List of largest cities in Guam
Dededo Village
Dededo
Yigo Village
Yigo
Tamuning-Tumon-Harmon Village
Tamuning
Mangilao Village
Mangilao
Barrigada Village
Barrigada
Santa Rita Village
Santa Rita
Weather, climate, temperature by months in Guam
| Season | Autumn | Winter | Spring | Summer | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Year | ||
| Record high | °C | 33 | 33 | 32 | 32 | 33 | 32 | 33 | 34 | 33 | 34 | 34 | 33 | 34 | |
| Average high | °C | 30 | 30 | 30 | 30 | 29 | 29 | 30 | 30 | 31 | 31 | 31 | 30 | 30 | |
| Average temperature | °C | 27 | 27 | 27 | 27 | 26 | 26 | 27 | 27 | 27 | 28 | 27 | 27 | 27 | |
| Average low | °C | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | |
| Record low | °C | 19 | 19 | 19 | 19 | 17 | 17 | 17 | 18 | 19 | 20 | 20 | 18 | 17 | |
| Rain | Days | 25 | 26 | 25 | 23 | 20 | 18 | 19 | 20 | 20 | 24 | 26 | 26 | 270 | |
| Fog | Days | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 11 | |
| Thunderstorms | Days | 4 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 6 | 20 | |
| Average precipitation | Mm. | 273 | 247 | 198 | 134 | 100 | 84 | 68 | 78 | 100 | 132 | 233 | 319 | 1966 | |
| Relative humidity | % | 84 | 83 | 81 | 79 | 78 | 77 | 75 | 76 | 77 | 78 | 81 | 84 | 79 | |
| Relative humidity morning | % | 89 | 88 | 86 | 85 | 83 | 83 | 83 | 83 | 84 | 85 | 87 | 88 | 85 | |
| Relative humidity evening | % | 78 | 77 | 76 | 74 | 72 | 69 | 68 | 68 | 70 | 72 | 76 | 77 | 73 | |
| Wind speed | Km/h | 11 | 13 | 17 | 18 | 19 | 18 | 18 | 18 | 16 | 15 | 12 | 12 | 15 | |
| Day Length | Hours | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | |
| Dew point | °C | 24 | 24 | 24 | 23 | 22 | 22 | 22 | 23 | 23 | 24 | 24 | 24 | 277 | |
| Growing degree-day | °C | 647 | 670 | 644 | 649 | 630 | 570 | 638 | 640 | 675 | 660 | 674 | 668 | 7764 | |
| Solar radiation, global | Mj/m2 | 20 | 19 | 18 | 18 | 19 | 21 | 24 | 26 | 25 | 23 | 22 | 20 | 21 | |
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