Monthly 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 January

January, like December, is another mild winter month in Martinez, California, with average temperature fluctuating between 42.3°F (5.7°C) and 56.7°F (13.7°C). In January, the average high-temperature is almost the same as in December - a still moderate 56.7°F (13.7°C). Weather in January »

Weather in February

February, the last month of the winter, in Martinez, is also a moderate month, with average temperature ranging between max 59.9°F (15.5°C) and min 43°F (6.1°C). In February, the average high-temperature is essentially the same as in January - a still moderate 59.9°F (15.5°C). Weather in February »

Weather in March

The first month of the spring, March, is a comfortable month in Martinez, California, with average temperature fluctuating between 44.4°F (6.9°C) and 63.1°F (17.3°C). In March, the average high-temperature is relatively the same as in February - an enjoyable 63.1°F (17.3°C). Weather in March »

Weather in April

April is an agreeable spring month in Martinez, California, with temperature in the range of an average low of 46.9°F (8.3°C) and an average high of 68.5°F (20.3°C). In Martinez, California, the average high-temperature in April slightly increases, from an enjoyable 63.1°F (17.3°C) in March, to an agreeable 68.5°F (20.3°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderately hot month in Martinez, California, with average temperature varying between 50.4°F (10.2°C) and 73.6°F (23.1°C). In Martinez, the average high-temperature is relatively the same as in April - a warm 73.6°F (23.1°C). Weather in May »

Weather in June

June, the first month of the summer, in Martinez, is also a moderately hot month, with average temperature varying between 81.3°F (27.4°C) and 55°F (12.8°C). In Martinez, the average high-temperature in June slightly increases, from 73.6°F (23.1°C) in May, to a still warm 81.3°F (27.4°C). Weather in June »

Weather in July

July, like June, in Martinez, California, is another warm summer month, with average temperature varying between 84.2°F (29°C) and 56.1°F (13.4°C). With an average high-temperature of 84.2°F (29°C) and an average low-temperature of 56.1°F (13.4°C), July is the warmest month. The average heat index is evaluated at a tropical 87.3°F (30.7°C). Weather in July »

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). 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). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Martinez, California, with average temperature varying between 57.6°F (14.2°C) and 82.8°F (28.2°C). In Martinez, the average high-temperature in September is essentially the same as in August - a still moderately hot 82.8°F (28.2°C). Weather in September »

Weather in October

October, the same as September, is a moderately hot autumn month in Martinez, California, with average temperature fluctuating between 74.7°F (23.7°C) and 54.3°F (12.4°C). In Martinez, the average high-temperature marginally drops, from 82.8°F (28.2°C) in September, to a still warm 74.7°F (23.7°C). Weather in October »

Weather in November

The last month of the autumn, November, is another comfortable month in Martinez, California, with temperature in the range of an average low of 46.9°F (8.3°C) and an average high of 63.5°F (17.5°C). In Martinez, the average high-temperature drops, from a moderately hot 74.7°F (23.7°C) in October, to an enjoyable 63.5°F (17.5°C). Weather in November »

Weather in December

December, the first month of the winter, in Martinez, is still a mild month, with average temperature fluctuating between 55.4°F (13°C) and 42.3°F (5.7°C). The coldest month is December, with an average high-temperature of 55.4°F (13°C) and an average low-temperature of 42.3°F (5.7°C). Weather in December »
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FAQ

How much does it rain in Martinez?

Throughout the year, there are 48.9 rainfall days, and 4.96" (126mm) of precipitation is accumulated.

When is the lowest UV index in Martinez?

Months with the lowest UV index in Martinez are January, February, November and December, with an average maximum UV index of 3.

What is the rainiest month in Martinez?

February is the month with the most rainfall. Rain falls for 5.6 days and accumulates 0.98" (25mm) of precipitation.

What is the most humid month in Martinez?

March is the most humid month, with an average relative humidity of 74%.

When are the longest days in Martinez?

The month with the longest days in Martinez, California, is June, with an average of 14.8h of daylight.

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

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

What is the warmest month in Martinez?

With an average high-temperature of 84.2°F (29°C) and an average low-temperature of 56.1°F (13.4°C), July is the warmest month in Martinez.

What is the driest month in Martinez?

Months with the least rainfall are July and August Rain falls for 1.6 days and accumulates 0.04" (1mm) of rain.

What month has the most sunshine in Martinez?

July has the most sunshine of the year in Martinez, California, with an average of 12h of sunshine.

What are the least humid months in Martinez?

September and October, with an average relative humidity of 56%, are the least humid months in Martinez.

What is the coldest month in Martinez?

With an average high-temperature of 55.4°F (13°C) and an average low-temperature of 42.3°F (5.7°C), December is the coldest month in Martinez, California.

What is the month with the shortest days in Martinez?

The month with the shortest days in Martinez is December, with an average of 9.6h of daylight.

What is the month with the least sunshine in Martinez?

With an average of 5.7h of sunshine, December has the least sunshine of the year in Martinez, California.

Average temperature
Martinez, CA

Average temperature - Martinez, CA

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).

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
Martinez, CA

Average pressure - Martinez, CA

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
Martinez, CA

Average wind speed - Martinez, CA

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
Martinez, CA

Average humidity - Martinez, CA

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
Martinez, CA

Average rainfall - Martinez, CA

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
Martinez, CA

Average rainfall days - Martinez, CA

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 / Average sunshine
Martinez, CA

Average daylight / Average sunshine - Martinez, CA

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

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
Martinez, CA

Average sunshine days - Martinez, CA

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
Martinez, CA

Average UV index - Martinez, CA

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 visibility
Martinez, CA

Average visibility - Martinez, CA

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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