October weather forecast
Upernavik, Greenland

October brings a significant shift, as Upernavik transitions back into its customary lesser temperatures. The city's weather spells the definite arrival of winter, as the mercury drops considerably from September to October. The rainfall continues to dominate, coupled with decreasing sunlight and shorter days. However, a colorful range of fall foliage provides visual warmth against the dipping temperatures. Concurrently, the temperature of the sea sees a significant dip, falling to 1.3°C (34.3°F), summoning the seals and walruses back to Upernavik's waters.

Temperature

A decrease in the average high-temperature is observed during October, shifting from a cold 3°C (37.4°F) in September to a subzero cold -2.1°C (28.2°F). Upernavik in October observes a slight diminution in temperature from daily highs, recording a low-temperature average of -5.8°C (21.6°F).

Rainfall

In October, in Upernavik, the rain falls for 12 days. Throughout October, 33mm (1.3") of precipitation is accumulated. Throughout the year, there are 113 rainfall days, and 251mm (9.88") of precipitation is accumulated.

Sea temperature

In Upernavik, Greenland, the average seawater temperature in October is 1.3°C (34.3°F).
Note: In swimming undertakings, this is deemed life-threatening and highly risky. The cold water induces intense discomfort and leads to swift hyperventilation. A specialized swimsuit is indispensable to decrease thermal injuries.

Daylight

In Upernavik, the average length of the day in October is 8h and 16min.
On the first day of October in Upernavik, sunrise is at 09:08 and sunset at 19:59 -01. On the last day of the month, sunrise is at 10:52 and sunset at 16:04 -02.
Note: On Sunday, 27. October 2024, at 00:00, Daylight Saving Time ends, and the time zone changes from -01 to -02. Daylight Saving Time starts again on Saturday, 29. March 2025, at 23:00; consequently, the time zone reverts from -02 to -01.

Sunshine

The average sunshine in October is 2h.

UV index

The months with the lowest UV index in Upernavik are January through March, October through December, with an average maximum UV index of 0. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 0 during October leads to these instructions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.