Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
112 FOCA52 TJSJ 182103 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 PM AST Tue Nov 18 2025 PRZ001-190800- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 PM AST Tue Nov 18 2025 Date 11/18/25 Wed 11/19/25 Thu 11/20/25 Fri 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 88 74 87 74 Temp 79 77 76 75 81 87 88 81 78 76 75 74 80 86 87 81 78 76 75 74 81 Dewpt 74 73 73 73 74 74 74 73 73 73 72 72 72 73 73 72 72 72 71 71 71 RH 85 87 90 94 79 65 63 77 85 90 90 93 77 65 63 74 82 87 87 90 72 Wind dir E E E E E E E E E E E E E E NE NE NE E E E NE Wind spd 9 9 8 9 10 12 12 9 8 8 8 8 9 11 11 9 8 8 6 8 9 Clouds B1 B2 B2 B1 SC B1 SC SC B2 B2 B2 B2 B1 B1 FW FW SC SC B1 B1 SC PoP 12hr 60 50 50 40 40 QPF 12hr 0.32 0.15 0.32 0.12 0.19 Rain shwrs C C L C C C S S C C C C C C C C C C S Tstms S S Heat index 86 95 96 86 84 92 93 85 84 Max heat 87 86 97 94 84 94 91 84 Date 11/21 Sat 11/22/25 Sun 11/23/25 Mon 11/24/25 Tue 11/25/25 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 74 88 75 88 75 88 Temp 88 79 76 81 87 78 75 81 88 79 76 81 88 79 76 81 88 80 Dewpt 71 70 70 70 70 70 70 70 71 70 71 70 71 71 71 71 71 71 PWind dir NE NE NE E E E E E E Wind char GN LT GN LT GN LT GN GN GN Avg clouds SC SC SC SC SC SC B1 B1 SC SC SC SC SC SC SC SC SC FW PoP 12hr 20 20 40 40 30 30 30 20 30 Rain shwrs S S S S S C C C C S S C C C S S S C $$ PRZ002-190800- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 PM AST Tue Nov 18 2025 Date 11/18/25 Wed 11/19/25 Thu 11/20/25 Fri AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 75 86 74 85 73 Temp 78 77 76 75 80 85 86 80 78 76 75 74 79 84 85 79 77 75 74 73 79 Dewpt 74 75 75 74 75 75 75 75 74 74 74 73 74 75 74 74 73 73 72 72 73 RH 88 94 97 97 85 72 70 85 88 94 97 97 85 74 70 85 87 94 93 97 82 Wind dir E NE E E E E E E E NE NE NE NE NE NE NE NE NE NE NE NE Wind spd 10 10 10 11 12 13 11 9 9 9 9 9 10 11 10 10 9 9 9 10 10 Clouds B2 B2 B2 B1 SC B1 B2 B2 B2 B2 B2 B2 SC SC SC SC SC SC SC SC SC PoP 12hr 60 50 50 30 30 QPF 12hr 0.30 0.18 0.30 0.10 0.09 Rain shwrs C C L C C C C C C C C C C C S S C C S S S Tstms S S S S S Heat index 85 94 94 85 83 92 92 83 Max heat 87 85 95 92 83 93 90 83 Date 11/21 Sat 11/22/25 Sun 11/23/25 Mon 11/24/25 Tue 11/25/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 86 75 85 75 86 75 86 75 86 Temp 86 78 76 80 85 78 76 80 86 78 76 80 86 78 76 80 86 79 Dewpt 72 72 71 72 72 71 71 72 72 72 71 73 73 72 72 73 73 73 PWind dir NE NE NE NE E NE NE E E Wind char GN GN GN GN GN GN GN GN GN Avg clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC FW PoP 12hr 20 20 30 30 30 30 30 20 30 Rain shwrs S S S S S C C C C C C C C C S S S C $$ PRZ007-190800- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 PM AST Tue Nov 18 2025 Date 11/18/25 Wed 11/19/25 Thu 11/20/25 Fri 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 73 88 71 87 71 Temp 78 75 74 73 80 87 87 80 76 74 72 71 79 86 87 79 76 74 72 71 79 Dewpt 71 70 70 69 70 69 70 72 70 70 69 69 70 67 69 70 70 68 68 68 69 RH 79 84 87 87 72 55 57 77 82 87 90 93 74 53 55 74 82 82 87 90 72 Wind dir NE NE NE NE NE E E E NE NE NE NE NE E E NE NE NE NE NE NE Wind spd 5 4 4 4 5 13 14 8 5 5 6 6 5 11 12 5 6 6 6 6 5 Wind gust 24 Clouds FW SC FW FW CL FW B1 B2 SC SC FW FW SC SC B2 B2 FW FW FW FW FW PoP 12hr 10 60 20 50 0 QPF 12hr 0.01 0.19 0.04 0.21 0.02 Rain shwrs S C L S S S S C C Tstms S S Heat index 83 91 93 83 89 91 Max heat 85 83 93 90 91 89 Date 11/21 Sat 11/22/25 Sun 11/23/25 Mon 11/24/25 Tue 11/25/25 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 71 87 72 88 72 88 72 89 Temp 87 76 72 79 87 77 73 80 88 77 73 80 88 77 73 80 89 78 Dewpt 67 68 66 66 66 68 66 68 68 69 68 68 69 69 68 69 68 70 PWind dir E NE E NE E NE E NE E Wind char GN LT GN LT GN LT GN LT GN Avg clouds FW SC FW FW FW SC CL FW SC SC FW FW SC SC FW FW FW SC PoP 12hr 30 0 20 5 30 5 30 5 30 Rain shwrs C C S S C C S C C S S C C $$ PRZ008-190800- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 PM AST Tue Nov 18 2025 Date 11/18/25 Wed 11/19/25 Thu 11/20/25 Fri AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 73 85 72 85 72 Temp 77 75 74 73 79 84 85 79 76 74 73 72 78 84 85 79 76 74 73 72 78 Dewpt 74 74 73 71 74 75 76 74 73 73 72 71 73 74 74 73 72 72 71 69 72 RH 90 97 97 93 85 74 75 85 90 97 97 97 85 72 70 82 87 93 93 90 82 Wind dir E E E E E E E E E E E E E E NE NE NE E E E E Wind spd 13 14 13 13 16 18 18 16 16 13 13 14 14 16 17 14 12 13 12 11 12 Clouds B1 SC SC SC SC SC SC SC SC SC B1 B1 SC SC FW FW SC SC SC SC FW PoP 12hr 40 20 40 20 10 QPF 12hr 0.10 0.06 0.13 0.03 0.04 Rain shwrs C C C S S S S S S S C C S S S S S S Heat index 92 93 91 92 Max heat 94 90 93 90 Date 11/21 Sat 11/22/25 Sun 11/23/25 Mon 11/24/25 Tue 11/25/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 85 73 85 72 85 72 85 73 85 Temp 85 77 74 79 85 76 73 78 85 76 73 78 85 77 74 79 85 77 Dewpt 73 71 69 70 72 71 70 71 73 71 70 71 72 72 71 71 73 72 PWind dir NE E NE E E E E E E Wind char GN GN GN GN GN GN GN GN BZ Avg clouds FW SC SC SC SC SC FW SC SC SC SC SC SC SC FW FW FW FW PoP 12hr 10 10 10 10 20 10 10 5 10 Rain shwrs S S S S S S S S S S S S S S S S S S $$ PRZ010-190800- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 PM AST Tue Nov 18 2025 Date 11/18/25 Wed 11/19/25 Thu 11/20/25 Fri 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 71 90 71 90 70 Temp 77 74 72 71 80 88 89 81 77 74 72 71 80 88 89 80 76 73 71 70 79 Dewpt 74 73 72 71 74 77 76 75 74 73 72 71 73 76 76 74 72 72 71 70 72 RH 90 97100100 82 70 66 82 90 97100100 79 68 66 82 87 97100100 79 Wind dir NE E E NE E E SE NE NE NE NE E E NE NE NE NE E NE NE E Wind spd 4 8 6 8 10 9 5 5 10 9 10 11 11 11 13 10 10 10 10 9 10 Clouds SC FW FW FW CL CL B2 B2 B1 FW SC SC SC SC SC SC SC SC SC SC FW PoP 12hr 10 60 40 20 10 QPF 12hr 0.01 0.33 0.07 0.05 0.04 Rain shwrs S L C C S S S S S S S S S S Tstms S S Heat index 84100101 86 84 99101 84 83 Max heat 87 84 102 98 84 102 97 83 Date 11/21 Sat 11/22/25 Sun 11/23/25 Mon 11/24/25 Tue 11/25/25 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 71 90 71 90 70 90 71 90 Temp 89 77 72 80 89 77 72 80 89 76 71 79 89 77 72 80 89 77 Dewpt 74 72 70 71 73 71 70 71 72 71 70 71 73 72 70 72 74 72 PWind dir NE NE NE E NE E NE E E Wind char GN GN GN GN GN GN GN GN LT Avg clouds FW SC FW FW FW SC CL FW SC SC CL FW SC SC FW FW SC SC PoP 12hr 20 5 20 5 30 5 30 5 30 Rain shwrs S S S S C C S C C S S C C $$ VIZ001-190800- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 PM AST Tue Nov 18 2025 Date 11/18/25 Wed 11/19/25 Thu 11/20/25 Fri AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 78 88 77 87 78 Temp 81 80 79 78 83 87 88 83 80 79 78 77 82 86 87 83 81 79 79 78 82 Dewpt 75 76 75 75 76 77 76 76 75 75 74 75 75 75 75 74 74 74 73 73 73 RH 82 88 88 91 80 72 68 80 85 88 88 94 79 70 68 74 79 85 82 85 74 Wind dir E E E E E E E E E NE NE NE NE NE NE NE NE NE NE NE NE Wind spd 17 17 17 18 18 17 14 13 14 16 16 16 16 14 13 13 12 14 14 14 16 Clouds SC SC B2 SC SC SC SC SC SC SC B1 B1 SC SC SC SC SC SC SC SC SC PoP 12hr 50 30 40 20 20 QPF 12hr 0.11 0.08 0.15 0.06 0.06 Rain shwrs S S C S S S C C S C C C S S S S S S S S S Tstms S Heat index 87 86 90 98 98 90 85 88 95 96 89 86 83 88 Max heat 91 87 90 99 96 84 88 97 94 85 88 Date 11/21 Sat 11/22/25 Sun 11/23/25 Mon 11/24/25 Tue 11/25/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 87 79 87 79 88 79 88 79 88 Temp 87 81 80 83 87 81 80 83 88 82 80 83 88 82 80 83 88 82 Dewpt 73 72 73 73 73 73 72 73 74 73 73 73 74 73 73 74 74 73 PWind dir NE NE E E E E E E E Wind char GN GN GN GN GN BZ GN BZ BZ Avg clouds SC SC SC SC SC SC B1 B1 SC SC SC SC SC SC SC SC SC SC PoP 12hr 20 20 40 40 30 30 30 20 30 Rain shwrs S S S S S C C C S C C C C C S S S C $$ VIZ002-190800- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 PM AST Tue Nov 18 2025 Date 11/18/25 Wed 11/19/25 Thu 11/20/25 Fri 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 87 74 87 74 Temp 78 76 75 74 80 86 87 81 78 76 75 74 80 86 87 81 78 76 75 74 80 Dewpt 75 75 75 74 75 75 75 75 74 75 74 74 75 74 74 73 73 73 73 73 73 RH 91 97100100 85 70 68 82 88 97 97100 85 68 65 77 85 90 94 97 79 Wind dir E E E E E E E E NE NE NE NE NE NE E NE NE NE NE NE NE Wind spd 16 16 16 14 14 14 13 12 11 12 13 12 13 14 12 12 11 12 12 12 14 Clouds B1 B2 B2 B2 SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 50 30 20 20 20 QPF 12hr 0.20 0.11 0.09 0.07 0.06 Rain shwrs C C C C C C C C S S S S S S S S S S S S S Tstms S S S Heat index 85 94 96 86 85 94 95 85 84 Max heat 87 85 96 93 85 95 92 84 Date 11/21 Sat 11/22/25 Sun 11/23/25 Mon 11/24/25 Tue 11/25/25 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 86 76 87 76 86 75 86 75 87 Temp 86 79 77 81 87 79 77 81 86 78 76 80 86 78 76 81 87 79 Dewpt 72 72 72 72 72 72 72 73 73 72 72 73 73 73 72 73 73 73 PWind dir NE NE NE E E E E E E Wind char GN GN GN GN GN GN GN GN GN Avg clouds SC SC SC SC FW FW SC SC SC SC SC SC SC SC SC FW FW SC PoP 12hr 20 10 10 20 30 30 30 10 20 Rain shwrs S S S S S S S S S C C C C C S S S S $$