Seattle
Washington, USA
Long-term weather forecast
Long-term weather forecast

June weather forecast and climate
Seattle, WA

Beautiful dusk skyline over the giant skyscrapers of Seattle, Washington
Beautiful dusk skyline over the giant skyscrapers of Seattle, Washington
Summer begins officially in June bringing with it a tolerable 66.8% humidity and warmer temperatures in the range of 51.8°F (11°C) and 69.8°F (21°C). Outdoors become more tolerable as more tourists flock Seattle for summer. The daylight hours extend to sixteen, and the sunshine hours rise to nine.
The sea temperature warms up to 55.4°F (13°C), making it accessible for a swim in the pleasant weather.
The skies clear up, and the rainy days in June reduce significantly to nine with low precipitation of 1.9" (48.3mm).

What is the temperature in Junio in Seattle?

The average high-temperature, in Junio, in Seattle, is 70°F (21.1°C), while the average low-temperature is 52°F (11.1°C).

What is the average humidity in Junio in Seattle?

The average relative humidity in Junio in Seattle is 67.1%.

How many days does it rain in Junio in Seattle?

In Junio, in Seattle, Washington, the rain falls for 9.1 days. Throughout Junio, 1.57" (39.9mm) of precipitation is accumulated.

When it does not snow in Seattle?

Abril through Octubre are months without snowfall in Seattle, Washington.

How cold is the water in Junio in Seattle?

In Seattle, in Junio, the average water temperature is 47.7°F (8.7°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.

When are the longest days in Seattle?

With an average of 15.9h of daylight, Junio has the longest days of the year.

How many hours of daylight does Seattle have in Junio?

The average length of the day in Junio in Seattle is 15.9h.

How long on average sun shines in Junio in Seattle?

In Seattle, Washington, the average sunshine in Junio is 8.9h.

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

Months with the highest UV index are Junio and Julio, with an average maximum UV index of 7.

What is the UV index intensity in Junio in Seattle?

The average daily maximum UV index in Junio in Seattle is 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to the UV radiation.
Average temperature in June - Seattle, WA
  • Average high temperature in June: 69.9°F

The warmest month (with the highest average high temperature) is August (76.3°F).
The month with the lowest average high temperature is December (45.7°F).

  • Average low temperature in June: 51.9°F

The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is December (35.6°F).

Average humidity in June - Seattle, WA
  • Average humidity in June: 67.1%

The month with the highest relative humidity is December (80.1%).
The month with the lowest relative humidity is July (65.4%).

Average rainfall in June - Seattle, WA
  • Average rainfall in June: 1.6"

The wettest month (with the highest rainfall) is November (6.6").
The driest month (with the lowest rainfall) is July (0.7").

Average rainfall days in June - Seattle, WA
  • Average rainfall days in June: 9.1 days

The month with the highest number of rainy days is November (18.4 days).
The month with the lowest number of rainy days is August (4.8 days).

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

Months with the highest snowfall are February and December (1.7").
Months with the lowest snowfall are April, May, June, July, August, September and October (0").

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

The month with the highest number of snowfall days is December (1.6 days).
Months with the lowest number of snowfall days are April, May, June, July, August, September and October (0 days).

Average sea temperature in June - Seattle, WA
  • Average sea temperature in June: 47.6°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 June / Average sunshine in June - Seattle, WA
  • Average daylight in June: 15.9h

The month with the longest days is June (Average daylight: 15.9h).
The month with shortest days is December (Average daylight: 8.5h).

  • Average sunshine in June: 8.9h

The month with most sunshine is July (Average sunshine: 10.1h).
The month with least sunshine is December (Average sunshine: 1.7h).

Average UV index in June - Seattle, WA
  • Average UV index in June: 7

Months with the highest UV index are June and July (UV index 7).
Months with the lowest UV index are January, November and December (UV index 1).