January weather forecast
Miami, FL

Share
The stunning layout of the Miami Coast in Florida, USA
The stunning layout of the Miami Coast in Florida, USA

Weather in January

The start of the year in Miami, Florida brings a mild and consistent climate. A remarkable trait of this month is the lowest yearly pressure at 30.11 in, dictating stable and predictable weather conditions. Although January is the coldest month of the year, the days are still quite warm with ample exposure to sunlight complemented by fair visibility. Compared to the following month, the environment is drier and the air slightly cooler, but there is a steady uptick in temperature as the days go by. Being the first month of the calendar, January is a gateway to the more tropical-like climate to come.

Temperature

January stands out as Miami's coldest month, with temperatures ranging between an average high of 73°F (22.8°C) and a low of 65.1°F (18.4°C).

Humidity

The average relative humidity in January is 73%.

Rainfall

January is the month with the least rainfall. Rain falls for 9.2 days and accumulates 0.43" (11mm) of precipitation.

Ocean temperature

In Miami, the average seawater temperature in January is 74.1°F (23.4°C).
Note: While a person's sensitivity to cold is personal, factors like sunshine, wind, and the temperature can influence their comfort in 74.1°F (23.4°C) waters. Olympians, for perspective, swim in waters between 77°F (25°C) and 82.4°F (28°C).

Daylight

In January, the average length of the day is 10h and 44min.
On the first day of the month, sunrise is at 7:07 am and sunset at 5:41 pm. On the last day of January, sunrise is at 7:04 am and sunset at 6:03 pm EST.

Sunshine

In Miami, the average sunshine in January is 6.5h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 5 during January morphs into the following directions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be cautious! Sand and water surfaces make the Sun's UV rays more potent.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month in Miami?

January is the month that records the lowest temperatures, with averages ranging from a high of 73°F (22.8°C) to a low of 65.1°F (18.4°C).

What is the average January temperature?

An average high-temperature, in January, in Miami, is 73°F (22.8°C) and the average low-temperature is 65.1°F (18.4°C).

What is the average humidity in January?

In Miami, the average relative humidity in January is 73%.

What is the driest month in Miami?

January is the month with the least rainfall. Rain falls for 9.2 days and accumulates 0.43" (11mm) of precipitation.

How much does it rain in January?

In Miami, during January, the rain falls for 9.2 days and regularly aggregates up to 0.43" (11mm) of precipitation.

What is the water temperature in January?

In Miami, in January, the average water temperature is 74.1°F (23.4°C). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 74.1°F (23.4°C) water.

What is the average length of the day in January?

In Miami, the average day length in January is 10h and 44min.

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 7:07 am and sunset at 5:41 pm. On the last day of the month, in Miami, sunrise is at 7:04 am and sunset at 6:03 pm EST.

How many hours of sunshine does Miami have in January?

In Miami, the average sunshine duration in January is 6.5h.

What is the month with the lowest UV index?

The months with the lowest UV index are January and December, with an average maximum UV index of 5.

How high is the UV index in January?

The average daily maximum UV index in January in Miami is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.

Average temperature in January
Miami, FL

Average temperature in January - Miami, FL
  • Average high temperature in January: 73°F

The warmest month (with the highest average high temperature) is August (87.1°F).
The month with the lowest average high temperature is January (73°F).

  • Average low temperature in January: 65.1°F

The month with the highest average low temperature is August (82.6°F).
The coldest month (with the lowest average low temperature) is January (65.1°F).

Average pressure in January
Miami, FL

Average pressure in January - Miami, FL
  • Average pressure in January: 30.11"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are September and October (29.95"Hg).

Average wind speed in January
Miami, FL

Average wind speed in January - Miami, FL
  • Average wind speed in January: 11.5mph

The windiest month (with the highest average wind speed) is March (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

Average humidity in January
Miami, FL

Average humidity in January - Miami, FL
  • Average humidity in January: 73%

The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is March (70%).

Average rainfall in January
Miami, FL

Average rainfall in January - Miami, FL
  • Average rainfall in January: 0.43"

The wettest month (with the highest rainfall) is August (2.8").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in January
Miami, FL

Average rainfall days in January - Miami, FL
  • Average rainfall days in January: 9.2 days

The month with the highest number of rainy days is September (24.5 days).
The month with the least rainy days is February (8.7 days).

Average sea temperature in January
Miami, FL

Average sea temperature in January - Miami, FL
  • Average sea temperature in January: 74.1°F

The best month for swimming (with the highest average sea temperature) is August (86.5°F).
The coldest month (with the lowest average sea temperature) is February (74°F).

Average daylight in January /
Average sunshine in January
Miami, FL

Average daylight in January / Average sunshine in January - Miami, FL
  • Average daylight in January: 10h and 4min

The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).

  • Average sunshine in January: 6h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

Average sunshine days in January
Miami, FL

Average sunshine days in January - Miami, FL
  • Average sunshine days in January: 16.6 days

The month with the most sunshine days is March (17 days).
The month with the least sunshine days is September (3.2 days).

Average UV index in January
Miami, FL

Average UV index in January - Miami, FL
  • Average UV index in January: 5

The months with the highest UV index are May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January and December (UV index 5).

Average cloud cover in January
Miami, FL

Average cloud cover in January - Miami, FL
  • Average cloud cover in January: 33

The month with the most cloud cover is October (Cloud cover 35).
The month with the least cloud cover is April (Cloud cover 26).

Average visibility in January
Miami, FL

Average visibility in January - Miami, FL
  • Average visibility in January: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Miami, Florida, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location