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Guam weather in January

Weather in Guam: January

Average day temperature: 84.0°F
Average night temperature: 80.8°F
Sea water temperature: 82.7°F
Number of sunny days: 3 days
Day length: 11.3 - 11.5 hours
Number of rainy days: 5 days
Precipitation totals: 2.8 in.

Air temperature in January, °F

Show year:
2024
2023
2022

The highest day temperature during January of 2024 was 84°F. At the same time the lowest night temperature was 77°F. Day and night temperature averages during January were 81.4°F and 79.1°F.

Sea water temperature in Guam in January, °F

Show year:
2024
2023
2022

The average sea water temperature in January of 2024 was 83.2°F. The highest and lowest sea temperatures during the month were 83.8°F and 82.4°F.

Sunny, partly cloudy and cloudy days

Mostly all days in January are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in January, in.

Precipitation total value in Guam in January is 2.7 in. Other months of the year show relatively similar values.

Wind speed in January, mph

The average wind speed value in January is 16.5 mph It makes January one of the most windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in January is: 4.6.

Best time for vacation in Guam

Sunniest months:
July 6 days
August 5 days
September 5 days
Warmest months:
June 87.9 °F
July 87.8 °F
August 87.4 °F
Warmest sea temp:
August 85.5 °F
September 85.4 °F
July 85.3 °F
Coldest months:
February 83.3 °F
January 84.0 °F
March 84.3 °F
Rainiest months:
October 16 days
August 15 days
September 15 days
Windiest months:
December 17.4 mph
February 17.4 mph
January 16.9 mph

Guam on a weather map

Guam
+84°F
W 16 mph
Feels like: +91°F
Precip.: 0%
Places in Northern Mariana Islands:
Name
°F
+84°F
+82°F
+82°F
+82°F
+82°F
24 Hours Forecast
Guam
Local time: 11:50
April 25, thursday
1200
84°F
W
16 mph
1500
84°F
W
16 mph
1800
82°F
W
14 mph
2100
81°F
W
13 mph
April 26, friday
0000
81°F
W
14 mph
0300
81°F
W
14 mph
0600
81°F
W
14 mph
0900
82°F
W
16 mph
Units of measurement: °C / °F