Land in Oseania

Guam Vær Værmelding

Guam weather: 25°C, heavy drizzle. Time for time forecast, 14-day outlook, UV, air quality and the best time til visit.

🌧️ 25°C now🕔 12:04 PM local📅 Best: januar, februar and desember👥 170.000

Guam weather in august

31°
average high · low 25°C
★★☆☆☆
ranked #11 of 12 months

One of the harder months here - go in med a plan.

Average high31°C
Average low25°C
Mean28°C
Regnfall334 mm

august runs close til the annual average in Guam.

Compare med september.

Vær map for Guam

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Animated layers by Vindy. For pin-level detail and nearby places, see the interactive map below.

Klima in Guam month by month

Average high, average low and total rainfall, based on three years of reanalysis data.

janfebmaraprmaijunjulaugsepoktnovdesLine: average high · Bars: rainfall
MånedAvg highAvg lowRegnfallRating
januar30°25°63 mm★★★★☆
februar30°25°62 mm★★★★☆
mars31°25°120 mm★★★★☆
april31°25°126 mm★★★☆☆
mai32°26°136 mm★★★☆☆
juni32°26°220 mm★★★☆☆
juli31°25°421 mm★★☆☆☆
august31°25°334 mm★★☆☆☆
september31°25°335 mm★★☆☆☆
oktober30°25°374 mm★★☆☆☆
november31°26°140 mm★★★☆☆
desember31°26°80 mm★★★★☆

Klima type: Tropical. Kilde: Open-Meteo archive (ERA5).

Beste tid å besøke Guam

Go in januar, februar and desember. These months score highest on comfortable temperatures, low rainfall and useful daylight.

Hardest months: juli, august and september - expect the least comfortable mix of heat, cold or rain.

januar★★★★☆
februar★★★★☆
mars★★★★☆
april★★★☆☆
mai★★★☆☆
juni★★★☆☆
juli★★☆☆☆
august★★☆☆☆
september★★☆☆☆
oktober★★☆☆☆
november★★★☆☆
desember★★★★☆

What til pack, what til skip

Pack for the next 7 days
  • Lightweight, light-coloured clothing and a refillable water bottle
  • sønglasses, a brimmed hat and SPF 30+
  • A packable rain shell - 7 of the next 7 days carry a real chance of rain
  • Insect repellent and quick-dry fabrics for humidity
Worth avoiding
  • Avoid exposed ridgelines, small boats and rooftop viewpoints while gusts stay above 57 km/h.
  • If your dates are flexible, avoid juli, august and september - historically the least comfortable months here.

Se prognosen for Guam etter tidsintervall

Guam weather - more answers

Explore Guam

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Frequently asked questions

Where is Guam?

Guam er et land i Oseania. Its coordinates are 13.4443, 144.7937. It lies in Oseania.

What is the weather like in Guam akkurat nå?

It is currently 25°C (76°F) med heavy drizzle. Luftfuktighet is 95% and wind is 16 km/h.

When is the best time til visit Guam?

januar, februar and desember offer the most comfortable conditions in Guam, which has a tropical climate. juli, august and september are usually the hardest months for outdoor plans.

What time zone is Guam in?

Guam observes Pacific/Guam (UTC+10:00). The local time is 12:04 PM.

How many people live in Guam?

Guam has a population of approximately 170.000.

Related articles

Data sources and methodology

Place dataUSPOTUS Atlas dataset (countries-v1) - coordinates, hierarchy and facts.
Værmelding and observationsOpen-Meteo (ECMWF and national models).
Luftkvalitet and pollenCopernicus CAMS via Open-Meteo. US AQI scale.
Klima averagesERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years.
MethodScores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown.

Last updated oktober 1, 2026 at 12:04 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.

Davil Hofile
Written byWriter at USPOTUS

Davil Hofile is a writer at USPOTUS covering breaking news, NFL updates, viral stories, entertainment, pets, and lifestyle. He specializes in transforming complex news into clear, trustworthy, and engaging articles that help readers quickly understand what's happening across the United States. His reporting follows Google's E-E-A-T guidelines, emphasizing accuracy, credible sources, and practical value for readers.

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