PGUM TAF

Terminal aerodrome forecast for Guam International (GUM · PGUM), Tamuning, GU. Issued 18 Sep 2026 0520Z, valid 0600Z to 1200Z, decoded period by period below. · Open on the map

All of Guam International — runways, frequencies, charts and live weather

TAF issued 18 Sep 2026 0520Z

valid 0600Z to 1200Z

TAF PGUM 180520Z 1806/1912 26008KT P6SM VCSH FEW014 SCT024 SCT050 FM180800 26008KT P6SM VCSH SCT018 SCT035 BKN100 PROB30 1812/1818 26010G20KT 3SM SHRA SCT015 BKN025

Times are UTC (Zulu), as they appear in the bulletin.

Period by period

Period (UTC)	Change	Wind	Vis	Ceiling	Sky	Cat
0600Z to 0800Z	Initial	260° at 8 kt	6+ SM	Clear	Few at 1,400 ft AGL, Scattered at 2,400 ft AGL, Scattered at 5,000 ft AGL	VFR
0800Z to 1200Z	FM	260° at 8 kt	6+ SM	10,000 ft BKN	Scattered at 1,800 ft AGL, Scattered at 3,500 ft AGL, Broken at 10,000 ft AGL	VFR
1200Z to 1800Z	PROB	260° at 10-20 kt	3 SM	2,500 ft BKN	Scattered at 1,500 ft AGL, Broken at 2,500 ft AGL	MVFR

What the change groups mean

FM: From — a rapid, permanent change to the conditions that follow.

What the categories mean

VFR: Visual flight rules — ceiling above 3,000 ft and visibility greater than 5 SM.
MVFR: Marginal VFR — ceiling 1,000 to 3,000 ft and/or visibility 3 to 5 SM.

Frequently asked

What is the current TAF for PGUM?

The forecast issued 18 Sep 2026 0520Z for Guam International reads: TAF PGUM 180520Z 1806/1912 26008KT P6SM VCSH FEW014 SCT024 SCT050 FM180800 26008KT P6SM VCSH SCT018 SCT035 BKN100 PROB30 1812/1818 26010G20KT 3SM SHRA SCT015 BKN025

How far ahead does a TAF forecast?

A TAF covers a 24-hour period at most airports and 30 hours at larger ones, issued four times a day at 0000Z, 0600Z, 1200Z and 1800Z. It describes conditions within roughly 5 statute miles of the airport, not the surrounding area.

What do FM, BECMG and TEMPO mean?

FM (from) marks a rapid, permanent change at the stated time. BECMG (becoming) marks a gradual change over the stated window. TEMPO marks conditions expected for less than half the period, in spells of under an hour each. PROB30 and PROB40 give the probability of the conditions that follow.

More about PGUM

Forecasts from the US National Weather Service Aviation Weather Center. Times are UTC (Zulu). For planning and education only — always confirm with an official preflight briefing.

Something here wrong or out of date? Report a data problem.