The highest day temperature in January 2026 was 89°F. The lowest night temperature was 39°F. The average values for day and night temperatures during January were 74.8°F и 59.5°F respectivly.

The average sea surface temperature in January 2026 for Port St. Lucie was 72.5°F. The maximum and minimum values were 69.0°F and 75.6°F respectively.

You can expect various weather conditions during January. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in January for Port St. Lucie is 0.3 in. It makes january the least rainy month of the year.

The average wind speed in January is 10.4 mph.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Port St. Lucie in January is 6.2 hours.