Is Tamuning-Tumon-Harmon Village hot in January?
Days are typically warm at 29.9°C, while nights average 24.1°C.
Guam · 1991–2020 normal
Typical January weather in Tamuning-Tumon-Harmon Village: 29.9°C by day, 24.1°C at night, 128 mm of rain over 14.8 wet days. These are measured 1991–2020 station normals, not a forecast.
In the year-round weather comparison, January scores 40 out of 100 (March leads the year at 49). Daylight is calculated as 11 h 24 from latitude 13.49°. Open-water sea temperature is 27.9°C (16 km from the place centre).
January at a glance
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Days are typically warm at 29.9°C, while nights average 24.1°C.
The measured monthly average is 128 mm across about 15 wet days.
There are about 11 h 24 between sunrise and sunset at mid-month, calculated from the place latitude.
January ranks 4 of 12 in our weather comparison; March ranks first.
Event window
The nearest open-water NOAA OISST 1991–2020 cell averages 27.9°C in January. A sheltered bay can run warmer than that open-water cell.
The evidence behind this page
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The weather comparison for Tamuning-Tumon-Harmon Village is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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