Miami Weather in January
United States · Tropical climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
January in Miami sees average temperatures ranging from a low of 17.3°C (63.1°F) to a high of 24.3°C (75.7°F), with a mean of 20.7°C (69.3°F). Compared to the annual average of 24.9°C (76.8°F), this month is 4.2°C cooler than the yearly norm. This is the coldest month of the year, with average lows of 17.3°C (63.1°F). Precipitation averages 56.0mm, making it approximately 83.0mm drier than the monthly average of 139.0mm. This is the driest month of the year, with just 56.0mm of precipitation. The city receives an average of 9.4 hours of sunshine per day during January, with relative humidity averaging 73.2%. Wind speeds reach an average maximum of 21.7 km/h. For travelers, this month offers a coldest month of the year experience in Miami, with drier-than-average conditions compared to the rest of the year.
Miami's data reveals a city that lives between two climate extremes: gorgeous winters and punishing summers. January averages 20°C with 50mm of rain — practically perfect. August averages 29°C with 200mm and 80% humidity. I tracked hurricane season data and September stands out: highest rain (240mm), highest storm risk. The numbers say December-April is the optimal window: 22-25°C, low rain, manageable UV. May-June is statistically underrated — 27°C before peak humidity. July-August is for AC-to-AC dashes. The water stays bathtub-warm 8 months a year, which the data confirms.
January vs Adjacent Months
| Metric | December | January | February |
|---|---|---|---|
| Mean Temp | 21.6°C (70.9°F) | 20.7°C (69.3°F) | 21.9°C (71.4°F) |
| Rainfall | 118.0mm | 56.0mm | 86.5mm |
| Sunshine | 8.7 hrs | 9.4 hrs | 10.1 hrs |
| Humidity | 73.7% | 73.2% | 74.3% |
| Wind | 20.5 km/h | 21.7 km/h | 22.5 km/h |
| Rainy Days | 17.4 | 16.0 | 16.8 |
Seasonal Context
January falls in Winter in the Northern Hemisphere. Winter is the coolest season with the shortest daylight hours. For travelers visiting Miami in January, the data indicates favorable conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Miami in January?
The average temperature in Miami during January ranges from 17.3°C (63.1°F) to 24.3°C (75.7°F), with a mean of 20.7°C (69.3°F).
How much does it rain in Miami in January?
Miami receives an average of 56.0mm of precipitation in January, spread across approximately 16.0 rainy days. This is the driest month of the year.
What should I pack for Miami in January?
Based on January weather data, pack layers including light jackets and t-shirts, plus an umbrella.
Is January a good time to visit Miami?
January is a good time to visit Miami, with comfortable temperatures and manageable rainfall. However, it is the coldest month — pack warm clothing.
Other Months for Miami
Cities with Similar January Climate (Tropical)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 25.76°, -80.19°. Timezone: America/New_York. Last updated: 2026-07-30.