Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
813 FOCA52 TJSJ 140903 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 AM AST Mon Jul 14 2025 PRZ001-142000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 AM AST Mon Jul 14 2025 Date Mon 07/14/25 Tue 07/15/25 Wed 07/16/25 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 77 91 78 90 Temp 85 89 90 87 81 79 78 79 85 90 91 88 82 80 79 80 85 89 90 87 82 Dewpt 73 74 73 74 72 73 73 73 74 75 75 76 75 75 75 74 75 76 76 76 76 RH 67 61 58 65 74 82 85 82 70 62 60 68 79 85 88 82 72 66 64 70 82 Wind dir E E E E E E E SE E E E E E E E E E E E E E Wind spd 10 13 16 13 10 11 10 9 10 13 14 13 11 11 11 9 11 14 14 12 10 Clouds SC SC B2 B2 CL FW FW SC SC SC B1 B1 SC SC SC SC B2 B2 B2 B2 SC PoP 12hr 50 20 40 60 60 QPF 12hr 0.52 0.05 0.33 0.11 0.74 Rain shwrs C C C C S S S S C C S S S S L L L L S Tstms S S S S Heat index 91 98 98 95 86 83 93100102 99 89 85 84 94100102 98 89 Max heat 91 99 99 85 93 102 101 88 94 102 101 Date Thu 07/17/25 Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 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 91 77 91 77 91 Temp 78 86 91 82 79 86 91 82 78 85 91 82 78 85 91 82 Dewpt 75 76 77 76 76 76 75 75 75 74 75 74 75 75 75 75 PWind dir E E E E E E SE E Wind char GN GN GN GN GN GN LT GN Avg clouds SC SC SC FW CL FW SC FW CL FW SC FW CL FW SC SC PoP 12hr 30 30 20 20 10 30 20 20 Rain shwrs S C C S S S S S S S S S S $$ PRZ002-142000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 AM AST Mon Jul 14 2025 Date Mon 07/14/25 Tue 07/15/25 Wed 07/16/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 78 89 79 88 Temp 84 87 88 86 81 80 78 79 85 88 89 87 82 81 79 80 84 87 88 86 83 Dewpt 73 74 73 74 73 73 73 73 74 75 75 76 76 75 75 75 75 76 76 76 76 RH 70 65 61 68 77 79 85 82 70 66 64 70 82 82 88 85 74 70 68 72 80 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 13 13 12 12 11 12 11 11 11 11 11 12 12 13 14 12 13 14 13 12 11 Clouds B2 B1 B2 B2 CL SC SC SC SC B2 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 SC PoP 12hr 50 20 50 60 60 QPF 12hr 0.55 0.12 0.20 0.17 0.75 Rain shwrs C C C C S S S S C C C C C C C L L L L C Tstms S S S S S S Heat index 90 96 96 93 86 84 83 92 98 99 97 90 86 84 85 93 98 99 96 91 Max heat 90 97 96 85 92 100 99 89 93 99 99 Date Thu 07/17/25 Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 80 89 80 89 78 89 79 89 Temp 80 85 89 83 80 85 89 82 78 85 89 82 79 85 89 82 Dewpt 76 76 77 76 75 75 75 75 74 74 75 74 75 75 75 75 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN GN GN Avg clouds SC SC SC FW CL FW SC SC SC SC SC SC SC SC SC SC PoP 12hr 40 40 20 20 30 30 20 20 Rain shwrs C C C S S S S S C C S S S S S $$ PRZ007-142000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 AM AST Mon Jul 14 2025 Date Mon 07/14/25 Tue 07/15/25 Wed 07/16/25 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 89 75 91 77 92 Temp 83 88 89 86 80 77 76 77 85 90 91 88 82 79 78 79 86 91 92 88 82 Dewpt 72 74 75 75 73 71 71 70 72 75 75 76 74 72 72 72 74 75 77 77 75 RH 70 63 64 70 79 82 85 79 65 62 60 68 77 79 82 79 68 60 62 70 79 Wind dir E SE SE SE E E NE NE E SE SE E E E E E E E E E E Wind spd 4 12 11 11 9 6 6 5 5 14 14 13 10 6 5 4 6 16 19 16 10 Wind gust 26 25 24 26 32 26 Clouds SC CL SC SC FW FW SC FW CL CL SC CL FW FW FW FW FW FW B1 B1 SC PoP 12hr 10 10 5 5 40 QPF 12hr 0.12 0.04 0.01 0.02 0.22 Rain shwrs S S S S S S S S S C C S Tstms S S Heat index 89 97 99 94 84 90100102 98 88 83 94102106101 89 Max heat 89 99 100 90 102 101 86 94 106 105 Date Thu 07/17/25 Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 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 77 91 77 92 75 90 76 90 Temp 78 85 91 82 78 86 92 81 76 84 90 81 77 84 90 81 Dewpt 73 75 77 74 73 74 77 75 72 74 77 74 72 74 76 74 PWind dir E E E E E E E E Wind char LT GN LT GN LT GN LT GN Avg clouds SC FW FW SC CL CL FW SC CL FW FW FW CL CL FW FW PoP 12hr 10 20 0 40 0 20 0 0 Rain shwrs S S S S C C S S $$ PRZ008-142000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 AM AST Mon Jul 14 2025 Date Mon 07/14/25 Tue 07/15/25 Wed 07/16/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 75 87 77 87 Temp 82 86 87 84 79 77 75 77 82 86 87 85 80 79 77 78 83 86 87 84 80 Dewpt 72 73 74 74 74 74 73 73 73 73 75 75 75 76 75 76 75 75 76 75 76 RH 72 65 65 72 85 90 94 87 74 65 68 72 85 91 94 94 77 70 70 74 88 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 11 5 4 10 5 8 12 10 10 13 17 19 20 11 13 11 14 20 20 20 18 Clouds FW CL OV B2 SC SC CL CL CL CL B2 OV SC SC SC SC CL CL B1 B1 B1 PoP 12hr 70 30 70 30 40 QPF 12hr 0.91 0.16 0.95 0.08 0.33 Rain shwrs L L C S C L S S C C C C C Tstms S S S S S S S Heat index 87 93 95 91 83 88 93 96 93 86 90 95 98 92 85 Max heat 87 95 95 88 96 96 84 90 98 97 Date Thu 07/17/25 Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 76 88 77 87 76 87 75 88 Temp 76 83 88 81 77 83 87 80 76 83 87 79 75 83 88 79 Dewpt 75 75 77 77 76 75 75 75 76 74 75 74 75 74 76 75 PWind dir E E E E E E E E Wind char GN BZ GN GN GN GN GN GN Avg clouds B1 SC FW SC CL CL FW FW CL CL FW SC SC FW FW B1 PoP 12hr 40 30 0 10 0 40 10 50 Rain shwrs C C C C S S S S S S C C Tstms S $$ PRZ010-142000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 AM AST Mon Jul 14 2025 Date Mon 07/14/25 Tue 07/15/25 Wed 07/16/25 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 73 92 74 92 Temp 83 89 90 86 79 76 74 75 84 90 92 88 80 77 75 76 85 91 92 88 80 Dewpt 74 76 77 76 75 74 72 71 73 75 77 77 76 75 74 73 75 78 79 79 77 RH 74 66 66 72 88 94 93 87 70 62 62 70 88 94 97 90 72 66 66 75 91 Wind dir E SE NW N E E E E E E SE E E E E E E E E E E Wind spd 4 3 2 8 3 8 5 4 5 3 3 2 3 3 4 5 5 4 4 3 3 Clouds CL CL OV OV SC CL CL CL CL CL B2 B2 SC SC SC SC CL CL OV OV OV PoP 12hr 70 30 60 20 70 QPF 12hr 1.06 0.11 0.93 0.06 1.15 Rain shwrs L L C L L S S S S L L L Tstms S S S S S S S Heat index 89100103 96 91101106 99 86 93105109102 87 Max heat 89 103 102 91 106 105 83 93 109 108 Date Thu 07/17/25 Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 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 73 91 74 92 Temp 75 85 93 81 76 85 92 79 74 84 91 80 75 85 92 80 Dewpt 74 76 80 77 75 76 79 77 74 75 78 76 74 75 78 77 PWind dir E E E NE E E E E Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B1 SC B1 CL CL FW SC FW FW SC B1 FW FW SC B1 PoP 12hr 70 70 0 60 0 80 5 60 Rain shwrs L L L L L L L L L L Tstms S S S S S S S S S S $$ VIZ001-142000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 AM AST Mon Jul 14 2025 Date Mon 07/14/25 Tue 07/15/25 Wed 07/16/25 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 90 80 90 80 91 Temp 86 89 90 88 83 82 80 81 86 89 90 88 83 82 80 81 87 90 91 89 84 Dewpt 75 74 74 74 74 74 75 75 76 76 77 76 76 77 77 76 77 77 77 76 77 RH 70 61 60 63 74 77 85 82 72 66 66 68 80 85 91 85 72 66 64 66 80 Wind dir E E E E E E E E E E E E E E E E E E E E E Wind spd 17 17 16 16 17 17 16 17 14 17 17 18 19 20 20 20 19 18 18 18 18 Clouds B2 B1 B1 SC CL FW CL CL SC B2 B1 B1 B1 B1 SC SC B2 B2 B2 B2 SC PoP 12hr 50 10 50 60 60 QPF 12hr 0.36 0.04 0.18 0.16 0.46 Rain shwrs C C C C S C C C C C C C L L C C C Tstms S S S S S S Heat index 95 98 99 96 90 88 86 87 96101103 98 92 90 87 88 98103105100 95 Max heat 95 99 99 89 96 103 103 91 98 105 104 Date Thu 07/17/25 Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 81 91 81 91 80 90 81 91 Temp 81 87 91 84 81 87 91 84 80 86 90 84 81 87 91 84 Dewpt 77 77 77 77 77 76 76 76 75 75 75 76 75 76 76 76 PWind dir E E E E E E E E Wind char BZ BZ BZ GN GN GN BZ BZ Avg clouds SC SC B1 SC SC SC SC SC SC SC SC FW SC SC SC SC PoP 12hr 40 40 10 10 40 40 20 20 Rain shwrs C C C S S S S S S C C S S S S S $$ VIZ002-142000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 AM AST Mon Jul 14 2025 Date Mon 07/14/25 Tue 07/15/25 Wed 07/16/25 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 89 78 89 Temp 83 87 88 85 81 79 77 79 84 88 89 86 82 80 78 79 85 88 89 86 82 Dewpt 74 74 74 73 73 74 73 74 75 75 76 76 75 76 76 76 76 76 76 76 76 RH 74 65 63 67 77 85 87 85 74 66 66 72 79 88 94 91 75 68 66 72 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 16 16 16 14 14 14 14 14 13 13 13 16 16 18 18 17 17 17 17 16 14 Clouds SC B2 B1 SC SC SC SC CL SC SC B1 B1 B2 B2 B1 B1 B1 B1 B2 B2 SC PoP 12hr 50 30 50 50 60 QPF 12hr 0.40 0.18 0.17 0.16 0.59 Rain shwrs S C C S S C S S C C C C C C C C C L L C Tstms S S S S S S Heat index 90 95 97 92 85 92 98100 96 88 85 84 94 99100 96 89 Max heat 90 98 96 84 92 100 100 87 94 100 100 Date Thu 07/17/25 Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 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 89 77 89 78 89 Temp 78 85 90 82 78 85 89 81 77 84 89 82 78 85 89 82 Dewpt 76 77 77 76 75 76 75 75 75 75 75 74 75 75 76 74 PWind dir E E E E E E E E Wind char BZ BZ GN GN GN GN GN BZ Avg clouds SC FW SC SC CL CL FW FW CL FW SC SC SC FW FW SC PoP 12hr 30 30 0 10 20 20 5 10 Rain shwrs C C C S S S S S S S S S S $$