The highest day temperature in January 2025 was 64°F. The lowest night temperature was 45°F. The average values for day and night temperatures during January were 58.3°F и 54.8°F respectivly.

The average sea surface temperature in January 2025 for Poros was 62.0°F. The maximum and minimum values were 61.4°F and 63.2°F respectively.

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

Precipitation total in January for Poros is 1.3 in. It makes january one of the most rainy months of the year.

The average wind speed in January is 9.0 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 Poros in January is 6.7 hours.