January weather forecastMiami Beach, FL

January
Weather in January
January ushers in the year in Miami Beach, with cooler air from the previous month still lingering. The weather is characterized by relative humidity of 73% and gentle ongoing gusts reaching up to 16.3mph (26.2km/h). The city experiences quite a sunny month as daylight stretches up to 10.7 hours per day. It has an average UV index of 5 indicating a moderate exposure level. Given its tropical monsoon climate, a few days in the month will see some rainfall.Temperature
Miami Beach notes the coldest temperatures in January, with a high average of 73°F (22.8°C) and a low of 65.1°F (18.4°C).Humidity
In Miami Beach, Florida, 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
January through March, with an average ocean temperature of 75.2°F (24°C), are months with the coldest seawater in Miami Beach, Florida.Note: When thinking about a swim in 75.2°F (24°C) waters, consider your cold tolerance, the day's sunshine, wind, and air temperature. It is a fun fact that Olympic swimmers dive into waters of 77°F (25°C) to 82.4°F (28°C).
Daylight
The average length of the day in January in Miami Beach is 10h and 44min.On the first day of January, sunrise is at 7:07 am and sunset at 5:40 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:03 pm EST.
Sunshine
The average sunshine in January is 6.5h.UV index
January and December, with an average maximum UV index of 5, are months with the lowest UV index in Miami Beach. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In January, the maximum UV index of 5 suggests these recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Miami Beach, 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 Beach, 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 Beach, 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 Beach, 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 Beach, 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 Beach, 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 Beach, FL
- Average sea temperature in January: 75°F
The best month for swimming (with the highest average sea temperature) is August (86°F).
The coldest months (with the lowest average sea temperature) are January, February and March (75°F).
Average daylight in January /
Average sunshine in January
Miami Beach, FL
- Average daylight in January: 10h and 42min
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 30min
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 Beach, 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 Beach, 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 Beach, 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 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).





