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Contents
- The climate of Kenai
- The best time to visit Kenai
- The worst time to visit Kenai
- Spring weather in Kenai
- Summer weather in Kenai
- Autumn weather in Kenai
- Winter weather in Kenai
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
High rock cliffs of the scenic Spire Cove in Fjords National Park in Kenai, Alaska
The climate of Kenai
Kenai, Alaska, USA enjoys a Subarctic, subalpine environment, as per the Köppen climate classification Dsc. The town finds itself on the west coast of the United States, lending its weather patterns to a combination of marine influences and cold northern air.
Annual weather changes in Kenai are significant. Temperatures swing between an average high of 61.3°F (16.3°C) in July to a chilly low of 18.3°F (-7.6°C) in January. Humidity levels generally remain between 69 to 87% throughout the year, contributing to the prevalent cool atmosphere.
Rainfall ranges from 0.91" (23mm) in June to 2.87" (73mm) in October, presenting a somewhat even spread of precipitation throughout the year. Snowfall, however, takes a prominent hold during winter, displaying peaks in February with 6.85" (174mm) and December with 8.74" (222mm). Sea temperatures follow a fairly predictable increase and decrease pattern, with maximum temperatures of 53.4°F (11.9°C) in August and minimum at 34.2°F (1.2°C) in February.
Interestingly, sunshine hours hike up to a high of 18.9 hours in June and dip to a low of 5.9 hours in December. The cloud cover remains fairly consistent year-round, contributing to Kenai's generally overcast conditions. The average visibility remains consistently at 6 miles, notwithstanding the climatological shifts amid different seasons.
Annual weather changes in Kenai are significant. Temperatures swing between an average high of 61.3°F (16.3°C) in July to a chilly low of 18.3°F (-7.6°C) in January. Humidity levels generally remain between 69 to 87% throughout the year, contributing to the prevalent cool atmosphere.
Rainfall ranges from 0.91" (23mm) in June to 2.87" (73mm) in October, presenting a somewhat even spread of precipitation throughout the year. Snowfall, however, takes a prominent hold during winter, displaying peaks in February with 6.85" (174mm) and December with 8.74" (222mm). Sea temperatures follow a fairly predictable increase and decrease pattern, with maximum temperatures of 53.4°F (11.9°C) in August and minimum at 34.2°F (1.2°C) in February.
Interestingly, sunshine hours hike up to a high of 18.9 hours in June and dip to a low of 5.9 hours in December. The cloud cover remains fairly consistent year-round, contributing to Kenai's generally overcast conditions. The average visibility remains consistently at 6 miles, notwithstanding the climatological shifts amid different seasons.
The best time to visit Kenai
Summer, stretching between June and August, marks the best time to visit Kenai, with pleasant weather characterized by higher sunshine duration —peaking at 18.9 hours— and comparatively warmer temperatures, from 51.4°F (10.8°C) to 61.3°F (16.3°C). Rainfall stays relatively low, especially in June, with just 0.91" (23mm) of precipitation. Furthermore, the sea temperatures are at their warmest, scaling up to 53.4°F (11.9°C), perfect for marine activities.
The worst time to visit Kenai
Deep winter, particularly in December and January, could be arguably the most challenging time to visit Kenai. Extremely cold temperatures set in, dropping to as low as 18.3°F (-7.6°C), coupled with hefty snowfall, particularly 8.74" (222mm) in December. Furthermore, daylight dips to its shortest duration of roughly 6 hours, restricting outdoor activities.
Spring weather in Kenai
Spring in Kenai runs from March to May, depicting an upward trend in temperatures, from 29.7°F (-1.3°C) to 51.4°F (10.8°C). Rainfall is moderate, while the snowfall gradually diminishes, from 4.17" (106mm) in March to virtually nonexistent by May. Daylight extends noticeably from about 11.9 hours to 17.4 hours, and longer sunshine hours from 6.2 to 9.7 hours, giving a bright and enjoyable atmosphere.
Summer weather in Kenai
As the calendar flips to summer months, from June to August, warmth encompasses Kenai. The temperatures ascend from a comfortable 57.7°F (14.3°C) to an agreeable 61.3°F (16.3°C). Rainfall is low, ensuring most days have clear skies—a great time to enjoy both land and water-based activities. The daylight reaches its peak in June at 18.9 hours, promising extended fun hours outdoors.
Autumn weather in Kenai
September through November is the autumn season in Kenai, and it witnesses a drop in temperatures from 53.1°F (11.7°C) to 31.1°F (-0.5°C). Precipitation experiences a slight surge, most notably in October, with 2.87" (73mm). Autumn transitions from late-summer warmth to the chill of early winter. Visitors to Kenai enjoy an extraordinary display of colorful autumn foliage set against a backdrop of snow-capped mountains.
Winter weather in Kenai
Winters in Kenai, encompassing December through February, are characteristically cold with temperatures tumbling down to 18.3°F (-7.6°C). Snowfall is frequent, often ranging from 4.17" (106mm) to a formidable 8.74" (222mm) in December. Frosty winds add to the overall chill, making it one of the harsh seasons in Kenai. Despite the brutal cold, the wintry setting offers a majestic charm for those who relish snowy landscapes.
Weather in January
The first month of the year in Kenai, Alaska is characterized by cold temperatures and enduring snowfalls. These conditions make the region a prime location for winter sports enthusiasts. The lowest average temperatures hover between 18.3°F (-7.6°C) to 24.3°F (-4.3°C), making it crucial for residents and visitors to bundle up adequately to stave off the chill. Weather in January »
Weather in February
February ushers in slightly warmer temperatures, although the conditions remain quite frosty in Kenai. The snowfall tends to intensify, recording 6.85" (174mm), a considerable increase from January. Despite the fewer days of rain, the weather maintains its icy grip, setting a picturesque winter scene. Weather in February »
Weather in March
Weather transition begins in March, with a slight rise in temperature. While snowfall reduces drastically to 4.17" (106mm) compared to February's fall, the weather remains far from balmy. Glimmers of spring start to show as daylight hours extend to 11.9 hours, inflicting a gentle thaw in the still frost-laden landscape. Weather in March »
Weather in April
Kenai experiences evident weather changes in April, bidding adieu to heavy snowfall and welcoming sporadic rain showers. An increase in both sea and land temperatures represents a thawing environment but keeps a nip in the air. The city basks under 14.7 hours of daylight care of a retracting winter. Weather in April »
Weather in May
May is a month marked by the onset of warmer weather and a significant drop in relative humidity to 69%. Last vestiges of winter disappear as snowfall reaches zero inches, thus signaling a complete withdrawal of winter's icy hold. The extended daylight and increasing sunshine hours add to the cheer, painting a pleasant environment with resplendent colors. Weather in May »
Weather in June
June sees an almost steady trend in Kenai's weather, save for rising temperatures. The glorious Alaskan sun graces the city for up to 18.9 hours, inviting locals and tourists alike to enjoy longer days. Although the humidity sees an uptick, it's comfortably accompanied by cool sea breezes to offset any discomfort. Weather in June »
Weather in July
Basking in the warmth of summer, July records the highest temperature range of 51.3°F (10.7°C) to 61.3°F (16.3°C). Despite a surge in warmth, the local weather remains pleasant courtesy of the sea’s moderate temperatures. July also observes an upswing in the UV index, making it necessary to don sun-protection. Weather in July »
Weather in August
In August, nature continues its warm embrace, albeit with slightly cooler temperatures compared to July. Precipitation levels see a spike, recording at 2.01" (51mm) from the previous month's 1.42" (36mm). The rainfall, coupled with reduced sunshine hours, signals an imminent change in season, yet the weather remains amiable. Weather in August »
Weather in September
Kenai ushers in autumn with a noticeable drop in temperature and daylight hours. Meanwhile, a rise in rainfall to a significant 2.72" (69mm) bears the hallmark of an impending transition. The cloud cover increases, dropping subtle hints of the looming winter. Weather in September »
Weather in October
As the autumn leaves start to fall, October witnesses an entirely different climate palette. There's a surge in the rain, with the trend reaching its height at 2.87" (73mm). The increased rainfall ushers in colder times, significantly reducing the overall temperature. Weather in October »
Weather in November
November brings chilly winds and shorter daylight hours, marking the onset of Kenai’s long winters. It records the snowfall at 3.94" (100mm), making it a period for residents to get their winter gear ready. The month witnesses a decrease in the overall pressure, indicating unstable and intense weather conditions. Weather in November »
Weather in December
In Kenai, December manifests the full wrath of winter with heavy snowfall escalating to 8.74" (222mm). Adorned with a thick layer of snow, the city transforms into a white winter paradise. However, limited hours of daylight and meager sunshine hours paint a monochromatic hue to the city's landscape. Weather in December »
Updated: Jun 3, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
In Kenai, January is known for its average lowest temperatures, reaching a high of 24.3°F (-4.3°C) and a low of 18.3°F (-7.6°C).
What is the most humid month?
The months with the highest humidity are January and February, with an average relative humidity of 87%.
How many days does it rain?
Throughout the year, there are 136.3 rainfall days, and 19.49" (495mm) of precipitation is accumulated.
When does it snow?
January through April, September through December are months with snowfall.
How many days does it snow?
Throughout the year, there are 62.1 snowfall days, and 30.71" (780mm) of snow is accumulated.
When is the lowest UV index?
With an average maximum UV index of 1, January is the month with the lowest UV index in Kenai.
When is the ocean coldest?
With an average ocean temperature of 34.3°F (1.3°C), February is the month with the coldest seawater.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from AKST to AKDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from AKDT to AKST.
What is the least humid month in Kenai?
May is the least humid month, with an average relative humidity of 69%.
When it does not snow?
In Kenai, snow does not fall in May through August.
What is the driest month?
June is the month with the least rainfall. Rain falls for 11.6 days and accumulates 0.91" (23mm) of precipitation.
When are the longest days?
The month with the longest days is June, with an average of 18h and 54min of daylight.
What month has the most sunshine?
June has the most sunshine of the year, with an average of 10.6h of sunshine.
What are the months with the highest UV index?
The months with the highest UV index are June and July, with an average maximum UV index of 4.
What part of the year is the hottest?
Kenai's warmest weather arrives in July, when temperatures average a high of 61.3°F (16.3°C) and a low of 51.3°F (10.7°C).
What is the month with the warmest ocean?
With an average ocean temperature of 53.4°F (11.9°C), August is the month with the warmest seawater.
What is the wettest month?
The month with the most rainfall is October, when the rain falls for 15.6 days and typically aggregates up to 2.87" (73mm) of precipitation.
When does it snow the most?
December is the month with the most snowfall. Snow falls for 12.7 days and accumulates 8.74" (222mm) of snow.
What is the month with the shortest days?
With an average of 5h and 54min of daylight, December has the shortest days of the year.
What is the month with the least sunshine?
With an average of 2.9h of sunshine, December has the least sunshine of the year.
Average temperature
Kenai, AK
The warmest month (with the highest average high temperature) is July (61.3°F).
The month with the lowest average high temperature is January (24.3°F).
The month with the highest average low temperature is July (51.3°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure
Kenai, AK
- Average pressure in January:
29.67"Hg - Average pressure in February:
29.8"Hg - Average pressure in March:
29.75"Hg - Average pressure in April:
29.8"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.85"Hg - Average pressure in September:
29.73"Hg - Average pressure in October:
29.68"Hg - Average pressure in November:
29.65"Hg - Average pressure in December:
29.64"Hg
The month with the highest atmospheric pressure is July (29.96"Hg).
The month with the lowest atmospheric pressure is December (29.64"Hg).
Average wind speed
Kenai, AK
- Average wind speed in January:
9.3mph - Average wind speed in February:
8.5mph - Average wind speed in March:
7.5mph - Average wind speed in April:
6.8mph - Average wind speed in May:
6.7mph - Average wind speed in June:
6.7mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.7mph - Average wind speed in September:
7.1mph - Average wind speed in October:
8.1mph - Average wind speed in November:
9.5mph - Average wind speed in December:
9.6mph
The windiest month (with the highest average wind speed) is December (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity
Kenai, AK
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is May (69%).
Average rainfall
Kenai, AK
- Average rainfall in January:
1.26" - Average rainfall in February:
1.26" - Average rainfall in March:
1.02" - Average rainfall in April:
1.26" - Average rainfall in May:
1.06" - Average rainfall in June:
0.91"
- Average rainfall in July:
1.42" - Average rainfall in August:
2.01" - Average rainfall in September:
2.72" - Average rainfall in October:
2.87" - Average rainfall in November:
1.77" - Average rainfall in December:
1.93"
The wettest month (with the highest rainfall) is October (2.87").
The driest month (with the least rainfall) is June (0.91").
Average rainfall days
Kenai, AK
- Average rainfall days in January:
8.7 days - Average rainfall days in February:
5.5 days - Average rainfall days in March:
7.6 days - Average rainfall days in April:
12.8 days - Average rainfall days in May:
13.2 days - Average rainfall days in June:
11.6 days
- Average rainfall days in July:
12.8 days - Average rainfall days in August:
15.8 days - Average rainfall days in September:
16.6 days - Average rainfall days in October:
15.6 days - Average rainfall days in November:
9 days - Average rainfall days in December:
7.1 days
The month with the highest number of rainy days is September (16.6 days).
The month with the least rainy days is February (5.5 days).
Average snowfall
Kenai, AK
The month with the highest snowfall is December (8.74").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days
Kenai, AK
- Average snowfall days in January:
11 days - Average snowfall days in February:
11.8 days - Average snowfall days in March:
10.2 days - Average snowfall days in April:
5.7 days - Average snowfall days in May:
0.2 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.3 days - Average snowfall days in October:
1.5 days - Average snowfall days in November:
8.7 days - Average snowfall days in December:
12.7 days
The month with the highest number of snowfall days is December (12.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average sea temperature
Kenai, AK
The best month for swimming (with the highest average sea temperature) is August (53.4°F).
The coldest month (with the lowest average sea temperature) is February (34.2°F).
Average daylight / Average sunshine
Kenai, AK
- Average daylight in January:
6h and 5min - Average daylight in February:
9h and 1min - Average daylight in March:
11h and 5min - Average daylight in April:
14h and 4min - Average daylight in May:
17h and 2min - Average daylight in June:
18h and 5min
- Average daylight in July:
18h and 1min - Average daylight in August:
15h and 4min - Average daylight in September:
12h and 5min - Average daylight in October:
10h and 0min - Average daylight in November:
7h and 2min - Average daylight in December:
5h and 5min
The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in January:
3h and 2min - Average sunshine in February:
4h and 3min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 1min - Average sunshine in May:
9h and 4min - Average sunshine in June:
10h and 4min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
8h and 4min - Average sunshine in September:
6h and 1min - Average sunshine in October:
5h and 0min - Average sunshine in November:
3h and 4min - Average sunshine in December:
2h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).
Average sunshine days
Kenai, AK
- Average sunshine days in January:
14.9 days - Average sunshine days in February:
13.4 days - Average sunshine days in March:
16 days - Average sunshine days in April:
12.3 days - Average sunshine days in May:
16 days - Average sunshine days in June:
16.6 days
- Average sunshine days in July:
16.1 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
11.5 days - Average sunshine days in October:
13.1 days - Average sunshine days in November:
14.3 days - Average sunshine days in December:
14 days
The month with the most sunshine days is June (16.6 days).
The month with the least sunshine days is September (11.5 days).
Average UV index
Kenai, AK
The months with the highest UV index are June and July (UV index 4).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Kenai, AK
The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is June (Cloud cover 44).
Average visibility
Kenai, AK
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).
Kenai, Alaska, USA
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