Guam
Best Time to Visit
Guam
Visit in March — score 75/100 · avg high 83°F · 11 rainy days
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Monthly Travel Scores
How we scoreScores reflect weather comfort (35%), dry days (35%), daylight hours (15%), crowd levels (10%), and cost (5%) — weighted for typical travelers preferring warm, dry conditions. Customize weights in the interactive tool.January
February
#3March
#1April
#2May
June
July
August
September
October
November
December
Monthly Weather Data
| Month | Score | Avg °F | High °F | Low °F | Rain Days | Precip (mm) | Daylight | Crowds | Cost |
|---|---|---|---|---|---|---|---|---|---|
| January | 47 | 82° | 83° | 80° | 21 | 84 | 11.3h | High | Average |
| February | 69 | 81° | 83° | 79° | 12 | 47 | 11.6h | High | Average |
| March | 75 | 81° | 83° | 79° | 11 | 42 | 11.9h | Moderate | Average |
| April | 72 | 82° | 84° | 80° | 12 | 49 | 12.3h | Moderate | Average |
| May | 64 | 83° | 85° | 81° | 16 | 65 | 12.6h | Moderate | Below avg |
| June | 56 | 84° | 86° | 81° | 20 | 80 | 12.8h | Moderate | Below avg |
| July | 47 | 83° | 86° | 81° | 31 | 203 | 12.7h | Moderate | Average |
| August | 46 | 83° | 85° | 81° | 31 | 278 | 12.4h | Moderate | Average |
| September | 47 | 83° | 85° | 81° | 30 | 283 | 12.1h | Moderate | Below avg |
| October | 44 | 83° | 85° | 81° | 31 | 258 | 11.7h | Moderate | Average |
| November | 43 | 84° | 85° | 82° | 28 | 113 | 11.4h | Moderate | Average |
| December | 53 | 83° | 85° | 81° | 17 | 67 | 11.2h | High | Above avg |
Seasonal Breakdown
Spring
- Score
- 70/100
- High
- 84°F
- Low
- 80°F
- Rain days
- 13/mo
- Crowds
- moderate
Spring in Guam (March, April, May) brings average highs of 84°F and lows of 80°F, with about 13 rainy days per month. Expect moderate tourist crowds and average accommodation rates. The overall travel score averages 70/100, with March being the strongest month of the season at 75/100.
Summer
- Score
- 50/100
- High
- 86°F
- Low
- 81°F
- Rain days
- 27/mo
- Crowds
- moderate
Summer in Guam (June, July, August) brings average highs of 86°F and lows of 81°F, with about 27 rainy days per month. Expect moderate tourist crowds and average accommodation rates. The overall travel score averages 50/100, with June being the strongest month of the season at 56/100.
Fall
- Score
- 45/100
- High
- 85°F
- Low
- 81°F
- Rain days
- 30/mo
- Crowds
- moderate
Fall in Guam (September, October, November) brings average highs of 85°F and lows of 81°F, with about 30 rainy days per month. Expect moderate tourist crowds and average accommodation rates. The overall travel score averages 45/100, with September being the strongest month of the season at 47/100.
Winter
- Score
- 56/100
- High
- 84°F
- Low
- 80°F
- Rain days
- 17/mo
- Crowds
- high
Winter in Guam (December, January, February) brings average highs of 84°F and lows of 80°F, with about 17 rainy days per month. Expect high tourist crowds and above average accommodation rates. The overall travel score averages 56/100, with February being the strongest month of the season at 69/100.
Crowd and cost data estimated from regional travel patterns for this destination.
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Frequently Asked Questions
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Fine-Tune Your Guam Trip
Want more control? Adjust the exact weight of every factor — temperature comfort, dry weather, daylight hours, crowd levels, and cost — with interactive sliders and see scores update in real time.