Marin County

Marin County Weather in August

Average temperatures, rainfall, sunshine and the best places to visit in Marin County, the United States of America in August.

🔎
Novato San Rafael Mill Valley Sausalito

Considering a trip to Marin County, the United States of America this August and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What to Expect in Marin County in August

Marin County, the United States of America is a region in the United States of America. August in Marin County generally has temperatures that range from pleasant to warm, with almost no precipitation. August falls during the summer season.

Temperatures

During the day temperatures vary from pleasant in Sausalito at 19°C (66°F) to warm in Novato at 27°C (81°F). At night it cools down to 11°C (52°F) in Novato and 13°C (55°F) in Sausalito.

For a closer look at conditions across Marin County, the United States of America, refer to the map below.

Precipitation

August is a very dry month with an average rainfall of around 0 mm (0 in) in Novato. Looking at the climate data spanning the last 30 years, this month usually has the lowest rainfall in Novato, marking it as the year's driest month.

Average sunshine

Many locations offer abundant sunshine during this month. For instance, Novato enjoys approximately 288 hours of sunlight, ideal for those seeking sunny weather.

Explore Marin County by month

Pick a month to see the average temperature, rainfall and sunshine in Marin County — and find the best time to visit. (based on Novato)

January14°C (57°F) February16°C (61°F) March18°C (64°F) April20°C (68°F) May22°C (72°F) June26°C (79°F) This monthJuly27°C (81°F) August27°C (81°F) September28°C (82°F) October24°C (75°F) November18°C (64°F) December14°C (57°F)
Best Time to Visit Marin County →

Best Places to Visit in Marin County in August

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Marin County.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Marin County

What is the weather like in August for some of the most popular destinations in Marin County, the United States of America?

Temperature range in Marin County (August)

Precipitation variation in Marin County (August)

Novato

In August Novato generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 11°C (52°F) and almost no monthly rainfall. So on average the conditions are perfect that month.

« July
August
September »
July
August
September
Max temperature
27°C (81°F)
27°C (81°F)
28°C (82°F)
Min temperature
11°C (52°F)
11°C (52°F)
11°C (52°F)
Monthly sun hours
313 hours
288 hours
270 hours
Monthly rainfall
0.2 mm (0.01 in)
0 mm (0 in)
3.7 mm (0.1 in)
Monthly rainy days
0 days
0 days
a single day
Weather conditions
perfect
perfect
perfect
Climate in Novato →

San Rafael

In August San Rafael generally has high temperatures with maximum daytime temperatures around 25°C (77°F), minimum nighttime temperatures around 12°C (54°F) and almost no monthly rainfall. So on average the conditions are perfect that month.

« July
August
September »
July
August
September
Max temperature
25°C (77°F)
25°C (77°F)
26°C (79°F)
Min temperature
12°C (54°F)
12°C (54°F)
12°C (54°F)
Monthly sun hours
313 hours
288 hours
270 hours
Monthly rainfall
0.2 mm (0.01 in)
0 mm (0 in)
4 mm (0.2 in)
Monthly rainy days
0 days
0 days
a single day
Weather conditions
perfect
perfect
perfect
Climate in San Rafael →

Mill Valley

In August Mill Valley generally has high temperatures with maximum daytime temperatures around 23°C (73°F), minimum nighttime temperatures around 12°C (54°F) and almost no monthly rainfall. So on average the conditions are perfect that month.

« July
August
September »
July
August
September
Max temperature
23°C (73°F)
23°C (73°F)
24°C (75°F)
Min temperature
12°C (54°F)
12°C (54°F)
12°C (54°F)
Monthly sun hours
313 hours
288 hours
270 hours
Monthly rainfall
0.3 mm (0.01 in)
0.3 mm (0.01 in)
5 mm (0.2 in)
Monthly rainy days
0 days
0 days
2 days
Weather conditions
perfect
perfect
perfect
Climate in Mill Valley →

Sausalito

In August Sausalito generally has pleasant temperatures with maximum daytime temperatures around 19°C (66°F), minimum nighttime temperatures around 13°C (55°F) and almost no monthly rainfall. So on average the conditions are perfect that month.

« July
August
September »
July
August
September
Max temperature
19°C (66°F)
19°C (66°F)
21°C (70°F)
Min temperature
13°C (55°F)
13°C (55°F)
13°C (55°F)
Monthly sun hours
313 hours
288 hours
270 hours
Monthly rainfall
0.3 mm (0.01 in)
0.4 mm (0.02 in)
3.8 mm (0.1 in)
Monthly rainy days
0 days
a single day
a single day
Weather conditions
perfect
perfect
perfect
Climate in Sausalito →

Fairfax

In August Fairfax generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 12°C (54°F) and almost no monthly rainfall. So on average the conditions are perfect that month.

« July
August
September »
July
August
September
Max temperature
28°C (82°F)
27°C (81°F)
27°C (81°F)
Min temperature
12°C (54°F)
12°C (54°F)
12°C (54°F)
Monthly sun hours
313 hours
288 hours
270 hours
Monthly rainfall
0.3 mm (0.01 in)
0 mm (0 in)
4.3 mm (0.2 in)
Monthly rainy days
0 days
0 days
a single day
Weather conditions
perfect
perfect
perfect
Climate in Fairfax →

Is your destination not in the list? Have a look at all destinations in Marin County, in the United States of America.

Popular cities in August

Day & night temperatures, rainfall and average weather in Marin County in August.

City Weather Day temp Night temp Rainfall
Novato 27°C (81°F) 11°C (52°F) 0 mm (0 in)
San Rafael 25°C (77°F) 12°C (54°F) 0 mm (0 in)
Mill Valley 23°C (73°F) 12°C (54°F) 0.3 mm (0.01 in)
Sausalito 19°C (66°F) 13°C (55°F) 0.4 mm (0.02 in)
Fairfax 27°C (81°F) 12°C (54°F) 0 mm (0 in)
Larkspur 24°C (75°F) 12°C (54°F) 0.1 mm (0 in)

Marin County weather in August: frequently asked questions

What is the weather like in Marin County, the United States of America in August?

August in Marin County, the United States of America brings perfect weather. In Novato, daytime temperatures are typically around 27°C (81°F) and nighttime lows hover near 11°C (52°F).

What is the average temperature in Marin County, the United States of America in August?

Average temperatures in Marin County, the United States of America during August range from a nighttime low near 11°C (52°F) to a daytime high around 27°C (81°F) in Novato.

Does Marin County, the United States of America get a lot of rain in August?

Not particularly. Novato averages just 0 mm (0 in) of rain in August, making it a mostly dry month for Marin County, the United States of America.

Is August a Good Time to Visit Marin County, the United States of America?

We consider August to be one of the best times to travel to Marin County, the United States of America. Typically, the climate in Novato is perfect.

Generally speaking, the best visiting conditions can be found in April, May, June, July, August, September and October offering mostly perfect weather in Novato. On the other hand, the months of January, February and December tend to have unpleasant weather conditions.

Interested in more climate information?

We have much more information about the climate in Marin County.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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.
Must visit in the United States of America →