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United StatesThe weather in June in Mercer Island
It's pleasantly warm in June in Mercer Island with an average temperature of 22°C. Temperatures this month range from a low of 19°C to a high of 28°C. At night, you can expect temperatures between 12°C and 16°C.
Looking for great weather? June is a good time to be in Mercer Island. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in June for Mercer Island, Washington. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 41°C in 2021, Mercer Island reached the highest temperature in June over the past 10 years. The lowest daytime temperature in this month was 13°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 7°C to a highest value of 25°C.
Rainfall amount
In June, there is an average of 50 mm of precipitation, spread over 9 days. The wind speed is around 3 Bft, mostly coming from the West.
Daily weather in June for Mercer Island
Click on any day in June to get detailed info about the usual weather on that day in Mercer Island. Check out the historical temperatures and precipitation over the past 10 years on this day.
June weather comparison
| Mercer Island | New York | |
|---|---|---|
| Average temperature | 22°C | 27°C |
| Max. temperature | 28°C | 31°C |
| Min. temperature | 12°C | -5°C |
| Total precipitation | 50 mm | 78 mm |
| Rainy days | 9 days | 11 days |
Start of June
The month of June starts in Mercer Island with warm temps, averaging around 22°C during the day and nights around 13°C.
Mid June
By mid-June, daytime temps drop to around 21°C, with nights around 13°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of June
By the end of June, the average daytime temperature in Mercer Island is around 25°C, while nighttime temps are about 15°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Mercer Island for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in June in Mercer Island, Washington. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in June in Mercer Island
Temperature in June in Mercer Island over the years
Precipitation charts
These charts show the average amount of precipitation in June in Mercer Island, Washington. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in June in Mercer Island
Total precipitation in June in Mercer Island over the years
Daily UV index in June in Mercer Island
This chart shows the average daily UV index in June in Mercer Island, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in June in Mercer Island
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Average weather in Mercer Island by month
Click on a month below to see detailed weather info for Mercer Island. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.