June weather forecast
San Luis, AZ

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Weather in June

June in San Luis, Arizona endures the highest temperatures of the year, peaking at a sweltering 102.7°F (39.3°C) - the beginning of a particularly hot, arid period. With increasing heat, the town depicts a typical desert-like climate that often gets mistaken for being inhabitable. However, reduced relative humidity coupled with a decreased cloud percentage helps keep the environment dry, thus mitigating the impact of the excruciating sun temperatures. Longer day lengths offer extended hours of daylight, while a high UV index calls for necessary sun protection measures. June's exceptional climatic conditions make it the warmest month for San Luis.

Temperature

San Luis sees an increase in average high-temperatures during June, moving from a hot 92.8°F (33.8°C) in May to a torrid 102.7°F (39.3°C). June nights report a substantial dip from daytime highs to an average of 77°F (25°C).

Humidity

The least humid month in San Luis is June, with an average relative humidity of 23%.

Rainfall

Months with rainfall in San Luis are January through April, June through December. June is the first month it rains. Throughout June, in the average 0.8 rainfall days, it receives 0.04" (1mm) of precipitation. Throughout the year, there are 25 rainfall days, and 2.24" (57mm) of precipitation is accumulated.

Daylight

June has the longest days of the year, with an average of 14h and 18min of daylight.
On the first day of the month, sunrise is at 5:32 am and sunset at 7:41 pm. On the last day of June, sunrise is at 5:35 am and sunset at 7:50 pm MST.

Sunshine

June and July, with an average of 12.1h of sunshine, are months with the most sunshine in San Luis.

UV index

The months with the highest UV index in San Luis are June through September, with an average maximum UV index of 8. A UV Index estimate of 8 to 10 represents a very high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 8 in June converts into the following recommendations:
Without adequate protection, skin and eyes might suffer damage. Ensure precautions are in place. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
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Frequently asked questions

How hot does it get in San Luis in June?

The average high-temperature and low-temperature in San Luis, Arizona, during June are 102.7°F (39.3°C) and 77°F (25°C) respectively.

What is the least humid month in San Luis?

The least humid month in San Luis is June, with an average relative humidity of 23%.

What is the average humidity in June in San Luis?

In June, the average relative humidity in San Luis is 23%.

When does it start to rain in San Luis?

June is the first month it rains. Throughout June, in the average 0.8 rainfall days, it receives 0.04" (1mm) of precipitation.

When are the longest days in San Luis?

With an average of 14h and 18min of daylight, June has the longest days of the year.

What is the average length of the day in June in San Luis?

The average day length in June is 14h and 15min.

When are sunrise and sunset in June in San Luis?

In June, on the first day of the month, sunrise is at 5:32 am and sunset at 7:41 pm. On the last day of the month, in San Luis, sunrise is at 5:35 am and sunset at 7:50 pm MST.

What are the months with the most sunshine in San Luis?

The months with the most sunshine in San Luis, Arizona, are June and July, with an average of 12.1h of sunshine.

How many hours of sunshine does San Luis have in June?

In San Luis, the average sunshine duration in June is 12.1h.

When is the highest UV index in San Luis?

June through September, with an average maximum UV index of 8, are months with the highest UV index.

How high is the UV index in June in San Luis?

In San Luis, Arizona, the average daily maximum UV index in June is 8. A UV Index value of 8 to 10 symbolizes a very high health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
San Luis, AZ

Average temperature in June - San Luis, AZ
  • Average high temperature in June: 102.7°F

The warmest month (with the highest average high temperature) is July (106.2°F).
The month with the lowest average high temperature is December (67.1°F).

  • Average low temperature in June: 77°F

The month with the highest average low temperature is August (86.2°F).
The coldest month (with the lowest average low temperature) is December (50.5°F).

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Average pressure in June
San Luis, AZ

Average pressure in June - San Luis, AZ
  • Average pressure in June: 29.75"Hg

The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.75"Hg).

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Average wind speed in June
San Luis, AZ

Average wind speed in June - San Luis, AZ
  • Average wind speed in June: 7.8mph

The windiest month (with the highest average wind speed) is July (8.5mph).
The calmest month (with the lowest average wind speed) is November (6.7mph).

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Average humidity in June
San Luis, AZ

Average humidity in June - San Luis, AZ
  • Average humidity in June: 23%

The month with the highest relative humidity is December (38%).
The month with the lowest relative humidity is June (23%).

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Average rainfall in June
San Luis, AZ

Average rainfall in June - San Luis, AZ
  • Average rainfall in June: 0.04"

The wettest month (with the highest rainfall) is July (0.39").
The driest month (with the least rainfall) is May (0").

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Average rainfall days in June
San Luis, AZ

Average rainfall days in June - San Luis, AZ
  • Average rainfall days in June: 0.8 days

The month with the highest number of rainy days is July (5.1 days).
The month with the least rainy days is May (0.3 days).

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Average daylight in June /
Average sunshine in June
San Luis, AZ

Average daylight in June / Average sunshine in June - San Luis, AZ
  • Average daylight in June: 14h and 2min

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 6min).

  • Average sunshine in June: 12h and 1min

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).

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Average sunshine days in June
San Luis, AZ

Average sunshine days in June - San Luis, AZ
  • Average sunshine days in June: 29.3 days

The month with the most sunshine days is May (30.4 days).
The month with the least sunshine days is July (24.3 days).

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Average UV index in June
San Luis, AZ

Average UV index in June - San Luis, AZ
  • Average UV index in June: 8

The months with the highest UV index are June, July, August and September (UV index 8).
The month with the lowest UV index is December (UV index 4).

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Average cloud cover in June
San Luis, AZ

Average cloud cover in June - San Luis, AZ
  • Average cloud cover in June: 5

The month with the most cloud cover is December (Cloud cover 18).
The month with the least cloud cover is June (Cloud cover 5).

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Average visibility in June
San Luis, AZ

Average visibility in June - San Luis, AZ
  • Average visibility in June: 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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San Luis, Arizona, USA

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