Mercer Island Weather in June

In Mercer Island, June brings pleasant daytime temperatures around 21°C (70°F), with nights cooling to 12°C (54°F). Some rainfall is to be expected.

Rainfall in Mercer Island in June

Records from the past 30 years suggest around 11 days of rain, with 44 mm (1.7 in) average for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in Mercer Island in June

Weather in Mercer Island is at its excellent in June. Highs reach 21°C (70°F), while nights settle around 12°C (54°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With lows of 12°C (54°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Mercer Island in June

The days are predominantly sunny, with an estimated total of around 269 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

Wind Speed in Mercer Island in June

In June, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.

If you're a fan of comfortable temperatures and drier conditions, June is a great time to visit.