The average yearly temperature in Norddeich is around 9°C. July and August are the hottest months of the year with highs up to 21°C. In summer the water temperature of the East Frisian North Sea is about 11°C. In winter the coldest months are January and February with lows down to -2°C. Average yearly precipitation is 611 mm. Norddeich sees the most rain in autumn and winter, while February is the driest month of the year.