May weather forecast
Kodiak, AK

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Natural forests, mountains, and distant hill ranges surrounding the small town of Kodiak in Alaska
Natural forests, mountains, and distant hill ranges surrounding the small town of Kodiak in Alaska

Weather in May

May showcases the Kodiak weather transitioning fully into the spring season, with warmer temperatures, extended daylight hours, and an abundance of sunshine. In May, the weather becomes markedly warmer compared to April, and snowfall gives way to rainfall. Despite the increased rainfall, the end of snowfall marks the beginning of the summer season. With temperatures reaching 45.3°F (7.4°C), May has the third-highest average sea temperature for the year. The increase in the sunshine duration allows visitors and locals to relish in the beautiful outdoors and spectacular local wildlife.

Temperature

May's arrival in Kodiak coincides with a subtle temperature rise, moving from April's cold 39.7°F (4.3°C) to a frosty 45.3°F (7.4°C). A steady low-temperature average of 41.5°F (5.3°C) is logged during May, reflecting a modest dip from daytime readings.

Humidity

In Kodiak, Alaska, the average relative humidity in May is 83%.

Rainfall

In May, the rain falls for 15.3 days. Throughout May, 2.72" (69mm) of precipitation is accumulated. Throughout the year, in Kodiak, there are 171.2 rainfall days, and 37.32" (948mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall in Kodiak. May is the last month it regularly snows. During 0.6 snowfall days, in May, Kodiak aggregates 0.08" (2mm) of snow. Throughout the year, there are 35.1 snowfall days, and 13.74" (349mm) of snow is accumulated.

Ocean temperature

In Kodiak, in May, the average water temperature is 43.7°F (6.5°C).
Note: Diving into 43.7°F (6.5°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

In Kodiak, Alaska, the average length of the day in May is 16h and 43min.
On the first day of May, sunrise is at 6:15 am and sunset at 9:58 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 10:56 pm AKDT.

Sunshine

In Kodiak, the average sunshine in May is 6.9h.

UV index

In May, the average daily maximum UV index in Kodiak is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily high UV index of 2 during May translates into the following recommendations:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Updated: Feb 9, 2024 | Published by: Weather U.S. | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What is the average May temperature in Kodiak?

The high-temperature, in May, in Kodiak, is 45.3°F (7.4°C), while the low-temperature averages to 41.5°F (5.3°C).

What is the average humidity in May in Kodiak?

In Kodiak, Alaska, the average relative humidity in May is 83%.

How many days does it rain in May in Kodiak?

In Kodiak, in May, it is raining for 15.3 days, with typically 2.72" (69mm) of accumulated precipitation.

What is the last month it snows in Kodiak?

May is the last month it regularly snows in Kodiak, Alaska. During 0.6 snowfall days, in May, Kodiak aggregates 0.08" (2mm) of snow.

What is the water temperature in May in Kodiak?

In Kodiak, the average seawater temperature in May is 43.7°F (6.5°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.

What is the average length of the day in May in Kodiak?

The average day length in May in Kodiak is 16h and 43min.

When is the sunrise / sunset in May in Kodiak?

In May, on the first day of the month, sunrise is at 6:15 am and sunset at 9:58 pm. On the last day of the month, in Kodiak, sunrise is at 5:18 am and sunset at 10:56 pm AKDT.

How many hours of sunshine does Kodiak have in May?

The average sunshine duration in May in Kodiak is 6.9h.

What is the UV index intensity in May in Kodiak?

In Kodiak, Alaska, the average daily maximum UV index in May is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Kodiak, AK

Average temperature in May - Kodiak, AK
  • Average high temperature in May: 45.3°F

The warmest month (with the highest average high temperature) is August (57.6°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in May: 41.5°F

The month with the highest average low temperature is August (50.7°F).
The coldest month (with the lowest average low temperature) is March (30.6°F).

Average pressure in May
Kodiak, AK

Average pressure in May - Kodiak, AK
  • Average pressure in May: 29.89"Hg

The month with the highest atmospheric pressure is July (29.98"Hg).
The month with the lowest atmospheric pressure is December (29.55"Hg).

Average wind speed in May
Kodiak, AK

Average wind speed in May - Kodiak, AK
  • Average wind speed in May: 10.4mph

The windiest month (with the highest average wind speed) is December (14.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

Average humidity in May
Kodiak, AK

Average humidity in May - Kodiak, AK
  • Average humidity in May: 83%

The month with the highest relative humidity is July (86%).
The months with the lowest relative humidity are March and November (80%).

Average rainfall in May
Kodiak, AK

Average rainfall in May - Kodiak, AK
  • Average rainfall in May: 2.72"

The wettest months (with the highest rainfall) are October and November (4.53").
The driest month (with the least rainfall) is July (1.85").

Average rainfall days in May
Kodiak, AK

Average rainfall days in May - Kodiak, AK
  • Average rainfall days in May: 15.3 days

The month with the highest number of rainy days is September (17.6 days).
The month with the least rainy days is March (10.8 days).

Average snowfall in May
Kodiak, AK

Average snowfall in May - Kodiak, AK
  • Average snowfall in May: 0.08"

The month with the highest snowfall is March (3.15").
The months with the least snowfall are June, July and August (0").

Average snowfall days in May
Kodiak, AK

Average snowfall days in May - Kodiak, AK
  • Average snowfall days in May: 0.6 days

The month with the highest number of snowfall days is March (8.5 days).
The months with the least snowfall days are June, July and August (0 days).

Average sea temperature in May
Kodiak, AK

Average sea temperature in May - Kodiak, AK
  • Average sea temperature in May: 43.7°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 March (39.5°F).

Average daylight in May /
Average sunshine in May
Kodiak, AK

Average daylight in May / Average sunshine in May - Kodiak, AK
  • Average daylight in May: 16h and 4min

The month with the longest days is June (Average daylight: 18h and 0min).
The month with the shortest days is December (Average daylight: 6h and 36min).

  • Average sunshine in May: 6h and 5min

The month with the most sunshine is July (Average sunshine: 8h and 18min).
The months with the least sunshine are January and December (Average sunshine: 2h and 36min).

Average sunshine days in May
Kodiak, AK

Average sunshine days in May - Kodiak, AK
  • Average sunshine days in May: 13.5 days

The month with the most sunshine days is July (14.7 days).
The month with the least sunshine days is April (10.7 days).

Average UV index in May
Kodiak, AK

Average UV index in May - Kodiak, AK
  • Average UV index in May: 2

The months with the highest UV index are June, July, August and September (UV index 3).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in May
Kodiak, AK

Average cloud cover in May - Kodiak, AK
  • Average cloud cover in May: 62

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 52).

Average visibility in May
Kodiak, AK

Average visibility in May - Kodiak, AK
  • Average visibility in May: 6mi

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

Kodiak, Alaska, USA

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