December weather forecastHomer, AK

The scenic Homer Spit region in Homer, Alaska, overlooking the calm seawater and distant mountain ranges

December

Weather in December

December in Homer amplifies the cold conditions and registers the highest snowfall in the year, with a significant 11.54" (293mm). This makes it an ideal time for snow-related activities. With the days becoming increasingly shorter, it is characterized by minimal daylight hours and meager sunshine time, adding to the winter's intensity. The relatively high humidity levels, coupled with chilling sea temperatures, contribute to the overall frosty ambiance. This month's declining temperature and rising snowfall underscore the robust winter qualities, setting the stage for the upcoming new year in the city.

Temperature

Homer experiences an average high-temperature of a freezing cold 28.9°F (-1.7°C) in December, marking an insignificant shift from 32°F (0°C) in November. Homer welcomes an average low temperature of 23.7°F (-4.6°C) in December, a gentle shift from the day's high.

Humidity

January and December, with an average relative humidity of 86%, are the most humid months in Homer.

Rainfall

December is the month with the most rainfall. Rain falls for 12.7 days and accumulates 4.65" (118mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. The month with the most snowfall is December, when snow falls for 14.9 days and typically aggregates up to 11.54" (293mm) of snow.

Ocean temperature

In Homer, in December, the average water temperature is 42.8°F (6°C).
Note: Diving into 42.8°F (6°C) is practical below 50°F (10°C), given you're wearing protective swim gear; without it, expect a quick onset of cold shock and a struggle to breathe. Merely touching waters at 55.4°F (13°C) feels ice-cold.

Daylight

December has the shortest days of the year, with an average of 6h and 6min of daylight.
On the first day of December in Homer, Alaska, sunrise is at 9:39 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 10:04 am and sunset at 4:14 pm AKST.

Sunshine

The month with the least sunshine is December, with an average of 2.6h of sunshine.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.
Note: The UV index of 1 during December leads to these advisories:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.

Updated: Jun 3, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature, in December, in Homer, is 28.9°F (-1.7°C), while the average low-temperature is 23.7°F (-4.6°C).

January and December, with an average relative humidity of 86%, are most humid months in Homer.

In December, the average relative humidity is 86%.

December is the month with the most rainfall. Rain falls for 12.7 days and accumulates 4.65" (118mm) of precipitation.

In Homer, during December, the rain falls for 12.7 days and regularly aggregates up to 4.65" (118mm) of precipitation.

The month with the most snowfall is December, when snow falls for 14.9 days and typically aggregates up to 11.54" (293mm) of snow.

In Homer, during December, snow falls for 14.9 days and regularly aggregates up to 11.54" (293mm) of snow.

In Homer, in December, the average water temperature is 42.8°F (6°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

December has the shortest days of the year, with an average of 6h and 6min of daylight.

In December, the average day length is 6h and 8min.

On the first day of December in Homer, sunrise is at 9:39 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 10:04 am and sunset at 4:14 pm AKST.

The month with the least sunshine is December, with an average of 2.6h of sunshine.

In December, the average sunshine duration is 2.6h.

The month with the lowest UV index is December, with an average maximum UV index of 1.

In Homer, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

32°F

28.9°F

27°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

9.3mph

9.4mph

9.1mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

11.3

14.9

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

9.3

8.5

11.3

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Homer, AK

Average high temperature in December: 28.9°F

The warmest month (with the highest average high temperature) is July (57.7°F).
The month with the lowest average high temperature is January (27°F).

Average low temperature in December: 23.7°F

The months with the highest average low temperature are July and August (48.7°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in December
Homer, AK

Average pressure in December: 29.6"Hg

The month with the highest atmospheric pressure is July (29.96"Hg).
The month with the lowest atmospheric pressure is December (29.6"Hg).

Average wind speed in December
Homer, AK

Average wind speed in December: 8.7mph

The windiest month (with the highest average wind speed) is November (8.8mph).
The calmest month (with the lowest average wind speed) is June (5.1mph).

Average humidity in December
Homer, AK

Average humidity in December: 86%

The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is May (76%).

Average rainfall in December
Homer, AK

Average rainfall in December: 4.65"

The wettest month (with the highest rainfall) is December (4.65").
The driest month (with the least rainfall) is June (1.54").

Average rainfall days in December
Homer, AK

Average rainfall days in December: 12.7 days

The month with the highest number of rainy days is September (19.9 days).
The month with the least rainy days is February (9 days).

Average snowfall in December
Homer, AK

Average snowfall in December: 11.54"

The month with the highest snowfall is December (11.54").
The months with the least snowfall are June, July and August (0").

Average snowfall days in December
Homer, AK

Average snowfall days in December: 14.9 days

The month with the highest number of snowfall days is December (14.9 days).
The months with the least snowfall days are June and August (0 days).

Average sea temperature in December
Homer, AK

Average sea temperature in December: 43°F

The best month for swimming (with the highest average sea temperature) is August (54°F).
The coldest month (with the lowest average sea temperature) is March (39°F).

Average daylight in December /
Average sunshine in December
Homer, AK

Average daylight in December: 6h and 6min

The month with the longest days is June (Average daylight: 18h and 36min).
The month with the shortest days is December (Average daylight: 6h and 6min).

Average sunshine in December: 2h and 36min

The months with the most sunshine are June and July (Average sunshine: 8h and 48min).
The month with the least sunshine is December (Average sunshine: 2h and 36min).

Average sunshine days in December
Homer, AK

Average sunshine days in December: 8.5 days

The months with the most sunshine days are March and July (12.3 days).
The month with the least sunshine days is December (8.5 days).

Average UV index in December
Homer, AK

Average UV index in December: 1

The month with the highest UV index is July (UV index 4).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Homer, AK

Average cloud cover in December: 62

The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 52).

Average visibility in December
Homer, AK

Average visibility in December: 5mi

The months with the highest visibility are May, June, July, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April, August and December (5mi).