August weather forecast
Mukilteo, WA

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White buildings in neat, green fields near the iconic Mukilteo Lighthouse, Washington
White buildings in neat, green fields near the iconic Mukilteo Lighthouse, Washington

Weather in August

The last month of the summer, August, is also an agreeable month in Mukilteo, Washington, with an average temperature ranging between min 54°F (12.2°C) and max 72.7°F (22.6°C).

Temperature

The warmest time of the year is August, with temperatures averaging a high of 72.7°F (22.6°C) and a low of 54°F (12.2°C).

Humidity

In August, the average relative humidity is 74%.

Rainfall

In Mukilteo, during August, the rain falls for 6.3 days and regularly aggregates up to 0.47" (12mm) of precipitation. In Mukilteo, during the entire year, the rain falls for 173.1 days and collects up to 26.02" (661mm) of precipitation.

Snowfall

In Mukilteo, snow does not fall in May through October.

Ocean temperature

August is the month with the warmest seawater, with an average ocean temperature of 53.6°F (12°C).
Note: Diving into 53.6°F (12°C) when it's under 50°F (10°C) can cause immediate cold shock symptoms, marked by hyperventilation.

Daylight

The average length of the day in August is 14h and 14min.
On the first day of August in Mukilteo, sunrise is at 5:46 am and sunset at 8:44 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:51 pm PDT.

Sunshine

August has the most sunshine of the year, with an average of 10.7h of sunshine.

UV index

In Mukilteo, the average daily maximum UV index in August is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: A daily maximum UV index of 4 in August translates into the following instructions:
Take precautions - Protection against sunburn is recommended. To guard against the harmful effects of the Sun, minimize exposure during midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.

Frequently asked questions

What is the warmest month?

August, on average, is the warmest month, registering a high temperature of 72.7°F (22.6°C) and a low of 54°F (12.2°C).

What are August temperatures?

The high-temperature, in August, in Mukilteo, records 72.7°F (22.6°C), while the low-temperature is 54°F (12.2°C).

What is the average humidity in August?

The average relative humidity in August is 74%.

How many days does it rain in August?

In August, the rain falls for 6.3 days. Throughout August, 0.47" (12mm) of precipitation is accumulated.

When it does not snow?

May through October are months without snowfall.

When is the ocean warmest?

With an average ocean temperature of 53.6°F (12°C), August is the month with the warmest seawater.

How cold is the water in August?

In Mukilteo, Washington, the average seawater temperature in August is 53.6°F (12°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.

How many hours of daylight does Mukilteo have in August?

In August, the average day length is 14h and 14min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:46 am and sunset at 8:44 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:51 pm PDT.

What month has the most sunshine?

With an average of 10.7h of sunshine, August has the most sunshine of the year in Mukilteo.

How many hours of sunshine does Mukilteo have in August?

The average sunshine duration in August is 10.7h.

What is the UV index reading in August?

In Mukilteo, the average daily maximum UV index in August is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Mukilteo, WA

Average temperature in August - Mukilteo, WA
  • Average high temperature in August: 72.7°F

The warmest month (with the highest average high temperature) is August (72.7°F).
The month with the lowest average high temperature is December (42.6°F).

  • Average low temperature in August: 54°F

The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (35.4°F).

Average pressure in August
Mukilteo, WA

Average pressure in August - Mukilteo, WA
  • Average pressure in August: 30.01"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).

Average wind speed in August
Mukilteo, WA

Average wind speed in August - Mukilteo, WA
  • Average wind speed in August: 3.6mph

The windiest month (with the highest average wind speed) is November (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

Average humidity in August
Mukilteo, WA

Average humidity in August - Mukilteo, WA
  • Average humidity in August: 74%

The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is July (72%).

Average rainfall in August
Mukilteo, WA

Average rainfall in August - Mukilteo, WA
  • Average rainfall in August: 0.47"

The wettest month (with the highest rainfall) is December (3.54").
The driest month (with the least rainfall) is July (0.43").

Average rainfall days in August
Mukilteo, WA

Average rainfall days in August - Mukilteo, WA
  • Average rainfall days in August: 6.3 days

The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (6.3 days).

Average snowfall in August
Mukilteo, WA

Average snowfall in August - Mukilteo, WA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (4.61").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Mukilteo, WA

Average snowfall days in August - Mukilteo, WA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in August
Mukilteo, WA

Average sea temperature in August - Mukilteo, WA
  • Average sea temperature in August: 53.5°F

The best month for swimming (with the highest average sea temperature) is August (53.5°F).
The coldest month (with the lowest average sea temperature) is February (45.3°F).

Average daylight in August /
Average sunshine in August
Mukilteo, WA

Average daylight in August / Average sunshine in August - Mukilteo, WA
  • Average daylight in August: 14h and 1min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in August: 10h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in August
Mukilteo, WA

Average sunshine days in August - Mukilteo, WA
  • Average sunshine days in August: 22.6 days

The month with the most sunshine days is August (22.6 days).
The month with the least sunshine days is November (9.1 days).

Average UV index in August
Mukilteo, WA

Average UV index in August - Mukilteo, WA
  • Average UV index in August: 4

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in August
Mukilteo, WA

Average cloud cover in August - Mukilteo, WA
  • Average cloud cover in August: 25

The month with the most cloud cover is December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in August
Mukilteo, WA

Average visibility in August - Mukilteo, WA
  • Average visibility in August: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Mukilteo, Washington, USA

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