The highest day temperature in January 2026 was 96°F. The lowest night temperature was 71°F. The average values for day and night temperatures during January were 92.0°F и 76.7°F respectivly.

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

Precipitation total in January for Sullana is 0.1 in.

The average wind speed in January is 8.5 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 Sullana in January is 6.8 hours.