Marin County

Marin County Weather in October

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

Thinking about venturing to Marin County, the United States of America this October and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Marin County in October

Marin County, the United States of America is a region in the United States of America. October in Marin County generally has temperatures that range from pleasant to warm, with moderate precipitation.

Temperatures

The average highest temperatures fluctuate between pleasant in Sausalito at 20°C (68°F) to warm in Novato at 24°C (75°F). Nighttime temperatures generally drop to 9°C (48°F) in Novato and 12°C (54°F) in Sausalito.

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

Precipitation

In October, precipitation varies across different areas. From moderate rainfall in Novato with an average of 31 mm (1.2 in) to moderate rainfall in Fairfax with 55 mm (2.2 in).

Average sunshine

Most destinations offer generous amounts of sunshine this October. For example, Novato gets approximately 243 hours of sunlight, perfect for anyone wanting bright, sunny days.

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)

Best Places to Visit in Marin County in October

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

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 October for some of the most popular destinations in Marin County, the United States of America?

Temperature range in Marin County (October)

Precipitation variation in Marin County (October)

Novato

In October Novato generally has high temperatures with maximum daytime temperatures around 24°C (75°F), minimum nighttime temperatures around 9°C (48°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

September
October
November
Max temperature
28°C (82°F)
24°C (75°F)
18°C (64°F)
Min temperature
11°C (52°F)
9°C (48°F)
7°C (45°F)
Monthly sun hours
270 hours
243 hours
173 hours
Monthly rainfall
3.7 mm (0.1 in)
31 mm (1.2 in)
67 mm (2.6 in)
Monthly rainy days
a single day
4 days
8 days
Weather conditions

San Rafael

In October San Rafael generally has high temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 11°C (52°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

September
October
November
Max temperature
26°C (79°F)
22°C (72°F)
18°C (64°F)
Min temperature
12°C (54°F)
11°C (52°F)
8°C (46°F)
Monthly sun hours
270 hours
243 hours
173 hours
Monthly rainfall
4 mm (0.2 in)
44 mm (1.7 in)
72 mm (2.8 in)
Monthly rainy days
a single day
4 days
7 days
Weather conditions

Mill Valley

In October Mill Valley generally has pleasant temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 11°C (52°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

September
October
November
Max temperature
24°C (75°F)
22°C (72°F)
18°C (64°F)
Min temperature
12°C (54°F)
11°C (52°F)
8°C (46°F)
Monthly sun hours
270 hours
243 hours
173 hours
Monthly rainfall
5 mm (0.2 in)
50 mm (2 in)
78 mm (3.1 in)
Monthly rainy days
2 days
5 days
8 days
Weather conditions

Sausalito

In October Sausalito generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 12°C (54°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

September
October
November
Max temperature
21°C (70°F)
20°C (68°F)
18°C (64°F)
Min temperature
13°C (55°F)
12°C (54°F)
9°C (48°F)
Monthly sun hours
270 hours
243 hours
173 hours
Monthly rainfall
3.8 mm (0.1 in)
34 mm (1.3 in)
60 mm (2.4 in)
Monthly rainy days
a single day
4 days
8 days
Weather conditions

Fairfax

In October Fairfax generally has high temperatures with maximum daytime temperatures around 24°C (75°F), minimum nighttime temperatures around 11°C (52°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

September
October
November
Max temperature
27°C (81°F)
24°C (75°F)
18°C (64°F)
Min temperature
12°C (54°F)
11°C (52°F)
8°C (46°F)
Monthly sun hours
270 hours
243 hours
173 hours
Monthly rainfall
4.3 mm (0.2 in)
55 mm (2.2 in)
82 mm (3.2 in)
Monthly rainy days
a single day
5 days
8 days
Weather conditions

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 October

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

City Weather Day temp Night temp Rainfall
Novato 24°C (75°F) 9°C (48°F) 31 mm (1.2 in)
San Rafael 22°C (72°F) 11°C (52°F) 44 mm (1.7 in)
Mill Valley 22°C (72°F) 11°C (52°F) 50 mm (2 in)
Sausalito 20°C (68°F) 12°C (54°F) 34 mm (1.3 in)
Fairfax 24°C (75°F) 11°C (52°F) 55 mm (2.2 in)
Larkspur 22°C (72°F) 11°C (52°F) 48 mm (1.9 in)

Marin County weather in October: frequently asked questions

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

October in Marin County, the United States of America brings perfect weather. In Novato, daytime temperatures are typically around 24°C (75°F) and nighttime lows hover near 9°C (48°F).

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

Average temperatures in Marin County, the United States of America during October range from a nighttime low near 9°C (48°F) to a daytime high around 24°C (75°F) in Novato.

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

October is on the drier side in Marin County, the United States of America. Novato averages only about 31 mm (1.2 in), with most days staying dry.

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

We consider October 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, April, May, June, July, August, September and October provide 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.