World Resorts USA Kenai Weather

Kenai weather in December

Weather in Kenai: December

Average day temperature: 20.6°F
Average night temperature: 19.3°F
Sea water temperature: 35.7°F
Number of sunny days: 6 days
Day length: 5.7 - 6.3 hours
Number of rainy days: 0 days
Precipitation totals: 0.6 in.

Air temperature in December, °F

Show year:
2025
2024
2023

The highest day temperature during December of 2025 was 34°F. At the same time the lowest night temperature was 0°F. Daily and nightly averages during December were 14.7°F and 13.0°F.

Sea water temperature in Kenai in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 35.3°F. The highest and lowest sea temperatures during the month were 39.9°F and 32.4°F.

Sunny, partly cloudy and cloudy days

Mostly all days in December are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in December, in.

Precipitation total value in Kenai in December is 0.6 in. Other months of the year show relatively similar values.

Wind speed in December, mph

The average wind speed value in December is 9.1 mph It makes December most windy month of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 2.5.

Best time for vacation in Kenai

Sunniest months:
January 7 days
June 7 days
March 7 days
Warmest months:
July 57.6 °F
August 57.4 °F
June 54.6 °F
Warmest sea temp:
August 55.9 °F
July 54.0 °F
September 53.4 °F
Coldest months:
January 19.2 °F
December 20.6 °F
February 22.2 °F
Rainiest months:
September 3 days
August 2 days
July 2 days
Windiest months:
December 9.1 mph
January 8.8 mph
November 8.7 mph

Kenai on a weather map

Kenai
+46°F
N 5 mph
Feels like: +45°F
Precip.: 31%
Places in USA:
Name
°F
+55°F
+64°F
+79°F
+77°F
+70°F
+81°F
+63°F
+63°F
+68°F
+59°F
+68°F
+73°F
+79°F
+63°F
24 Hours Forecast
Kenai
Local time: 02:10
September 19, saturday
0300
46°F
N
5 mph
0600
46°F
NW
4 mph
0900
46°F
W
4 mph
1200
48°F
SW
7 mph
1500
52°F
SW
9 mph
1800
50°F
SW
13 mph
2100
48°F
SW
14 mph
September 20, sunday
0000
48°F
S
16 mph
Units of measurement: °C / °F