Best Time to Visit Guam

Two Lover's Point, Guam (Michael W Murphy)  [flickr.com]  CC BY 
License Information available under 'Proof of Image Sources'
On this page, you will find information about the climate and the best time to visit Guam. We created climate tables and charts for the location of Tamuning. These contain details about temperatures, precipitation and more.

Furthermore, we analyzed all climate data and provide a recommendation about which months are best to visit Guam for your holiday.

Climate Overview

Thermometer Symbol 23 °C to 32 °C
Waves Symbol 28 °C to 30 °C
Rainy Cloud Symbol 2.3615.98 in (16 – 25 Days of Rain)
Show temperatures in degree

General & Geographical Location

Guam is the largest island of the Mariana archipelago in the western Pacific and is home to about 190,000 inhabitants on an area of about 340 square miles.

As this is a so-called non-incorporated US foreign territory, Head of State Guams is the current US President Barack Obama. Guam has internal autonomy, so that although the inhabitants are Americans, they are not allowed to vote in the US elections, for example.

The island is located on a flat lime plateau about 1300 miles east of the Philippines and about 1500 miles south of the Japanese island Honsh?. This situation has always given Guam a high military significance for the USA.

But Guam is also a very popular tourist destination and the second most visited destination in the Pacific after Hawaii. The highest elevation is Mount Lamlam, 406 meters high.

The official language of the office is English, paid in US dollars. Many inhabitants speak Chamorro, the language of the original wine inhabitants, and Filipino language variants are also very common.

Climate in Guam

Island Coast (Jonathan Miske)  [flickr.com]  CC BY-SA 
License Information available under 'Proof of Image Sources' Due to its proximity to the equator, Guam has high temperatures all year round and a typically tropical South Sea climate. The island is one of the wettest regions in the world, but its breathtaking beauty is impressive. Basically two travel times can be distinguished on Guam:

The dry season runs from about mid-December to the end of June, has a lower humidity and somewhat more moderate day temperatures. December is still quite humid as a transition month, especially in the first half of the month.

At the beginning of July at the latest, the rainy season starts on Guam, trade winds now carry moist Pacific air to the island and heavy rainfalls and often thunderstorms occur almost every afternoon and evening. The risk of typhoons is quite low, but statistically Guam is affected about every 8 years during the rainy season.

Best Time to Visit Guam: Overview

JanuaryJan
Best time to traveltime
PerfectPerf. climate in
Tamuning
FebruaryFeb
Best time to traveltime
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MarchMar
Best time to traveltime
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AprilApr
Best time to traveltime
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MayMay
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JuneJun
Very hot (average up to 28 °C)
Up to 7.75 in of rainof rain
JulyJul
Up to 0.11 in of rainof rain
AugustAug
Up to 16.39 in of rainof rain
SeptemberSep
Up to 13.58 in of rainof rain
OctoberOct
Up to 11.74 in of rainof rain
NovemberNov
Very hot (average up to 28 °C)
Up to 8.47 in of rainof rain
DecemberDec
Best time to traveltime
PerfectPerf. climate in
Tamuning

When is the best time to travel in Guam?


The two different seasons already give an idea of the best time to travel on Guam, it is of course recommended to prefer the much more pleasant dry season on the island. Around Christmas it is already getting very friendly, but also traditionally very crowded and expensive in Guam.

We therefore recommend the period from mid-January to the end of May as the best travel time for the island paradise in Micronesia (South Seas). The dry season offers the best conditions for diving, snorkelling, swimming and all kinds of water sports. February is ideal for active holidaymakers, as it is not yet getting so hot.

Climate Chart Guam

Tamuning

Climate Chart Tamuning
Show temperatures in degree

Source of Data: German Weather Service (Offenbach) and Wikipedia

Climate Table Guam

In the following, you will find the climate table for Guam, containing information about Temperatures, Precipitation, Water Temperatures, and Hours of Sunshine.

Temperatures, Precipitation, Sunshine in Tamuning (Guam)

JanFebMarAprMayJunJulAugSepOctNovDec
Day Temperature30°29°30°31°32°32°31°31°31°31°31°30°
Night Temperature23°23°24°25°25°25°25°25°25°25°25°25°
Water Temperature28°28°28°28°29°29°29°30°29°30°29°28°
Precipitation (inch)3.93.392.352.844.287.7511.451613.5811.748.086
Rainy days191617171923252524252322
Hours of Sunshine677777554455
Show temperatures in degree
Temperatures
The annual average temperature in Tamuning is 27.7 °C.

For comparison: London 11 °C, NYC 12 °C, LA 17.9 °C

Warmest month: June (28.4 °C)
Coldest month: February (26.7 °C)

The maximum water temperature in Tamuning is 30 °C. You can take a bath at these temperatures.

Months with water temperature of at least 21 °C (adequate for beach vacation):
all months

Precipitation
Overall annual precipitation: 91.37 inch on 255 rainy days

For comparison: London 24.06 in, NYC 41.57 in, LA 12.01 in

Rainy season (months with more than 6.9 in of precipitation): June, July, August, September, October, and November
Overall precipitation in the rainy season: 68.6 in

You cannot expect snow in any month in Tamuning.

Sunshine
As our climate table shows, April is the sunniest month with an average of 7.1 hours of sunshine per day. Over the year, there are 5.6 hours of sunshine per day on average. For comparison: London has 4.1, NYC has 7 and LA has 8.9 hours of sunshine per day on average.

Highlights and Sights


Even if the American culture has become very formative for Guam today, impressive remnants of the Spanish occupation can still be found on the island. Especially the Latte Stone Park, Two Lovers Point and the Plaza de Espana are worth a visit.

The two old shelters Fort Santa Agueda and Fort Nuestra Senora de la Soledad are also popular attractions in Guam. But the main attractions of the island are of course its beautiful beaches and the impressive underwater world, which made Guam a popular honeymoon destination and dream destination for divers.

The best beaches in Guam are Ritidian Point, Tumon Beach and Gun Beach. The latter passes directly into the neighbouring Ypao Beach Park at the Hilton Hotel. Under water, both the colourful diversity of species and the impressive wrecks on the seabed inspire with fantastic diving conditions.

Current Weather and Forecast

Current Weather in Tamuning (Station Socio)
clear sky     clear sky, 26.8 °C
Clouds: 1 %       Wind: 7 mph O
Air Pressure: 1015 hPa       Humidity: 74 %
Last updated: 18th Apr 2019, 02:13 pm
The next days …
19th Apr 201920th Apr 201921st Apr 201922nd Apr 201923rd Apr 201924th Apr 2019
broken clouds27 °C to 28 °Clight rain27 °C to 28 °Clight rain27 °C to 29 °Covercast clouds27 °C to 29 °Covercast clouds28 °C to 29 °Covercast clouds27 °C to 29 °C
27 °C to 28 °C27 °C to 28 °C27 °C to 29 °C27 °C to 29 °C28 °C to 29 °C27 °C to 29 °C
Clouds: 53 %Clouds: 100 %Clouds: 32 %Clouds: 93 %Clouds: 100 %Clouds: 100 %
No Precipitation0.01 in of rainNo PrecipitationNo PrecipitationNo PrecipitationNo Precipitation
Weather information provided by OpenWeatherMap. (CC BY-SA)
Show temperatures in degree

South Pacific Islands: Regions

Guam is part of the holiday destination South Pacific Islands. We analyzed the climate for additional regions, in order to provide you with information about the best time to visit and the expected holiday weather:

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Windy (Jonathan Miske)  [flickr.com]  CC BY-SA 
License Information available under 'Proof of Image Sources'
2008-01-20_02-07-44.t.jpg (Aaron Headly)  [flickr.com]  CC BY 
License Information available under 'Proof of Image Sources'
Tumon Bay (Shuichi Aizawa)  [flickr.com]  CC BY 
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