June 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 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).

Temperature

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). In June, in Martinez, California, the average low-temperature is 55°F (12.8°C).

Heat index

In June, the average heat index is calculated to 82.9°F (28.3°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity 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', 'felt air temperature', 'feels like', or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is individual, with diverse people perceiving weather differently for numerous reasons (metabolic differences, differences in body mass, height, and shape, wind), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in Martinez, California, is 57%.

Rainfall

In Martinez, during June, the rain falls for 1.2 days and regularly aggregates up to 0.08" (2mm) of precipitation. Throughout the year, in Martinez, there are 48.9 rainfall days, and 4.96" (126mm) of precipitation is accumulated.

Daylight

June has the longest days of the year, with an average of 14.8h of daylight.

Sunshine

In Martinez, California, the average sunshine is 11.7h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV radiation for the average person.
Note: In June, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in June in Martinez?

In Martinez, California, in June, the average high-temperature is 81.3°F (27.4°C), and the average low-temperature is 55°F (12.8°C). In June, the average heat index (a.k.a. 'real feel', 'apparent temperature'), that represents influence of the relative humidity to air temperaure, is calculated to 82.9°F (28.3°C).

What is the average humidity in June in Martinez?

In Martinez, California, the average relative humidity in June is 57%.

How much does it rain in Martinez in June?

In Martinez, in June, it is raining for 1.2 days, with typically 0.08" (2mm) of accumulated precipitation.

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.

How many hours of daylight does Martinez have in June?

In Martinez, the average length of the day in June is 14.8h.

How many hours of sunshine does Martinez have in June?

The average sunshine in June in Martinez is 11.7h.

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 UV index reading in June in Martinez?

In Martinez, California, the average daily maximum UV index in June is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV radiation.

Average temperature in June
Martinez, CA

Average temperature in June - Martinez, CA
  • Average high temperature in June: 81.3°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 June: 55°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 June
Martinez, CA

Average pressure in June - Martinez, CA
  • Average pressure in June: 29.91"

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 June
Martinez, CA

Average wind speed in June - Martinez, CA
  • Average wind speed in June: 7.3mph

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 June
Martinez, CA

Average humidity in June - Martinez, CA
  • Average humidity in June: 57%

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 June
Martinez, CA

Average rainfall in June - Martinez, CA
  • Average rainfall in June: 0.08"

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 June
Martinez, CA

Average rainfall days in June - Martinez, CA
  • Average rainfall days in June: 1.2 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 June /
Average sunshine in June
Martinez, CA

Average daylight in June / Average sunshine in June - Martinez, CA
  • Average daylight in June: 14.8h

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 June: 11.7h

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 June
Martinez, CA

Average sunshine days in June - Martinez, CA
  • Average sunshine days in June: 28 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 June
Martinez, CA

Average UV index in June - Martinez, CA
  • Average UV index in June: 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 June
Martinez, CA

Average cloud cover in June - Martinez, CA
  • Average cloud cover in June: 12

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 June
Martinez, CA

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