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The weather in December in Guam
It's hot in December in Guam with an average temperature of 31°C. Temperatures this month range from a low of 30°C to a high of 31°C. At night, you can expect temperatures between 25°C and 27°C.
Looking for sun? December isn’t a good month to be in Guam. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in December for Guam. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 33°C in 2014, Guam reached the highest temperature in December over the past 10 years. The lowest daytime temperature in this month was 26°C in 2016. The extreme nighttime temperatures ranged from a lowest recorded value of 16°C to a highest value of 28°C.
Rainfall amount
In December, there is an average of 235 mm of precipitation, spread over 22 days. The wind speed is around 5 Bft, mostly coming from the East.
Daily weather in December for Guam
Click on any day in December to get detailed info about the usual weather on that day in Guam. Check out the historical temperatures and precipitation over the past 10 years on this day.
December weather comparison
| Guam | New York | |
|---|---|---|
| Average temperature | 31°C | 9°C |
| Max. temperature | 31°C | 12°C |
| Min. temperature | 25°C | -5°C |
| Total precipitation | 235 mm | 133 mm |
| Rainy days | 22 days | 17 days |
Start of December
The month of December starts in Guam with hot temps, averaging around 31°C during the day and nights around 27°C.
Mid December
By mid-December, daytime temps stay steady at around 31°C, with nights around 27°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of December
By the end of December, the average daytime temperature in Guam is around 31°C, while nighttime temps are about 26°C. There’s a significant chance of many days with precipitation.
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UV index
The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Check out the climate of Guam for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in December in Guam. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in December in Guam
Temperature in December in Guam over the years
Precipitation charts
These charts show the average amount of precipitation in December in Guam. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in December in Guam
Total precipitation in December in Guam over the years
Daily UV index in December in Guam
This chart shows the average daily UV index in December in Guam, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in December in Guam
The weather in December in Guam is rated 4 out of 5 stars by 1 visitor. Have you been to Guam? Share your weather experience to help other visitors.
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A wonderful combination of sunshine and some rain with temperatures around 28 degrees Celsius. Ideal for anyone who loves a warm Christmas. One small downside, it gets dark quite early.— This text is automatically translated to English
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Average weather in Guam by month
Click on a month below to see detailed weather info for Guam. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.