July weather forecast
Tucson, AZ

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Sunset in downtown Tucson, Arizona with a skyline and a sentinel peak in the distance
Sunset in downtown Tucson, Arizona with a skyline and a sentinel peak in the distance

Weather in July

July embodies Tucson's monsoon season, transforming the arid region with a healthy dose of rainfall. Despite high rainfall, temperatures remain hot throughout the day, frequently leading to intermittent thunderstorms. As July transitions into August, the temperatures fluctuate marginally, retaining the city's warm climate. With the rainfall providing a modicum of relief from the heat, the wildlife flourishes. July observes the highest rain volume of the year, resulting in 1.42" (36mm) of rainfall.

Temperature

Tucson starts July with an average high-temperature of a tropical 94.5°F (34.7°C), a minor shift from June's 96.6°F (35.9°C). Throughout July, Tucson experiences a low-temperature average of 77°F (25°C).

Humidity

In Tucson, the average relative humidity in July is 37%.

Rainfall

The month with the most rainfall is July, when the rain falls for 13.3 days and typically aggregates up to 1.42" (36mm) of precipitation.

Snowfall

In Tucson, snow does not fall in February through December.

Daylight

The average length of the day in July is 14h and 1min.
On the first day of the month, sunrise is at 5:21 am and sunset at 7:34 pm. On the last day of July, sunrise is at 5:38 am and sunset at 7:21 pm MST.

Sunshine

In Tucson, the average sunshine in July is 11.9h.

UV index

The average daily maximum UV index in July is 7. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index, 7 during July, leads to the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in July?

An average high-temperature, in July, in Tucson, is 94.5°F (34.7°C) and the average low-temperature is 77°F (25°C).

What is the average humidity in July?

In Tucson, the average relative humidity in July is 37%.

What is the rainiest month?

The month with the most rainfall is July, when the rain falls for 13.3 days and typically aggregates up to 1.42" (36mm) of precipitation.

How many days does it rain in July?

In Tucson, during July, the rain falls for 13.3 days and regularly aggregates up to 1.42" (36mm) of precipitation.

When it does not snow?

February through December are months without snowfall.

How many hours of daylight does Tucson have in July?

In Tucson, the average day length in July is 14h and 1min.

What time are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:21 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 7:21 pm MST.

How long on average sun shines in July?

The average sunshine duration in July is 11.9h.

What is the UV index intensity in July?

In July, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Tucson, AZ

Average temperature in July - Tucson, AZ
  • Average high temperature in July: 94.5°F

The warmest month (with the highest average high temperature) is June (96.6°F).
The month with the lowest average high temperature is December (60.8°F).

  • Average low temperature in July: 77°F

The month with the highest average low temperature is July (77°F).
The coldest months (with the lowest average low temperature) are January and December (43°F).

Average pressure in July
Tucson, AZ

Average pressure in July - Tucson, AZ
  • Average pressure in July: 29.89"Hg

The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

Average wind speed in July
Tucson, AZ

Average wind speed in July - Tucson, AZ
  • Average wind speed in July: 6.2mph

The windiest months (with the highest average wind speed) are April and May (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in July
Tucson, AZ

Average humidity in July - Tucson, AZ
  • Average humidity in July: 37%

The month with the highest relative humidity is December (45%).
The month with the lowest relative humidity is June (19%).

Average rainfall in July
Tucson, AZ

Average rainfall in July - Tucson, AZ
  • Average rainfall in July: 1.42"

The wettest month (with the highest rainfall) is July (1.42").
The driest month (with the least rainfall) is May (0.08").

Average rainfall days in July
Tucson, AZ

Average rainfall days in July - Tucson, AZ
  • Average rainfall days in July: 13.3 days

The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is May (1.3 days).

Average snowfall in July
Tucson, AZ

Average snowfall in July - Tucson, AZ
  • Average snowfall in July: 0"

The month with the highest snowfall is January (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in July
Tucson, AZ

Average snowfall days in July - Tucson, AZ
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in July /
Average sunshine in July
Tucson, AZ

Average daylight in July / Average sunshine in July - Tucson, AZ
  • Average daylight in July: 14h and 0min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in July: 11h and 5min

The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

Average sunshine days in July
Tucson, AZ

Average sunshine days in July - Tucson, AZ
  • Average sunshine days in July: 13.3 days

The month with the most sunshine days is May (29.3 days).
The month with the least sunshine days is July (13.3 days).

Average UV index in July
Tucson, AZ

Average UV index in July - Tucson, AZ
  • Average UV index in July: 7

The month with the highest UV index is June (UV index 8).
The months with the lowest UV index are November and December (UV index 3).

Average cloud cover in July
Tucson, AZ

Average cloud cover in July - Tucson, AZ
  • Average cloud cover in July: 18

The month with the most cloud cover is December (Cloud cover 19).
The months with the least cloud cover are May and June (Cloud cover 7).

Average visibility in July
Tucson, AZ

Average visibility in July - Tucson, AZ
  • 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).

Tucson, Arizona, USA

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