Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
886 FOCA52 TJSJ 242103 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 PM AST Sun Aug 24 2025 PRZ001-250800- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 PM AST Sun Aug 24 2025 Date 08/24/25 Mon 08/25/25 Tue 08/26/25 Wed 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 79 90 78 89 78 Temp 83 81 80 80 86 89 90 86 82 80 79 79 85 88 89 86 82 80 79 79 86 Dewpt 77 76 75 75 75 76 77 76 76 76 76 75 75 75 75 75 76 75 74 74 75 RH 82 85 85 85 70 66 66 72 82 88 91 88 72 66 64 70 82 85 85 85 70 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 12 11 10 12 11 16 18 16 13 11 10 10 13 16 16 13 10 8 8 6 8 Clouds SC SC SC SC SC SC SC SC CL FW SC B1 SC SC B1 B1 SC SC SC SC SC PoP 12hr 10 20 40 40 30 QPF 12hr 0.03 0.03 0.10 0.10 0.07 Rain shwrs S S S S S S S S S C S S C C S S S S C Obvis H H H H H H H H H H H H H Heat index 92 87 85 85 95100103 96 89 86 94 98 99 95 89 85 95 Max heat 99 89 95 103 102 87 94 99 98 87 95 High Surf Y Y Y Y Y Y Y Y Date 08/27 Thu 08/28/25 Fri 08/29/25 Sat 08/30/25 Sun 08/31/25 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 91 78 92 78 92 78 91 79 92 Temp 91 82 79 87 92 83 79 87 92 83 79 86 91 83 80 87 92 83 Dewpt 75 75 75 75 76 76 76 76 76 76 75 75 76 76 75 76 76 76 PWind dir E SE SE SE E E E E E Wind char GN LT GN LT GN LT GN LT GN Avg clouds SC SC SC SC B1 B2 B2 B1 SC SC SC SC SC SC SC SC SC SC PoP 12hr 30 30 60 50 10 10 10 10 20 Rain shwrs C C C C L L C C S S S S S S S S S S Tstms S S $$ PRZ002-250800- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 PM AST Sun Aug 24 2025 Date 08/24/25 Mon 08/25/25 Tue 08/26/25 Wed AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 80 89 80 88 80 Temp 84 82 81 81 86 88 89 86 83 82 81 81 85 88 88 86 83 82 80 81 86 Dewpt 77 77 76 76 77 77 77 78 77 77 76 76 76 77 77 77 76 76 76 75 76 RH 80 85 85 85 75 70 68 77 82 85 85 85 75 70 70 75 80 82 88 82 72 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 16 13 14 14 12 14 17 17 16 14 14 13 14 14 14 13 10 11 6 9 10 Clouds SC SC SC SC SC SC SC SC CL SC B1 B2 SC SC B1 B1 SC SC SC SC SC PoP 12hr 20 20 60 40 30 QPF 12hr 0.05 0.05 0.32 0.11 0.08 Rain shwrs S S S S S S S S S C L S S C C S S C C S Obvis H H H H H H H H H H H H Heat index 94 90 87 87 97100102 98 92 90 87 87 94100100 97 91 89 87 87 96 Max heat 103 92 97 102 102 90 94 100 100 89 96 High Surf Y Y Y Y Y Y Y Y Date 08/27 Thu 08/28/25 Fri 08/29/25 Sat 08/30/25 Sun 08/31/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 80 90 80 91 79 90 80 90 Temp 90 83 81 86 90 83 81 87 91 83 80 86 90 83 81 86 90 83 Dewpt 77 76 77 77 77 76 76 77 78 76 76 77 77 77 77 77 77 77 PWind dir E SE SE E E E E E E Wind char GN GN GN GN GN GN GN GN GN Avg clouds SC SC B1 B1 B1 SC B2 B1 SC SC B1 B1 SC SC SC SC SC SC PoP 12hr 40 40 50 50 40 40 30 30 30 Rain shwrs S C C C C C C C S C C C C S S C C C $$ PRZ007-250800- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 PM AST Sun Aug 24 2025 Date 08/24/25 Mon 08/25/25 Tue 08/26/25 Wed 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 77 92 77 89 76 Temp 82 80 78 79 86 91 92 87 82 80 78 78 84 88 89 85 80 78 77 77 84 Dewpt 76 75 74 73 75 77 77 77 75 74 73 73 76 77 78 78 76 75 73 73 76 RH 82 85 88 82 70 64 62 72 79 82 85 85 77 70 70 80 88 91 87 87 77 Wind dir NE NE NE NE E E E E NE NE NE NE E E E E E NE NE E E Wind spd 6 5 5 6 6 16 17 16 9 8 5 6 8 12 17 14 9 5 4 4 4 Wind gust 27 27 26 28 25 Clouds SC SC SC SC SC SC SC SC CL FW FW FW SC SC SC SC SC SC SC SC SC PoP 12hr 10 0 5 10 0 QPF 12hr 0.01 0 0.02 0.01 0 Rain shwrs S S S Obvis H H H H H H H H H H H H H H Heat index 89 85 95105106 99 89 84 93100103 97 87 93 Max heat 101 87 95 106 105 87 93 103 102 86 93 Date 08/27 Thu 08/28/25 Fri 08/29/25 Sat 08/30/25 Sun 08/31/25 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 89 77 89 77 90 77 90 77 89 Temp 89 81 78 84 89 81 78 85 90 81 78 85 90 81 78 84 89 81 Dewpt 78 77 74 76 78 77 75 77 79 77 73 75 79 77 74 76 79 77 PWind dir E E E E E NE E E E Wind char GN LT GN LT GN LT GN LT GN Avg clouds SC SC FW SC FW FW FW SC FW FW FW FW FW SC FW FW SC SC PoP 12hr 10 10 10 10 10 5 10 5 20 Rain shwrs S S S S S S S S S S S S S S S S S $$ PRZ008-250800- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 PM AST Sun Aug 24 2025 Date 08/24/25 Mon 08/25/25 Tue 08/26/25 Wed AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 77 87 78 86 76 Temp 81 79 78 78 83 86 87 84 81 80 79 79 83 86 86 83 79 78 77 77 83 Dewpt 77 76 76 74 75 76 77 75 76 76 76 74 76 76 76 75 76 75 75 74 75 RH 88 91 94 88 77 72 72 74 85 88 91 85 80 72 72 77 91 91 94 90 77 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 20 16 13 13 14 17 24 24 20 18 13 14 17 19 20 18 12 10 10 8 10 Wind gust 27 36 37 32 28 Clouds SC SC SC SC SC SC SC SC CL CL CL CL SC SC B1 B1 B1 B1 SC SC SC PoP 12hr 0 10 0 40 40 QPF 12hr 0 0.02 0 0.22 0.05 Rain shwrs S C C C C Obvis H H H H H H H H H H H H H H Heat index 88 90 96 99 92 87 86 91 96 96 90 86 90 Max heat 94 87 90 99 99 86 91 96 96 90 High Surf Y Y Y Y Y Y Y Y Date 08/27 Thu 08/28/25 Fri 08/29/25 Sat 08/30/25 Sun 08/31/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 76 87 77 89 76 88 77 88 Temp 88 80 77 83 87 80 78 84 89 80 77 83 88 81 78 84 88 80 Dewpt 75 75 75 75 76 76 76 75 76 76 75 75 76 77 76 76 77 77 PWind dir E E E E NE E E E E Wind char GN LT LT LT GN LT GN GN GN Avg clouds SC SC SC SC B1 B1 FW FW SC SC SC FW FW B1 SC SC SC SC PoP 12hr 40 20 70 5 40 10 40 30 30 Rain shwrs C C S S L L S S C C S S C C C C C C Tstms S S S S S S S S $$ PRZ010-250800- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 PM AST Sun Aug 24 2025 Date 08/24/25 Mon 08/25/25 Tue 08/26/25 Wed 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 93 75 92 74 Temp 81 78 75 76 86 92 93 87 81 78 76 77 86 91 92 86 80 77 75 76 86 Dewpt 77 76 75 74 76 77 78 78 76 75 75 74 76 77 78 77 77 76 75 74 75 RH 88 94100 94 72 62 62 75 85 91 97 90 72 64 64 75 91 97100 94 70 Wind dir E NE NE NE NE NE E NE NE E E E E E E E E E E E E Wind spd 11 8 4 5 5 4 4 12 13 10 5 8 9 6 3 2 4 3 6 5 4 Clouds SC SC SC SC SC SC B1 SC CL CL CL CL SC SC B2 B2 SC SC SC SC SC PoP 12hr 30 40 0 60 30 QPF 12hr 0.05 0.28 0 0.54 0.03 Rain shwrs C C S L L C C Tstms S S Obvis H H H H H H H H H H H H Heat index 88 96106109100 87 96105107 97 87 95 Max heat 102 96 109 107 86 96 107 106 95 High Surf Y Y Y Y Y Y Y Y Date 08/27 Thu 08/28/25 Fri 08/29/25 Sat 08/30/25 Sun 08/31/25 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 93 75 92 75 93 74 92 75 92 Temp 93 81 76 86 92 81 76 86 93 80 75 85 92 81 76 86 92 80 Dewpt 78 76 75 76 78 77 76 76 78 77 75 76 79 77 76 76 79 77 PWind dir E E SE E NE E E E E Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC SC FW FW FW SC FW FW FW SC FW FW SC B2 SC SC SC B1 PoP 12hr 40 5 30 5 40 5 60 30 60 Rain shwrs C C C C C C S S L L C C L L Tstms S S S S S S S S $$ VIZ001-250800- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 PM AST Sun Aug 24 2025 Date 08/24/25 Mon 08/25/25 Tue 08/26/25 Wed AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 81 90 81 89 81 Temp 85 83 82 82 87 89 90 87 84 83 82 82 86 89 89 87 84 83 81 82 87 Dewpt 77 77 77 77 77 77 77 77 77 77 77 76 76 77 76 77 77 77 77 76 76 RH 77 82 85 85 72 68 66 72 80 82 85 82 72 68 66 72 80 82 88 82 70 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 23 21 20 20 19 20 21 23 21 21 19 18 19 18 17 17 14 13 16 13 13 Clouds SC SC SC SC SC SC SC SC CL SC SC B2 SC SC SC SC SC SC B1 B1 SC PoP 12hr 0 10 50 20 40 QPF 12hr 0 0.03 0.15 0.04 0.12 Rain shwrs S S S C C S S S S S S C C S Obvis H H H H H H H H H H H H Heat index 96 92 90 90 99102103 99 94 92 90 89 96102100 99 94 92 90 89 98 Max heat 102 95 99 103 103 92 96 102 100 92 98 High Surf Y Y Y Y Y Y Y Y Date 08/27 Thu 08/28/25 Fri 08/29/25 Sat 08/30/25 Sun 08/31/25 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 91 81 92 82 92 81 92 81 92 Temp 91 84 82 88 92 85 83 88 92 85 82 88 92 85 82 88 92 84 Dewpt 76 76 77 76 77 77 77 76 76 76 76 77 77 77 77 77 77 77 PWind dir E SE SE E E E E E E Wind char GN GN GN GN GN GN GN GN GN Avg clouds SC SC SC SC SC SC SC SC SC FW SC SC SC SC SC SC SC SC PoP 12hr 20 30 30 20 20 30 30 10 20 Rain shwrs S S S C C S S S S S S C C S S S S S $$ VIZ002-250800- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 PM AST Sun Aug 24 2025 Date 08/24/25 Mon 08/25/25 Tue 08/26/25 Wed 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 89 78 88 78 Temp 82 80 79 79 85 88 89 86 82 80 79 79 84 87 88 85 81 80 79 79 85 Dewpt 77 76 76 76 77 77 77 77 77 76 76 76 77 77 77 76 76 75 75 75 76 RH 85 88 91 91 77 70 68 75 85 88 91 91 80 72 70 75 85 85 88 88 75 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 19 20 19 19 18 19 23 21 20 19 19 17 18 17 16 14 13 13 11 11 11 Clouds SC SC SC SC SC SC SC SC SC B1 SC B1 SC SC SC SC SC SC SC SC SC PoP 12hr 0 20 50 10 20 QPF 12hr 0 0.09 0.20 0.03 0.03 Rain shwrs S S S S C S C S S S S S S S Tstms S Obvis H H H H H H H H H H H H Heat index 90 86 96100102 97 90 86 94 99100 94 89 85 94 Max heat 99 89 96 102 100 88 94 100 100 87 94 Date 08/27 Thu 08/28/25 Fri 08/29/25 Sat 08/30/25 Sun 08/31/25 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 78 90 79 91 79 90 79 90 Temp 90 82 79 85 90 83 80 86 91 83 80 86 90 83 80 86 90 82 Dewpt 76 76 76 76 77 76 76 76 76 76 76 77 77 76 76 77 77 77 PWind dir E E SE E E E E E E Wind char GN GN GN GN GN GN GN GN GN Avg clouds SC SC SC SC SC SC SC FW FW SC SC SC SC SC SC SC SC SC PoP 12hr 20 20 20 5 20 20 30 20 20 Rain shwrs S S S S S S S S S S S S C C S S S S $$