Miami
Florida, USA
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Miami, FL

January, like December, is an agreeable winter month in Miami, Florida, with average temperature varying between 65.1°F (18.4°C) and 73°F (22.8°C).

Temperature

With an average high-temperature of 73°F (22.8°C) and an average low-temperature of 65.1°F (18.4°C), January is the coldest month.

Humidity

The average relative humidity in January is 73%.

Rainfall

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

Ocean temperature

In Miami, the average water temperature is 74.1°F (23.4°C).
Note: For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 74.1°F (23.4°C).

Daylight

The average length of the day in January is 10.8h.

Sunshine

In Miami, the average sunshine is 6.5h.

UV index

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 health hazard from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the coldest month in Miami?

With an average high-temperature of 73°F (22.8°C) and an average low-temperature of 65.1°F (18.4°C), January is the coldest month in Miami, Florida.

What is the temperature in January in Miami?

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

What is the average humidity in January in Miami?

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

How many days does it rain in January in Miami?

In Miami, Florida, in January, it is raining for 9.2 days, with typically 0.43" (11mm) of accumulated precipitation.

What is the driest month in Miami?

The month with the least rainfall in Miami is January when the rain falls for 9.2 days and typically collects 0.43" (11mm) of precipitation.

What is the water temperature in January in Miami?

In Miami, Florida, the average seawater temperature in January is 74.1°F (23.4°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 74.1°F (23.4°C) water may be enjoyable.

How many hours of daylight does Miami have in January?

In January, the average length of the day in Miami, Florida, is 10.8h.

How many hours of sunshine does Miami have in January?

The average sunshine in January in Miami, Florida, is 6.5h.

When is the lowest UV index in Miami?

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

What is the UV index reading in January in Miami?

In Miami, the average daily maximum UV index in January is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to the UV radiation.
Average temperature in January - Miami, FL
  • Average high temperature in January: 22.8°C

The warmest month (with the highest average high temperature) is August (30.6°C).
The month with the lowest average high temperature is January (22.8°C).

  • Average low temperature in January: 18.4°C

The month with the highest average low temperature is August (28.1°C).
The coldest month (with the lowest average low temperature) is January (18.4°C).

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: 11mm

The wettest month (with the highest rainfall) is August (71mm).
The driest month (with the least rainfall) is January (11mm).

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: 23.4°C

The best month for swimming (with the highest average sea temperature) is August (30.3°C).
The coldest month (with the lowest average sea temperature) is February (23.3°C).

Average daylight in January / Average sunshine in January - Miami, FL
  • Average daylight in January: 10.8h

The month with the longest days is June (Average daylight: 13.7h).
The month with the shortest days is December (Average daylight: 10.5h).

  • Average sunshine in January: 6.5h

The month with the most sunshine is July (Average sunshine: 11.1h).
The month with the least sunshine is December (Average sunshine: 6.4h).

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

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