May weather forecastKenai, AK

May
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. Regardless, despite the opening up of skies and extended viewing visibility, the weather retains a capricious gusty element. Overall, it's a great time for outdoor excursions and river fishing.Temperature
The shift into May is marked by a rise in the average high-temperature, moving from April's icy 40.5°F (4.7°C) to a fresh 51.4°F (10.8°C). The average low-temperature of 41.7°F (5.4°C) is witnessed during May.Humidity
The least humid month is May, with an average relative humidity of 69%.Rainfall
In May, the rain falls for 13.2 days. Throughout May, 1.06" (27mm) of precipitation is accumulated. In Kenai, during the entire year, the rain falls for 136.3 days and collects up to 19.49" (495mm) of precipitation.Snowfall
May through August are months without snowfall.Ocean temperature
In Kenai, the average seawater temperature in May is 41.4°F (5.2°C).Note: Swimming in 41.4°F (5.2°C) can be lethal. Merely spending a few minutes in 55.4°F (13°C) waters feels harsh, and venturing below 50°F (10°C) might disrupt breathing control and bring about cold shock, contingent on individual resilience.
Daylight
In May, the average length of the day is 17h and 22min.On the first day of May, sunrise is at 5:56 am and sunset at 10:07 pm. On the last day of the month, sunrise is at 4:48 am and sunset at 11:17 pm AKDT.
Sunshine
In May, the average sunshine is 9.7h.UV index
In Kenai, the average daily maximum UV index in May is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum UV index of 3 in May translates into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Experience reduced UV exposure by about half when donning a wide-brim hat. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Kenai, AK
- Average high temperature in May: 51.4°F
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).
- Average low temperature in May: 41.7°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 in May
Kenai, AK
- Average pressure in May: 29.92"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 in May
Kenai, AK
- Average wind speed in May: 6.7mph
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 in May
Kenai, AK
- Average humidity in May: 69%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is May (69%).
Average rainfall in May
Kenai, AK
- Average rainfall in May: 1.06"
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 in May
Kenai, AK
- Average rainfall days in May: 13.2 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 in May
Kenai, AK
- Average snowfall in May: 0"
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 in May
Kenai, AK
- Average snowfall days in May: 0.2 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 in May
Kenai, AK
- Average sea temperature in May: 41.4°F
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 in May /
Average sunshine in May
Kenai, AK
- Average daylight in May: 17h and 24min
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 May: 9h and 42min
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 in May
Kenai, AK
- Average sunshine days in May: 16 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 in May
Kenai, AK
- Average UV index in May: 3
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 in May
Kenai, AK
- Average cloud cover in May: 49
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 in May
Kenai, AK
- Average visibility in May: 6mi
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).





