Pleasanton (CA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Pleasanton.
Climate overview of Pleasanton
Pleasanton, California, United States of America, sees big temperature differences between seasons, with July peaking at 31°C (88°F) and December dropping to 14°C (57°F).
Rainfall is modest, totalling around 401 mm (16 in) annually. The city experiences a distinct dry season from April to October, with very warm summers and mild winters. December tends to be the wettest month. The most sunshine falls in May, with an average of 10.8 hours of daily sunshine.
Pleasanton Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Pleasanton - and find the best time to visit.
Monthly Temperature in Pleasanton
Visitors to Pleasanton can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a very warm 31°C (88°F) in July, the warmest time of the year, to a moderate 14°C (57°F) during cooler months like December.
At night, you can expect temperatures ranging from 14°C (57°F) in July to around 4°C (39°F) during December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Pleasanton
Pleasanton tends toward drier weather patterns, receiving approximately 401 mm (16 in) of rain per year. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, December it receives moderate rainfall, averaging 91 mm (3.6 in) of precipitation, recorded across 12 rainy days. In contrast, the driest month July brings less rainfall, with 0 mm (0 in) over 0 rainy days. For more details, please visit our Pleasanton 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 Pleasanton
Seasonal changes in sunshine hours are quite dramatic in Pleasanton. While May receives considerable daily sunshine with up to 10.8 hours, December marks the darkest time of the year, where sunshine is scarce with only 5.3 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Pleasanton by Month
The relative humidity is high throughout the year in Pleasanton.
The city experiences its highest humidity in January, reaching 80%. In June, the humidity drops to its lowest level at 71%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Pleasanton
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: April, May, June and October
- Warmest weather: July, August and September
- Most sunshine: April, May, June and July
- Fewest rainy days: June, July, August and September
- Seasonal pattern: A distinct dry season from April to October, with very warm summers and mild winters
Frequently asked questions about the climate in Pleasanton
What is the best time to visit Pleasanton?
April, May, June and October typically offer the most optimal weather in Pleasanton. In contrast, January, February and December tend to have less optimal conditions. Pleasanton has a distinct dry season from April to October, with very warm summers and mild winters.
What temperatures can I expect in Pleasanton?
Daytime highs range from 14°C (57°F) in December to 31°C (88°F) in July. Nighttime lows range from 4°C (39°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Pleasanton get?
Annual rainfall is around 401 mm (16 in). December is the wettest month with 91 mm (3.6 in), while July is the driest with 0 mm (0 in).
How sunny is Pleasanton?
Pleasanton receives around 3,058 hours of sunshine per year. May is the sunniest month with 324 hours, while December is the cloudiest with just 160 hours. Overall, Pleasanton enjoys abundant sunshine.
Pleasanton 3-Day Forecast
Pleasanton (CA) 3-Day Forecast
Pleasanton on the map
Pleasanton 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.