 2025 Date 12/10/25 Thu 12/11/25 Fri 12/12/25 Sat 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 75 87 74 Temp 78 77 76 75 80 86 87 81 78 77 76 75 80 86 87 81 78 76 75 74 79 Dewpt 72 73 73 73 72 72 73 73 73 73 72 72 74 74 73 74 73 74 73 73 74 RH 82 87 90 94 77 63 63 77 85 87 87 90 82 68 63 79 85 94 94 97 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 16 18 19 19 18 17 14 14 16 14 14 17 19 17 14 16 16 16 14 17 Clouds SC CL FW SC SC CL FW FW SC SC CL CL FW FW FW FW SC SC SC SC B1 PoP 12hr 40 30 10 20 40 QPF 12hr 0.14 0.04 0.02 0.03 0.06 Rain shwrs C S C C S S S S S S S S S S S S C Heat index 83 92 94 86 84 93 94 85 83 Max heat 85 83 94 92 84 95 92 83 Date 12/13 Sun 12/14/25 Mon 12/15/25 Tue 12/16/25 Wed 12/17/25 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 75 87 74 87 74 86 73 86 Temp 87 78 76 80 87 78 75 79 87 78 75 79 86 77 74 78 86 77 Dewpt 74 73 73 74 73 73 73 73 73 73 73 73 73 73 73 73 73 72 PWind dir E E E E E E E E E Wind char BZ BZ BZ GN GN GN GN GN GN Avg clouds SC SC SC SC SC SC SC SC SC B1 B2 B2 B2 B1 B2 B1 B1 SC PoP 12hr 40 20 20 20 50 60 60 50 40 Rain shwrs C S S S S S S S C C C L L C C C C C $$