January Weather in Rio Grande, Puerto Rico

Last updated: August 31, 2025

In Rio Grande, Puerto Rico, the average temperature in January hovers around 25°C (77°F), with a comfortable range between a minimum of 22°C (71°F) and a maximum of 29°C (84°F). Expect some precipitation, averaging 49 mm (1.9 in) over 15 days, contributing to an average humidity level of 76%. Perfect for those who enjoy a warm and slightly moist climate!

January Temperature in Rio Grande

In January in Rio Grande, the average temperature is 25°C (77°F). The maximum can reach 29°C (84°F), while the minimum can dip as low as 22°C (71°F). This comfortable climate makes Rio Grande an ideal destination for travelers looking to enjoy pleasant weather and outdoor activities.

January Weather in Rio Grande: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Rio Grande, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Grande, January typically has an average temperature of 25°C (77°F), with highs reaching up to 29°C (84°F) and lows dropping to around 22°C (71°F).

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

January Precipitation in Rio Grande

In Rio Grande in January, the precipitation amount is 49 mm (1.9 in) over the course of 15 days.

January Precipitation Trends in Rio Grande

The chart displays monthly precipitation patterns in Rio Grande, 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 Rio Grande, January typically receives around 49 mm (1.9 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 Rio Grande

In Rio Grande in January, humidity is 76%. With an average temperature of 25°C (77°F), this humidity feels like a warm, heavy blanket wrapping around you, making traveling feel muggy and requiring frequent breaks to stay refreshed.

January Average Humidity in Rio Grande

This chart illustrates the average monthly humidity levels in Rio Grande, 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 Rio Grande 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 Rio Grande

In Rio Grande 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 Rio Grande.

Maximum UV Index Levels in Rio Grande for January

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

Data source: Rio Grande 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 Rio Grande Compares to Other Months

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

This table compares monthly weather conditions in Rio Grande, 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 (77°F)	49 mm (1.9 inches)	76%	very high
February Weather	25°C (77°F)	52 mm (2.1 inches)	75%	extreme
March Weather	25°C (77°F)	63 mm (2.5 inches)	74%	extreme
April Weather	26°C (78°F)	55 mm (2.2 inches)	75%	extreme
May Weather	26°C (80°F)	74 mm (2.9 inches)	75%	extreme
June Weather	27°C (81°F)	69 mm (2.7 inches)	77%	extreme
July Weather	28°C (82°F)	110 mm (4.3 inches)	80%	extreme
August Weather	28°C (82°F)	111 mm (4.4 inches)	80%	extreme
September Weather	28°C (82°F)	154 mm (6.0 inches)	79%	extreme
October Weather	27°C (82°F)	140 mm (5.5 inches)	78%	extreme
November Weather	27°C (80°F)	112 mm (4.4 inches)	78%	very high
December Weather	26°C (79°F)	68 mm (2.7 inches)	76%	very high