August weather forecast
Svalbard and Jan Mayen

August in Svalbard and Jan Mayen signifies the onset of the brief Arctic autumn. Temperatures begin to descend from their summer peak, and daylight hours start to decrease, albeit remaining lengthy due to the receding Midnight Sun.

In Svalbard, August's average temperatures range between 3°C and 7°C. The capital, Longyearbyen, experiences these cooling conditions, which signal the onset of the territory's transition from summer to winter. The vibrant wildlife activity of the summer months begins to slow, with migratory birds preparing to leave and marine animals retreating with the advancing sea ice.

In Jan Mayen, August brings average temperatures of about 4°C to 6°C. The Midnight Sun begins to wane, reducing daylight hours, yet the days remain long. The Norwegian military base on the island, along with the surrounding landscape, experiences similar weather conditions, which inform the rhythms of daily life and ongoing research activities.

Precipitation in both Svalbard and Jan Mayen during August remains moderate. It typically falls as rain, although as temperatures begin to drop towards the end of the month, snow becomes increasingly common.

Compared to July, August brings slightly cooler temperatures and a reduction in daylight hours. As the territories move into September, this trend accelerates, with temperatures continuing to fall and daylight hours decreasing significantly, marking the imminent return of the Polar Night period. Despite these changes, visitors should remain prepared for changeable conditions and the potential for sudden cold weather.

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• Longyearbyen - August »
  The month with the most rainfall is August, when the rain falls for 18 days and typically aggregates up to 30mm of precipitation. The month with the most rainfall in Longyearbyen is August, when the rain falls for 18 days and typically aggregates up to 30mm of precipitation.
• Barentsburg - August »
  August is the most humid month in Barentsburg with an average relative humidity of 82%. In Barentsburg, in August, during 16 rainfall days, 35mm of precipitation is typically accumulated.
• Olonkin City - August »
  The month with the longest days in Olonkin City is August, with an average of 18h and 42min of daylight. The month with the warmest seawater in Olonkin City, Svalbard and Jan Mayen, is August, with an average sea temperature of 7°C.