April weather forecast and climate
Hayward, CA

The landscape of the famed Verdant Hills in Hayward, California
The landscape of the famed Verdant Hills in Hayward, California

Weather in April

April, like March, in Hayward, California, is another enjoyable spring month, with temperature in the range of an average low of 46.4°F (8°C) and an average high of 66.2°F (19°C).

Temperature

In Hayward, the average high-temperature is practically the same as in March - a still enjoyable 66.2°F (19°C). The average low-temperature, in Hayward, is 46.4°F (8°C).

Humidity

The average relative humidity in Hayward, California, is 70%.

Rainfall

In Hayward, during April, the rain falls for 7 days and regularly aggregates up to 0.63" (16mm) of precipitation. Throughout the year, there are 69.2 rainfall days, and 11.1" (282mm) of precipitation is accumulated.

Daylight

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

Sunshine

In April, the average sunshine is 10.5h.

UV index

In April, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 5 transform into the following instructions:
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. 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 April in Hayward?

In April, the average high-temperature is 66.2°F (19°C), and the average low-temperature is 46.4°F (8°C).

What is the average humidity in April in Hayward?

In April, the average relative humidity is 70%.

How many days does it rain in April in Hayward?

In April, in Hayward, California, the rain falls for 7 days. Throughout April, 0.63" (16mm) of precipitation is accumulated.

How many hours of daylight does Hayward have in April?

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

How many hours of sunshine does Hayward have in April?

The average sunshine in April in Hayward is 10.5h.

How high is the UV index in April in Hayward?

In Hayward, the average daily maximum UV index in April is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV rays.

Average temperature in April
Hayward, CA

Average temperature in April - Hayward, CA
  • Average high temperature in April: 66.2°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is December (55.9°F).

  • Average low temperature in April: 46.4°F

The month with the highest average low temperature is August (56.5°F).
The coldest months (with the lowest average low temperature) are January and December (43.7°F).

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Average pressure in April
Hayward, CA

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

The month with the highest atmospheric pressure is January (30.14").
Months with the lowest atmospheric pressure are June, August and September (29.92").

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Average wind speed in April
Hayward, CA

Average wind speed in April - Hayward, CA
  • Average wind speed in April: 6.3mph

The windiest month (with the highest average wind speed) is May (6.6mph).
The calmest month (with the lowest average wind speed) is November (4.6mph).

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Average humidity in April
Hayward, CA

Average humidity in April - Hayward, CA
  • Average humidity in April: 70%

The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is September (61%).

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Average rainfall in April
Hayward, CA

Average rainfall in April - Hayward, CA
  • Average rainfall in April: 0.63"

The wettest month (with the highest rainfall) is February (2.28").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in April
Hayward, CA

Average rainfall days in April - Hayward, CA
  • Average rainfall days in April: 7 days

The month with the highest number of rainy days is March (12.4 days).
The month with the least rainy days is August (0.9 days).

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Average daylight in April /
Average sunshine in April
Hayward, CA

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

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in April: 10.5h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 5.9h).

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Average sunshine days in April
Hayward, CA

Average sunshine days in April - Hayward, CA
  • Average sunshine days in April: 22.1 days

The month with the most sunshine days is August (28.9 days).
The month with the least sunshine days is March (17.3 days).

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Average UV index in April
Hayward, CA

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

The month with the highest UV index is June (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
Hayward, CA

Average cloud cover in April - Hayward, CA
  • Average cloud cover in April: 26

Months with the most cloud cover are March and December (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 7).

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Average visibility in April
Hayward, CA

Average visibility in April - Hayward, 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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