Oregon (United States of America) in general has a mild climate. Temperatures during the day are in the range from 10 °C (49 °F) in December to 20 °C (68 °F) in August. The least rainy month in Oregon is July with its 5 days of rain, the rainiest month is November, when it rains 20 days. The highest night temperatures could be experienced in August with 11 °C (51 °F), the lowest in December with 3 °C (37 °F). Sea temperatures are in the following range: 10 °C (49 °F) in February to 14 °C (58 °F) in August.
The best time to visit Oregon is between July and August. In this period day temperatures range from 19 °C (66 °F) to 20 °C (68 °F), night temperatures from 11 °C (51 °F) to 11 °C (51 °F) and you can expect on average 5 days of rain per month and 9 of sunshine on average per day. The sea temperature for this period ranges from 14 °C (58 °F) to 14 °C (58 °F). For non-beach activities, such as sightseeing, hiking in nature, the best time to visit is July - September.
The wet season in Oregon falls in the months of November - March. During this period it rains on average 20 days per month and approximately 284 mm (11.17 in) of rain falls per month.
The hottest month in Oregon is August with a temperature of 20 °C (68 °F). The period with the highest daytime temperatures is in Oregon during June - September. The temperatures range at this time between 17 °C (63 °F) - 20 °C (68 °F).
Yes, it can freeze at night in Oregon during these months: December - March, but the frosts can also be very rare or may not happen at all.
The time, when it's dry in Oregon is between June - September. In this period it is raining on average 7 days and approximately 52 mm (2.06 in) precipitation falls per month, which are values below average.
In Oregon, night temperatures between 3 °C (37 °F) and 11 °C (51 °F) can be expected during the year.
The period, which is the sunniest in Oregon, is in the months of June - August, when there is an average of 9 sun hours per day.
Generally, Oregon belongs to destinations with higher humidity. It is in the range of 75 % - 86 %. The most humid months are October - January and the least humid are May - September.
The least cloudy months in Oregon are May - September, when the cloud cover is on average only 40 %.
Oregon is a destination with rather light or moderate winds. The months with the strongest wind are November - January, weakest wind months are July - October.