January weather forecast
South Beach, FL

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Weather in January

January, like December, is an agreeable winter month in South Beach, Florida, with an average temperature fluctuating between 59.5°F (15.3°C) and 70.2°F (21.2°C).

Temperature

With average high and low temperatures of 70.2°F (21.2°C) and 59.5°F (15.3°C) respectively, January is South Beach's coldest month.

Humidity

In South Beach, the average relative humidity in January is 74%.

Rainfall

In January, in South Beach, the rain falls for 7.8 days. Throughout January, 0.51" (13mm) of precipitation is accumulated. In South Beach, during the entire year, the rain falls for 153.2 days and collects up to 13.15" (334mm) of precipitation.

Ocean temperature

January and February, with an average ocean temperature of 72.3°F (22.4°C), are months with the coldest seawater.
Note: If cold is not your friend, swimming at 72.3°F (22.4°C) might be daunting. But the right mix of sunshine, wind, and external temperature can make a difference. Although wetsuits are not essential, they can enhance the swimming experience.

Daylight

In January, the average length of the day is 10h and 38min.
On the first day of the month, sunrise is at 7:11 am and sunset at 5:37 pm. On the last day of January, in South Beach, Florida, sunrise is at 7:08 am and sunset at 6:01 pm EST.

Sunshine

With an average of 6h of sunshine, January has the least sunshine of the year in South Beach, Florida.

UV index

January, February and December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index, 5 in January, converts into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Warning! Sand and water reflections boost the intensity of UV exposure.
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Frequently asked questions

What are the coldest months in South Beach?

South Beach's January weather, with an average high temperature of 70.2°F (21.2°C) and an average low temperature of 59.5°F (15.3°C), tends to be the coldest of the year.

What are January temperatures in South Beach?

The high-temperature, in January, in South Beach, records 70.2°F (21.2°C), while the low-temperature is 59.5°F (15.3°C).

What is the average humidity in January in South Beach?

In South Beach, the average relative humidity in January is 74%.

How much does it rain in South Beach in January?

In South Beach, in January, during 7.8 rainfall days, 0.51" (13mm) of precipitation is typically accumulated.

When is the ocean coldest in South Beach?

January and February, with an average ocean temperature of 72.3°F (22.4°C), are months with the coldest seawater in South Beach, Florida.

What is the ocean temperature in January in South Beach?

In January, the average ocean temperature is 72.3°F (22.4°C). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 72.3°F (22.4°C) water.

What is the average length of the day in January in South Beach?

In South Beach, Florida, the average day length in January is 10h and 38min.

When are sunrise and sunset in January in South Beach?

On the first day of January in South Beach, Florida, sunrise is at 7:11 am and sunset at 5:37 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:01 pm EST.

What is the month with the least sunshine in South Beach?

January has the least sunshine of the year, with an average of 6h of sunshine.

How many hours of sunshine does South Beach have in January?

In January, the average sunshine duration in South Beach, Florida, is 6h.

What is the month with the lowest UV index in South Beach?

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

What is the UV index intensity in January in South Beach?

The average daily maximum UV index in January in South Beach, Florida, is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.

Average temperature in January
South Beach, FL

Average temperature in January - South Beach, FL
  • Average high temperature in January: 70.2°F

The warmest month (with the highest average high temperature) is August (87.4°F).
The month with the lowest average high temperature is January (70.2°F).

  • Average low temperature in January: 59.5°F

The month with the highest average low temperature is August (78.6°F).
The coldest month (with the lowest average low temperature) is January (59.5°F).

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Average pressure in January
South Beach, FL

Average pressure in January - South Beach, FL
  • Average pressure in January: 30.12"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).

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Average wind speed in January
South Beach, FL

Average wind speed in January - South Beach, FL
  • Average wind speed in January: 9.9mph

The windiest months (with the highest average wind speed) are January and November (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).

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Average humidity in January
South Beach, FL

Average humidity in January - South Beach, FL
  • Average humidity in January: 74%

The months with the highest relative humidity are June, July and August (79%).
The month with the lowest relative humidity is March (72%).

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Average rainfall in January
South Beach, FL

Average rainfall in January - South Beach, FL
  • Average rainfall in January: 0.51"

The wettest month (with the highest rainfall) is August (2.48").
The driest month (with the least rainfall) is February (0.39").

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Average rainfall days in January
South Beach, FL

Average rainfall days in January - South Beach, FL
  • Average rainfall days in January: 7.8 days

The month with the highest number of rainy days is August (20.2 days).
The month with the least rainy days is February (7.7 days).

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Average sea temperature in January
South Beach, FL

Average sea temperature in January - South Beach, FL
  • Average sea temperature in January: 72.3°F

The best month for swimming (with the highest average sea temperature) is August (84.8°F).
The coldest months (with the lowest average sea temperature) are January and February (72.3°F).

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Average daylight in January /
Average sunshine in January
South Beach, FL

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

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

  • Average sunshine in January: 6h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).

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Average sunshine days in January
South Beach, FL

Average sunshine days in January - South Beach, FL
  • Average sunshine days in January: 18.8 days

The month with the most sunshine days is March (19.5 days).
The month with the least sunshine days is August (5.1 days).

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Average UV index in January
South Beach, FL

Average UV index in January - South Beach, FL
  • Average UV index in January: 5

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

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Average cloud cover in January
South Beach, FL

Average cloud cover in January - South Beach, FL
  • Average cloud cover in January: 35

The month with the most cloud cover is November (Cloud cover 36).
The months with the least cloud cover are May and August (Cloud cover 27).

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Average visibility in January
South Beach, FL

Average visibility in January - South Beach, 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).

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South Beach, Florida, USA

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