July 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 July

July, like June, in Hayward, California, is a moderately hot summer month, with average temperature varying between 55.2°F (12.9°C) and 80.2°F (26.8°C).

Temperature

With an average high-temperature of 80.2°F (26.8°C) and an average low-temperature of 55.2°F (12.9°C), July is the warmest month.

Humidity

The average relative humidity in Hayward is 63%.

Rainfall

Months with the least rainfall are July and August Rain falls for 1.5 days and accumulates 0.04" (1mm) of rain.

Daylight

In Hayward, California, the average length of the day is 14.5h.

Sunshine

With an average of 12.1h of sunshine, July has the most sunshine of the year.

UV index

In July, 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 rays for the ordinary person.
Note: The average daily UV index of 5 in July 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 warmest month in Hayward?

July is the warmest month in Hayward, California, with an average high-temperature of 80.2°F (26.8°C) and an average low-temperature of 55.2°F (12.9°C).

What is the temperature in July in Hayward?

In July, in Hayward, the average high-temperature is 80.2°F (26.8°C), and the average low-temperature is 55.2°F (12.9°C).

What is the average humidity in July in Hayward?

In July, the average relative humidity in Hayward, California, is 63%.

How many days does it rain in July in Hayward?

In Hayward, during July, the rain falls for 1.5 days and regularly aggregates up to 0.04" (1mm) of precipitation.

What is the driest month in Hayward?

Months with the least rainfall in Hayward, California, are July and August Rain falls for 1.5 days and accumulates 0.04" (1mm) of rain.

How many hours of daylight does Hayward have in July?

In July, the average length of the day is 14.5h.

What month has the most sunshine in Hayward?

July has the most sunshine of the year in Hayward, California, with an average of 12.1h of sunshine.

How long on average sun shines in July in Hayward?

In Hayward, California, the average sunshine in July is 12.1h.

What is the UV index reading in July in Hayward?

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

Average temperature in July
Hayward, CA

Average temperature in July - Hayward, CA
  • Average high temperature in July: 80.2°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 July: 55.2°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 July
Hayward, CA

Average pressure in July - Hayward, CA
  • Average pressure in July: 29.93"

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 July
Hayward, CA

Average wind speed in July - Hayward, CA
  • Average wind speed in July: 5.7mph

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 July
Hayward, CA

Average humidity in July - Hayward, CA
  • Average humidity in July: 63%

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 July
Hayward, CA

Average rainfall in July - Hayward, CA
  • Average rainfall in July: 0.04"

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 July
Hayward, CA

Average rainfall days in July - Hayward, CA
  • Average rainfall days in July: 1.5 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 July /
Average sunshine in July
Hayward, CA

Average daylight in July / Average sunshine in July - Hayward, CA
  • Average daylight in July: 14.5h

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 July: 12.1h

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 July
Hayward, CA

Average sunshine days in July - Hayward, CA
  • Average sunshine days in July: 28.8 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 July
Hayward, CA

Average UV index in July - Hayward, CA
  • Average UV index in July: 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 July
Hayward, CA

Average cloud cover in July - Hayward, CA
  • Average cloud cover in July: 7

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 July
Hayward, CA

Average visibility in July - Hayward, CA
  • Average visibility in July: 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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