July weather forecast
Fairfield, CA

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Weather in July

July in Fairfield, California, is a hot summer month, with an average temperature ranging between max 87.4°F (30.8°C) and min 56.1°F (13.4°C).

Temperature

With average temperatures fluctuating between a high of 87.4°F (30.8°C) and a low of 56.1°F (13.4°C), July stands out as the warmest month.

Heat index

During July, the heat index is appraised at a tropical 91.4°F (33°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', comes about by integrating the temperature readings with the humidity levels. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.

Humidity

The average relative humidity in July in Fairfield, California, is 55%.

Rainfall

July is the last month it rains. During 1.1 rainfall days, in July, Fairfield aggregates 0.04" (1mm) of precipitation. In Fairfield, during the entire year, the rain falls for 71.4 days and collects up to 12.13" (308mm) of precipitation.

Daylight

In July, the average length of the day is 14h and 31min.
On the first day of the month, sunrise is at 5:48 am and sunset at 8:35 pm. On the last day of July, sunrise is at 6:10 am and sunset at 8:18 pm PDT.

Sunshine

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

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 6 during July translates into the following directions:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Frequently asked questions

What time of the year is the hottest?

During the warmest month in Fairfield, July, temperatures average a high of 87.4°F (30.8°C) and a low of 56.1°F (13.4°C).

How hot does it get in July?

An average high-temperature, in July, in Fairfield, is 87.4°F (30.8°C) and the average low-temperature is 56.1°F (13.4°C). In July, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 91.4°F (33°C).

What is the average humidity in July?

In Fairfield, the average relative humidity in July is 55%.

What is the last month it rains in Fairfield?

July is the last month it rains in Fairfield. During 1.1 rainfall days, in July, Fairfield aggregates 0.04" (1mm) of precipitation.

What is the average length of the day in July?

The average day length in July in Fairfield is 14h and 31min.

What time are sunrise and sunset in July?

On the first day of July, sunrise is at 5:48 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 8:18 pm PDT.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 12.1h of sunshine.

How long on average sun shines in July?

In July, the average sunshine duration is 12.1h.

What are the months with the highest UV index?

The months with the highest UV index are June through August, with an average maximum UV index of 6.

What is the UV index intensity in July in Fairfield?

In July, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Fairfield, CA

Average temperature in July - Fairfield, CA
  • Average high temperature in July: 87.4°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is December (54.9°F).

  • Average low temperature in July: 56.1°F

The month with the highest average low temperature is September (57.6°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).

Average pressure in July
Fairfield, CA

Average pressure in July - Fairfield, CA
  • Average pressure in July: 29.92"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).

Average wind speed in July
Fairfield, CA

Average wind speed in July - Fairfield, CA
  • Average wind speed in July: 7mph

The windiest months (with the highest average wind speed) are May, June and July (7mph).
The calmest months (with the lowest average wind speed) are January and November (4.5mph).

Average humidity in July
Fairfield, CA

Average humidity in July - Fairfield, CA
  • Average humidity in July: 55%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is September (52%).

Average rainfall in July
Fairfield, CA

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

The wettest month (with the highest rainfall) is February (2.4").
The driest month (with the least rainfall) is August (0").

Average rainfall days in July
Fairfield, CA

Average rainfall days in July - Fairfield, CA
  • Average rainfall days in July: 1.1 days

The month with the highest number of rainy days is March (12.9 days).
The month with the least rainy days is August (0.7 days).

Average daylight in July /
Average sunshine in July
Fairfield, CA

Average daylight in July / Average sunshine in July - Fairfield, CA
  • Average daylight in July: 14h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • 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: 5h and 42min).

Average sunshine days in July
Fairfield, CA

Average sunshine days in July - Fairfield, CA
  • Average sunshine days in July: 29.9 days

The month with the most sunshine days is August (30.2 days).
The month with the least sunshine days is March (17 days).

Average UV index in July
Fairfield, CA

Average UV index in July - Fairfield, CA
  • Average UV index in July: 6

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in July
Fairfield, CA

Average cloud cover in July - Fairfield, CA
  • Average cloud cover in July: 5

The months with the most cloud cover are March and December (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 5).

Average visibility in July
Fairfield, CA

Average visibility in July - Fairfield, 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).

Fairfield, California, USA

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