Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
Versions:
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433 FOCA52 TJSJ 240903 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 AM AST Sun Aug 24 2025 PRZ001-242000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 AM AST Sun Aug 24 2025 Date Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 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 91 79 90 78 89 Temp 86 90 91 87 83 81 80 80 86 89 90 86 82 80 79 79 85 88 89 86 82 Dewpt 77 78 77 77 77 76 75 75 75 76 77 76 76 76 76 75 75 75 75 75 76 RH 75 68 64 72 82 85 85 85 70 66 66 72 82 88 91 88 72 66 64 70 82 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 6 13 14 13 12 11 10 13 11 16 18 16 13 12 11 11 13 16 17 13 9 Clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 SC PoP 12hr 20 10 20 20 40 QPF 12hr 0.06 0.03 0.03 0.02 0.10 Rain shwrs S S S S S S S S S S S S S S S S C C S Obvis H H H H H H H H H H H H H H H H H H Heat index 97105105 99 92 87 85 85 95100103 96 89 86 94 98 99 95 89 Max heat 97 106 103 89 95 103 102 87 94 99 98 High Surf Y Y Y Y Y Y Y Y Date Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 Sat 08/30/25 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 91 78 92 78 92 78 91 Temp 79 86 91 82 79 87 92 83 79 87 92 83 79 86 91 83 Dewpt 74 75 75 75 75 75 76 76 76 76 76 76 75 75 76 76 PWind dir E E SE SE SE E E E Wind char LT GN LT GN LT GN GN GN Avg clouds SC SC SC SC SC SC B1 B2 B2 B1 SC SC SC SC SC SC PoP 12hr 30 30 30 60 50 10 10 10 Rain shwrs S C C C C C L L C C S S S S S S Tstms S S $$ PRZ002-242000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 AM AST Sun Aug 24 2025 Date Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 91 80 89 80 88 Temp 87 90 91 88 84 82 81 81 86 88 89 86 83 82 81 81 85 88 88 86 83 Dewpt 78 78 79 79 77 77 76 76 77 77 77 78 77 77 76 76 76 77 77 77 76 RH 75 68 68 75 80 85 85 85 75 70 68 77 82 85 85 85 75 70 70 75 80 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 9 12 12 14 14 13 13 14 13 17 17 16 16 17 16 13 16 16 14 13 9 Clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 SC PoP 12hr 20 20 20 20 40 QPF 12hr 0.05 0.05 0.03 0.02 0.11 Rain shwrs S S S S S S S S S S S S S S S S C C S Obvis H H H H H H H H H H H H H H H H H H Heat index 100105108103 94 90 87 87 97100102 98 92 90 87 87 94100100 97 91 Max heat 100 108 106 92 97 102 102 90 94 100 100 High Surf Y Y Y Y Y Y Y Y Date Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 Sat 08/30/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 80 90 80 90 80 91 79 90 Temp 80 86 90 83 81 86 90 83 81 87 91 83 80 86 90 83 Dewpt 76 76 77 76 77 77 77 76 76 77 78 76 76 77 77 77 PWind dir E E SE SE SE E E E Wind char GN GN GN GN GN GN GN GN Avg clouds SC SC SC SC B1 B1 B1 SC B2 B1 SC SC B1 B1 SC SC PoP 12hr 30 40 40 50 50 40 40 30 Rain shwrs C C S C C C C C C C S C C C C S $$ PRZ007-242000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 AM AST Sun Aug 24 2025 Date Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 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 92 77 92 77 89 Temp 86 91 92 87 82 80 78 79 86 91 92 87 82 80 78 78 84 88 89 85 80 Dewpt 76 79 79 79 76 75 74 73 75 77 77 77 75 74 73 73 76 77 78 78 76 RH 72 68 66 77 82 85 88 82 70 64 62 72 79 82 85 85 77 70 70 80 88 Wind dir E E SE E E NE NE NE E E E E NE NE NE NE E E E E E Wind spd 3 14 18 12 8 6 4 5 6 16 16 14 9 8 6 6 8 18 14 12 8 Wind gust 29 26 27 25 29 25 Clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 20 10 0 0 10 QPF 12hr 0.03 0.01 0 0 0.01 Rain shwrs S S S S S Obvis H H H H H H H H H H H H H H H H H H Heat index 96108109101 89 85 95105106 99 89 84 93100103 97 87 Max heat 96 109 108 87 95 106 105 87 93 103 102 Date Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 Sat 08/30/25 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 76 89 77 89 77 90 77 90 Temp 77 84 89 81 78 84 89 81 78 85 90 81 78 85 90 81 Dewpt 73 76 78 77 74 76 78 77 75 77 79 77 73 75 79 77 PWind dir NE E E SE E E E E Wind char LT GN LT GN LT GN LT GN Avg clouds SC SC SC SC FW SC FW FW FW SC FW FW FW FW FW SC PoP 12hr 0 10 10 10 10 10 5 10 Rain shwrs S S S S S S S S S S S S S S $$ PRZ008-242000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 AM AST Sun Aug 24 2025 Date Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 77 87 78 86 Temp 83 87 88 85 81 79 78 78 83 86 87 84 81 80 79 79 83 86 86 83 79 Dewpt 76 78 78 76 77 76 76 74 75 76 77 75 76 76 76 74 76 76 76 75 76 RH 80 75 72 75 88 91 94 88 77 72 72 74 85 88 91 85 80 72 72 77 91 Wind dir E NE NE E E E E E E E E E E E E E E E E E E Wind spd 8 12 18 17 21 14 14 11 16 18 24 25 20 19 16 14 18 20 23 20 10 Clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 PoP 12hr 10 0 10 0 40 QPF 12hr 0.02 0 0.02 0 0.22 Rain shwrs S S S C C C Obvis H H H H H H H H H H H H H H H H H H Heat index 91100102 94 88 90 96 99 92 87 86 91 96 96 90 86 Max heat 91 102 100 87 90 99 99 86 91 96 96 High Surf Y Y Y Y Y Y Y Y Date Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 Sat 08/30/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 76 88 76 87 77 89 76 88 Temp 77 83 88 80 77 83 87 80 78 84 89 80 77 83 88 81 Dewpt 75 75 75 75 75 75 76 76 76 75 76 76 75 75 76 77 PWind dir E E E E SE NE E E Wind char LT GN LT LT LT GN GN GN Avg clouds SC SC SC SC SC SC B1 B1 FW FW SC SC SC FW FW B1 PoP 12hr 40 40 20 70 5 40 10 40 Rain shwrs C C C S S L L S S C C S S C C Tstms S S S S S S S S $$ PRZ010-242000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 AM AST Sun Aug 24 2025 Date Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 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 94 74 93 75 92 Temp 87 93 94 88 81 78 75 76 86 92 93 87 81 78 76 77 86 91 92 86 80 Dewpt 76 79 79 78 77 76 75 74 76 77 78 78 76 75 75 74 76 77 78 77 77 RH 70 64 62 72 88 94100 94 72 62 62 75 85 91 97 90 72 64 64 75 91 Wind dir NE E S E E NE NE NE NE E E NE E E E E E E E E E Wind spd 4 3 2 3 10 5 5 5 8 4 4 12 14 10 6 8 8 3 3 3 3 Clouds SC SC OV B2 SC SC SC SC SC SC B1 SC SC SC SC SC SC SC B2 B2 SC PoP 12hr 70 30 40 0 60 QPF 12hr 1.01 0.05 0.28 0 0.54 Rain shwrs S L L C C S L L C Tstms S S S S Obvis H H H H H H H H H H H H H H Heat index 98110112102 88 96106109100 87 96105107 97 87 Max heat 98 114 110 96 109 107 86 96 107 106 High Surf Y Y Y Y Y Y Y Y Date Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 Sat 08/30/25 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 93 75 92 75 93 74 92 Temp 75 86 93 81 76 86 92 81 76 86 93 80 75 85 92 81 Dewpt 75 75 78 76 75 76 78 77 76 76 78 77 75 76 79 77 PWind dir E E E SE E E E E Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC SC FW FW FW SC FW FW FW SC FW FW SC B2 PoP 12hr 30 40 5 30 5 40 5 60 Rain shwrs C C C C C C C S S L L Tstms S S S S S S $$ VIZ001-242000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 AM AST Sun Aug 24 2025 Date Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 92 81 90 81 89 Temp 88 91 92 89 85 83 82 82 87 89 90 87 84 83 82 82 86 89 89 87 84 Dewpt 78 78 78 77 77 77 77 77 77 77 77 77 77 77 77 76 76 77 76 77 77 RH 72 66 64 68 77 82 85 85 72 68 66 72 80 82 85 82 72 68 66 72 80 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 13 16 16 21 21 20 21 21 20 21 21 23 23 23 21 20 20 19 18 16 14 Clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 20 0 10 10 20 QPF 12hr 0.03 0 0.02 0.02 0.04 Rain shwrs S S S S S S S S S S S S S Obvis H H H H H H H H H H H H H H H H H H Heat index 102106107102 96 92 90 90 99102103 99 94 92 90 89 96102100 99 94 Max heat 102 107 108 95 99 103 103 92 96 102 100 Heat Y Y High Surf Y Y Y Y Y Y Y Y Date Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 Sat 08/30/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 81 91 81 92 82 92 81 92 Temp 81 87 91 84 82 88 92 85 83 88 92 85 82 88 92 85 Dewpt 77 76 76 76 77 76 77 77 77 76 76 76 76 77 77 77 PWind dir E E SE SE SE E E E Wind char GN GN GN GN GN GN BZ GN Avg clouds SC B1 SC SC SC SC SC SC SC SC SC FW SC SC SC SC PoP 12hr 40 20 30 30 20 20 30 30 Rain shwrs C C S S S C C S S S S S S C C S $$ VIZ002-242000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 AM AST Sun Aug 24 2025 Date Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 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 91 78 89 78 88 Temp 86 90 91 87 82 80 79 79 85 88 89 86 82 80 79 79 84 87 88 85 81 Dewpt 78 78 78 77 77 76 76 76 77 77 77 77 77 76 76 76 77 77 77 76 76 RH 77 68 66 72 85 88 91 91 77 70 68 75 85 88 91 91 80 72 70 75 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 13 16 19 18 17 19 20 20 19 20 20 21 20 20 19 19 19 19 17 14 12 Clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 10 0 20 20 10 QPF 12hr 0.02 0 0.05 0.03 0.03 Rain shwrs S S S S S S S S S S S S Obvis H H H H H H H H H H H H H H H H H H Heat index 98105106 99 90 86 96100102 97 90 86 94 99100 94 89 Max heat 98 106 103 89 96 102 100 88 94 100 100 Heat Y Y Date Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 Sat 08/30/25 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 90 78 90 79 91 79 90 Temp 79 85 90 82 79 85 90 83 80 86 91 83 80 86 90 83 Dewpt 75 76 76 76 76 76 77 76 76 76 76 76 76 77 77 76 PWind dir E E SE SE E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds SC SC SC SC SC SC SC SC SC FW FW SC SC SC SC SC PoP 12hr 20 20 20 20 5 20 20 30 Rain shwrs S S S S S S S S S S S S S S C C $$