The highest day temperature in January 2026 was 56°F. The lowest night temperature was 30°F. The average values for day and night temperatures during January were 45.1°F и 39.5°F respectivly.

The average sea surface temperature in January 2026 for Tortoli was 61.2°F. The maximum and minimum values were 59.4°F and 63.0°F respectively.

Most of the days in January are gloomy but you can also expect sunny days.

Precipitation total in January for Tortoli is 2.5 in.

The average wind speed in January is 7.6 mph. This value is relatively stable throughout the year.

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 Tortoli in January is 4.9 hours.