July weather forecast
Rancho San Diego, CA

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Weather in July

July, like June, in Rancho San Diego, California, is a moderately hot summer month, with an average temperature varying between 63.9°F (17.7°C) and 81.7°F (27.6°C).

Temperature

The onset of July brings with it an average high-temperature of a still moderately hot 81.7°F (27.6°C), showing a negligible variation from the month before. In July, Rancho San Diego reports a consistent average low-temperature of 63.9°F (17.7°C) during the nights.

Heat index

July's average heat index is computed to be 84.2°F (29°C). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

In July, the average relative humidity is 62%.

Rainfall

In Rancho San Diego, in July, during 4.9 rainfall days, 0.39" (10mm) of precipitation is typically accumulated. In Rancho San Diego, during the entire year, the rain falls for 56.1 days and collects up to 8.27" (210mm) of precipitation.

Daylight

In July, the average length of the day is 14h and 4min.
On the first day of July, sunrise is at 5:43 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 7:46 pm PDT.

Sunshine

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

UV index

The months with the highest UV index in Rancho San Diego are June through September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In July, the maximum UV index of 6 suggests these recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average July temperature in Rancho San Diego?

The average high-temperature and low-temperature in Rancho San Diego during July are 81.7°F (27.6°C) and 63.9°F (17.7°C) respectively. In July, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is computed to be 84.2°F (29°C).

What is the average humidity in July in Rancho San Diego?

The average relative humidity in July in Rancho San Diego is 62%.

How many days does it rain in July in Rancho San Diego?

In Rancho San Diego, California, in July, it is raining for 4.9 days, with typically 0.39" (10mm) of accumulated precipitation.

How many hours of daylight does Rancho San Diego have in July?

In July, the average day length is 14h and 4min.

When is the sunrise / sunset in July in Rancho San Diego?

In July, on the first day of the month, sunrise is at 5:43 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 7:46 pm PDT.

What month has the most sunshine in Rancho San Diego?

With an average of 12.1h of sunshine, July has the most sunshine of the year in Rancho San Diego, California.

How long on average sun shines in July in Rancho San Diego?

In Rancho San Diego, the average sunshine duration in July is 12.1h.

What are the months with the highest UV index in Rancho San Diego?

June through September, with an average maximum UV index of 6, are months with the highest UV index in Rancho San Diego.

How high is the UV index in July in Rancho San Diego?

In July, the average daily maximum UV index in Rancho San Diego, California, is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe 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
Rancho San Diego, CA

Average temperature in July - Rancho San Diego, CA
  • Average high temperature in July: 81.7°F

The warmest month (with the highest average high temperature) is August (83.8°F).
The month with the lowest average high temperature is December (63.7°F).

  • Average low temperature in July: 63.9°F

The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is December (47.8°F).

Average pressure in July
Rancho San Diego, CA

Average pressure in July - Rancho San Diego, CA
  • Average pressure in July: 29.9"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.87"Hg).

Average wind speed in July
Rancho San Diego, CA

Average wind speed in July - Rancho San Diego, CA
  • Average wind speed in July: 4.7mph

The windiest month (with the highest average wind speed) is April (5.5mph).
The calmest month (with the lowest average wind speed) is October (4.3mph).

Average humidity in July
Rancho San Diego, CA

Average humidity in July - Rancho San Diego, CA
  • Average humidity in July: 62%

The month with the highest relative humidity is May (66%).
The month with the lowest relative humidity is November (53%).

Average rainfall in July
Rancho San Diego, CA

Average rainfall in July - Rancho San Diego, CA
  • Average rainfall in July: 0.39"

The wettest month (with the highest rainfall) is February (1.81").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days in July
Rancho San Diego, CA

Average rainfall days in July - Rancho San Diego, CA
  • Average rainfall days in July: 4.9 days

The month with the highest number of rainy days is March (7.7 days).
The month with the least rainy days is June (1.4 days).

Average daylight in July /
Average sunshine in July
Rancho San Diego, CA

Average daylight in July / Average sunshine in July - Rancho San Diego, CA
  • Average daylight in July: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in July: 12h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

Average sunshine days in July
Rancho San Diego, CA

Average sunshine days in July - Rancho San Diego, CA
  • Average sunshine days in July: 22.5 days

The month with the most sunshine days is June (27.7 days).
The month with the least sunshine days is February (21.9 days).

Average UV index in July
Rancho San Diego, CA

Average UV index in July - Rancho San Diego, CA
  • Average UV index in July: 6

The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).

Average cloud cover in July
Rancho San Diego, CA

Average cloud cover in July - Rancho San Diego, CA
  • Average cloud cover in July: 9

The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 7).

Average visibility in July
Rancho San Diego, CA

Average visibility in July - Rancho San Diego, 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).

Rancho San Diego, California, USA

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