Marin County

Marin County Weather in July

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

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Novato San Rafael Mill Valley Sausalito

Considering a trip to Marin County, the United States of America this July 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 July

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

Temperatures

Based on our climate data spanning from 1990-2020, the average maximum temperature is pleasant in Sausalito at 19°C (66°F) to warm in Fairfax at 28°C (82°F). Nighttime temperatures generally drop to 12°C (54°F) in Fairfax and 13°C (55°F) in Sausalito.

For specific regional insights in Marin County, the United States of America, refer to the map provided below.

Precipitation

July is a very dry month with an average rainfall of around 0.2 mm (0.01 in) in Novato.

Average sunshine

July brings good sunshine to many areas. Novato sees around 313 hours of sunlight, great for visitors looking for bright 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)

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 July

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

Temperature range in Marin County (July)

Precipitation variation in Marin County (July)

Novato

In July 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.

« June
July
August »
June
July
August
Max temperature
26°C (79°F)
27°C (81°F)
27°C (81°F)
Min temperature
10°C (50°F)
11°C (52°F)
11°C (52°F)
Monthly sun hours
312 hours
313 hours
288 hours
Monthly rainfall
7.2 mm (0.3 in)
0.2 mm (0.01 in)
0 mm (0 in)
Monthly rainy days
a single day
0 days
0 days
Weather conditions
perfect
perfect
perfect
Climate in Novato →

San Rafael

In July 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.

« June
July
August »
June
July
August
Max temperature
24°C (75°F)
25°C (77°F)
25°C (77°F)
Min temperature
11°C (52°F)
12°C (54°F)
12°C (54°F)
Monthly sun hours
312 hours
313 hours
288 hours
Monthly rainfall
8.2 mm (0.3 in)
0.2 mm (0.01 in)
0 mm (0 in)
Monthly rainy days
a single day
0 days
0 days
Weather conditions
perfect
perfect
perfect
Climate in San Rafael →

Mill Valley

In July 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.

« June
July
August »
June
July
August
Max temperature
22°C (72°F)
23°C (73°F)
23°C (73°F)
Min temperature
11°C (52°F)
12°C (54°F)
12°C (54°F)
Monthly sun hours
312 hours
313 hours
288 hours
Monthly rainfall
9 mm (0.4 in)
0.3 mm (0.01 in)
0.3 mm (0.01 in)
Monthly rainy days
2 days
0 days
0 days
Weather conditions
perfect
perfect
perfect
Climate in Mill Valley →

Sausalito

In July 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.

« June
July
August »
June
July
August
Max temperature
19°C (66°F)
19°C (66°F)
19°C (66°F)
Min temperature
11°C (52°F)
13°C (55°F)
13°C (55°F)
Monthly sun hours
312 hours
313 hours
288 hours
Monthly rainfall
7.7 mm (0.3 in)
0.3 mm (0.01 in)
0.4 mm (0.02 in)
Monthly rainy days
a single day
0 days
a single day
Weather conditions
perfect
perfect
perfect
Climate in Sausalito →

Fairfax

In July Fairfax generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 12°C (54°F) and almost no monthly rainfall. So on average the conditions are perfect that month.

« June
July
August »
June
July
August
Max temperature
26°C (79°F)
28°C (82°F)
27°C (81°F)
Min temperature
11°C (52°F)
12°C (54°F)
12°C (54°F)
Monthly sun hours
312 hours
313 hours
288 hours
Monthly rainfall
8.5 mm (0.3 in)
0.3 mm (0.01 in)
0 mm (0 in)
Monthly rainy days
a single day
0 days
0 days
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.

In our records: the United States of America July extremes

Notable July records observed across cities in the United States of America in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • In our records, the warmest July day in the United States of America reached 51°C (124°F) in Palm Desert on July 28, 1995.

Popular cities in July

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

City Weather Day temp Night temp Rainfall
Novato 27°C (81°F) 11°C (52°F) 0.2 mm (0.01 in)
San Rafael 25°C (77°F) 12°C (54°F) 0.2 mm (0.01 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) 0.3 mm (0.01 in)
Fairfax 28°C (82°F) 12°C (54°F) 0.3 mm (0.01 in)
Larkspur 24°C (75°F) 12°C (54°F) 0.3 mm (0.01 in)

Marin County weather in July: frequently asked questions

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

July 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 July?

Novato averages a daytime maximum of 27°C (81°F) in July, with overnight lows close to 11°C (52°F).

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

Not particularly. Novato averages just 0.2 mm (0.01 in) of rain in July, making it a mostly dry month for Marin County, the United States of America.

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

We consider July 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.

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