Gladstone (OR) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Gladstone.
Climate overview of Gladstone
Gladstone, Oregon, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 28°C (82°F) in July, while winters cool to 8°C (46°F) in December.
Rain/snowfall is high, totalling around 1135 mm (45 in) per year. December is the wettest month and July the driest. The city also experiences a distinct dry season from July to August, with warm summers and cold winters. The most sunshine falls in July, with an average of 11.1 hours of daily sunshine.
Gladstone Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Gladstone - and find the best time to visit.
Monthly Temperature in Gladstone
Depending on the time of the year, temperatures range from comfortable to chilly in Gladstone. Average maximum daytime temperatures range from a comfortable 28°C (82°F) in July, the warmest time of the year, to a chilly 8°C (46°F) during cooler months like December.
At night, you can expect temperatures ranging from 14°C (57°F) in July to around 2°C (36°F) during December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Gladstone
Gladstone has a relatively rain/snowy climate with high precipitation levels, averaging 1135 mm (45 in) of rain/snowfall annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, December it receives heavy rainfall, averaging 194 mm (7.6 in) of precipitation, recorded across 20 rainy days. In contrast, the driest month July brings less rainfall, with 11 mm (0.4 in) over 4 rainy days. For more details, please visit our Gladstone Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Gladstone
Seasonal changes in sunshine hours are quite dramatic in Gladstone. While July receives considerable daily sunshine with up to 11.1 hours, December marks the darkest time of the year, where sunshine is scarce with only 2.1 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Gladstone by Month
The relative humidity is high throughout the year in Gladstone.
The city experiences its highest humidity in December, reaching 83%. In July, the humidity drops to its lowest level at 63%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Gladstone
The mean wind speed over the year ranges from 2 m/s (4 knots) in September and October to 4 m/s (8 knots) in January. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Gladstone
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, July, August and September
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: July and August
- Wettest months: January, October, November and December, when rainfall is highest.
- Seasonal pattern: A distinct dry season from July to August, with warm summers and cold winters
Frequently asked questions about the climate in Gladstone
What is the best time to visit Gladstone?
May, June, July, August and September typically offer the most optimal weather in Gladstone. In contrast, January, March, November and December tend to have less optimal conditions. Gladstone has a distinct dry season from July to August, with warm summers and cold winters.
What temperatures can I expect in Gladstone?
Daytime highs range from 8°C (46°F) in December to 28°C (82°F) in July. Nighttime lows range from 2°C (36°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Gladstone get?
Annual rainfall is around 1135 mm (45 in). December is the wettest month with 194 mm (7.6 in), while July is the driest with 11 mm (0.4 in).
How sunny is Gladstone?
Gladstone receives around 2,341 hours of sunshine per year. July is the sunniest month with 332 hours, while December is the cloudiest with just 64 hours. Overall, Gladstone enjoys abundant sunshine.
Gladstone 3-Day Forecast
Gladstone (OR) 3-Day Forecast
Gladstone on the map
Gladstone is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
The 10 most alternative cities in the United States
Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes
A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States
Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.