Larkspur Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Larkspur.
Climate overview of Larkspur
Temperatures in Larkspur, Marin County, United States of America, shift moderately through the seasons. The warmest month is September at 24°C (75°F), and the coolest is December at 14°C (57°F).
The city receives around 773 mm (30 in) of rainfall per year. It experiences a distinct dry season from May to September, with warm summers and mild winters. December is the wettest month and August the driest. May is the sunniest month, averaging 10.8 hours of sunshine per day.
Larkspur Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Larkspur - and find the best time to visit.
Monthly Temperature in Larkspur
The weather in Larkspur changes moderately throughout the year, offering enough variation to appreciate each season. On average, daytime temperatures range from a comfortable 24°C (75°F) in September to a moderate 14°C (57°F) in December.
Nighttime temperatures range from 12°C (54°F) in September to 6°C (43°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Larkspur
Generally, Larkspur receives mid-range precipitation levels, with 773 mm (30 in) annually. The seasons in Larkspur bring significant changes in precipitation. The wettest month, December, receives heavy rainfall, with an average of 172 mm (6.8 in) of precipitation. This rainfall is distributed across 13 rainy days.
In contrast, the driest month, August, experiences much less rainfall, totaling 0.1 mm (0 in) over 0 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Larkspur 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 Larkspur
In Larkspur, summer days are longer and more sunny, with daily sunshine hours peaking at 10.8 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 5.3 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Larkspur by Month
The relative humidity is high throughout the year in Larkspur.
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 Larkspur
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, September and October
- Warmest weather: June, July, August and September
- Most sunshine: April, May, June and July
- Fewest rainy days: June, July, August and September
- Wettest months: January, February, March, November and December, when rainfall is highest.
- Seasonal pattern: A distinct dry season from May to September, with warm summers and mild winters
Frequently asked questions about the climate in Larkspur
What is the best time to visit Larkspur?
May, June, July, August, September and October typically offer the most optimal weather in Larkspur. In contrast, January, February and December tend to have less optimal conditions. Larkspur has a distinct dry season from May to September, with warm summers and mild winters.
What temperatures can I expect in Larkspur?
Daytime highs range from 14°C (57°F) in December to 24°C (75°F) in September. Nighttime lows range from 6°C (43°F) to 12°C (54°F).
How much rain does Larkspur get?
Annual rainfall is around 773 mm (30 in). December is the wettest month with 172 mm (6.8 in), while August is the driest with 0.1 mm (0 in).
How sunny is Larkspur?
Larkspur 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, Larkspur enjoys abundant sunshine.
Larkspur 3-Day Forecast
Larkspur 3-Day Forecast
Larkspur on the map
Larkspur 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.