December Weather in Alao, American Samoa

Last updated: August 22, 2025

In Alao, American Samoa, the average temperature in December hovers around 27°C (81°F). Expect temperatures to range from a minimum of 24°C (76°F) to a maximum of 29°C (84°F). However, be prepared for ample precipitation, with an average of 350 mm (13.8 in) over 29 days. With an average humidity of 82%, the air can feel quite dense, making it essential to stay hydrated and comfortable during your stay!

December Temperature in Alao

In December in Alao, the average temperature is 27°C (81°F). The maximum can reach 29°C (84°F), and the minimum can be as low as 24°C (76°F). This pleasant climate makes Alao an ideal destination for travelers seeking warmth and comfort during their stay.

December Weather in Alao: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Alao, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alao, December typically has an average temperature of 27°C (81°F), with highs reaching up to 29°C (84°F) and lows dropping to around 24°C (76°F).

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

December Precipitation in Alao

In Alao in December, the total precipitation amount reaches 350 mm (13.8 in) over the course of 29 days.

December Precipitation Trends in Alao

The chart displays monthly precipitation patterns in Alao, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Alao, December typically receives around 350 mm (13.8 inches) of precipitation spread over approximately 29 days.

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

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Millimeters (mm) Inches (in)

December Humidity in Alao

In Alao in December humidity is 82%. With an average temperature of 27°C (81°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel more exhausting, and leaving you longing for the relief of air-conditioned spaces during your travels.

December Average Humidity in Alao

This chart illustrates the average monthly humidity levels in Alao, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Alao is approximately 82%, offering insight into how humid the weather typically is during this month.

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

December UV Index in Alao

In Alao in December, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Alao.

Maximum UV Index Levels in Alao for December

The chart shows the monthly maximum UV Index (UVI) for Alao in December, 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 December, the maximum UV index in Alao typically reaches 15, which falls under the extreme exposure category.

Data source: Alao December 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 December Weather in Alao Compares to Other Months

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

This table compares monthly weather conditions in Alao, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (81°F)	297 mm (11.7 inches)	79%	extreme
February Weather	27°C (81°F)	481 mm (18.9 inches)	80%	extreme
March Weather	27°C (82°F)	190 mm (7.5 inches)	79%	extreme
April Weather	27°C (82°F)	234 mm (9.2 inches)	79%	extreme
May Weather	27°C (81°F)	210 mm (8.3 inches)	80%	extreme
June Weather	27°C (81°F)	174 mm (6.9 inches)	80%	very high
July Weather	27°C (80°F)	156 mm (6.2 inches)	81%	very high
August Weather	27°C (80°F)	128 mm (5.1 inches)	83%	extreme
September Weather	27°C (80°F)	144 mm (5.7 inches)	84%	extreme
October Weather	27°C (80°F)	214 mm (8.4 inches)	85%	extreme
November Weather	27°C (81°F)	269 mm (10.6 inches)	82%	extreme
December Weather	27°C (81°F)	350 mm (13.8 inches)	82%	extreme