Daily weather brief — Guam, 2026-08-29
TL;DR — the four things that matter today
- Beach / water safety: IN — ocean conditions look manageable.
→ Beach day is fine. Still watch the flags and don’t swim alone. - Heat / comfort: WARM — high near 87°F.
→ Stay hydrated and take shade breaks if you’re working outdoors. - Rain / storm outlook: YES — thunderstorms likely (28% chance).
→ Bring an umbrella or rain jacket, plan indoor backup for outdoor events, and unplug sensitive electronics if storms hit. - Typhoon / emergency threat: NO — no tropical threat in the Marianas.
→ Nothing to prepare for right now. Recheck the brief tomorrow.
The full brief
Active alerts: none.
Today: Saturday — scattered showers and thunderstorms, high 87°F. Wind NW 10 mph mph. Heat index stays close to the air temperature today; humidity is the main comfort factor.
What to do: Stay hydrated and take shade breaks if you’re working outdoors.
Tonight: Saturday Night — scattered showers and thunderstorms, low 77°F. Wind NW 10 mph mph.
What to do: keep an umbrella by the door for the morning commute.
2–3 day outlook:
- Sunday: scattered showers and thunderstorms, 86°F, wind NW 10 mph mph.
- Sunday Night: scattered showers and thunderstorms, 76°F, wind WNW 5 to 10 mph mph.
- Monday: scattered showers and thunderstorms, 87°F, wind W 5 to 10 mph mph.
- Monday Night: chance showers and thunderstorms, 77°F, wind WSW 5 to 10 mph mph.
What to do: plan outdoor events around the wettest day in the outlook, and book indoor backups if rain chances are high.
Have a safe day, and check back tomorrow for the next brief.