Lake Oswego Weather in May

May in Lake Oswego sees daytime temperatures around 20°C (68°F) and lows of 9°C (48°F) at night. With around 72 mm (2.8 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Lake Oswego in May

Typically around 15 days of rainfall are expected, averaging 72 mm (2.8 in) 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 Lake Oswego in May

The excellent temperature in Lake Oswego in May makes it a solid month to visit, with 20°C (68°F) during the day and 9°C (48°F) at night. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With overnight lows of 9°C (48°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Lake Oswego in May

Expect sunny days throughout the month, with an estimated 276 hours of sunshine. This makes it a pleasant time to visit Lake Oswego.

Wind Speed in Lake Oswego in May

Average wind speeds reach 3 m/s (6 knots) in May, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.

If you favor pleasant temperatures and minimal rainfall, May is one of the best months to visit Lake Oswego.