January Weather in Miami, United States

Last updated: June 24, 2025

In January, the average temperature in Miami, United States hovers around 7°C (45°F), with extremes that can dip to a chilly -13°C (8°F) or rise to a pleasant 21°C (70°F). Expect 56 mm (2.2 in) of precipitation over 6 days, paired with an average humidity of 76%, creating a humid yet invigorating atmosphere.

January Temperature in Miami

In January in Miami, the average temperature is 7°C (45°F). Maximum temperatures can reach 21°C (70°F), while the minimum can drop as low as -13°C (8°F). Be prepared for a wide range of temperatures, making it essential to pack layers for your travels.

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

The chart illustrates January temperature patterns in Miami, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Miami, January typically has an average temperature of 7°C (45°F), with highs reaching up to 21°C (70°F) and lows dropping to around -13°C (8°F).

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

January Precipitation in Miami

In Miami in January, the precipitation amount is 56 mm (2.2 in) spread over 6 days.

January Precipitation Trends in Miami

The chart displays monthly precipitation patterns in Miami, 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 Miami, January typically receives around 56 mm (2.2 inches) of precipitation spread over approximately 6 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 Miami

In Miami in January, humidity is 76%. With an average temperature of 7°C (45°F), this humidity feels like a chilly embrace that can make even short walks feel damp and uncomfortable, requiring travelers to dress in layers and prepare for sudden changes in weather.

January Average Humidity in Miami

This chart illustrates the average monthly humidity levels in Miami, 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 Miami 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 Miami

In Miami in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Miami for better planning.

Maximum UV Index Levels in Miami for January

The chart shows the monthly maximum UV Index (UVI) for Miami 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 Miami typically reaches 4, which falls under the moderate exposure category.

Data source: Miami 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 Miami Compares to Other Months

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

This table compares monthly weather conditions in Miami, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	56 mm (2.2 inches)	76%	moderate
February Weather	8°C (48°F)	60 mm (2.4 inches)	79%	high
March Weather	12°C (54°F)	44 mm (1.7 inches)	67%	very high
April Weather	18°C (64°F)	4 mm (0.2 inches)	55%	extreme
May Weather	22°C (71°F)	10 mm (0.4 inches)	40%	extreme
June Weather	28°C (83°F)	5 mm (0.2 inches)	33%	extreme
July Weather	28°C (83°F)	76 mm (3.0 inches)	34%	extreme
August Weather	28°C (82°F)	47 mm (1.8 inches)	48%	extreme
September Weather	25°C (77°F)	44 mm (1.7 inches)	64%	very high
October Weather	18°C (65°F)	37 mm (1.4 inches)	67%	very high
November Weather	13°C (56°F)	27 mm (1.1 inches)	77%	high
December Weather	8°C (46°F)	42 mm (1.6 inches)	82%	moderate