The highest day temperature in January 2025 was 61°F. The lowest night temperature was 40°F. The average values for day and night temperatures during January were 56.7°F и 50.6°F respectivly.

The average sea surface temperature in January 2025 for Nettuno was 61.4°F. The maximum and minimum values were 59.6°F and 63.2°F respectively.

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

Precipitation total in January for Nettuno is 2.5 in.

The average wind speed in January is 8.6 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 Nettuno in January is 5.6 hours.