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Sun & Beach Potential

35/100

Poor

Based on optimal climate

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Seasonality

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Best Time

January, February, March

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Avoid

Avoid (Extreme Weather)

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Weather

27°C – 29°C

Avg Temp Range

Precipitation

Seasonal (check heatmap)

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Good For

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GuamSun & Beach climate guide
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Tip for your trip

The best months for a sun and beach holiday in Tumon are from January, February, March. If you're planning to travel during this period, it's a good idea to arrange your stay early — especially in popular beach areas.

Explore the best places to stay in Tumon

Climate Heatmap

See at a glance which months offer the best sun & beach conditions — based on temperature, rainfall and climate scores.

Sun & Beach conditions breakdown

Monthly weather & climate data for Tumon

MonthClimate ScorePredictabilityAvg TempRain (mm)
January
35Poor
Warm temperatures. High rain conditions.
Predictability 30Weather conditions can vary significantly.
27°315
February
35Poor
Warm temperatures. High rain conditions.
Predictability 38Weather conditions can vary significantly.
27°258
March
35Poor
Warm temperatures. High rain conditions.
Predictability 38Weather conditions can vary significantly.
27°223
April
35Poor
Warm temperatures. High rain conditions.
Predictability 38Weather conditions can vary significantly.
28°298
May
35Poor
Warm temperatures. High rain conditions.
Predictability 38Weather conditions can vary significantly.
28°347
June
35Poor
Warm temperatures. High rain conditions.
Predictability 30Weather conditions can vary significantly.
29°499
July
35Poor
Warm temperatures. High rain conditions.
Predictability 30Weather conditions can vary significantly.
28°852
August
35Poor
Warm temperatures. High rain conditions.
Predictability 30Weather conditions can vary significantly.
28°1408
September
35Poor
Warm temperatures. High rain conditions.
Predictability 30Weather conditions can vary significantly.
28°1210
October
35Poor
Warm temperatures. High rain conditions.
Predictability 30Weather conditions can vary significantly.
28°983
November
35Poor
Warm temperatures. High rain conditions.
Predictability 30Weather conditions can vary significantly.
28°706
December
35Poor
Warm temperatures. High rain conditions.
Predictability 30Weather conditions can vary significantly.
28°470

Source: Historical climate averages (30-year observation).

Quick summary: visiting Tumon

When is the best time to visit Tumon for sun & beach?

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The best time to visit Tumon for sun & beach is typically in January, February, March, when the weather is most favorable.

When is the rainy season in Tumon?

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Rainy season typically: January–December. It is generally better to avoid these months for sun & beach.

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Plan your sun & beach holiday to Tumon

Now you know the best time to visit Tumon for a sun and beach holiday — here are the most useful next steps to plan your trip.

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Where to stay

Find the best beach resorts, budget stays, and top locations.

Best places to stay
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Things to do

Discover beach activities, excursions, and memorable experiences.

Best things to do
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Stay connected

Avoid high roaming costs and stay online during your trip.

Best eSIM for Guam
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