FOCA52 TJSJ 190632 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 232 AM AST Tue May 19 2026 PRZ001-192000- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 232 AM AST Tue May 19 2026 Date Tue 05/19/26 Wed 05/20/26 Thu 05/21/26 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 75 90 75 90 Temp 77 84 88 90 86 80 77 75 77 84 88 90 86 80 77 75 77 84 88 90 86 81 Dewpt 70 70 71 71 71 71 71 71 71 71 72 71 70 71 71 70 70 71 71 71 71 72 RH 79 63 57 54 61 74 82 87 82 65 59 54 59 74 82 84 79 65 57 54 61 74 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 10 13 17 16 14 12 11 9 10 13 16 17 16 12 11 9 11 11 16 16 13 11 Clouds B1 B1 SC B1 B1 B1 B1 SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC B1 PoP 12hr 40 40 50 50 40 QPF 12hr 0.25 0.12 0.26 0.14 0.08 Rain shwrs C C S C C C C S S C C C C C C C C C C S S C Heat index 88 94 96 91 84 89 95 96 91 84 89 94 96 92 85 Max heat 88 96 96 82 89 96 96 82 89 96 96 Date Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 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 90 76 90 76 89 76 90 Temp 76 84 90 81 76 84 90 81 76 84 89 80 76 84 90 81 Dewpt 71 71 71 72 72 72 72 71 71 71 71 72 71 71 72 72 PWind dir E E E E E E E E Wind char GN GN GN GN GN GN GN BZ Avg clouds B1 B1 B2 B1 SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B2 PoP 12hr 50 50 20 50 40 50 40 50 Rain shwrs C C C C S S C C C C C C C C C C $$ PRZ002-192000- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 232 AM AST Tue May 19 2026 Date Tue 05/19/26 Wed 05/20/26 Thu 05/21/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 77 86 76 87 Temp 78 83 86 87 84 80 79 77 78 82 85 86 83 79 78 76 77 82 86 87 84 80 Dewpt 71 72 73 73 73 73 73 72 72 73 73 73 73 72 72 72 72 73 73 73 73 73 RH 79 70 65 63 70 79 82 85 82 74 67 65 72 79 82 87 85 74 65 63 70 79 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 14 16 17 16 14 14 14 13 14 16 17 16 16 13 13 16 14 13 14 13 13 12 Clouds B2 B1 SC B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B1 B1 B1 B1 B1 B1 SC SC B2 PoP 12hr 40 50 50 50 50 QPF 12hr 0.28 0.16 0.28 0.17 0.16 Rain shwrs L C S C C C C C C C C C C C C C C C C C C C Heat index 88 93 94 91 85 88 92 93 89 83 88 93 94 91 85 Max heat 88 94 94 84 88 93 93 88 94 94 Date Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 77 87 77 87 77 87 77 87 Temp 77 83 87 80 77 83 87 80 77 83 87 80 77 83 87 80 Dewpt72 73 74 73 73 73 74 73 72 73 73 73 73 73 74 74 PWind dir E E E E E E E E Wind char GN GN GN GN GN BZ GN BZ Avg clouds B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B1 B1 B2 PoP 12hr 50 50 40 50 40 50 50 50 Rain shwrs C C C C C C C C C C C C C C C C $$ PRZ007-192000- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 232 AM AST Tue May 19 2026 Date Tue 05/19/26 Wed 05/20/26 Thu 05/21/26 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 88 74 88 Temp 76 83 87 89 85 80 77 75 77 83 87 88 84 79 76 74 76 82 86 88 84 79 Dewpt 67 68 68 69 68 68 69 69 68 69 69 69 70 69 68 66 65 67 67 67 68 69 RH 74 61 53 52 57 67 76 82 74 63 55 54 63 72 76 76 69 61 53 50 59 72 Wind dir NE E E E E E E E NE E E SE E E E NE E E E SE E E Wind spd 6 11 14 14 14 10 6 5 5 10 17 17 16 9 8 5 6 10 13 14 12 9 Wind gust 25 25 28 28 26 24 Clouds SC SC CL SC SC SC FW FW FW FW SC SC SC SC SC SC SC B1 B1 SC SC SC PoP 12hr 10 10 20 40 40 QPF 12hr 0.04 0.01 0.04 0.07 0.09 Rain shwrs S S S S S S S S S S S S S S C C S S S Heat index 86 91 94 88 82 86 91 92 88 85 89 91 88 82 Max heat 86 94 93 86 92 92 85 91 90 Date Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 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 75 89 75 89 75 89 75 89 Temp 75 83 89 80 75 83 89 80 75 83 89 80 75 83 89 80 Dewpt 69 67 71 70 69 69 68 69 69 69 70 69 68 67 70 69 PWind dir E E E E E E E E Wind char LT GN GN GN LT GN LT GN Avg clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 PoP 12hr 30 30 20 20 20 40 10 40 Rain shwrs S C C C S S S S S S C C S S C C $$ PRZ008-192000- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 232 AM AST Tue May 19 2026 Date Tue 05/19/26 Wed 05/20/26 Thu 05/21/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 74 86 73 86 Temp 75 81 85 86 83 78 76 74 75 81 85 86 82 77 75 73 75 81 85 86 83 78 Dewpt 67 71 72 74 75 74 72 71 69 72 73 75 75 74 72 70 68 71 73 75 75 74 RH 76 72 65 68 77 88 87 90 82 74 67 70 79 90 90 90 79 72 67 70 77 88 Wind dir E E E E E E E E E E E E E E E E E E E NE E E Wind spd 12 13 10 23 20 17 14 12 12 12 14 20 18 18 16 14 11 14 8 12 16 9 Clouds SC FW FW B2 B2 B1 B1 SC FW CL FW B2 B2 B1 B1 SC SC SC SC B2 B2 B1 PoP 12hr 60 40 60 40 60 QPF 12hr 1.06 0.06 0.48 0.06 0.61 Rain shwrs S S L L C C S L L C C S S S S L L C Tstms S S S S S S Heat index 84 90 94 90 85 91 95 89 84 91 95 90 Max heat 84 9494 85 95 94 84 95 94 Date Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 74 86 74 86 74 86 74 86 Temp 74 81 86 78 74 81 86 78 74 81 86 78 74 81 86 78 Dewpt 71 72 75 74 71 73 75 74 71 72 74 74 71 72 75 74 PWind dir E E E E E E E E Wind char GN BZ GN BZ BZ BZ BZ BZ Avg clouds B1 SC SC B2 SC SC FW SC SC SC SC B1 SC FW SC B1 PoP 12hr 40 60 30 30 20 50 10 50 Rain shwrs C S L L C C C C S S C C S S C C Tstms S S $$ PRZ010-192000- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 232 AM AST Tue May 19 2026 Date Tue 05/19/26 Wed 05/20/26 Thu 05/21/26 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 72 91 72 91 Temp 73 83 89 91 86 78 75 73 74 83 89 91 86 78 75 73 74 83 89 91 86 78 Dewpt 68 71 73 74 75 74 72 70 70 72 74 75 75 74 72 70 69 72 73 75 75 74 RH 84 67 59 58 70 88 90 90 87 70 61 60 70 88 90 90 84 70 59 60 70 88 Wind dir E E E E NE NE E E E E E NE E E E E E E E NE E E Wind spd 5 4 2 2 3 5 4 4 5 3 2 4 2 4 6 5 5 5 4 4 6 5 Clouds FW CL CL B2 B2 SC SC CL CL CL CL B2 B2 SC SC CL CL SC SC B2 B2 SC PoP 12hr 60 30 70 30 70 QPF 12hr 0.77 0.04 0.71 0.03 0.88 Rain shwrs L L C S C L C C S S L L C Tstms S S S S S S Heat index 87 97101 95 89 98102 95 89 97102 95 Max heat 87 101 100 89 102 101 89 102 101 Date Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 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 91 72 91 72 91 72 91 Temp 73 83 91 78 73 83 91 78 73 83 91 78 73 83 91 78 Dewpt 71 72 76 74 71 73 76 74 71 72 75 74 71 72 75 74 PWind dir E NE E E E E E E Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC B2 B2 SC SC B1 SC SC SC B1 SC SC SC B1 PoP 12hr 30 60 50 60 20 50 20 60 Rain shwrs C L L C C L L S S C C S S L L Tstms S S S S S S $$ VIZ001-192000- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 232 AM AST Tue May 19 2026 Date Tue 05/19/26 Wed 05/20/26 Thu 05/21/26 AST 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 79 87 79 87 Temp 80 84 87 88 85 82 80 79 80 84 86 87 85 82 80 79 80 84 86 87 85 82 Dewpt 72 73 73 73 73 73 73 73 73 73 73 73 72 71 72 72 72 73 73 73 73 73 RH 77 70 63 61 67 74 79 82 79 70 65 63 65 69 77 79 77 70 65 63 67 74 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 2321 21 20 19 20 21 20 21 23 21 20 20 20 19 23 20 17 19 16 16 18 Clouds B2 B1 B1 SC SC B1 SC SC FW SC SC B1 B1 CL CL FW FW B1 B1 B1 B1 SC PoP 12hr 40 30 40 40 40 QPF 12hr 0.16 0.06 0.14 0.04 0.12 Rain shwrs L C C C S C S S S C C C S S C C C C C Heat index 84 91 94 96 92 87 85 83 84 90 93 94 91 86 84 83 84 90 93 94 91 87 Max heat 91 96 95 87 90 94 93 85 90 94 94 Date Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 AST 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 79 88 79 88 79 88 80 88 Temp 79 84 88 82 79 84 88 82 79 84 88 83 80 85 88 82 Dewpt 73 73 73 74 73 73 73 73 73 73 73 74 73 73 74 74 PWind dir E E E E E E E E Wind char BZ BZ BZ BZ BZ BZ BZ BZ Avg clouds SC SC SC SC SC SC SC B1 SC SC SC SC SC B1 B2 B1 PoP 12hr 30 30 20 50 30 30 50 50 Rain shwrs C C C S S S C C C C C C C C C C $$ VIZ002-192000- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 232 AM AST Tue May 19 2026 Date Tue 05/19/26 Wed 05/20/26 Thu 05/21/26 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 76 88 Temp 77 83 87 88 84 79 77 75 77 83 87 88 85 80 78 76 77 83 87 88 85 80 Dewpt 72 73 73 73 73 73 73 72 72 73 73 73 73 72 72 72 72 73 73 73 73 73 RH 85 72 63 61 70 82 87 90 85 72 63 61 67 77 82 87 85 72 63 61 67 79 Wind dir E E E E E E E E E E E E E E E E E E E E E E Wind spd 17 19 19 18 18 18 19 17 18 19 19 19 19 17 17 18 16 17 17 17 16 16 Clouds B1 B1 SC SC SC SC SC SC SC SC SC B1 B1 FW FW CL CL SC SC SC SC SC PoP 12hr 30 30 40 10 30 QPF 12hr 0.12 0.08 0.12 0.01 0.06 Rain shwrs C C C C S S S C S S S C C S S C C S Heat index 89 94 96 91 83 88 94 96 91 84 89 94 96 91 84 Max heat 89 96 95 88 96 95 82 89 96 95 Date Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 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 88 76 88 76 88 Temp 76 83 88 80 76 83 88 80 76 83 88 80 76 83 88 80 Dewpt 72 73 73 73 73 73 73 73 72 73 74 73 72 73 74 74 PWind dir E E E E E E E E Wind char BZ BZ BZ BZ BZ BZ BZ BZ Avg clouds SC SC SC SC SC SC SC SC SC B1 B1 SC SC B1 B1 B1 PoP 12hr 40 30 30 30 40 40 40 40 Rain shwrs C C S C C C C C C C C C C C C C $$