The weather in January in Guam
It's hot in January in Guam with an average temperature of 30°C. Temperatures this month range from a low of 29°C to a high of 31°C. At night, you can expect temperatures between 24°C and 26°C.
Looking for sun? January 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 January 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 2018, Guam reached the highest temperature in January over the past 10 years. The lowest daytime temperature in this month was 26°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of 11°C to a highest value of 27°C.
Rainfall amount
In January, there is an average of 252 mm of precipitation, spread over 23 days. The wind speed is around 5 Bft, mostly coming from the East.
Daily weather in January for Guam
Click on any day in January 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.
January weather comparison
| Guam | New York | |
|---|---|---|
| Average temperature | 30°C | 5°C |
| Max. temperature | 31°C | 11°C |
| Min. temperature | 24°C | -5°C |
| Total precipitation | 252 mm | 97 mm |
| Rainy days | 23 days | 12 days |
Start of January
The month of January starts in Guam with hot temps, averaging around 31°C during the day and nights around 25°C.
Mid January
By mid-January, daytime temps drop to around 30°C, with nights around 26°C. There’s a high chance of precipitation during this time.
End of January
By the end of January, the average daytime temperature in Guam is around 30°C, while nighttime temps are about 26°C. There’s a significant chance of many days with precipitation.
Find affordable vacations to Guam
UV index
The UV index is a maximum of 5 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 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 January in Guam. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in January in Guam
Temperature in January in Guam over the years
Precipitation charts
These charts show the average amount of precipitation in January 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 January in Guam
Total precipitation in January in Guam over the years
Daily UV index in January in Guam
This chart shows the average daily UV index in January 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 January in Guam
The weather in January 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.
Write your own review
The evenings cooled off pleasantly and provided a good night's sleep. There were occasional tropical showers, but they were brief and refreshing.— This text is automatically translated to English
Have you been to Guam in January?
Share your weather experience in January in Guam.
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.