May weather forecast
Haines, AK

Part of the famed Cannery fishing village along the Pacific Ocean in Haines, Alaska, with a forest background and snow-peaked mountain glaciers
Part of the famed Cannery fishing village along the Pacific Ocean in Haines, Alaska, with a forest background and snow-peaked mountain glaciers

Weather in May

May, the last month of the spring in Haines, is a chilly month, with an average temperature varying between 33.8°F (1°C) and 46.2°F (7.9°C).

Temperature

In May, the average high-temperature rises from a cold 35.2°F (1.8°C) in April to a chilly 46.2°F (7.9°C). In May, in Haines, Alaska, the average low-temperature is 33.8°F (1°C).

Humidity

The least humid month is May, with an average relative humidity of 78%.

Rainfall

In Haines, during May, the rain falls for 17.7 days and regularly aggregates up to 2.28" (58mm) of precipitation. In Haines, Alaska, during the entire year, the rain falls for 200.4 days and collects up to 48.03" (1220mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Haines, Alaska. May is the last month it regularly snows in Haines, Alaska. During 0.5 snowfall days, Haines aggregates 0.08" (2mm) of snow. In Haines, during the entire year, snow falls for 83.4 days and aggregates up to 86.57" (2199mm) of snow.

Ocean temperature

In May, the average ocean temperature in Haines is 43.3°F (6.3°C).
Note: 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.

Daylight

In May, the average length of the day is 17h and 2min.
On the first day of May, sunrise is at 5:01 am and sunset at 8:55 pm. On the last day of the month, sunrise is at 3:58 am and sunset at 10:00 pm AKDT.

Sunshine

In Haines, Alaska, the average sunshine in May is 8.9h.

UV index

In May, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.
Note: In May, the average maximum UV index of 2 translate into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
[Resources]

FAQ

What is the least humid month in Haines?

With an average relative humidity of 78%, May is the least humid month in Haines, Alaska.

What is the average humidity in May in Haines?

In Haines, the average relative humidity in May is 78%.

How many days does it rain in May in Haines?

In May, in Haines, the rain falls for 17.7 days. Throughout May, 2.28" (58mm) of precipitation is accumulated.

What is the last month it snows in Haines?

May is the last month it regularly snows. During 0.5 snowfall days, in May, Haines aggregates 0.08" (2mm) of snow.

What is the water temperature in May in Haines?

In Haines, Alaska, in May, the average water temperature is 43.3°F (6.3°C). Swimming in 43.3°F (6.3°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

How many hours of daylight does Haines have in May?

In Haines, Alaska, the average day length in May is 17h and 2min.

When are sunrise and sunset in May in Haines?

In May, on the first day of the month, sunrise is at 5:01 am and sunset at 8:55 pm. On the last day of the month, sunrise is at 3:58 am and sunset at 10:00 pm AKDT.

How long on average sun shines in May in Haines?

In Haines, Alaska, the average sunshine duration in May is 8.9h.

What is the UV index reading in May in Haines?

The average daily maximum UV index in May in Haines is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to UV radiation.

Average temperature in May
Haines, AK

Average temperature in May - Haines, AK
  • Average high temperature in May: 46.2°F

The warmest month (with the highest average high temperature) is July (56.5°F).
The month with the lowest average high temperature is January (21.6°F).

  • Average low temperature in May: 33.8°F

The month with the highest average low temperature is August (44.1°F).
The coldest month (with the lowest average low temperature) is February (12.4°F).

[Resources]

Average pressure in May
Haines, AK

Average pressure in May - Haines, AK
  • Average pressure in May: 29.98"Hg

The month with the highest atmospheric pressure is July (30.01"Hg).
The month with the lowest atmospheric pressure is November (29.81"Hg).

[Resources]

Average wind speed in May
Haines, AK

Average wind speed in May - Haines, AK
  • Average wind speed in May: 4.7mph

The windiest month (with the highest average wind speed) is January (6.7mph).
The calmest month (with the lowest average wind speed) is May (4.7mph).

[Resources]

Average humidity in May
Haines, AK

Average humidity in May - Haines, AK
  • Average humidity in May: 78%

The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (78%).

[Resources]

Average rainfall in May
Haines, AK

Average rainfall in May - Haines, AK
  • Average rainfall in May: 2.28"

The wettest month (with the highest rainfall) is November (5.87").
The driest month (with the least rainfall) is June (2.2").

[Resources]

Average rainfall days in May
Haines, AK

Average rainfall days in May - Haines, AK
  • Average rainfall days in May: 17.7 days

The month with the highest number of rainy days is October (20.2 days).
The month with the least rainy days is February (9.3 days).

[Resources]

Average snowfall in May
Haines, AK

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

The month with the highest snowfall is December (21.06").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in May
Haines, AK

Average snowfall days in May - Haines, AK
  • Average snowfall days in May: 0.5 days

The month with the highest number of snowfall days is December (17.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average sea temperature in May
Haines, AK

Average sea temperature in May - Haines, AK
  • Average sea temperature in May: 43.2°F

The best month for swimming (with the highest average sea temperature) is August (53.1°F).
The coldest month (with the lowest average sea temperature) is March (39.6°F).

[Resources]

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

Average daylight in May / Average sunshine in May - Haines, AK
  • Average daylight in May: 17h and 2min

The month with the longest days is June (Average daylight: 18h and 27min).
The month with the shortest days is December (Average daylight: 6h and 16min).

  • Average sunshine in May: 8.9h

The month with the most sunshine is June (Average sunshine: 10.2h).
The months with the least sunshine are January and December (Average sunshine: 3.7).

[Resources]

Average sunshine days in May
Haines, AK

Average sunshine days in May - Haines, AK
  • Average sunshine days in May: 10 days

The month with the most sunshine days is February (10.4 days).
The month with the least sunshine days is June (6.3 days).

[Resources]

Average UV index in May
Haines, AK

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

The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are February, November and December (UV index 1).

[Resources]

Average cloud cover in May
Haines, AK

Average cloud cover in May - Haines, AK
  • Average cloud cover in May: 47

The month with the most cloud cover is December (Cloud cover 63).
The month with the least cloud cover is May (Cloud cover 47).

[Resources]

Average visibility in May
Haines, AK

Average visibility in May - Haines, AK
  • Average visibility in May: 5mi

The months with the highest visibility are May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location