World Resorts USA Kenai Weather

Kenai weather in September

Weather in Kenai: September

Average day temperature: 50.9°F
Average night temperature: 47.6°F
Sea water temperature: 53.4°F
Number of sunny days: 3 days
Day length: 11.5 - 14.1 hours
Number of rainy days: 3 days
Precipitation totals: 1.2 in.

Air temperature in September, °F

Show year:
2025
2024
2023

The highest day temperature during September of 2025 was 57°F. At the same time the lowest night temperature was 44°F. Daily and nightly averages during September were 51.9°F and 49.7°F.

Sea water temperature in Kenai in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2025 was 54.1°F. The highest and lowest sea temperatures during the month were 55.9°F and 51.8°F.

Sunny, partly cloudy and cloudy days

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

Precipitation total in September, in.

Precipitation total value in Kenai in September is 1.2 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 8.2 mph

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 September is: 3.7.

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: 02:58
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