FOMY50 PGUM 090910 PFMGUM Point Forecast Matrices National Weather Service Tiyan GU 710 PM ChST Thu Jul 9 2026 GUZ001-091800- Guam International Airport-Tiyan GU 13.48N 144.79E Elev. 248 ft 710 PM ChST Thu Jul 9 2026 Date Thu 07/09/26 Fri 07/10/26 Sat 07/11/26 Sun ChST3hrly 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 Min/Max 76 88 77 88 79 Temp 79 77 76 77 83 88 87 85 82 79 77 78 84 88 87 85 83 81 80 Dewpt 79 77 76 77 78 78 78 78 78 78 77 78 78 78 79 79 79 79 79 RH 100100100100 85 72 75 80 88 97100100 82 72 77 82 88 94 97 Wind dir NE N NE NE NE NE NE NE N N N N NE NE NE NE NE E E Wind spd 5 5 5 6 6 8 9 9 6 6 6 10 12 11 12 10 9 8 6 Clouds SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 10 20 20 20 40 QPF 12hr 0.01 0.04 0.10 0.17 0.28 Rain shwrs S S S S S S S S S S S S S S S C C C C Tstms S S S S S S S S S S S S S S S Heat index 84 93101100 96 91 84 94102101 98 94 90 85 Max heat 91 93 101 99 89 94 102 101 93 High Surf Y Y Y Y Y Y Date 07/12/26 Mon 07/13/26 Tue 07/14/26 Wed 07/15/26 Thu 07/16/26 ChST6hrly 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 Max/Min 88 79 87 81 86 79 86 79 88 Temp 84 87 83 80 84 86 84 82 84 85 82 79 83 85 82 80 84 87 Dewpt 80 80 80 79 79 79 79 79 79 79 79 79 79 79 79 79 76 74 PWind dir E SE SE S SW S SW SW SW Wind char GN GN GN GN GN GN GN LT LT Avg clouds B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 40 30 30 40 40 30 30 30 30 Rain shwrs C C C S C C C C C C C C C C C C C C Tstms S S S S S S S S S S S S S S S S S $$ MPZ001-091800- Rota International Airport-Sinapalu MP 14.17N 145.23E Elev. 592 ft 710 PM ChST Thu Jul 9 2026 Date Thu 07/09/26 Fri 07/10/26 Sat 07/11/26 Sun ChST3hrly 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 Min/Max 77 87 78 86 79 Temp 80 78 77 78 83 87 87 85 82 80 78 79 83 86 85 84 82 81 79 Dewpt 78 78 77 78 78 78 78 78 78 78 78 78 78 79 79 79 79 79 79 RH 94100100100 85 75 75 80 88 94100 97 85 80 82 85 91 94100 Wind dir N N NE NE NE NE NE NE N N N N NE NE NE NE E E E Wind spd 4 5 5 8 8 8 9 9 8 8 6 10 10 11 13 13 11 11 9 Clouds SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 10 10 20 30 40 QPF 12hr 0.02 0.01 0.10 0.22 0.28 Rain shwrs S S S S S S S S S S S C C C C C C C C Tstms S S S S S S S S S S S Heat index 85 93100 99 96 92 86 92 98 98 96 93 90 85 Max heat 90 93 100 98 90 92 99 98 92 High Surf Y Y Y Y Y Y Date 07/12/26 Mon 07/13/26 Tue 07/14/26 Wed 07/15/26 Thu 07/16/26 ChST6hrly 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 Max/Min 87 79 86 81 84 79 85 78 85 Temp 84 86 83 79 83 85 83 82 83 84 81 79 82 84 81 79 83 85 Dewpt 80 80 80 79 79 79 79 79 79 79 79 79 79 79 79 79 75 74 PWind dir E SE SE S S S S SW SW Wind char GN GN GN GN GN GN GN GN GN Avg clouds B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 40 30 30 30 30 30 30 30 30 Rain shwrs C C C S C C C C C C C C C C C C C S Tstms S S S S S S S S S S S S S S S $$ MPZ002-091800- Tinian-San Jose MP 14.97N 145.63E Elev. 74 ft 710 PM ChST Thu Jul 9 2026 Date Thu 07/09/26 Fri 07/10/26 Sat 07/11/26 Sun ChST3hrly 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 Min/Max 76 88 77 87 79 Temp 79 77 76 77 83 88 87 85 82 79 78 78 83 86 86 85 83 81 79 Dewpt 78 77 76 77 78 78 78 78 78 78 78 78 78 79 79 79 79 79 79 RH 97100100100 85 72 75 80 88 97100100 85 80 80 82 88 94100 Wind dir NE NE NE NE NE NE NE NE NE NE NE NE NE NE E NE E E E Wind spd 4 4 4 6 6 6 9 8 8 8 6 9 11 12 12 12 12 11 9 Clouds SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 20 20 20 30 40 QPF 12hr 0.03 0.02 0.04 0.25 0.15 Rain shwrs S S S S S S S S S S S C C C C C C C C Tstms S S S S S S S S S S S Heat index 84 93101100 97 92 85 93100 99 97 93 90 85 Max heat 90 93 101 99 90 93 100 99 92 High Surf Y Y Y Y Y Y Date 07/12/26 Mon 07/13/26 Tue 07/14/26 Wed 07/15/26 Thu 07/16/26 ChST6hrly 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 Max/Min 88 79 87 81 86 78 88 77 88 Temp 84 87 83 79 83 86 84 82 84 85 82 79 84 87 82 77 83 87 Dewpt 80 80 80 79 79 79 79 79 79 79 79 79 79 79 79 77 75 75 PWind dir E SE SE S S S SW SW SW Wind char GN GN GN GN GN GN GN GN GN Avg clouds B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC PoP 12hr 40 30 30 30 20 30 30 30 20 Rain shwrs C C C S C C C S S S C C C C C S S S Tstms S S S S S S S S S S S S S S S S S $$ MPZ003-091800- Saipan International Airport-Obyan MP 15.11N 145.72E Elev. 215 ft 710 PM ChST Thu Jul 9 2026 Date Thu 07/09/26 Fri 07/10/26 Sat 07/11/26 Sun ChST3hrly 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 UTC 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 Min/Max 76 88 77 87 79 Temp 79 77 76 77 83 88 87 85 82 79 78 78 83 86 86 84 83 81 79 Dewpt 78 77 76 77 78 78 78 78 78 78 78 78 78 79 79 79 79 79 79 RH 97100100100 85 72 75 80 88 97100100 85 80 80 85 88 94100 Wind dir NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE E E E Wind spd 4 4 4 5 6 6 9 8 8 8 6 9 11 12 12 13 12 11 9 Clouds SC SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 20 20 20 30 40 QPF 12hr 0.04 0.02 0.05 0.24 0.15 Rain shwrs S S S S S S S S S S S C C C C C C C C Tstms S S S S S S S S S S S Heat index 84 93101100 97 92 85 93100 99 97 93 90 85 Max heat 90 93 101 99 90 93 100 99 92 High Surf Y Y Y Y Y Y Date 07/12/26 Mon 07/13/26 Tue 07/14/26 Wed 07/15/26 Thu 07/16/26 ChST6hrly 10 16 22 04 10 16 22 04 10 16 22 04 10 16 22 04 10 16 UTC 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 Max/Min 88 79 87 81 86 78 88 77 88 Temp 84 87 83 79 83 86 84 82 84 85 82 79 84 87 82 77 83 87 Dewpt 80 80 80 79 79 79 79 79 79 79 79 79 79 79 79 77 75 75 PWind dir E SE SE S S S S SW SW Wind char GN GN GN GN GN GN GN GN GN Avg clouds B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC PoP 12hr 40 30 30 30 20 30 30 30 20 Rain shwrs C C C S C C C S S S C C C C C S S S Tstms S S S S S S S S S S S S S S S S S $$