Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
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831 FOCA52 TJSJ 180903 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 AM AST Tue Nov 18 2025 PRZ001-182000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 AM AST Tue Nov 18 2025 Date Tue 11/18/25 Wed 11/19/25 Thu 11/20/25 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 75 88 74 87 Temp 81 87 88 82 79 77 76 75 81 87 88 81 78 76 75 74 80 86 87 81 78 Dewpt 73 73 74 73 74 73 73 73 74 74 74 73 73 73 72 72 72 73 73 72 72 RH 77 63 63 74 85 87 90 94 79 65 63 77 85 90 90 93 77 65 63 74 82 Wind dir E E E E E E E E E E E E E E E E E NE NE NE NE Wind spd 6 9 11 10 8 9 9 9 10 12 12 10 8 8 8 8 9 11 11 9 8 Clouds SC B1 B2 SC B1 B2 B2 B1 SC SC SC SC B2 B2 B2 B2 B1 B1 FW FW SC PoP 12hr 50 60 50 50 40 QPF 12hr 0.28 0.30 0.12 0.30 0.12 Rain shwrs C C C C C C L C C C S S C C C C C C C Tstms S S S Heat index 86 94 97 87 86 95 96 86 84 92 93 85 Max heat 86 97 93 86 97 94 84 94 91 Date Fri 11/21/25 Sat 11/22/25 Sun 11/23/25 Mon 11/24/25 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 88 75 87 74 88 75 88 Temp 75 81 88 79 76 81 87 78 75 81 88 79 76 81 88 79 Dewpt 71 71 71 70 70 70 70 70 70 70 71 70 71 70 71 71 PWind dir NE NE E E E E E E Wind char GN GN LT GN LT GN LT GN Avg clouds B1 B1 SC SC SC SC SC SC B1 B1 SC SC SC SC SC SC PoP 12hr 40 20 20 40 40 30 30 30 Rain shwrs C C S S S S S C C C C S S C C C $$ PRZ002-182000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 AM AST Tue Nov 18 2025 Date Tue 11/18/25 Wed 11/19/25 Thu 11/20/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 75 86 74 85 Temp 81 85 86 81 78 77 76 75 80 85 86 80 78 76 75 74 79 84 85 79 77 Dewpt 75 76 76 75 74 75 75 74 75 75 75 75 74 74 74 73 74 75 74 74 73 RH 82 75 72 82 88 94 97 97 85 72 70 85 88 94 97 97 85 74 70 85 87 Wind dir E E E E E E E E NE E E E NE NE NE NE NE NE NE NE NE Wind spd 9 10 10 9 9 10 11 11 12 13 10 9 9 9 9 10 10 10 9 10 10 Clouds B1 B1 B1 B1 B2 B2 B2 B1 SC SC B1 B1 B2 B2 B2 B2 SC SC SC SC SC PoP 12hr 50 60 50 50 30 QPF 12hr 0.11 0.29 0.15 0.28 0.10 Rain shwrs C C C C C C L C C C C C C C C C C C S S C Tstms S S S Heat index 87 94 96 87 85 94 94 85 83 92 92 Max heat 87 96 92 85 95 92 83 93 90 Date Fri 11/21/25 Sat 11/22/25 Sun 11/23/25 Mon 11/24/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 73 86 75 85 75 86 75 86 Temp 74 79 86 78 76 80 85 78 76 80 86 78 76 80 86 78 Dewpt 72 73 72 72 71 72 72 71 71 72 72 72 71 73 73 72 PWind dir NE NE NE NE NE NE E E Wind char GN GN GN GN GN GN GN GN Avg clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 30 20 20 30 30 30 30 30 Rain shwrs C S S S S S S C C C C C C C C C $$ PRZ007-182000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 AM AST Tue Nov 18 2025 Date Tue 11/18/25 Wed 11/19/25 Thu 11/20/25 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 73 88 71 87 Temp 80 87 88 81 78 75 74 73 80 87 87 80 76 74 72 71 79 86 87 79 76 Dewpt 69 70 72 72 71 70 70 69 70 69 70 72 70 70 69 69 70 67 69 70 70 RH 69 57 59 74 79 84 87 87 72 55 57 77 82 87 90 93 74 53 55 74 82 Wind dir E E SE E NE NE NE NE NE E E E NE NE NE NE NE E E NE NE Wind spd 3 12 12 6 6 5 4 4 4 13 16 9 5 5 5 5 5 12 11 4 6 Wind gust 27 Clouds SC SC SC SC FW SC FW FW FW FW B2 B2 SC SC FW FW SC SC B2 B2 FW PoP 12hr 20 10 50 20 50 QPF 12hr 0.02 0.01 0.18 0.03 0.21 Rain shwrs S S S S S C C S S S S C C Tstms S S Heat index 83 92 95 85 83 91 93 83 89 91 Max heat 83 95 92 83 93 90 91 89 Date Fri 11/21/25 Sat 11/22/25 Sun 11/23/25 Mon 11/24/25 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 88 71 87 72 88 72 88 Temp 72 79 87 76 72 79 87 77 73 80 88 77 73 80 88 77 Dewpt 68 69 67 68 66 66 66 68 66 68 68 69 68 68 69 69 PWind dir NE E NE E NE E NE E Wind char LT GN LT GN LT GN LT GN Avg clouds FW FW FW SC FW FW FW SC CL FW SC SC FW FW SC SC PoP 12hr 0 30 0 20 5 30 5 30 Rain shwrs C C S S C C S C C $$ PRZ008-182000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 AM AST Tue Nov 18 2025 Date Tue 11/18/25 Wed 11/19/25 Thu 11/20/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 85 73 85 72 85 Temp 79 84 85 79 77 75 74 73 79 84 85 79 76 74 73 72 78 84 85 79 76 Dewpt 73 75 76 74 74 74 73 71 74 75 76 74 73 73 72 71 73 74 74 73 72 RH 82 74 75 85 90 97 97 93 85 74 75 85 90 97 97 97 85 72 70 82 87 Wind dir E E E E E E E E E E E E E E E E E NE NE NE E Wind spd 8 10 13 14 16 16 14 14 16 17 17 14 14 13 13 13 14 16 16 14 12 Clouds SC SC SC SC B1 SC SC SC SC SC SC SC SC SC B1 B1 SC SC FW FW SC PoP 12hr 40 40 20 40 20 QPF 12hr 0.08 0.10 0.05 0.11 0.03 Rain shwrs S S C C C C C S S S S S S S C C S S S Heat index 92 94 92 93 91 92 Max heat 94 90 94 90 93 90 Date Fri 11/21/25 Sat 11/22/25 Sun 11/23/25 Mon 11/24/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 72 85 73 85 72 85 72 85 Temp 73 78 85 77 74 79 85 76 73 78 85 76 73 78 85 77 Dewpt 71 72 73 71 69 70 72 71 70 71 73 71 70 71 72 72 PWind dir E NE E NE E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds SC FW FW SC SC SC SC SC FW SC SC SC SC SC SC SC PoP 12hr 10 10 10 10 10 20 10 10 Rain shwrs S S S S S S S S S S S S S S S S $$ PRZ010-182000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 AM AST Tue Nov 18 2025 Date Tue 11/18/25 Wed 11/19/25 Thu 11/20/25 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 71 90 71 90 Temp 80 88 89 81 77 74 72 71 80 88 89 81 77 74 72 71 80 88 89 80 76 Dewpt 73 76 76 75 74 73 72 71 74 77 76 75 74 73 72 71 73 76 76 74 72 RH 79 68 66 82 90 97100100 82 70 66 82 90 97100100 79 68 66 82 87 Wind dir E E E NE NE NE NE NE NE E E NE NE E NE E E NE NE NE NE Wind spd 3 2 3 4 9 10 8 9 11 9 3 3 10 10 10 10 10 11 13 12 10 Clouds FW SC OV OV SC FW FW FW FW FW B2 B2 B1 B1 SC SC SC SC SC SC SC PoP 12hr 80 10 60 40 20 QPF 12hr 1.10 0.01 0.33 0.08 0.05 Rain shwrs S D L S L L C C S S S S S S S Tstms S S S S Heat index 84 99100 87 84100101 86 84 99101 84 Max heat 84 101 98 84 102 98 84 102 97 Date Fri 11/21/25 Sat 11/22/25 Sun 11/23/25 Mon 11/24/25 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 70 90 71 90 71 90 70 90 Temp 71 79 89 77 72 80 89 77 72 80 89 76 71 79 89 77 Dewpt 71 72 74 72 70 71 73 71 70 71 72 71 70 71 73 72 PWind dir NE NE E NE E NE E NE Wind char GN GN GN GN GN GN GN LT Avg clouds SC FW FW SC FW FW FW SC CL FW SC SC CL FW SC SC PoP 12hr 10 20 5 20 5 30 5 30 Rain shwrs S S S S S S C C S C C $$ VIZ001-182000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 AM AST Tue Nov 18 2025 Date Tue 11/18/25 Wed 11/19/25 Thu 11/20/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 78 88 77 87 Temp 83 87 88 83 81 80 79 78 83 87 88 83 80 79 78 77 82 86 87 83 81 Dewpt 76 77 76 76 75 76 75 75 76 77 76 76 75 75 74 75 75 75 75 74 74 RH 80 72 68 80 82 88 88 91 80 72 68 80 85 88 88 94 79 70 68 74 79 Wind dir E E E E E E E E E E E E E NE NE NE NE NE NE NE NE Wind spd 16 14 12 14 16 18 19 19 18 17 13 13 14 16 14 14 16 14 12 13 14 Clouds SC B2 B2 B1 SC SC B2 SC SC SC SC SC SC SC B1 B1 SC SC SC SC SC PoP 12hr 50 50 30 40 20 QPF 12hr 0.12 0.11 0.06 0.11 0.06 Rain shwrs C C C C S S C S S S C C S S C C S S S S S Tstms S S S Heat index 91 99 99 91 87 86 90 98 98 90 85 88 95 96 89 86 Max heat 91 99 98 87 90 99 96 84 88 97 94 Date Fri 11/21/25 Sat 11/22/25 Sun 11/23/25 Mon 11/24/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 78 87 79 87 79 88 79 88 Temp 79 82 87 81 80 83 87 81 80 83 88 82 80 83 88 82 Dewpt 73 73 73 72 73 73 73 73 72 73 74 73 73 73 74 73 PWind dir NE NE NE E E E E E Wind char GN GN GN GN GN GN BZ GN Avg clouds SC SC SC SC SC SC SC SC B1 B1 SC SC SC SC SC SC PoP 12hr 20 20 20 40 40 30 30 30 Rain shwrs S S S S S S S C C C S C C C C C $$ VIZ002-182000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 AM AST Tue Nov 18 2025 Date Tue 11/18/25 Wed 11/19/25 Thu 11/20/25 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 87 74 87 Temp 81 86 87 81 78 76 75 74 80 86 87 81 78 76 75 74 80 86 87 81 78 Dewpt 76 76 75 75 75 75 75 74 75 75 75 75 74 75 74 74 75 74 74 73 73 RH 85 72 68 82 91 97100100 85 70 68 82 88 97 97100 85 68 65 77 85 Wind dir E E E E E E E E E E E E E NE E NE NE E NE NE NE Wind spd 13 13 12 13 14 16 16 16 17 16 13 11 11 12 13 13 13 14 12 13 12 Clouds SC B2 B1 B1 B1 B2 B2 B2 SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 50 50 30 20 20 QPF 12hr 0.14 0.20 0.09 0.06 0.07 Rain shwrs C C C C C C C C C C C C S S S S S S S S S Tstms S S S S Heat index 87 96 96 87 85 94 96 86 85 94 95 85 Max heat 87 96 94 85 96 93 85 95 92 Date Fri 11/21/25 Sat 11/22/25 Sun 11/23/25 Mon 11/24/25 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 86 76 87 76 86 75 86 Temp 75 80 86 79 77 81 87 79 77 81 86 78 76 80 86 78 Dewpt 73 73 72 72 72 72 72 72 72 73 73 72 72 73 73 73 PWind dir NE NE NE E E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds SC SC SC SC SC SC FW FW SC SC SC SC SC SC SC SC PoP 12hr 20 20 10 10 20 30 30 30 Rain shwrs S S S S S S S S S S S C C C C C $$