January Weather in Monte Grande, Puerto Rico

Last updated: August 31, 2025

In January, the average temperature in Monte Grande, Puerto Rico hovers around 25°C (77°F), making it a pleasant time to explore. Nighttime temperatures can dip to a comfortable 19°C (67°F), while daytime highs reach up to a balmy 29°C (84°F). Expect a bit of rain, with 18 mm (0.7 in) of precipitation spread over about 4 days, and a humidity level of 76% to round out the climate.

January Temperature in Monte Grande

In January in Monte Grande, the average temperature is 25°C (77°F), with maximums reaching 29°C (84°F) and minimums as low as 19°C (67°F). This pleasant climate makes it a great time to explore the outdoors and enjoy various activities.

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

The chart illustrates January temperature patterns in Monte Grande, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Monte 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 19°C (67°F).

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

January Precipitation in Monte Grande

In Monte Grande in January, the total precipitation amount is 18 mm (0.7 in) spread over a duration of 4 days.

January Precipitation Trends in Monte Grande

The chart displays monthly precipitation patterns in Monte 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 Monte Grande, January typically receives around 18 mm (0.7 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 Monte Grande

In Monte 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 Monte Grande

This chart illustrates the average monthly humidity levels in Monte 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 Monte 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 Monte Grande

In Monte 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 Monte Grande.

Maximum UV Index Levels in Monte Grande for January

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

Data source: Monte 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 Monte Grande Compares to Other Months

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

This table compares monthly weather conditions in Monte 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)	18 mm (0.7 inches)	76%	very high
February Weather	25°C (77°F)	26 mm (1.0 inches)	75%	extreme
March Weather	24°C (76°F)	49 mm (1.9 inches)	75%	extreme
April Weather	25°C (77°F)	49 mm (1.9 inches)	76%	extreme
May Weather	26°C (79°F)	59 mm (2.3 inches)	76%	extreme
June Weather	27°C (80°F)	53 mm (2.1 inches)	78%	extreme
July Weather	27°C (81°F)	86 mm (3.4 inches)	81%	extreme
August Weather	27°C (81°F)	96 mm (3.8 inches)	80%	extreme
September Weather	27°C (81°F)	159 mm (6.2 inches)	79%	extreme
October Weather	27°C (80°F)	102 mm (4.0 inches)	78%	extreme
November Weather	26°C (79°F)	91 mm (3.6 inches)	78%	very high
December Weather	26°C (78°F)	25 mm (1.0 inches)	77%	very high