June weather forecast
Longyearbyen, Svalbard and Jan Mayen

June in Longyearbyen signifies the firm establishment of summer with the temperature high reaching a pleasant 7°C (44.6°F). The town relishes a full 24 hours of daylight, bright enough to cast shadows even at midnight. It is a time for migratory birds to flock back, adding sound and life to the silent, stark tundra. However, marks a notable increase from previous months in rainfall for 18 days. The ever-present sunshine combined with the pervasive sound of dripping water paints an exceptional portrait of June weather.

Temperature

The shift from May to June in Longyearbyen brings an increase in the average high-temperature, moving from a freezing cold -3°C (26.6°F) to an icy 3°C (37.4°F). Longyearbyen sees a minor drop to an average minimum temperature of -1°C (30.2°F) during the night in the month of June.

Rainfall

In Longyearbyen, Svalbard and Jan Mayen, in June, it is raining for 13 days, with typically 18mm (0.71") of accumulated precipitation. Throughout the year, there are 86 rainfall days, and 271mm (10.67") of precipitation is accumulated.

Snowfall

January through December are months with snowfall in Longyearbyen. In June, snow falls for 7 days. In Longyearbyen, during the entire year, snow falls for 176 days.

Sea temperature

In June, the average sea temperature is 3°C (37.4°F).
Note: When swimming, this is deemed life-endangering and extremely risky. The painful cold water instigates fast-paced hyperventilation. Wearing a specialized swimsuit is necessary to lessen thermal harm.

Daylight

January, May through July, November and December, with an average of 0h and 0min of daylight, are months with the shortest days.

Sunshine

In Longyearbyen, the average sunshine in June is 5.5h.

UV index

May through July, with an average maximum UV index of 2, are months with the highest UV index in Longyearbyen. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: In June, the maximum UV index of 2 suggests these recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.