January Weather in Agana Heights Village, Guam

Last updated: August 23, 2025

In January, the average temperature in Agana Heights Village, Guam is a pleasant 27°C (81°F). Expect minimum temperatures around 25°C (77°F) and a maximum of 28°C (83°F). The region experiences about 61 mm (2.4 in) of precipitation spread across 15 days, contributing to an average humidity of 83%. Enjoy the warm and slightly humid climate as you explore!

January Temperature in Agana Heights Village

In January in Agana Heights Village, the average temperature is 27°C (81°F). Maximums can reach 28°C (83°F) and minimums can be as low as 25°C (77°F). This pleasant climate makes it an ideal time to explore the outdoors and enjoy various activities in Agana Heights Village.

January Weather in Agana Heights Village: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Agana Heights Village, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Agana Heights Village, January typically has an average temperature of 27°C (81°F), with highs reaching up to 28°C (83°F) and lows dropping to around 25°C (77°F).

Data source: Temperature data for Agana Heights Village generated using information from the Copernicus Climate Change Service.

January Precipitation in Agana Heights Village

In Agana Heights Village in January, the precipitation amount is 61 mm (2.4 in) over the course of 15 days.

January Precipitation Trends in Agana Heights Village

The chart displays monthly precipitation patterns in Agana Heights Village, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Agana Heights Village, January typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 15 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Agana Heights Village

In Agana Heights Village in January humidity is 83%. With an average temperature of 27°C (81°F), this humidity feels like a warm blanket enveloping you, making sightseeing and outdoor activities feel more exhausting and requiring frequent breaks to relax in the shade or cool off.

January Average Humidity in Agana Heights Village

This chart illustrates the average monthly humidity levels in Agana Heights Village, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Agana Heights Village is approximately 83%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Agana Heights Village

In Agana Heights Village in January, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Agana Heights Village.

Maximum UV Index Levels in Agana Heights Village for January

The chart shows the monthly maximum UV Index (UVI) for Agana Heights Village in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Agana Heights Village typically reaches 11, which falls under the extreme exposure category.

Data source: Agana Heights Village January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How January Weather in Agana Heights Village Compares to Other Months

Weather in Agana Heights Village varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Agana Heights Village, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Agana Heights Village, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (81°F)	61 mm (2.4 inches)	83%	extreme
February Weather	27°C (80°F)	77 mm (3.0 inches)	82%	extreme
March Weather	27°C (81°F)	53 mm (2.1 inches)	84%	extreme
April Weather	27°C (81°F)	94 mm (3.7 inches)	84%	extreme
May Weather	28°C (82°F)	78 mm (3.1 inches)	83%	extreme
June Weather	28°C (82°F)	159 mm (6.3 inches)	80%	extreme
July Weather	28°C (82°F)	276 mm (10.9 inches)	80%	extreme
August Weather	28°C (82°F)	405 mm (16.0 inches)	80%	extreme
September Weather	28°C (82°F)	375 mm (14.8 inches)	81%	extreme
October Weather	28°C (82°F)	356 mm (14.0 inches)	80%	extreme
November Weather	28°C (82°F)	202 mm (8.0 inches)	81%	extreme
December Weather	27°C (82°F)	105 mm (4.1 inches)	84%	extreme