August weather forecast and climate
Martinez, CA

A cow grazing in the vast Martinez Hills
A cow grazing in the vast Martinez Hills' fields near Martinez Town, California

Weather in August

The last month of the summer, August, is another warm month in Martinez, California, with average temperature fluctuating between 57.4°F (14.1°C) and 83.8°F (28.8°C).

Temperature

In Martinez, the average high-temperature in August is relatively the same as in July - a still moderately hot 83.8°F (28.8°C). The average low-temperature, in August, is 57.4°F (14.1°C).

Heat index

The average heat index in August is appraised at a hot 87.3°F (30.7°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'felt air temperature', or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, metabolic differences, wind). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Martinez, the average relative humidity is 60%.

Rainfall

July and August are months with the least rain in Martinez, California, when the rain falls for 1 days and typically aggregates up to 0.04" (1mm) of rain.

Daylight

In Martinez, the average length of the day is 13.6h.

Sunshine

In August, the average sunshine is 11.9h.

UV index

Months with the highest UV index in Martinez are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from the exposure to the Sun's UV radiation for average individuals.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in August in Martinez?

In Martinez, California, in August, the average high-temperature is 83.8°F (28.8°C), and the average low-temperature is 57.4°F (14.1°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), that factores the actual air temperature with the relative humidity, is estimated at 87.3°F (30.7°C).

What is the average humidity in August in Martinez?

In August, the average relative humidity is 60%.

How much does it rain in Martinez in August?

In Martinez, during August, the rain falls for 1 days and regularly aggregates up to 0.04" (1mm) of precipitation.

What is the driest month in Martinez?

Months with the least rainfall in Martinez, California, are July and August Rain falls for 1 days and accumulates 0.04" (1mm) of rain.

How many hours of daylight does Martinez have in August?

The average length of the day in August in Martinez is 13.6h.

How many hours of sunshine does Martinez have in August?

In Martinez, the average sunshine in August is 11.9h.

What are the months with the highest UV index in Martinez?

Months with the highest UV index are June through August, with an average maximum UV index of 6.

How high is the UV index in August in Martinez?

In Martinez, California, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in August
Martinez, CA

Average temperature in August - Martinez, CA
  • Average high temperature in August: 83.8°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is December (55.4°F).

  • Average low temperature in August: 57.4°F

The month with the highest average low temperature is September (57.6°F).
The coldest months (with the lowest average low temperature) are January and December (42.3°F).

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Average pressure in August
Martinez, CA

Average pressure in August - Martinez, CA
  • Average pressure in August: 29.92"

The month with the highest atmospheric pressure is January (30.14").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed in August
Martinez, CA

Average wind speed in August - Martinez, CA
  • Average wind speed in August: 6.7mph

The windiest month (with the highest average wind speed) is May (7.4mph).
The calmest month (with the lowest average wind speed) is November (4.5mph).

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Average humidity in August
Martinez, CA

Average humidity in August - Martinez, CA
  • Average humidity in August: 60%

The month with the highest relative humidity is March (74%).
Months with the lowest relative humidity are September and October (56%).

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Average rainfall in August
Martinez, CA

Average rainfall in August - Martinez, CA
  • Average rainfall in August: 0.04"

The wettest month (with the highest rainfall) is February (0.98").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in August
Martinez, CA

Average rainfall days in August - Martinez, CA
  • Average rainfall days in August: 1 days

The month with the highest number of rainy days is March (8.3 days).
The month with the least rainy days is August (1 days).

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Average daylight in August /
Average sunshine in August
Martinez, CA

Average daylight in August / Average sunshine in August - Martinez, CA
  • Average daylight in August: 13.6h

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 August: 11.9h

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 5.7h).

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Average sunshine days in August
Martinez, CA

Average sunshine days in August - Martinez, CA
  • Average sunshine days in August: 28.9 days

The month with the most sunshine days is July (29 days).
Months with the least sunshine days are February and March (22.1 days).

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Average UV index in August
Martinez, CA

Average UV index in August - Martinez, CA
  • Average UV index in August: 6

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in August
Martinez, CA

Average cloud cover in August - Martinez, CA
  • Average cloud cover in August: 9

Months with the most cloud cover are March and December (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 7).

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Average visibility in August
Martinez, CA

Average visibility in August - Martinez, CA
  • Average visibility in August: 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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