The highest day temperature in January 2025 was 76°F. The lowest night temperature was 57°F. The average values for day and night temperatures during January were 67.9°F и 67.0°F respectivly.

The average sea surface temperature in January 2025 for Islamorada was 73.7°F. The maximum and minimum values were 69.2°F and 78.6°F respectively.

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

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

The average wind speed in January is 12.2 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 Islamorada in January is 5.9 hours.