July weather forecast
Redwood City, CA

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The intricate design of the organized Redwood City in California, with a scenic view of the harbor and the rest of the city
The intricate design of the organized Redwood City in California, with a scenic view of the harbor and the rest of the city

Weather in July

July, like June, is an agreeable summer month in Redwood City, California, with temperature in the range of an average low of 54.5°F (12.5°C) and an average high of 73°F (22.8°C).

Temperature

The warmest period is usually observed in July and August, with the average high-temperature peaking at 73°F (22.8°C).

Humidity

In Redwood City, the average relative humidity in July is 72%.

Rainfall

July and August are months with the least rain when the rain falls for 1.5 days and typically aggregates up to 0.04" (1mm) of rain.

Ocean temperature

In Redwood City, the average seawater temperature in July is 56.5°F (13.6°C).
Note: Unprotected swimming in 56.5°F (13.6°C) is dangerous due to potential cold shock. Especially when temperatures go below 50°F (10°C), leading to hyperventilation.

Daylight

In July, the average length of the day in Redwood City, California, is 14h and 27min.
On the first day of July, sunrise is at 5:52 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 8:17 pm PDT.

Sunshine

The month with the most sunshine in Redwood City is July, with an average of 12h of sunshine.

UV index

June through September, with an average maximum UV index of 5, are months with the highest UV index in Redwood City. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In July, the maximum UV index of 5 translates into these guidelines:
Put precautions into practice - Protective measures against sun-induced damage are advised. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
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Frequently asked questions

What part of the year is the hottest in Redwood City?

The months of July and August bring the highest temperatures in Redwood City, California, averaging a high of 73°F (22.8°C).

What is the temperature in July in Redwood City?

In July, in Redwood City, the average high-temperature is 73°F (22.8°C), and the average low-temperature is 54.5°F (12.5°C).

What is the average humidity in July in Redwood City?

In Redwood City, the average relative humidity in July is 72%.

What is the driest month in Redwood City?

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

How many days does it rain in July in Redwood City?

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

What is the water temperature in July in Redwood City?

In July, the average ocean temperature is 56.5°F (13.6°C). Swimming in 56.5°F (13.6°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

How many hours of daylight does Redwood City have in July?

The average day length in July in Redwood City is 14h and 27min.

When are sunrise and sunset in July in Redwood City?

In July, on the first day of the month, sunrise is at 5:52 am and sunset at 8:34 pm. On the last day of the month, in Redwood City, California, sunrise is at 6:13 am and sunset at 8:17 pm PDT.

What month has the most sunshine in Redwood City?

July has the most sunshine of the year in Redwood City, with an average of 12h of sunshine.

How many hours of sunshine does Redwood City have in July?

In July, the average sunshine duration in Redwood City is 12h.

What are the months with the highest UV index in Redwood City?

The months with the highest UV index are June through September, with an average maximum UV index of 5.

What is the UV index intensity in July in Redwood City?

In July, the average daily maximum UV index in Redwood City, California, is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Redwood City, CA

Average temperature in July - Redwood City, CA
  • Average high temperature in July: 73°F

The warmest months (with the highest average high temperature) are July and August (73°F).
The month with the lowest average high temperature is December (55.9°F).

  • Average low temperature in July: 54.5°F

The month with the highest average low temperature is September (56.7°F).
The coldest month (with the lowest average low temperature) is February (46°F).

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Average pressure in July
Redwood City, CA

Average pressure in July - Redwood City, CA
  • Average pressure in July: 29.93"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).

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Average wind speed in July
Redwood City, CA

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

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest months (with the lowest average wind speed) are August, September and October (5.5mph).

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Average humidity in July
Redwood City, CA

Average humidity in July - Redwood City, CA
  • Average humidity in July: 72%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in July
Redwood City, CA

Average rainfall in July - Redwood City, CA
  • Average rainfall in July: 0.04"

The wettest month (with the highest rainfall) is February (2.36").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in July
Redwood City, CA

Average rainfall days in July - Redwood City, CA
  • Average rainfall days in July: 1.5 days

The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is August (0.8 days).

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Average sea temperature in July
Redwood City, CA

Average sea temperature in July - Redwood City, CA
  • Average sea temperature in July: 56.4°F

The best months for swimming (with the highest average sea temperature) are August and September (57.7°F).
The coldest month (with the lowest average sea temperature) is April (53.4°F).

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Average daylight in July /
Average sunshine in July
Redwood City, CA

Average daylight in July / Average sunshine in July - Redwood City, CA
  • Average daylight in July: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in July: 12h and 0min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

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Average sunshine days in July
Redwood City, CA

Average sunshine days in July - Redwood City, CA
  • Average sunshine days in July: 27.5 days

The month with the most sunshine days is August (27.6 days).
The month with the least sunshine days is March (17.5 days).

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Average UV index in July
Redwood City, CA

Average UV index in July - Redwood City, CA
  • Average UV index in July: 5

The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are November and December (UV index 3).

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Average cloud cover in July
Redwood City, CA

Average cloud cover in July - Redwood City, CA
  • Average cloud cover in July: 9

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 9).

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Average visibility in July
Redwood City, CA

Average visibility in July - Redwood City, CA
  • Average visibility in July: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Redwood City, California, USA

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