April 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 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).

Temperature

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). In April, the average low-temperature is 46.9°F (8.3°C).

Humidity

The average relative humidity in Martinez is 68%.

Rainfall

In Martinez, during April, the rain falls for 4.6 days and regularly aggregates up to 0.28" (7mm) of precipitation. In Martinez, during the entire year, the rain falls for 48.9 days and collects up to 4.96" (126mm) of precipitation.

Daylight

In Martinez, California, the average length of the day is 13.2h.

Sunshine

In April, the average sunshine in Martinez is 10.3h.

UV index

In April, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV radiation for average individuals.
Note: In April, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. 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 April in Martinez?

The average high-temperature, in April, in Martinez, is 68.5°F (20.3°C), while the average low-temperature is 46.9°F (8.3°C).

What is the average humidity in April in Martinez?

The average relative humidity in April in Martinez is 68%.

How many days does it rain in April in Martinez?

In Martinez, during April, the rain falls for 4.6 days and regularly aggregates up to 0.28" (7mm) of precipitation.

What is the average length of the day in April in Martinez?

In April, the average length of the day is 13.2h.

How long on average sun shines in April in Martinez?

The average sunshine in April in Martinez is 10.3h.

What is the UV index reading in April in Martinez?

The average daily maximum UV index in April in Martinez is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in April
Martinez, CA

Average temperature in April - Martinez, CA
  • Average high temperature in April: 68.5°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 April: 46.9°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 April
Martinez, CA

Average pressure in April - Martinez, CA
  • Average pressure in April: 30.03"

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 April
Martinez, CA

Average wind speed in April - Martinez, CA
  • Average wind speed in April: 6.5mph

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 April
Martinez, CA

Average humidity in April - Martinez, CA
  • Average humidity in April: 68%

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 April
Martinez, CA

Average rainfall in April - Martinez, CA
  • Average rainfall in April: 0.28"

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 April
Martinez, CA

Average rainfall days in April - Martinez, CA
  • Average rainfall days in April: 4.6 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 April /
Average sunshine in April
Martinez, CA

Average daylight in April / Average sunshine in April - Martinez, CA
  • Average daylight in April: 13.2h

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 April: 10.3h

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 April
Martinez, CA

Average sunshine days in April - Martinez, CA
  • Average sunshine days in April: 25.3 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 April
Martinez, CA

Average UV index in April - Martinez, CA
  • Average UV index in April: 5

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 April
Martinez, CA

Average cloud cover in April - Martinez, CA
  • Average cloud cover in April: 27

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 April
Martinez, CA

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