August weather forecast
Longyearbyen, Svalbard and Jan Mayen

The weather in August sees a subtle fall in the high temperature to 6°C (42.8°F) from 7°C (44.6°F) in July. Farewell to the brief Arctic summer begins as daylight shortens to 23.2 hours. While the overall climate remains largely clear with a visible decrease in rainfall and snowfall days, sunsets cast a beautiful warm glow over the landscape. It signals the close of the summer season and heralds the onset of colder months ahead. The transition reflected in August's weather paints a mesmerizing picture of shifting seasons.

Temperature

The start of August sees the average high-temperature at a still frosty 6°C (42.8°F), showing little difference from July's 7°C (44.6°F). A modest dip in temperatures to an average of 2°C (35.6°F) is observed throughout Longyearbyen's August nights.

Rainfall

The month with the most rainfall in Longyearbyen is August, when the rain falls for 18 days and typically aggregates up to 30mm (1.18") of precipitation.

Snowfall

Months with snowfall in Longyearbyen are January through December. In Longyearbyen, during August, snow falls for 2 days. In Longyearbyen, Svalbard and Jan Mayen, during the entire year, snow falls for 176 days.

Sea temperature

The month with the warmest seawater is August, with an average sea temperature of 6°C (42.8°F).
Note: Navigating the 6°C (42.8°F) at 13°C (55.4°F) is no joy, and temperatures less than 10°C (50°F) can threaten breathing and cause a chilling shock, gauging personal stamina.

Daylight

In Longyearbyen, the average length of the day in August is 4h and 38min.
On the first day of the month, sunrise is at 02:00 and sunset at 02:00. On the last day of August, in Longyearbyen, Svalbard and Jan Mayen, sunrise is at 03:33 and sunset at 22:22 CEST.

Sunshine

In Longyearbyen, Svalbard and Jan Mayen, the average sunshine in August is 4.3h.

UV index

The average daily maximum UV index in August in Longyearbyen is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: A typical high UV index of 1 in August suggests the following recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. To cut down UV radiation exposure by about half, sport a wide-brim hat. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.