Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
The average high-temperature mildly increases in April, edging from a moderately hot 80.2°F (26.8°C) in March to a hot 86.5°F (30.3°C). From significant daily highs, San Luis's nights in April cool down to an average low-temperature of 62.1°F (16.7°C).Humidity
The average relative humidity in April is 25%.Rainfall
April is the last month it rains. During 1.5 rainfall days, in April, 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
In April, the average length of the day is 13h and 0min.On the first day of April, sunrise is at 6:26 am and sunset at 6:59 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 7:20 pm MST.
Sunshine
In San Luis, the average sunshine in April is 10.1h.UV index
In April, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.Note: In April, the UV index of 7 transforms into the following advice:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in April?
What is the average humidity in April?
What is the last month it rains?
How many hours of daylight does San Luis have in April?
When is the sunrise / sunset in April?
How many hours of sunshine does San Luis have in April?
How high is the UV index in April?
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).
Average pressure in April
San Luis, AZ
- Average pressure in April: 29.87"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).
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).
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%).
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").
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).
Average daylight in April /
Average sunshine in April
San Luis, AZ
- Average daylight in April: 13h and 0min
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 April: 10h 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).
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).
Average UV index in April
San Luis, AZ
- Average UV index in April: 7
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).
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).
Average visibility in April
San Luis, AZ
- Average visibility in April: 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).
San Luis, Arizona, USA
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