Daily weather brief — Guam, 2026-09-06
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: MILD — high near 86°F.
→ Comfortable day. Normal hydration is fine. - Rain / storm outlook: YES — thunderstorms likely (37% 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: Sunday — scattered showers and thunderstorms, high 86°F. Wind NW 5 mph mph. Heat index stays close to the air temperature today; humidity is the main comfort factor.
What to do: Comfortable day. Normal hydration is fine.
Tonight: Sunday Night — isolated showers and thunderstorms, low 78°F. Wind NNW 0 to 5 mph mph.
What to do: keep an umbrella by the door for the morning commute.
2–3 day outlook:
- Labor Day: isolated rain showers, 87°F, wind N 5 mph mph.
- Monday Night: scattered rain showers, 78°F, wind N 0 to 5 mph mph.
- Tuesday: isolated rain showers, 87°F, wind NNE 5 to 10 mph mph.
- Tuesday Night: chance rain showers, 78°F, wind NNE 0 to 5 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.