January Weather in Stella, Puerto Rico

Last updated: August 31, 2025

In Stella, Puerto Rico, the average temperature in January is a pleasant 25°C (78°F). Expect a minimum of 23°C (73°F) and a maximum of 28°C (84°F), providing comfortable conditions for outdoor activities. With a precipitation amount of 16 mm (0.6 in) over 4 days, and an average humidity of 76%, it’s a great time to explore while enjoying the warm atmosphere.

January Temperature in Stella

In January in Stella, the average temperature is 25°C (78°F). Maximums can reach 28°C (84°F) and minimums can be as low as 23°C (73°F). This pleasant climate makes it an ideal time for traveling and exploring the beauty of Stella.

January Weather in Stella: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Stella, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Stella, January typically has an average temperature of 25°C (78°F), with highs reaching up to 28°C (84°F) and lows dropping to around 23°C (73°F).

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

January Precipitation in Stella

In Stella in January, the precipitation amount is 16 mm (0.6 in) over a span of 4 days.

January Precipitation Trends in Stella

The chart displays monthly precipitation patterns in Stella, 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 Stella, January typically receives around 16 mm (0.6 inches) of precipitation spread over approximately 4 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Stella

In Stella in January humidity is 76%. With an average temperature of 25°C (78°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier and the air thick, causing travelers to seek shade and refreshment more often.

January Average Humidity in Stella

This chart illustrates the average monthly humidity levels in Stella, 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 Stella is approximately 76%, 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 Stella

In Stella in January, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Stella.

Maximum UV Index Levels in Stella for January

The chart shows the monthly maximum UV Index (UVI) for Stella 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 Stella typically reaches 9, which falls under the very high exposure category.

Data source: Stella 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 Stella Compares to Other Months

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

This table compares monthly weather conditions in Stella, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (78°F)	16 mm (0.6 inches)	76%	very high
February Weather	25°C (77°F)	21 mm (0.8 inches)	75%	extreme
March Weather	25°C (77°F)	38 mm (1.5 inches)	74%	extreme
April Weather	26°C (78°F)	39 mm (1.5 inches)	75%	extreme
May Weather	26°C (80°F)	49 mm (1.9 inches)	75%	extreme
June Weather	27°C (81°F)	48 mm (1.9 inches)	77%	extreme
July Weather	28°C (82°F)	69 mm (2.7 inches)	80%	extreme
August Weather	28°C (82°F)	64 mm (2.5 inches)	80%	extreme
September Weather	28°C (82°F)	141 mm (5.5 inches)	79%	extreme
October Weather	27°C (81°F)	71 mm (2.8 inches)	78%	extreme
November Weather	27°C (80°F)	66 mm (2.6 inches)	78%	very high
December Weather	26°C (79°F)	19 mm (0.8 inches)	76%	very high