The highest day temperature in January 2026 was 43°F. The lowest night temperature was 5°F. The average values for day and night temperatures during January were 31.3°F и 27.4°F respectivly.

The average sea surface temperature in January 2026 for Hamburg was 35.1°F. The maximum and minimum values were 29.0°F and 41.4°F respectively.

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

Precipitation total in January for Hamburg is 2.0 in. It makes january one of the most rainy months of the year.

The average wind speed in January is 10.9 mph. It makes January the most windy month of the year for Hamburg.

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 Hamburg in January is 2.5 hours.