Monthly weather forecast and climate
San Luis, AZ

Weather in January

January is an agreeable winter month in San Luis, Arizona, with average temperature varying between 69.3°F (20.7°C) and 51.1°F (10.6°C). In San Luis, the average high-temperature is essentially the same as in December - a pleasant 69.3°F (20.7°C). Weather in January »

Weather in February

The last month of the winter, February, is also an agreeable month in San Luis, Arizona, with average temperature ranging between min 53.2°F (11.8°C) and max 72.9°F (22.7°C). In February, the average high-temperature is almost the same as in January - a still pleasant 72.9°F (22.7°C). Weather in February »

Weather in March

The first month of the spring, March, is a warm month in San Luis, Arizona, with temperature in the range of an average high of 80.2°F (26.8°C) and an average low of 58.3°F (14.6°C). In San Luis, the average high-temperature in March slightly increases, from a pleasant 72.9°F (22.7°C) in February, to a warm 80.2°F (26.8°C). Weather in March »

Weather in April

April in San Luis, Arizona, is a hot spring month, with temperature in the range of an average high of 86.5°F (30.3°C) and an average low of 62.1°F (16.7°C). In April, the average high-temperature marginally rises, from a warm 80.2°F (26.8°C) in March, to a hot 86.5°F (30.3°C). Weather in April »

Weather in May

The last month of the spring, May, is another tropical month in San Luis, Arizona, with average temperature ranging between max 92.8°F (33.8°C) and min 68.7°F (20.4°C). In May, the average high-temperature slightly increases, from 86.5°F (30.3°C) in April, to a still hot 92.8°F (33.8°C). Weather in May »

Weather in June

June, the first month of the summer, in San Luis, is a sweltering month, with temperature in the range of an average low of 77°F (25°C) and an average high of 102.7°F (39.3°C). In June, the average high-temperature increases, from a tropical 92.8°F (33.8°C) in May, to a torrid 102.7°F (39.3°C). Weather in June »

Weather in July

July is a blistering summer month in San Luis, Arizona, with average temperature ranging between max 106.2°F (41.2°C) and min 84.9°F (29.4°C). The warmest month is July, with an average high-temperature of 106.2°F (41.2°C) and an average low-temperature of 84.9°F (29.4°C). Weather in July »

Weather in August

The last month of the summer, August, is another extremely hot month in San Luis, Arizona, with temperature in the range of an average low of 86.2°F (30.1°C) and an average high of 105.8°F (41°C). In San Luis, the average high-temperature is almost the same as in July - a still scorching 105.8°F (41°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a very hot month in San Luis, Arizona, with temperature in the range of an average high of 99.7°F (37.6°C) and an average low of 80.6°F (27°C). In San Luis, Arizona, the average high-temperature slightly decreases, from a blistering 105.8°F (41°C) in August, to a very hot 99.7°F (37.6°C). Weather in September »

Weather in October

October, the same as September, in San Luis, Arizona, is another hot autumn month, with average temperature ranging between max 88.5°F (31.4°C) and min 69.8°F (21°C). In San Luis, the average high-temperature in October decreases, from a very hot 99.7°F (37.6°C) in September, to a hot 88.5°F (31.4°C). Weather in October »

Weather in November

November, the last month of the autumn, in San Luis, is also a moderately hot month, with average temperature varying between 77.2°F (25.1°C) and 59°F (15°C). In San Luis, the average high-temperature drops, from a tropical 88.5°F (31.4°C) in October, to a warm 77.2°F (25.1°C). Weather in November »

Weather in December

The first month of the winter, December, is also an enjoyable month in San Luis, Arizona, with average temperature fluctuating between 67.1°F (19.5°C) and 50.5°F (10.3°C). The coldest month is December, with an average high-temperature of 67.1°F (19.5°C) and an average low-temperature of 50.5°F (10.3°C). Weather in December »
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FAQ

How much does it rain in San Luis?

In San Luis, during the entire year, the rain falls for 25 days and collects up to 2.24" (57mm) of precipitation.

What is the driest month in San Luis?

The only month without rainfall in San Luis, Arizona, is May.

What is the least humid month in San Luis?

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

When does it rain in San Luis?

January through April, June through December are months with rainfall.

When are the longest days in San Luis?

June has the longest days of the year in San Luis, with an average of 14.3h of daylight.

What is the month with the most sunshine in San Luis?

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

What is the month with the highest UV index in San Luis?

Months with the highest UV index in San Luis are June through September, with an average maximum UV index of 8.

What is the warmest month in San Luis?

The warmest month in San Luis, Arizona, is July, with an average high-temperature of 106.2°F (41.2°C) and an average low-temperature of 84.9°F (29.4°C).

What is the wettest month in San Luis?

The month with the most rainfall is July when the rain falls for 5.1 days and typically aggregates up to 0.39" (10mm) of precipitation.

What is the coldest month in San Luis?

December is the coldest month, with an average high-temperature of 67.1°F (19.5°C) and an average low-temperature of 50.5°F (10.3°C).

What is the most humid month in San Luis?

The most humid month is December, with an average relative humidity of 38%.

What is the month with the shortest days in San Luis?

With an average of 10h of daylight, December has the shortest days of the year.

What is the month with the least sunshine in San Luis?

The month with the least sunshine is December, with an average of 7.1h of sunshine.

What is the month with the lowest UV index in San Luis?

With an average maximum UV index of 4, December is the month with the lowest UV index in San Luis.

Average temperature
San Luis, AZ

Average temperature - San Luis, AZ

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).

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
San Luis, AZ

Average pressure - San Luis, AZ

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

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Average wind speed
San Luis, AZ

Average wind speed - San Luis, AZ

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 rainfall
San Luis, AZ

Average rainfall - San Luis, AZ

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
San Luis, AZ

Average rainfall days - San Luis, AZ

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 / Average sunshine
San Luis, AZ

Average daylight / Average sunshine - San Luis, AZ

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

Months with the most sunshine are June and July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 7.1h).

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Average sunshine days
San Luis, AZ

Average sunshine days - San Luis, AZ

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 visibility
San Luis, AZ

Average visibility - San Luis, AZ

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

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