April weather forecast and climate
San Luis, AZ

Weather in April

April in San Luis, Arizona, is a tropical spring month, with average temperature fluctuating between 62.1°F (16.7°C) and 86.5°F (30.3°C).

Temperature

In April, the average high-temperature slightly increases, from a warm 80.2°F (26.8°C) in March, to a tropical 86.5°F (30.3°C). The average low-temperature, in April, is 62.1°F (16.7°C).

Humidity

In April, the average relative humidity is 25%.

Rainfall

April is the last month it rains. During 1.5 rainfall days, San Luis aggregates 0.08" (2mm) of precipitation. Throughout the year, there are 25 rainfall days, and 2.24" (57mm) of precipitation is accumulated.

Daylight

The average length of the day in San Luis, Arizona, is 13h.

Sunshine

The average sunshine in April is 10.1h.

UV index

In San Luis, the average daily maximum UV index in April is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 7 in April transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in April in San Luis?

The average high-temperature, in April, is 86.5°F (30.3°C), while the average low-temperature is 62.1°F (16.7°C).

What is the average humidity in April in San Luis?

In San Luis, the average relative humidity in April is 25%.

What is the last month it rains in San Luis?

April is the last month it rains. During 1.5 rainfall days, in April, San Luis aggregates 0.08" (2mm) of precipitation.

How many hours of daylight does San Luis have in April?

In April, the average length of the day in San Luis, Arizona, is 13h.

How long on average sun shines in April in San Luis?

The average sunshine in April in San Luis, Arizona, is 10.1h.

What is the UV index intensity in April in San Luis?

In April, the average daily maximum UV index in San Luis, Arizona, is 7. A UV Index of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV rays.

Average temperature in April
San Luis, AZ

Average temperature in April - San Luis, AZ
  • Average high temperature in April: 86.5°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 April: 62.1°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 in April
San Luis, AZ

Average pressure in April - San Luis, AZ
  • Average pressure in April: 29.87"

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 in April
San Luis, AZ

Average wind speed in April - San Luis, AZ
  • Average wind speed in April: 8.3mph

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 April
San Luis, AZ

Average humidity in April - San Luis, AZ
  • Average humidity in April: 25%

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 April
San Luis, AZ

Average rainfall in April - San Luis, AZ
  • Average rainfall in April: 0.08"

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 April
San Luis, AZ

Average rainfall days in April - San Luis, AZ
  • Average rainfall days in April: 1.5 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 April /
Average sunshine in April
San Luis, AZ

Average daylight in April / Average sunshine in April - San Luis, AZ
  • Average daylight in April: 13h

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

  • Average sunshine in April: 10.1h

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 in April
San Luis, AZ

Average sunshine days in April - San Luis, AZ
  • Average sunshine days in April: 28.4 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 April
San Luis, AZ

Average UV index in April - San Luis, AZ
  • Average UV index in April: 7

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 April
San Luis, AZ

Average cloud cover in April - San Luis, AZ
  • Average cloud cover in April: 10

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 April
San Luis, AZ

Average visibility in April - San Luis, AZ
  • Average visibility in April: 6mi

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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