June weather forecast
Sammamish, WA

Dense pine tree cover and houses in the town of Sammamish, Washington, in the Pine Lake area
Dense pine tree cover and houses in the town of Sammamish, Washington, in the Pine Lake area

Weather in June

The first month of the summer, June, is an agreeable month in Sammamish, Washington, with an average temperature varying between 46.4°F (8°C) and 69.3°F (20.7°C).

Temperature

In June, the average high-temperature is practically the same as in May - a pleasant 69.3°F (20.7°C). In June, in Sammamish, the average low-temperature is 46.4°F (8°C).

Humidity

In June, the average relative humidity is 74%.

Rainfall

In Sammamish, in June, during 10 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. Throughout the year, there are 136.7 rainfall days, and 13.39" (340mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

June has the longest days of the year in Sammamish, with an average of 15h and 55min of daylight.
On the first day of the month, sunrise is at 5:14 am and sunset at 8:57 pm. On the last day of June, sunrise is at 5:13 am and sunset at 9:09 pm PDT.

Sunshine

In Sammamish, Washington, the average sunshine in June is 9.3h.

UV index

The months with the highest UV index are June and July, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 5 in June transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. 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.
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FAQ

What is the temperature in June in Sammamish?

In Sammamish, in June, the average high-temperature is 69.3°F (20.7°C), and the average low-temperature is 46.4°F (8°C).

What is the average humidity in June in Sammamish?

In Sammamish, Washington, the average relative humidity in June is 74%.

How much does it rain in Sammamish in June?

In Sammamish, Washington, in June, it is raining for 10 days, with typically 0.75" (19mm) of accumulated precipitation.

When it does not snow in Sammamish?

In Sammamish, Washington, snow does not fall in May through October.

When are the longest days in Sammamish?

With an average of 15h and 55min of daylight, June has the longest days of the year.

What is the average length of the day in June in Sammamish?

The average day length in June in Sammamish, Washington, is 15h and 55min.

When are sunrise and sunset in June in Sammamish?

In June, on the first day of the month, sunrise is at 5:14 am and sunset at 8:57 pm. On the last day of the month, sunrise is at 5:13 am and sunset at 9:09 pm PDT.

How long on average sun shines in June in Sammamish?

In Sammamish, Washington, the average sunshine duration in June is 9.3h.

What is the month with the highest UV index in Sammamish?

The months with the highest UV index in Sammamish are June and July, with an average maximum UV index of 5.

How high is the UV index in June in Sammamish?

In Sammamish, the average daily maximum UV index in June is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Sammamish, WA

Average temperature in June - Sammamish, WA
  • Average high temperature in June: 69.3°F

The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (42.3°F).

  • Average low temperature in June: 46.4°F

The month with the highest average low temperature is August (52.2°F).
The coldest month (with the lowest average low temperature) is December (33.6°F).

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Average pressure in June
Sammamish, WA

Average pressure in June - Sammamish, WA
  • Average pressure in June: 30.01"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

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Average wind speed in June
Sammamish, WA

Average wind speed in June - Sammamish, WA
  • Average wind speed in June: 3.6mph

The windiest month (with the highest average wind speed) is January (5mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).

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Average humidity in June
Sammamish, WA

Average humidity in June - Sammamish, WA
  • Average humidity in June: 74%

The months with the highest relative humidity are January, February and December (85%).
The month with the lowest relative humidity is July (70%).

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Average rainfall in June
Sammamish, WA

Average rainfall in June - Sammamish, WA
  • Average rainfall in June: 0.75"

The wettest month (with the highest rainfall) is December (1.85").
The driest months (with the least rainfall) are July and August (0.35").

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Average rainfall days in June
Sammamish, WA

Average rainfall days in June - Sammamish, WA
  • Average rainfall days in June: 10 days

The month with the highest number of rainy days is March (14.8 days).
The month with the least rainy days is August (5.2 days).

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Average snowfall in June
Sammamish, WA

Average snowfall in June - Sammamish, WA
  • Average snowfall in June: 0"

The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in June
Sammamish, WA

Average snowfall days in June - Sammamish, WA
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are May, June, July, August and October (0 days).

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Average daylight in June /
Average sunshine in June
Sammamish, WA

Average daylight in June / Average sunshine in June - Sammamish, WA
  • Average daylight in June: 15h and 55min

The month with the longest days is June (Average daylight: 15h and 55min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in June: 9h and 18min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 4h and 12min).

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Average sunshine days in June
Sammamish, WA

Average sunshine days in June - Sammamish, WA
  • Average sunshine days in June: 16.3 days

The month with the most sunshine days is August (24 days).
The month with the least sunshine days is November (13.5 days).

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Average UV index in June
Sammamish, WA

Average UV index in June - Sammamish, WA
  • Average UV index in June: 5

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

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Average cloud cover in June
Sammamish, WA

Average cloud cover in June - Sammamish, WA
  • Average cloud cover in June: 44

The month with the most cloud cover is December (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 26).

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Average visibility in June
Sammamish, WA

Average visibility in June - Sammamish, WA
  • Average visibility in June: 6mi

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

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