October weather forecast
Uummannaq, Greenland

The drift towards winter intensifies in October as temperatures fall. In Uummannaq daylight hours drop to a scarce 8.8 hours per day, intensifying the town's cold, shadowy atmosphere. A significant increase in sea ice coverage characterizes this month's weather. While the amount of rainfall remains relatively high, a distinct, gradual shift to lower temperatures indicates the incoming winter. October is indeed a month of clear transition, where autumn's colorful displays retreat under the onslaught of winter’s chill.

Temperature

The transition into October subtly indicates a reduction in the average high-temperature, down to a still cold 0°C (32°F) from September's icy 4°C (39.2°F). During the nights of October, Uummannaq records an average temperature of -3°C (26.6°F), a minor drop from daytime peaks.

Rainfall

Throughout October, 18mm (0.71") of precipitation is accumulated. Throughout the year, 198mm (7.8") of rain is accumulated.

Sea temperature

In October, the average sea temperature in Uummannaq is 1.7°C (35.1°F).
Note: Regarding swimming, this is extremely cold, hazardous, and can lead to death. Hypothermia sets in rapidly without the protection of insulating waterproof gear.

Daylight

The average length of the day in October is 8h and 46min.
On the first day of October, sunrise is at 08:48 and sunset at 19:47 -01. On the last day of the month, sunrise is at 10:05 and sunset at 16:18 -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.