July weather forecast and climate
Mill Valley, CA

Weather in July

July, like June, is an agreeable summer month in Mill Valley, California, with average temperature ranging between max 70.5°F (21.4°C) and min 54.3°F (12.4°C).

Temperature

In Mill Valley, the average high-temperature is almost the same as in June - a still pleasant 70.5°F (21.4°C). In Mill Valley, the average low-temperature is 54.3°F (12.4°C).

Humidity

The average relative humidity in Mill Valley is 75%.

Rainfall

Months with the least rainfall are June through September Rain falls for 1.4 days and accumulates 0.04" (1mm) of rain.

Daylight

In July, the average length of the day is 14.5h.

Sunshine

July has the most sunshine of the year, with an average of 11.2h of sunshine.

UV index

Months with the highest UV index in Mill Valley, California, are April, June through September, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to the Sun's UV rays for the average person.
Note: In July, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in July in Mill Valley?

In Mill Valley, California, in July, the average high-temperature is 70.5°F (21.4°C), and the average low-temperature is 54.3°F (12.4°C).

What is the average humidity in July in Mill Valley?

In July, the average relative humidity in Mill Valley, California, is 75%.

How much does it rain in Mill Valley in July?

In Mill Valley, in July, during 1.4 rainfall days, 0.04" (1mm) of precipitation is typically accumulated.

What is the driest month in Mill Valley?

June through September are months with the least rain when the rain falls for 1.4 days and typically aggregates up to 0.04" (1mm) of rain.

What is the average length of the day in July in Mill Valley?

In Mill Valley, the average length of the day in July is 14.5h.

What month has the most sunshine in Mill Valley?

July has the most sunshine of the year in Mill Valley, with an average of 11.2h of sunshine.

How many hours of sunshine does Mill Valley have in July?

In July, the average sunshine is 11.2h.

What is the month with the highest UV index in Mill Valley?

April, June through September, with an average maximum UV index of 5, are months with the highest UV index in Mill Valley.

What is the UV index intensity in July in Mill Valley?

In Mill Valley, California, the average daily maximum UV index in July is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV radiation.

Average temperature in July
Mill Valley, CA

Average temperature in July - Mill Valley, CA
  • Average high temperature in July: 70.5°F

The warmest month (with the highest average high temperature) is September (72.3°F).
The month with the lowest average high temperature is December (55.4°F).

  • Average low temperature in July: 54.3°F

The month with the highest average low temperature is September (56.1°F).
The coldest month (with the lowest average low temperature) is December (45.3°F).

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Average pressure in July
Mill Valley, CA

Average pressure in July - Mill Valley, CA
  • Average pressure in July: 29.93"

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are June, August and September (29.92").

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Average wind speed in July
Mill Valley, CA

Average wind speed in July - Mill Valley, CA
  • Average wind speed in July: 6.6mph

The windiest month (with the highest average wind speed) is May (7.8mph).
The calmest months (with the lowest average wind speed) are October and November (5.5mph).

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Average humidity in July
Mill Valley, CA

Average humidity in July - Mill Valley, CA
  • Average humidity in July: 75%

The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in July
Mill Valley, CA

Average rainfall in July - Mill Valley, CA
  • Average rainfall in July: 0.04"

The wettest month (with the highest rainfall) is February (0.87").
The driest months (with the least rainfall) are June, July, August and September (0.04").

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Average rainfall days in July
Mill Valley, CA

Average rainfall days in July - Mill Valley, CA
  • Average rainfall days in July: 1.4 days

The month with the highest number of rainy days is March (8.8 days).
Months with the least rainy days are June and August (1.2 days).

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Average daylight in July /
Average sunshine in July
Mill Valley, CA

Average daylight in July / Average sunshine in July - Mill Valley, CA
  • Average daylight in July: 14.5h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in July: 11.2h

The month with the most sunshine is July (Average sunshine: 11.2h).
The month with the least sunshine is December (Average sunshine: 5.5h).

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Average sunshine days in July
Mill Valley, CA

Average sunshine days in July - Mill Valley, CA
  • Average sunshine days in July: 26.3 days

The month with the most sunshine days is June (26.4 days).
The month with the least sunshine days is March (20.7 days).

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Average UV index in July
Mill Valley, CA

Average UV index in July - Mill Valley, CA
  • Average UV index in July: 5

Months with the highest UV index are April, June, July, August and September (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in July
Mill Valley, CA

Average cloud cover in July - Mill Valley, CA
  • Average cloud cover in July: 21

The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 19).

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Average visibility in July
Mill Valley, CA

Average visibility in July - Mill Valley, CA
  • Average visibility in July: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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